Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 70T3599S166BF

Name: 70T3599S166BF
Brand: Renesas
SKU: 70T3599S166BF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 70T3599S166BF

Manufacturer:: Renesas

Category:: Memory

Package:: 208-LFBGA

Datasheet:: 70T3599S166BF.pdf

Description:: IC SRAM 4.5MBIT PAR 208CABGA

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,346

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

70T3599S166BF from Integrated Device Technology is a high-speed 256K × 36-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location. It operates at 166MHz (3.6ns access), supports independent 2.5V core and selectable 2.5V/3.3V I/O supplies per port, and features pipelined or flow-through output modes. Used in real-time packet buffering for telecom line cards and FPGA co-processor interconnects.

For engineers reviewing the 70T3599S166BF datasheet, 70T3599S166BF pinout, 70T3599S166BF application, or 70T3599S166BF equivalent, key selection criteria include industrial temperature support (–40°C to +85°C), 208-pin fpBGA package, JTAG-compliant IEEE 1149.1 test interface, and dual-chip-enable depth expansion capability without external logic.

Technical Context

This device implements fully synchronous operation on both left and right ports with register-controlled inputs, enabling minimal setup/hold times (1.5ns setup, 0.5ns hold @ 200MHz). Its dual-port memory array uses dedicated address/data/control paths per port, with independent clocking (CLKL/CLKR), chip enables (CE0L/CE1L, CE0R/CE1R), and byte enables (BE0–BE3) for 9-bit granularity.

The architecture includes configurable pipeline/flow-through output mode (PL/FTL/R), address counter with repeat and enable (CNTENL/R, REPEATL/R), ADS-triggered address strobe, and collision/interrupt flag generation. Sleep mode (ZZL/ZZR) disables dynamic inputs while preserving JTAG accessibility.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256K × 36 bits (9.2 Mbit); supports 256K-word depth with 36-bit parallel I/O per port
Max Clock Frequency	166 MHz (industrial temp); enables 5 ns cycle time in pipelined mode for high-throughput burst transfers
Access Time	3.6 ns (max, industrial); guarantees deterministic data valid window for timing-critical control plane buffers
Supply Voltages	VDD = 2.5 V ±100 mV (core); VDDQ = 2.5 V or 3.3 V ±150/±100 mV per port (I/O); OPTL/R selects level
Operating Temperature	–40°C to +85°C; qualified for industrial-grade embedded systems requiring thermal robustness
Package	208-pin fine-pitch BGA (BF208/BFG208); 15 mm × 15 mm body, 0.8 mm ball pitch, RoHS-compliant
JTAG Support	IEEE 1149.1 compliant (TCK, TMS, TDI, TDO, TRST); functional in BF208 package; not supported in PQFP

Pinout & Package

70T3599S166BF is housed in a 208-pin fine-pitch Ball Grid Array (fpBGA) package (BF208/BFG208), measuring 15 mm × 15 mm × 1.4 mm with 0.8 mm ball pitch. All VDD pins require 2.5 V; VDDQ pins must match OPT pin configuration (3.3 V if OPT = VDD, 2.5 V if OPT = VSS). A17L and A17R are no-connect (NC) pins per datasheet note.

Pin/Terminal	Circuit Role	Design Meaning
CLKL / CLKR	Port-synchronous clock input	Edge-triggered master clock for left/right port registers; all control/data/address sampled on rising edge
CE0L/CE1L, CE0R/CE1R	Dual chip enable inputs	Enable depth expansion: CE0X = L & CE1X = H activates port; dual enables allow stacking without glue logic
PL/FTL / PL/FTR	Pipeline/Flow-through mode select	VIH = pipelined (1-cycle latency, tCD2 = 3.6 ns); VIL = flow-through (0-cycle latency, tCD1 = 12 ns)
ADSL / ADSR	Address strobe enable	Latches current address into internal counter; enables sequential burst access without external address increment logic
INTL / INTR, COLL / COLR	Asynchronous status flags	Open-drain outputs signaling interrupt or write collision between ports; require external pull-up resistors
ZZL / ZZR	Sleep mode control	VIH disables dynamic inputs (reducing ISB to 5–15 mA), retains JTAG and static pin states (OPT, PL/FT)

Key Features

Feature	Design Value
True dual-port memory cells	Enables concurrent read/write to identical addresses-critical for lock-free FIFOs and shared-memory inter-processor communication
Dual-cycle deselect (DCD)	Chip enables are double-buffered in pipelined mode, ensuring clean deactivation across two clock cycles to prevent bus contention
Independent I/O voltage control	OPTL/R pins configure each port for 2.5 V or 3.3 V signaling-allows interfacing with mixed-voltage FPGAs or ASICs
Address counter with repeat	CNTENL/R enables auto-increment; REPEATL/R resets counter to last ADS-loaded address-simplifies burst DMA controller design
JTAG boundary scan	Fully compliant IEEE 1149.1 test interface with TAP controller-supports production testing and in-system debug of PCB interconnects

Applications

Telecom Packet Buffering	FPGA Co-Processor Interconnect
Use Scenario: Storing incoming/outgoing ATM or Ethernet frames in carrier-grade line cards where ingress and egress paths operate independently. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared buffer between line interface ASIC and traffic manager; left port handles ingress, right port handles egress. Use Value: Simultaneous access eliminates arbitration delay; 166MHz industrial-grade timing ensures deterministic frame handling under thermal stress.	Use Scenario: High-bandwidth data exchange between Xilinx Kintex FPGA and ARM-based control processor in radar signal processing modules. IC Role / Device Role / Timing Role: Serves as low-latency scratchpad memory for FFT coefficient sharing; pipelined mode synchronizes with FPGA's 166MHz clock domain. Use Value: 3.6ns access time meets tight setup/hold margins; independent VDDQ per port bridges 2.5V FPGA I/O and 3.3V processor bus.
Industrial Motion Controller	Medical Imaging Data Pipeline
Use Scenario: Real-time coordination of multi-axis servo drives in CNC machines, requiring synchronized position/velocity updates from PLC and motion IC. IC Role / Device Role / Timing Role: Acts as dual-access register file: PLC writes setpoints to left port; motion IC reads/writes status via right port with collision detection. Use Value: Collision flags (COLL/COLR) alert firmware to concurrent access conflicts; –40°C to +85°C rating ensures reliability in uncooled enclosures.	Use Scenario: Temporary storage of raw CT/MRI scan lines during reconstruction, where acquisition engine and GPU processor access overlapping memory regions. IC Role / Device Role / Timing Role: Provides non-blocking memory for pipelined image processing-acquisition fills rows while GPU processes prior rows. Use Value: 208-pin fpBGA enables compact layout near FPGA; JTAG support simplifies field calibration and diagnostic trace capture.

Telecom Packet Buffering

FPGA Co-Processor Interconnect

Use Scenario: Storing incoming/outgoing ATM or Ethernet frames in carrier-grade line cards where ingress and egress paths operate independently.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared buffer between line interface ASIC and traffic manager; left port handles ingress, right port handles egress.

Use Value: Simultaneous access eliminates arbitration delay; 166MHz industrial-grade timing ensures deterministic frame handling under thermal stress.

Use Scenario: High-bandwidth data exchange between Xilinx Kintex FPGA and ARM-based control processor in radar signal processing modules.

IC Role / Device Role / Timing Role: Serves as low-latency scratchpad memory for FFT coefficient sharing; pipelined mode synchronizes with FPGA's 166MHz clock domain.

Use Value: 3.6ns access time meets tight setup/hold margins; independent VDDQ per port bridges 2.5V FPGA I/O and 3.3V processor bus.

Industrial Motion Controller

Medical Imaging Data Pipeline

Use Scenario: Real-time coordination of multi-axis servo drives in CNC machines, requiring synchronized position/velocity updates from PLC and motion IC.

IC Role / Device Role / Timing Role: Acts as dual-access register file: PLC writes setpoints to left port; motion IC reads/writes status via right port with collision detection.

Use Value: Collision flags (COLL/COLR) alert firmware to concurrent access conflicts; –40°C to +85°C rating ensures reliability in uncooled enclosures.

Use Scenario: Temporary storage of raw CT/MRI scan lines during reconstruction, where acquisition engine and GPU processor access overlapping memory regions.

IC Role / Device Role / Timing Role: Provides non-blocking memory for pipelined image processing-acquisition fills rows while GPU processes prior rows.

Use Value: 208-pin fpBGA enables compact layout near FPGA; JTAG support simplifies field calibration and diagnostic trace capture.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C1362BV33-166BZXI	3.3V core supply (no 2.5V option); 166MHz max, 256K × 36; 208-pin TQFP (not BGA)	Lacks independent I/O voltage selection and sleep mode; requires board-level level-shifting for mixed-voltage systems	Choose when legacy TQFP footprint compatibility is required and 3.3V-only operation suffices.
AS7C3256A-166BIN	Asynchronous dual-port (not synchronous); 166MHz max, 256K × 36; 100-pin TQFP	No clock-domain synchronization, no JTAG, no pipelined mode-unsuitable for tightly timed FPGA interfaces	Select only for cost-sensitive, non-timing-critical control-plane buffers where clockless operation is acceptable.

Compared with CY7C1362BV33-166BZXI and AS7C3256A-166BIN, the 70T3599S166BF uniquely delivers 2.5V core + flexible per-port I/O voltage, IEEE 1149.1 JTAG, and pipelined/flow-through mode selection-making it optimal for thermally demanding, mixed-voltage, high-reliability embedded designs.

Availability

70T3599S166BF is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for 70T3599S166BF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Integrated Device Technology (IDT), now part of Renesas Electronics, specializes in high-performance timing, memory, and RF solutions for communications, computing, and industrial markets.

The 70T35xx family was designed specifically for deterministic, low-latency dual-port memory applications in real-time systems-emphasizing simultaneous access, voltage flexibility, and industrial-grade reliability.

FAQ

What is the maximum operating frequency of the 70T3599S166BF at industrial temperature?

The 70T3599S166BF is rated for 166MHz operation over the full industrial temperature range (–40°C to +85°C). This corresponds to a 6ns clock cycle time in pipelined mode and guarantees 3.6ns maximum access time. Note that the 200MHz speed grade (S200) is commercial-only and not available in the BF208 package used by the 70T3599S166BF.

Does the 70T3599S166BF support independent voltage selection for each port's I/O interface?

Yes, the 70T3599S166BF supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL = VDD (2.5V) configures the left port for 3.3V signaling (requiring VDDQL = 3.3V), while OPTL = VSS (0V) configures it for 2.5V signaling (VDDQL = 2.5V). The right port is controlled identically by OPTR and VDDQR. This enables seamless interfacing with mixed-voltage FPGAs or processors.

What is the function of the REPEATL and REPEATR pins on the 70T3599S166BF?

REPEATL and REPEATR are asynchronous inputs that reset the internal address counter to the last valid address loaded via ADSL or ADSR, respectively. When asserted (VIH), they cause the counter to re-output that stored address on subsequent clock edges-enabling efficient burst reads/writes without external address generation logic. The repeat address is not preset at power-up and must be initialized via an ADS access.

How does the sleep mode (ZZL/ZZR) affect JTAG functionality on the 70T3599S166BF?

When ZZL or ZZR is asserted (VIH), the 70T3599S166BF enters sleep mode, disabling all dynamic inputs except JTAG signals (TCK, TMS, TDI, TDO, TRST). Static inputs-including PL/FTL/R, OPTL/R, and the ZZ pins themselves-remain active. Boundary scan operations are preserved, but the datasheet recommends avoiding JTAG activity during sleep mode to ensure reliable test vector application.

Are A17L and A17R functional address pins on the 70T3599S166BF?

No, A17L and A17R are no-connect (NC) pins on the 70T3599S166BF, as explicitly stated in the datasheet notes. The device implements a 256K × 36 organization, which requires only 18 address bits (A0–A17), but A17 is unused and tied off internally. Addressing is therefore limited to A0–A16 (131K words) for this variant, consistent with the 70T3599 designation within the 70T3519/99/89 family.

70T3599S166BF Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 208-LFBGA

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Synchronous

Memory Size:: 4.5Mbit

Memory Organization:: 128K x 36

Memory Interface:: Parallel

Clock Frequency:: 166 MHz

Write Cycle Time - Word, Page:: -

Access Time:: 3.6 ns

Voltage - Supply:: 2.4V ~ 2.6V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 208-CABGA (15x15)

70T3599S166BF FAQ

1.How can I place an order for 70T3599S166BF through Aetrix?

Please submit a Request for Quotation (RFQ) for 70T3599S166BF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 70T3599S166BF reliable?

The price and inventory of 70T3599S166BF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70T3599S166BF is usually 5 days.

3.What payment methods are accepted for 70T3599S166BF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70T3599S166BF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 70T3599S166BF?

70T3599S166BF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 70T3599S166BF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 70T3599S166BF?

For technical support, including 70T3599S166BF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70T3599S166BF requirements.

6.How does Aetrix verify that 70T3599S166BF is sourced from the original manufacturer or authorized distributors?

All 70T3599S166BF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 70T3599S166BF meets industry standards.

7.What is the process for return or replacement of 70T3599S166BF?

All 70T3599S166BF units undergo pre-shipment inspection (PSI). If there is an issue with 70T3599S166BF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 70T3599S166BF part is unused and in its original packaging.

Return procedure for 70T3599S166BF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…