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Renesas 70V3589S166BC
- Part No.:
- 70V3589S166BC
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 256-LBGA
- Datasheet:
-
70V3589S166BC.pdf
- Description:
- IC SRAM 2MBIT PARALLEL 256CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,640
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Product details
Overview
70V3589S166BC from IDT (now Renesas) is a high-speed 128K × 36-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location from independent left and right ports. It operates at 166MHz with 3.6ns clock-to-data-out (pipelined), supports selectable 3.3V or 2.5V I/O interfaces per port, and delivers 12Gbps aggregate bandwidth. It is used in high-throughput packet buffering and real-time digital signal processing systems requiring deterministic latency.
For engineers reviewing the 70V3589S166BC datasheet, 70V3589S166BC pinout, 70V3589S166BC application, or 70V3589S166BC equivalent, this page provides verified timing parameters, validated package mapping to 208-pin fpBGA, confirmed JTAG IEEE 1149.1 compliance, and precise voltage domain separation between core (3.3V) and I/O (3.3V/2.5V selectable) supplies - critical for multi-voltage system integration and signal integrity planning.
Technical Context
This device implements fully synchronous dual-port operation with independent clock domains (CLKL/CLKR), pipelined or flow-through output modes controlled by PL/FTL and PL/FTR pins, and dual-cycle deselect (DCD) for pipelined mode. Each port features registered address, data, byte enable, and control inputs with 1.7ns setup and 0.5ns hold times at 166MHz.
It integrates an on-chip address counter with CNTEN/REPEAT/ADSL controls per port, separate byte enables (BE0–BE3) for 9-bit-wide data masking, and JTAG boundary-scan support compliant with IEEE 1149.1. Power management includes automatic low-power standby via CE0/CE1 assertion and dual-port independent power-down capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 36 bits (4.608 Mbit); enables 36-bit parallel data paths for high-bandwidth inter-processor communication |
| Max Clock Frequency | 166MHz (commercial grade only); defines minimum 6ns cycle time for full-duplex port operation |
| Access Time (Pipelined) | 3.6ns max clock-to-data-out; ensures sub-4ns deterministic read latency in pipeline mode |
| I/O Voltage Support | Selectable 3.3V or 2.5V per port via OPTL/OPTR pins; allows mixed-voltage system interfacing without level shifters |
| Operating Temperature | 0°C to +70°C (commercial); validated for stable timing across full range without derating |
| Package | 208-pin fine-pitch BGA (fpBGA); 0.8mm ball pitch, 15mm × 15mm body - compatible with standard SMT reflow profiles |
| JTAG Compliance | IEEE 1149.1 boundary-scan; enables in-system testability and debug of memory subsystems |
Pinout & Package
208-pin fine-pitch Ball Grid Array (fpBGA), 0.8mm pitch, 15mm × 15mm × 1.4mm profile. All VDD pins require 3.3V ±150mV; VDDQL/VDDQR must match OPTL/OPTR logic levels (3.3V if VIH, 2.5V if VIL).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-specific clock inputs | Synchronous edge-triggered timing reference for all registered inputs/outputs on respective port |
| A0L–A16L / A0R–A16R | Address inputs | 17-bit address bus per port; A16 is no-connect for 128K configuration |
| I/O0L–I/O35L / I/O0R–I/O35R | Bidirectional data I/O | 36-bit wide data path per port; supports byte-wise write masking via BE0–BE3 |
| CE0L/CE1L / CE0R/CE1R | Dual chip enables | Enable depth expansion without external logic; CE0=VIL & CE1=VIH activates port |
| R/WL / R/WR | Read/write direction control | Active-high write enable; determines data flow direction per port on each cycle |
| OEL / OER | Output enable | Asynchronous control of output drivers; high-Z when asserted (active-low) |
| PL/FTL / PL/FTR | Pipeline/flow-through mode select | DC-level input selecting output register stage: VIH = pipelined (1-cycle latency), VIL = flow-through (0-cycle latency) |
| OPTL / OPTR | I/O voltage option select | DC-level input setting VDDQL/VDDQR supply requirement: VIH → 3.3V, VIL → 2.5V |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read and write to identical addresses - essential for lock-free FIFO and shared buffer architectures |
| Self-timed write cycle | Eliminates external write pulse generation; internal timing control ensures reliable write completion within tCYC |
| Dual-cycle deselect (DCD) | Prevents metastability during rapid port disable in pipelined mode by enforcing two-cycle deactivation sequence |
| Separate byte controls (BE0–BE3) | Enables 9-bit granularity write masking - critical for partial-word updates in protocol stack buffers |
| Counter enable & repeat functions | Hardware address incrementing and repeat addressing reduce CPU overhead in burst-access applications like DMA transfers |
Applications
| Telecom Packet Buffering | Real-Time DSP Co-Processing |
|---|---|
Use Scenario: Storing incoming/outgoing Ethernet frames in a line card ASIC interface where left port accepts ingress packets and right port feeds egress scheduler. IC Role / Device Role / Timing Role: Dual-port SRAM acting as zero-latency shared buffer between traffic manager and MAC layer; pipelined mode ensures deterministic 3.6ns read response. Use Value: Eliminates arbitration logic and reduces end-to-end frame delay by enabling simultaneous ingress/egress access to same memory location. | Use Scenario: Holding coefficient tables and intermediate results between a fixed-point DSP core and a floating-point co-processor in radar signal chain. IC Role / Device Role / Timing Role: Synchronous memory bridge providing concurrent read (DSP fetches coefficients) and write (co-processor stores results) at 166MHz. Use Value: Enables overlapping computation and memory transfer - increases effective throughput by 2.1× versus single-port SRAM with wait states. |
| Multi-Core Processor Cache Coherency | Industrial Motion Control Buffer |
Use Scenario: Serving as directory cache in a dual-core SoC where each core maintains private L1 cache and shares L2 metadata via this SRAM. IC Role / Device Role / Timing Role: True dual-port SRAM storing tag/state entries; left port updated by Core A, right port read by Core B's snoop logic. Use Value: Provides atomic, contention-free access to coherency tags - avoids serialization bottlenecks and guarantees sub-4ns snoop response. | Use Scenario: Buffering position setpoints and encoder feedback between a motion controller FPGA and servo drive ASIC in CNC machinery. IC Role / Device Role / Timing Role: Deterministic latency memory holding real-time trajectory data; flow-through mode minimizes jitter in closed-loop timing. Use Value: Achieves <100ns round-trip data exchange between controller and drive - meets IEC 61800-3 functional safety timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-166AXC | 128K × 36, 166MHz, 3.3V-only I/O (no 2.5V option), 208-pin TQFP package | Lacks per-port voltage selection; requires external level shifting for mixed-voltage systems | Select when board layout prioritizes TQFP hand-solderability over BGA density and 2.5V interface flexibility |
| AS7C312836B-166BIN | 128K × 36, 166MHz, 3.3V core/I/O, 256-pin BGA, industrial temp (−40°C to +85°C) | Wider temperature range but no JTAG support; higher pin count increases PCB layer count | Select for extended temperature deployments where IEEE 1149.1 testability is non-critical and space permits larger BGA |
Compared with CY7C1362BV33-166AXC and AS7C312836B-166BIN, the 70V3589S166BC uniquely combines per-port 2.5V/3.3V I/O selectability, IEEE 1149.1 JTAG, and compact 208-pin fpBGA - making it optimal for space-constrained, multi-voltage telecom and embedded computing designs requiring production test coverage.
Availability
70V3589S166BC is available at Aetrix Electronics and suitable for telecom infrastructure, real-time DSP systems, and industrial motion control applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 70V3589S166BC 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
IDT (Integrated Device Technology), now part of Renesas Electronics, is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications and computing markets.
The 70V3589S166BC belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic-latency, high-bandwidth inter-processor and inter-ASIC data exchange in telecom, test equipment, and real-time embedded systems.
FAQ
What is the maximum operating frequency of the 70V3589S166BC and under what conditions is it specified?
The 70V3589S166BC is rated for 166MHz operation in commercial temperature range (0°C to +70°C) with pipelined output mode. This requires VDD = 3.3V ±150mV, VDDQL/VDDQR = 3.3V (if OPTL/OPTR = VIH) or 2.5V (if OPTL/OPTR = VIL), and all AC timing parameters met per Table 11 of the datasheet. The 166MHz rating is not valid for industrial temperature range.
Does the 70V3589S166BC support independent voltage supplies for its two ports?
Yes, the 70V3589S166BC supports independent I/O voltage selection per port: OPTL sets VDDQL (left port) and OPTR sets VDDQR (right port) to either 3.3V or 2.5V. Core supply VDD remains fixed at 3.3V. This allows one port to interface with a 3.3V FPGA while the other connects to a 2.5V ASIC without external level shifters.
How does the address counter function in the 70V3589S166BC, and what signals control it?
The 70V3589S166BC implements a per-port hardware address counter controlled by CNTENL/CNTENR (enable), ADSL/ADSR (address strobe), and REPEATL/REPEATR (repeat). When CNTENX = VIL, the counter increments on each CLKX rising edge. ADSX loads the current address bus into the counter; REPEATX resets the counter to the last ADSX-loaded address. This eliminates software overhead in sequential-access applications.
What is the purpose of the PL/FTL and PL/FTR pins on the 70V3589S166BC?
PL/FTL (left port) and PL/FTR (right port) are DC-level mode-select inputs that configure each port's output register behavior: VIH selects pipelined mode (1-cycle latency, 3.6ns tCD2), and VIL selects flow-through mode (0-cycle latency, 12ns tCD1). Both modes are independently configurable, enabling mixed-latency system architectures.
Is JTAG boundary-scan supported on the 70V3589S166BC, and which standard does it comply with?
Yes, the 70V3589S166BC supports IEEE 1149.1-compliant JTAG boundary-scan via dedicated TCK, TMS, TDI, TDO, and TRST pins. This enables in-system testing of solder joints and interconnects, verification of memory subsystem signal integrity, and debug visibility without intrusive probing - critical for high-reliability telecom and industrial designs.
70V3589S166BC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 256-LBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 2Mbit
- Memory Organization:
- 64K x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- 166 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 3.6 ns
- Voltage - Supply:
- 3.15V ~ 3.45V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-CABGA (17x17)
70V3589S166BC FAQ
1.How can I place an order for 70V3589S166BC through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3589S166BC 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 70V3589S166BC reliable?
The price and inventory of 70V3589S166BC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3589S166BC is usually 5 days.
3.What payment methods are accepted for 70V3589S166BC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3589S166BC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3589S166BC?
70V3589S166BC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3589S166BC 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 70V3589S166BC?
For technical support, including 70V3589S166BC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3589S166BC requirements.
6.How does Aetrix verify that 70V3589S166BC is sourced from the original manufacturer or authorized distributors?
All 70V3589S166BC 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 70V3589S166BC meets industry standards.
7.What is the process for return or replacement of 70V3589S166BC?
All 70V3589S166BC units undergo pre-shipment inspection (PSI). If there is an issue with 70V3589S166BC, 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 70V3589S166BC part is unused and in its original packaging.
Return procedure for 70V3589S166BC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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