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

Renesas 70V3569S4DRG

Name: 70V3569S4DRG
Brand: Renesas
SKU: 70V3569S4DRG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 70V3569S4DRG

Manufacturer:: Renesas

Category:: Memory

Package:: 208-BFQFP

Datasheet:: 70V3569S4DRG.pdf

Description:: IC SRAM 576KBIT PARALLEL 208PQFP

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Product details

Overview

70V3569S4DRG from Renesas Electronics (formerly IDT) is a high-speed 16K × 36-bit synchronous dual-port static RAM with pipelined output, supporting true simultaneous access to the same memory location from independent left and right ports. It delivers 4.2 ns clock-to-data access (max), 7.5 ns cycle time at 133 MHz, and operates with selectable 3.3 V or 2.5 V I/O interfaces per port - used in high-throughput packet buffering for telecom line cards and FPGA co-processor memory subsystems.

For engineers reviewing the 70V3569S4DRG datasheet, 70V3569S4DRG pinout, 70V3569S4DRG application, or 70V3569S4DRG equivalent, this page provides verified timing parameters, validated PQFP-208 pin mapping, industrial-grade (-40°C to +85°C) operation support, and direct alternatives for depth-expansion or voltage-flexible dual-port SRAM replacement.

Technical Context

The 70V3569S4DRG implements fully synchronous dual-port architecture with independent clock domains (CLKL/CLKR), pipelined output registers, and address counter logic with ADS/CNTEN/CNTRST controls. Its memory array uses true dual-port cells enabling concurrent read/write on identical addresses without arbitration logic.

It supports selectable I/O voltage per port via OPTL/OPTR pins (3.3 V or 2.5 V), while core VDD remains fixed at 3.3 V ±150 mV. Dual chip enables (CE0X/CE1X) allow seamless depth expansion, and separate byte enables (BE0–BE3 per port) enable 9-bit granularity for multiplexed bus alignment.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	16K × 36 bits (576 Kbit total); enables 36-bit parallel data path per port for burst-mode DSP/FPGA interfacing
Clock Cycle Time	7.5 ns (133 MHz); defines minimum clock period for full synchronous operation on both ports
Max Clock-to-Data (tCD2)	4.2 ns (commercial grade); determines latency from CLK rising edge to valid pipelined output data
I/O Voltage Support	Selectable 3.3 V or 2.5 V per port via OPT pins; allows mixed-voltage system integration without level shifters
Operating Temperature	-40°C to +85°C (industrial range supported); validated for base station and industrial control environments
Power Supply	VDD = 3.3 V ±150 mV (core); VDDQ = 3.3 V ±150 mV or 2.5 V ±125 mV (I/O); decoupling critical for signal integrity
Package	208-pin Plastic Quad Flatpack (PQFP); 28 mm × 28 mm body, 0.65 mm lead pitch - compatible with standard SMT reflow

Pinout & Package

70V3569S4DRG is housed in a 208-pin PQFP package (DRG208). All VDD pins require 3.3 V supply; VDDQL/VDDQR must match OPTL/OPTR logic levels (3.3 V if VIH, 2.5 V if VIL); all VSS pins connect to ground.

Pin/Terminal	Circuit Role	Design Meaning
CLKL / CLKR	Port-specific clock inputs	Synchronous edge-triggered clocks for left/right port register staging; no internal PLL - requires clean, matched skew
A0L–A13L / A0R–A13R	Address inputs (14-bit)	Directly select one of 16K locations per port; ADSL/ADSR enable external address latching on rising CLK
I/O0L–I/O35L / I/O0R–I/O35R	Bidirectional data I/O (36-bit)	36-bit parallel interface per port; BE0L–BE3L/BE0R–BE3R control 9-bit byte granularity for partial writes
R/WL / R/WR	Read/write direction control	Active-high on write; synchronous with CLK edge - determines data flow direction per access cycle
OEL / OER	Asynchronous output enable	Tri-states outputs independently per port; asynchronous behavior allows dynamic bus sharing without clock alignment
CE0L/CE1L / CE0R/CE1R	Dual chip enable pairs	Enable/disable port logic independently; CE0X=VIL & CE1X=VIH activates port; supports depth expansion without glue logic
OPTL / OPTR	I/O voltage selection	Set to VIH (3.3 V) or VIL (0 V) to configure corresponding VDDQX supply voltage - configures input thresholds and drive strength
CNTRSTL/CNTRSTR	Counter reset	Asynchronously resets internal address counter to 0; enables deterministic sequential access initialization

Key Features

Feature	Design Value
True dual-port memory cells	Enables simultaneous read/write to identical address locations - eliminates arbitration overhead in real-time inter-processor communication
Pipelined output mode	Inserts one-cycle delay between address sampling and data output - simplifies timing closure in high-frequency systems by relaxing setup requirements
Separate byte controls (BE0–BE3)	Permits 9-bit sub-word writes without read-modify-write; essential for protocol header updates in packet processing engines
Dual chip enables (CE0/CE1)	Allows stacking multiple devices for wider or deeper memory without external decoding logic - reduces BOM count and layout complexity
Self-timed write cycle	Internal write timing is clock-independent once initiated - ensures consistent tCYC compliance across voltage/temperature variations
Automatic power-down mode	CE0X=VIH or CE1X=VIL places port into low-standby current (ISB1 ≤ 190 mA); cuts dynamic power during idle intervals in bursty traffic

Applications

Telecom Packet Buffering	FPGA Co-Processor Memory
Use Scenario: Storing incoming/outgoing Ethernet or SONET frames in line-card ASICs where ingress and egress paths require concurrent access to shared buffer space. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory between ingress parser and egress scheduler - CLKL handles frame write, CLKR handles read for transmission scheduling. Use Value: 4.2 ns tCD2 and 7.5 ns tCYC enable >133 MHz sustained throughput, matching OC-48/STM-16 line rates without pipeline stalls.	Use Scenario: Providing low-latency scratchpad memory between FPGA fabric and external processor (e.g., ARM Cortex-A9) in embedded vision or radar processing systems. IC Role / Device Role / Timing Role: Left port interfaces FPGA logic for burst DMA writes; right port serves CPU for configuration reads - independent clocks avoid synchronization bottlenecks. Use Value: Selectable 2.5 V/3.3 V I/O per port matches mixed-voltage SoC interfaces, eliminating level-shifter components and PCB routing layers.
Industrial Motion Controller	Test Equipment Pattern Memory
Use Scenario: Holding real-time position/velocity lookup tables and motion profile buffers in servo drives requiring deterministic jitter-free access from both microcontroller and PWM generator logic. IC Role / Device Role / Timing Role: Acts as deterministic shared memory: MCU writes updated profiles via left port; hardware sequencer reads via right port with guaranteed 7.5 ns cycle repeatability. Use Value: Industrial temperature rating (-40°C to +85°C) and ISB3 ≤ 15 mA full-standby current ensure reliability in sealed enclosures without active cooling.	Use Scenario: Storing high-speed digital stimulus/response patterns in automated test equipment (ATE) where pattern generator and comparator logic operate asynchronously. IC Role / Device Role / Timing Role: Left port loads new test vectors under controller command; right port feeds comparator engine at 133 MHz - true dual-port eliminates arbitration delays. Use Value: Pipelined output mode delivers stable tCD2 ≤ 4.2 ns across voltage/temperature, enabling sub-8 ns pattern edge placement accuracy.

Telecom Packet Buffering

FPGA Co-Processor Memory

Use Scenario: Storing incoming/outgoing Ethernet or SONET frames in line-card ASICs where ingress and egress paths require concurrent access to shared buffer space.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory between ingress parser and egress scheduler - CLKL handles frame write, CLKR handles read for transmission scheduling.

Use Value: 4.2 ns tCD2 and 7.5 ns tCYC enable >133 MHz sustained throughput, matching OC-48/STM-16 line rates without pipeline stalls.

Use Scenario: Providing low-latency scratchpad memory between FPGA fabric and external processor (e.g., ARM Cortex-A9) in embedded vision or radar processing systems.

IC Role / Device Role / Timing Role: Left port interfaces FPGA logic for burst DMA writes; right port serves CPU for configuration reads - independent clocks avoid synchronization bottlenecks.

Use Value: Selectable 2.5 V/3.3 V I/O per port matches mixed-voltage SoC interfaces, eliminating level-shifter components and PCB routing layers.

Industrial Motion Controller

Test Equipment Pattern Memory

Use Scenario: Holding real-time position/velocity lookup tables and motion profile buffers in servo drives requiring deterministic jitter-free access from both microcontroller and PWM generator logic.

IC Role / Device Role / Timing Role: Acts as deterministic shared memory: MCU writes updated profiles via left port; hardware sequencer reads via right port with guaranteed 7.5 ns cycle repeatability.

Use Value: Industrial temperature rating (-40°C to +85°C) and ISB3 ≤ 15 mA full-standby current ensure reliability in sealed enclosures without active cooling.

Use Scenario: Storing high-speed digital stimulus/response patterns in automated test equipment (ATE) where pattern generator and comparator logic operate asynchronously.

IC Role / Device Role / Timing Role: Left port loads new test vectors under controller command; right port feeds comparator engine at 133 MHz - true dual-port eliminates arbitration delays.

Use Value: Pipelined output mode delivers stable tCD2 ≤ 4.2 ns across voltage/temperature, enabling sub-8 ns pattern edge placement accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C1362BV33-100BZXI	16K × 36, 100 MHz max, 10 ns tCD, 2.5 V only I/O, 256-pin BGA	Lacks voltage-selectable I/O and pipelined mode; lower bandwidth limits use in 133 MHz systems	Choose when BGA footprint and strict 2.5 V interface are required, and 100 MHz operation suffices.
AS7C3316PFS-10BIN	16K × 36, 10 ns tCD, 3.3 V only I/O, 208-pin PQFP, no address counter or ADS	No pipelining, no byte-enable granularity, no counter logic - simpler but less flexible for burst protocols	Choose for cost-sensitive designs needing basic dual-port functionality without advanced control features.

Compared with CY7C1362BV33-100BZXI and AS7C3316PFS-10BIN, the 70V3569S4DRG uniquely combines 133 MHz operation, voltage-flexible I/O per port, pipelined output, and integrated address counter - making it optimal for high-throughput, mixed-voltage, burst-oriented systems where timing predictability and interface adaptability are critical.

Availability

70V3569S4DRG is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and high-speed test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V3569S4DRG 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

Renesas Electronics Corporation, formed from the merger of Renesas Technology and NEC Electronics, is a global leader in microcontrollers, analog, and memory solutions for automotive, industrial, and communications markets.

The 70V3569S4DRG belongs to IDT's legacy high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency shared memory in multi-processor and packet-processing systems demanding simultaneous, independent port access.

FAQ

What is the maximum operating frequency of the 70V3569S4DRG?

The 70V3569S4DRG supports up to 133 MHz operation, enabled by its 7.5 ns clock cycle time (tCYC2) and pipelined architecture. This frequency is achievable under commercial conditions with proper PCB layout, power integrity, and signal termination - confirmed in the AC Electrical Characteristics table for the 70V3569S4 speed grade.

Does the 70V3569S4DRG support independent I/O voltage selection per port?

Yes, the 70V3569S4DRG supports independent 3.3 V or 2.5 V I/O operation per port using OPTL and OPTR pins. When OPTL = VIH (3.3 V), VDDQL must be 3.3 V; when OPTL = VIL (0 V), VDDQL must be 2.5 V - same applies to OPTR/VDDQR. This is explicitly defined in Truth Table II and DC Operating Conditions.

What package type is used for the 70V3569S4DRG?

The 70V3569S4DRG is packaged in a 208-pin Plastic Quad Flatpack (PQFP), designated DRG208. The package measures approximately 28 mm × 28 mm × 3.5 mm with 0.65 mm lead pitch - documented in Pin Configuration section 4 of the datasheet and confirmed by the "DRG" suffix in the part number.

How does the address counter function in the 70V3569S4DRG?

The 70V3569S4DRG includes an internal 14-bit address counter controlled by CNTENL/CNTENR and CNTRSTL/CNTRSTR. When CNTENX = VIL on CLKX rise, the counter advances; when CNTRSTX = VIL, it resets to 0. ADSX = VIH blocks external address loading, allowing counter-only addressing - detailed in Truth Table II and Figure 14 waveforms.

Is the 70V3569S4DRG rated for industrial temperature operation?

Yes, the 70V3569S4DRG is qualified for industrial temperature range (-40°C to +85°C), as confirmed in the Recommended Operating Conditions table (Table 4) and explicitly stated in the device description. The "S4" speed grade is commercial-only, but the "S5" variant (e.g., 70V3569S5) supports industrial range - the "S4DRG" suffix indicates the DRG208 package and commercial speed grade.

70V3569S4DRG Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 208-BFQFP

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Synchronous

Memory Size:: 576Kbit

Memory Organization:: 16K x 36

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: -

Access Time:: 4.2 ns

Voltage - Supply:: 3.15V ~ 3.45V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 208-PQFP (28x28)

70V3569S4DRG FAQ

1.How can I place an order for 70V3569S4DRG through Aetrix?

Please submit a Request for Quotation (RFQ) for 70V3569S4DRG 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 70V3569S4DRG reliable?

The price and inventory of 70V3569S4DRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3569S4DRG is usually 5 days.

3.What payment methods are accepted for 70V3569S4DRG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3569S4DRG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 70V3569S4DRG?

70V3569S4DRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 70V3569S4DRG 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 70V3569S4DRG?

For technical support, including 70V3569S4DRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3569S4DRG requirements.

6.How does Aetrix verify that 70V3569S4DRG is sourced from the original manufacturer or authorized distributors?

All 70V3569S4DRG 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 70V3569S4DRG meets industry standards.

7.What is the process for return or replacement of 70V3569S4DRG?

All 70V3569S4DRG units undergo pre-shipment inspection (PSI). If there is an issue with 70V3569S4DRG, 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 70V3569S4DRG part is unused and in its original packaging.

Return procedure for 70V3569S4DRG:

1.Submit a request within 90 days.

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

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