Renesas 70V3569S6BF

Overview

70V3569S6BF from Integrated Device Technology is a high-speed 16K × 36-bit synchronous dual-port static RAM with pipelined output, true dual-port architecture enabling simultaneous read/write access to the same memory location, 4.2 ns clock-to-data (max), 7.5 ns cycle time at 133 MHz, and support for independent 3.3 V or 2.5 V I/O voltage per port. It serves as a shared buffer in high-throughput inter-processor communication systems.

For engineers reviewing the 70V3569S6BF datasheet, 70V3569S6BF pinout, 70V3569S6BF application, or 70V3569S6BF equivalent, key selection criteria include pipelined latency tolerance, dual-port depth expansion capability via dual chip enables, industrial temperature support (−40°C to +85°C), and configurable per-port I/O voltage selection using OPTL/OPTR pins.

Technical Context

The 70V3569S6BF implements fully synchronous operation on both ports with edge-triggered registers for address, data, and all control signals-including R/W, CE0/CE1, BE0–BE3, ADS, CNTEN, and CNTRST-ensuring deterministic timing at 133 MHz. Its pipelined output mode introduces one-cycle latency between clock edge and valid data output, while self-timed write logic maintains fast cycle time without external wait-state generation.

Each port features independent power domains: fixed 3.3 V ±150 mV core supply (VDD) and selectable 3.3 V or 2.5 V I/O supply (VDDQL/VDDQR) controlled by OPTL and OPTR pins. The device supports address counter mode with asynchronous reset and enable, allowing burst sequential access without external address sequencing logic.

Key Specifications

Pinout & Package

70V3569S6BF is packaged in a 208-pin Plastic Quad Flatpack (PQFP) with 0.5 mm lead pitch and body size 28 mm × 28 mm × 3.5 mm. 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).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133AXC and AS7C331663A-133BIN, the 70V3569S6BF uniquely delivers per-port I/O voltage selection, hardware address counter with asynchronous reset, and guaranteed pipelined latency-enabling lower-system-complexity implementations in mixed-voltage, high-throughput embedded systems.

Availability

70V3569S6BF is available at Aetrix Electronics and suitable for telecom infrastructure, real-time DSP subsystems, and industrial control gateways requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 70V3569S6BF 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, is a fabless semiconductor company specializing in high-performance timing, memory interface, and RF solutions for communications and computing markets.

The 70V3569S6BF belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in telecom, defense, and industrial real-time systems.

FAQ

What is the maximum operating frequency and corresponding cycle time for the 70V3569S6BF?

The 70V3569S6BF supports a maximum operating frequency of 133 MHz, corresponding to a minimum clock cycle time (tCYC2) of 7.5 ns in pipelined mode. This specification applies across the commercial temperature range (0°C to +70°C) and is validated under VDD = 3.3 V ±150 mV. The device achieves this performance with 1.8 ns address setup and 0.7 ns hold times, enabling direct interface with high-speed FPGAs and DSPs without additional timing margining.

Does the 70V3569S6BF support independent I/O voltage selection on each port, and how is it configured?

Yes, the 70V3569S6BF supports independent 3.3 V or 2.5 V I/O voltage per port. Configuration is achieved via the OPTL and OPTR pins: setting OPTL to VIH (3.3 V) selects 3.3 V I/O for the left port and requires VDDQL = 3.3 V; setting OPTL to VIL (0 V) selects 2.5 V I/O and requires VDDQL = 2.5 V. The same logic applies independently to OPTR and VDDQR. This eliminates external level shifters in mixed-voltage architectures.

How does the address counter function in the 70V3569S6BF, and what signals control it?

The 70V3569S6BF includes an internal address counter per port, controlled by CNTENL/CNTENR (enable) and CNTRSTL/CNTRSTR (asynchronous reset). When ADS = VIH and CNTEN = VIL, the counter advances on each rising CLK edge, generating sequential addresses without external logic. CNTRST immediately resets the counter to address 0. This feature enables efficient burst transfers in applications like packet buffering or FFT coefficient streaming, reducing host CPU overhead.

What are the power management modes supported by the 70V3569S6BF, and what is the lowest standby current?

The 70V3569S6BF offers four standby modes: ISB1 (both ports TTL-level disabled), ISB2 (one port active), ISB3 (full CMOS-level standby), and ISB4 (one port CMOS-level standby). The lowest standby current is ISB3, rated at 6 mA typical (15 mA max) across the commercial temperature range. This mode activates when both CE0 and CE1 are held above VDDQ − 0.2 V and all inputs are at valid CMOS logic levels-ideal for energy-sensitive always-on systems.

Is the 70V3569S6BF available in multiple packages, and which one corresponds to the -6BF suffix?

Yes, the 70V3569S6BF is offered in three packages: 208-pin PQFP (DRG208), 208-ball fpBGA (BF208), and 256-pin BGA (BC256). The "-6BF" suffix explicitly denotes the 208-ball fine-pitch Ball Grid Array (fpBGA) package, with 1.0 mm ball pitch and 17 mm × 17 mm body size. This package provides superior thermal and electrical performance over PQFP for high-density, high-speed PCB layouts.