Renesas 70V9269S12PRF8/703

Overview

70V9269S12PRF8/703 from IDT (now Renesas) is a high-speed 16K x 16-bit synchronous dual-port static RAM with true dual-ported memory cells enabling simultaneous read/write access to the same address from left and right ports, 12ns pipelined clock-to-data access (tCD2), 20ns pipelined cycle time (tCYC2), and LVTTL-compatible 3.3V ±0.3V operation - used in real-time DSP inter-processor communication buffers and FPGA co-processor data exchange subsystems.

For engineers reviewing the 70V9269S12PRF8/703 datasheet, 70V9269S12PRF8/703 pinout, 70V9269S12PRF8/703 application, or 70V9269S12PRF8/703 equivalent, key selection considerations include pipelined vs. flow-through output mode configuration via FT/PIPE pin, dual chip-enable depth expansion capability, separate upper/lower byte controls for multiplexed bus compatibility, and industrial-grade temperature support (–40°C to +85°C) confirmed for this speed grade.

Technical Context

This device implements fully synchronous operation on both ports with 4ns setup and 1ns hold timing on all control, address, and data inputs, supported by dedicated address, data, and control registers per port. Its self-timed write architecture enables fast cycle times without external wait-state generation.

The memory supports two distinct output modes: flow-through (FT/PIPE = VIL, tCD1 ≤ 20ns) and pipelined (FT/PIPE = VIH, tCD2 ≤ 9ns), with corresponding clock cycle times of 30ns and 20ns respectively for the S12 speed grade. Address counter functionality - enabled via CNTEN and reset via CNTRST - operates independently of chip enable states and advances on CLK rising edge when CNTEN = VIL.

Key Specifications

Pinout & Package

70V9269S12PRF8/703 is housed in a 128-pin Thin Quad Flatpack (TQFP) package with exposed thermal pad. All VDD pins must be connected to 3.3V supply; all VSS pins require solid ground connection. Pin 1 location is marked by notch or dot per JEDEC standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AXC and IS61WV102416BLL-10MLI, the 70V9269S12PRF8/703 delivers superior determinism via synchronous pipelined operation, integrated address counter for burst transfers, and dual chip enables enabling scalable memory depth - critical for real-time embedded systems requiring guaranteed latency.

Availability

70V9269S12PRF8/703 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and avionics data acquisition requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-grade performance.

Supply support for 70V9269S12PRF8/703 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, computing, and industrial markets.

The 70V9269S12PRF8/703 belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems where concurrent access and precise timing control are mandatory.

FAQ

What is the maximum operating frequency of the 70V9269S12PRF8/703 in pipelined mode?

The 70V9269S12PRF8/703 supports a maximum clock frequency of 50MHz in pipelined output mode, derived from its 20ns maximum clock cycle time (tCYC2). This timing is guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.3V ±0.3V supply, making it suitable for high-throughput real-time data exchange between FPGAs and DSPs without external wait-state insertion.

Does the 70V9269S12PRF8/703 support independent byte enables for 8-bit bus interfacing?

Yes, the 70V9269S12PRF8/703 provides separate upper-byte (UB) and lower-byte (LB) controls on both left and right ports. UBL/LBL and UBR/LBR pins allow selective gating of I/O8–I/O15 and I/O0–I/O7 respectively, enabling direct compatibility with multiplexed 8-bit microcontroller buses and legacy peripheral interfaces without external logic.

How does the address counter function in the 70V9269S12PRF8/703, and what signals control it?

The 70V9269S12PRF8/703 integrates a hardware address counter per port controlled by CNTENL/CNTENR (enable) and CNTRSTL/CNTRSTR (reset) pins. When CNTENX = VIL on the rising edge of CLKX, the internal address increments regardless of CE or OE state. CNTRSTX = VIL resets the counter to address 0. This feature eliminates software overhead in sequential buffer access patterns.

Is the 70V9269S12PRF8/703 pin-compatible with other members of the IDT70V92xx family?

No - the 70V9269S12PRF8/703 is not pin-compatible with higher-density variants like the 70V9279 (32K × 16), as A14 is a No Connect in the 70V9269 but functional in the 70V9279. Pinouts match only within the 70V9269 subfamily (e.g., 70V9269S12P, 70V9269S15P), with identical 128-pin TQFP mapping and signal assignments.

What power-saving modes does the 70V9269S12PRF8/703 support, and how are they activated?

The 70V9269S12PRF8/703 supports three standby modes: ISB1 (both ports TTL-disabled, ≤65mA), ISB2 (one port active, ≤240mA), and ISB3 (full CMOS standby, ≤5mA typ.). ISB3 is activated when both CE0X and CE1X are held >VDD–0.2V and all inputs are at valid CMOS levels - ideal for low-power sleep states in battery-backed industrial controllers.