Renesas 70V9269L12PRFI8

Overview

70V9269L12PRFI8 from IDT (now part of Renesas) is a high-speed, 32K × 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. It operates at 10 ns cycle time (100 MHz) in pipelined mode, supports industrial temperature range (–40°C to +85°C), and uses a single 3.3 V ±0.3 V supply. It is used in real-time inter-processor communication systems requiring deterministic latency and concurrent data exchange.

For engineers reviewing the 70V9269L12PRFI8 datasheet, 70V9269L12PRFI8 pinout, 70V9269L12PRFI8 application, or 70V9269L12PRFI8 equivalent, this page delivers verified timing parameters, package mapping, port-level control behavior, byte-select capability, and industrial-grade power/thermal specifications - all confirmed for the exact 70V9269L12PRFI8 variant.

Technical Context

This device implements fully synchronous dual-port operation on both left and right interfaces, with 4 ns setup and 1 ns hold times for all control, address, and data inputs relative to clock. Each port includes independent address strobe (ADS), counter enable (CNTEN), and counter reset (CNTRST) logic for autonomous address generation without external sequencing.

It supports two output modes via FT/PIPE pin: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), with separate upper-byte (UB/UBR) and lower-byte (LB/LBR) controls for multiplexed bus compatibility. The memory array uses LVTTL-compatible I/Os and features dual chip enables (CE0/CE1 per port) for seamless depth expansion.

Key Specifications

Pinout & Package

70V9269L12PRFI8 is housed in a 128-pin Thin Quad Flatpack (TQFP) package with exposed thermal pad (not electrically connected). All VDD pins require local 3.3 V decoupling; all VSS pins must be solidly grounded. Pin 1 is marked by a dot or notch orientation indicator.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1370D-100AXC and AS7C33256A-10JIN, the 70V9269L12PRFI8 uniquely combines industrial temperature operation, integrated address counter, programmable output latency (pipelined/flow-through), and true synchronous dual-port timing - making it irreplaceable in deterministic real-time embedded systems.

Availability

70V9269L12PRFI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, avionics data concentrators, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for 70V9269L12PRFI8 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 interface, and RF solutions for communications and computing markets.

The 70V9269L12PRFI8 belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in mission-critical embedded systems.

FAQ

What is the maximum operating frequency of the 70V9269L12PRFI8 in pipelined mode?

The 70V9269L12PRFI8 achieves a 10 ns clock cycle time in pipelined output mode, corresponding to a maximum operating frequency of 100 MHz. This is guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.3 V ±0.3 V supply, with tCD2 ≤ 9 ns clock-to-data valid and tCH2/tCL2 ≥ 4 ns minimum clock high/low times.

Does the 70V9269L12PRFI8 support independent address counters on both ports?

Yes, the 70V9269L12PRFI8 provides fully independent address counters on left and right ports, each controlled by its own CNTEN and CNTRST signals (CNTENL/CNTRSTL and CNTENR/CNTRSTR). When CNTENX is asserted low, the internal counter advances on every rising CLKX edge - enabling autonomous burst transfers without external address generation.

How does the FT/PIPE pin affect timing behavior of the 70V9269L12PRFI8?

The FT/PIPE pin configures output latency mode per port: when driven high (VIH), it enables pipelined mode (tCD2 ≤ 9 ns, 10 ns cycle); when low (VIL), it selects flow-through mode (tCD1 ≤ 20 ns, 30 ns cycle). Critically, FT/PIPE is treated as a DC signal - it must remain stable during operation and cannot be toggled mid-burst.

Can the 70V9269L12PRFI8 perform simultaneous read and write to the same memory location?

Yes, the 70V9269L12PRFI8 uses true dual-ported memory cells that permit simultaneous read from one port and write to the same address on the other port - a core capability confirmed in the functional block diagram and Truth Table I. This enables lock-free inter-processor communication without arbitration overhead.

What is the standby current consumption of the 70V9269L12PRFI8 under full CMOS-level disable?

In full standby mode (both ports disabled with CE0X > VDD – 0.2 V and CE1X < 0.2 V, all inputs at CMOS levels), the 70V9269L12PRFI8 draws only 0.4 mA typical (ISB3), as specified in Table 9a. This ultra-low quiescent current supports energy-sensitive applications such as fanless industrial controllers and battery-backed avionics modules.