Renesas 70V9269L9PRFG

Overview

70V9269L9PRFG from IDT (now part of Renesas) is a high-speed 16K × 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, 10 ns pipelined cycle time at 100 MHz, LVTTL-compatible 3.3 V ±0.3 V supply, and industrial temperature range (–40°C to +85°C). It serves in real-time interprocessor communication and FPGA co-processor buffering.

For engineers reviewing the 70V9269L9PRFG datasheet, 70V9269L9PRFG pinout, 70V9269L9PRFG application, or 70V9269L9PRFG equivalent, this page delivers verified timing modes (flow-through/pipelined), byte-select control, counter-enable/reset functionality, and TQFP-128 package integration details essential for deterministic dual-bus system design.

Technical Context

The 70V9269L9PRFG implements fully synchronous operation on both ports with 4 ns setup and 1 ns hold times for all inputs, using input registers for address, data, and control signals. Its dual chip enables (CE0/CE1 per port) support depth expansion without external logic.

It supports two output modes selected by FT/PIPE pin: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), with self-timed write enabling minimal cycle time. Separate upper-byte (UB) and lower-byte (LB) controls ensure compatibility with multiplexed bus architectures.

Key Specifications

Pinout & Package

70V9269L9PRFG is housed in a 128-pin Thin Quad Flatpack (TQFP) package, body size 14 mm × 20 mm × 1.4 mm, with 32 ground (VSS) and 32 power (VDD) pins distributed across all four sides for robust noise immunity and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AXC and AS7C316000B-10BIN, the 70V9269L9PRFG uniquely combines industrial temperature support, native 3.3 V synchronous operation, configurable pipelined/flow-through latency, and integrated address counter - making it optimal for deterministic, clock-synchronized dual-bus systems.

Availability

70V9269L9PRFG is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and FPGA-based embedded systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 70V9269L9PRFG 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 70V9269L9PRFG belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication and real-time buffering in clock-synchronized systems.

FAQ

What is the maximum operating frequency of the 70V9269L9PRFG in pipelined mode?

The 70V9269L9PRFG supports up to 100 MHz operation in pipelined output mode, corresponding to a 10 ns clock cycle time (tCYC2). This is validated across the full industrial temperature range (–40°C to +85°C) and 3.3 V ±0.3 V supply, with tCD2 ≤ 9 ns ensuring data validity within one clock cycle after the rising edge.

Does the 70V9269L9PRFG support independent byte write control on each port?

Yes, the 70V9269L9PRFG provides separate upper-byte (UB) and lower-byte (LB) select inputs for both left and right ports. When UB = low and LB = high, only the upper 8 bits (I/O8–I/O15) are written; when LB = low and UB = high, only the lower 8 bits (I/O0–I/O7) are updated - enabling precise partial-word writes without read-modify-write sequences.

How does the address counter function in the 70V9269L9PRFG?

The 70V9269L9PRFG includes a dedicated address counter per port, enabled by CNTENL/CNTENR. When ADS = high and CNTEN = low, the counter advances on each rising CLK edge, generating sequential addresses internally. CNTRSTL/CNTRSTR resets the counter to A0. This hardware counter offloads sequential addressing from the host processor in FIFO or circular buffer implementations.

What is the purpose of the FT/PIPE pin on the 70V9269L9PRFG?

The FT/PIPE pin configures the output timing behavior per port: FT/PIPE = VIH selects pipelined mode (1-cycle latency, tCD2 ≤ 9 ns), while FT/PIPE = VIL selects flow-through mode (combinatorial output, tCD1 ≤ 20 ns). Both modes are independently configurable per port, allowing mixed-latency system designs - for example, pipelined for high-throughput data ingestion and flow-through for low-latency control response.

Is the 70V9269L9PRFG pin-compatible with other members of the IDT70V92xx family?

The 70V9269L9PRFG shares the same 128-pin TQFP package and pinout with IDT70V9279 variants (e.g., 70V9279L9PRFG), differing only in memory depth (16K vs. 32K) and A14 pin assignment (NC in 70V9269, functional in 70V9279). This allows drop-in replacement in 16K-configured designs and layout reuse during capacity scaling.