Renesas 70V9269L12PRFGI

Overview

70V9269L12PRFGI from IDT (now part of Renesas) is a high-speed 32K 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, 10 ns pipelined cycle time at 100 MHz, LVTTL-compatible 3.3 V ±0.3 V operation, and industrial temperature range (–40°C to +85°C), used in real-time DSP co-processing and FPGA-based communication buffers.

For engineers reviewing the 70V9269L12PRFGI datasheet, 70V9269L12PRFGI pinout, 70V9269L12PRFGI application, or 70V9269L12PRFGI equivalent, this page delivers verified timing parameters, package mapping to 128-pin TQFP, flow-through/pipelined output mode selection, byte-select controls, and dual-chip-enable depth expansion capability - all confirmed for the exact 70V9269L12PRFGI variant.

Technical Context

This device implements fully synchronous dual-port architecture with independent clock, control, and data registers on both ports, supporting 4 ns setup and 1 ns hold times on all inputs. It features separate upper- and lower-byte enables (UB/LB), address strobe (ADS), counter enable/reset, and FT/PIPE pin-controlled output latency mode.

The memory supports two distinct output modes: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), with corresponding cycle times of 25 ns and 15 ns respectively for the 70V9269L12PRFGI speed grade. Dual chip enables (CE0/CE1 per port) allow seamless depth expansion without external logic.

Key Specifications

Pinout & Package

70V9269L12PRFGI is housed in a 128-pin TQFP (Thin Quad Flatpack) package with 0.4 mm pitch, 14 mm × 20 mm footprint, and 1.4 mm height. All VDD pins require local 3.3 V decoupling; all VSS pins must be connected to ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AXC and AS7C33256PFSIG, the 70V9269L12PRFGI provides unique per-port output mode selection, integrated address counter, and industrial temperature qualification - making it optimal for deterministic real-time systems requiring both bandwidth and flexibility.

Availability

70V9269L12PRFGI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and FPGA-accelerated embedded systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for 70V9269L12PRFGI 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.

The 70V9269L12PRFGI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for real-time inter-processor communication, protocol acceleration, and deterministic data buffering in FPGA- and DSP-based systems.

FAQ

What is the maximum operating frequency of the 70V9269L12PRFGI in pipelined mode?

The 70V9269L12PRFGI supports up to 100 MHz operation in pipelined output mode, corresponding to a 15 ns clock cycle time (tCYC2) as specified in the AC Electrical Characteristics table for the X12 speed grade. This timing is guaranteed across the full industrial temperature range (–40°C to +85°C) under VDD = 3.3 V ±0.3 V conditions.

Does the 70V9269L12PRFGI support independent output mode selection for left and right ports?

Yes, the 70V9269L12PRFGI provides separate FT/PIPEL and FT/PIPER pins, enabling independent configuration of flow-through or pipelined output mode on each port. This allows one port to operate with minimal latency while the other uses pipelined throughput - critical for asymmetric data path designs.

What is the function of the ADS pin on the 70V9269L12PRFGI?

The ADS (Address Strobe) pin on the 70V9269L12PRFGI controls whether the external address is latched (ADS = VIL) or the internal address counter value is used (ADS = VIH). When ADS = VIL, the rising edge of CLK loads the address from A0–A14; when ADS = VIH, the counter advances automatically if CNTEN = VIL.

Is A14 connected or unused on the 70V9269L12PRFGI?

A14 is a No Connect (NC) pin on the 70V9269L12PRFGI, as explicitly noted in the datasheet footnote: "A14X is a NC for IDT70V9269." The device implements a 32K × 16-bit organization (A0–A14 = 15 bits), but A14 is not bonded out - effective addressing uses A0–A13 (16K) with internal decoding or counter extension.

How does the dual chip enable scheme work on the 70V9269L12PRFGI?

Each port of the 70V9269L12PRFGI has two chip enables (CE0X and CE1X). The port is selected only when CE0X = VIL and CE1X = VIH. If either CE0X or CE1X is VIH (or both VIH), the port enters standby. This dual-enable structure allows depth expansion using multiple devices without external logic - one device's CE1 drives the next's CE0, etc.