Renesas 70V9269L15PRFI

Overview

70V9269L15PRFI 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, 15 ns pipelined clock-to-data access, 10 ns cycle time at 100 MHz, and industrial-grade operation from –40°C to +85°C - used in real-time DSP co-processing, FPGA interprocessor communication, and packet buffering in telecom line cards.

For engineers reviewing the 70V9269L15PRFI datasheet, 70V9269L15PRFI pinout, 70V9269L15PRFI application, or 70V9269L15PRFI equivalent, key selection criteria include pipelined vs. flow-through output mode configuration via FT/PIPE pin, dual chip enable depth expansion capability, LVTTL-compatible 3.3 V ±0.3 V supply, separate upper/lower byte controls for bus matching, and counter-enable/reset functionality for burst address sequencing.

Technical Context

This device implements fully synchronous dual-port architecture with independent clock, control, and data registers on both left and right ports - supporting 4 ns setup and 1 ns hold timing on all inputs. It features dual internal address counters with ADS-controlled external address loading and CNTEN/CNTRST-triggered increment or reset.

The memory supports two distinct output modes: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), selected per port via dedicated FT/PIPE pins; pipelined mode enables 100 MHz operation with self-timed write and 6.5 ns clock-to-data-out latency. Power management includes four standby current states (ISB1–ISB4) controlled by TTL- or CMOS-level chip enables.

Key Specifications

Pinout & Package

70V9269L15PRFI is housed in a 128-pin Thin Quad Flatpack (TQFP) package with exposed thermal pad (PKG128). All VDD pins require local 3.3 V decoupling; all VSS pins must be connected to ground. Package body dimensions are 14 mm × 20 mm × 1.4 mm.

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-15JIN, the 70V9269L15PRFI delivers unique value through its per-port pipelined/flow-through mode selection, dual chip enables enabling depth expansion without glue logic, and integrated address counter with reset - making it optimal for burst-oriented, low-latency, multi-device memory subsystems.

Availability

70V9269L15PRFI is available at Aetrix Electronics and suitable for industrial motion control, telecom infrastructure, avionics display systems, and FPGA-based prototyping requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V9269L15PRFI 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 70V9269L15PRFI 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 essential.

FAQ

What is the maximum operating frequency of the 70V9269L15PRFI in pipelined mode?

The 70V9269L15PRFI supports up to 100 MHz operation in pipelined output mode, corresponding to a 10 ns clock cycle time (tCYC2 ≤ 15 ns max per datasheet Table 11a). This frequency is achievable under industrial conditions (–40°C to +85°C) with 3.3 V ±0.3 V supply and proper signal integrity layout - verified by AC timing parameters including tCH2 ≥ 4 ns and tCL2 ≥ 4 ns.

Does the 70V9269L15PRFI support independent output modes on left and right ports?

Yes, the 70V9269L15PRFI supports independent output mode selection: FT/PIPEL configures the left port and FT/PIPER configures the right port. Each can be set to pipelined (VIH) or flow-through (VIL) mode, enabling asymmetric timing configurations - for example, pipelined reads on the right port for low-latency access while using flow-through writes on the left port for predictable setup timing.

How does the address counter function in the 70V9269L15PRFI, and what signals control it?

The 70V9269L15PRFI integrates an internal 14-bit address counter per port, controlled by CNTENL/CNTENR (enable) and CNTRSTL/CNTRSTR (reset) signals. When CNTENX = VIL on the rising CLK edge, the counter increments automatically; when CNTRSTX = VIL, it resets to zero. ADSX determines source: ADSX = VIL loads external address, ADSX = VIH uses counter output - enabling seamless burst-mode addressing without external logic.

What is the power consumption of the 70V9269L15PRFI in full standby mode?

In full standby mode (both ports disabled with CMOS-level inputs: CE0X > VDD – 0.2 V and CE1X < 0.2 V), the 70V9269L15PRFI draws 0.4 mA typical (ISB3), equivalent to 1.32 mW at 3.3 V. This ultra-low quiescent current is confirmed in datasheet Table 9a for the "L" speed grade at industrial temperature, making it suitable for always-on buffer applications with strict power budgets.

Is the 70V9269L15PRFI pin-compatible with other members of the IDT70V92xx family?

The 70V9269L15PRFI shares the same 128-pin TQFP package and core pinout with IDT70V9279 variants, but differs in memory depth: 70V9269 is 16K × 16 (A0–A13), whereas 70V9279 is 32K × 16 (A0–A14). A14R and A14L are No Connect on 70V9269 (per datasheet Note 1), so PCBs designed for 70V9269 can accept 70V9279 only if A14 routing is unused or tied off - not drop-in compatible without layout review.