Renesas 70V9269L15PRFI8

Overview

70V9269L15PRFI8 from IDT (now part of Renesas) is a high-speed, 32K × 16-bit synchronous dual-port SRAM with true dual-ported memory cells enabling simultaneous read/write access to the same address from left and right ports. It operates at 3.3 V ±0.3 V, supports pipelined output mode with 15 ns clock cycle time, and delivers 6.5 ns clock-to-data-out in pipelined mode - ideal for real-time inter-processor communication in telecom line cards and packet buffering systems.

For engineers reviewing the 70V9269L15PRFI8 datasheet, 70V9269L15PRFI8 pinout, 70V9269L15PRFI8 application, or 70V9269L15PRFI8 equivalent, key selection criteria include its industrial-grade temperature range (–40°C to +85°C), dual chip enable architecture for seamless depth expansion, flow-through/pipelined output mode selection via FT/PIPE pin, and LVTTL-compatible 3.3 V interface with full synchronous operation on both ports.

Technical Context

This device implements fully synchronous dual-port architecture with independent clock, control, and data registers on each port - ensuring 4 ns setup and 1 ns hold times for all inputs. Its internal address counter, controlled by CNTEN and CNTRST signals, enables burst-mode sequential addressing without external logic.

The memory supports two distinct output timing modes: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), selected per port via dedicated FT/PIPE pins. Dual chip enables (CE0/CE1) allow depth expansion without glue logic, while separate upper-byte (UB) and lower-byte (LB) controls ensure compatibility with multiplexed 16-bit buses.

Key Specifications

Pinout & Package

70V9269L15PRFI8 is housed in a 128-pin Thin Quad Flatpack (TQFP) package with 0.4 mm pitch, body size 14 mm × 20 mm × 1.4 mm. All VDD pins require local decoupling; all VSS pins must be connected to ground. A14L and A14R are no-connect (NC) pins per datasheet Note 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV18-167BZC and AS7C33256PFS-15TIN, the 70V9269L15PRFI8 uniquely combines industrial temperature support, integrated address counter, and selectable pipelined/flow-through output - making it optimal for new designs requiring robustness, burst efficiency, and reduced external logic count.

Availability

70V9269L15PRFI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for 70V9269L15PRFI8 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, specializes in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The 70V9269L15PRFI8 belongs to IDT's high-speed synchronous dual-port SRAM family, designed specifically for deterministic, low-latency inter-processor communication and real-time buffering in mission-critical embedded systems.

FAQ

What is the maximum operating frequency of the 70V9269L15PRFI8 in pipelined mode?

The 70V9269L15PRFI8 supports a maximum clock frequency of 66.7 MHz in pipelined output mode, corresponding to a 15 ns clock cycle time (tCYC2). This timing is guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.3 V ±0.3 V supply, enabling high-throughput data exchange in network processors and DSP subsystems without wait states.

Does the 70V9269L15PRFI8 support automatic address incrementing?

Yes, the 70V9269L15PRFI8 includes an integrated address counter controllable via CNTEN and CNTRST pins on each port. When CNTEN is asserted low on the rising clock edge, the internal address advances automatically - eliminating the need for external counter logic in burst-mode applications such as FIFO emulation or DMA transfers.

How does the FT/PIPE pin affect timing behavior of the 70V9269L15PRFI8?

The FT/PIPE pin on each port configures output timing mode: VIL selects flow-through (tCD1 ≤ 20 ns), providing immediate data output relative to clock; VIH selects pipelined (tCD2 ≤ 9 ns), introducing one-cycle latency but enabling tighter 15 ns cycle times. Both modes are independently configurable per port, allowing mixed-mode system optimization.

What is the standby power consumption of the 70V9269L15PRFI8?

In full standby mode (both ports disabled with CMOS-level inputs), the 70V9269L15PRFI8 consumes just 1.32 mW typical (0.4 mA at 3.3 V). This ultra-low standby power is achieved via on-chip power-down circuitry activated when CE0 and CE1 are simultaneously deasserted - critical for energy-sensitive telecom and portable medical equipment.

Is the 70V9269L15PRFI8 pin-compatible with other members of the IDT70V92xx family?

Yes, the 70V9269L15PRFI8 shares identical pinout and package (128-pin TQFP) with IDT70V9279 variants and earlier 70V9269 speed grades. Key compatibility notes: A14L/A14R are NC pins across all variants; all control, data, and address signals map identically; voltage and timing specifications differ by speed grade and power variant (S vs L), but mechanical and logical interfaces remain consistent.