Renesas 70V9269S12PRFI8

Overview

70V9269S12PRFI8 from IDT (now Renesas) is a high-speed 16K × 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, 12ns pipelined clock-to-data access, 10ns cycle time at 100MHz, and industrial-grade operation from –40°C to +85°C - used in real-time DSP co-processing, network packet buffering, and FPGA-based protocol bridging.

For engineers reviewing the 70V9269S12PRFI8 datasheet, 70V9269S12PRFI8 pinout, 70V9269S12PRFI8 application, or 70V9269S12PRFI8 equivalent, this page delivers verified timing parameters, validated pin functions, confirmed industrial temperature support, and precise package mapping for PCB layout, signal integrity planning, and dual-clock domain synchronization design.

Technical Context

This device implements fully synchronous dual-port architecture with independent clock inputs (CLKL/CLKR), separate address/data/control registers per port, and self-timed write logic enabling minimal setup/hold times (4ns setup, 1ns hold). It supports both flow-through (tCD1 ≤ 20ns) and pipelined (tCD2 ≤ 9ns) output modes via FT/PIPE pin control.

The memory integrates on-chip address counters with ADS, CNTEN, and CNTRST signals for burst-mode sequential addressing, plus dual chip enables (CE0/CE1 per port) for seamless depth expansion without external logic. All I/Os are LVTTL-compatible with single 3.3V ±0.3V supply and byte-level controls (UBL/LBL, UBR/LBR) for multiplexed bus interfacing.

Key Specifications

Pinout & Package

70V9269S12PRFI8 is housed in a 128-pin Thin Quad Flatpack (TQFP) with 0.4mm pitch, body size 14mm × 20mm × 1.4mm. All VDD pins require local decoupling; all VSS pins must be connected to ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1370D-133BAXI and AS7C316000B-12JIN, the 70V9269S12PRFI8 uniquely combines industrial temperature support, integrated address counter, dual chip enables, and 128-pin TQFP packaging - making it optimal for field-deployed embedded systems requiring robustness and layout compatibility.

Availability

70V9269S12PRFI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and aerospace avionics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 70V9269S12PRFI8 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, designs high-performance timing, memory, and interface solutions for demanding communications and computing applications.

The 70V9269S12PRFI8 belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered specifically for real-time systems requiring deterministic latency, concurrent multi-processor access, and industrial-grade reliability.

FAQ

What is the maximum operating frequency of the 70V9269S12PRFI8 in pipelined mode?

The 70V9269S12PRFI8 supports 100MHz operation in pipelined output mode, corresponding to a 12ns clock cycle time (tCYC2). This is validated across the full industrial temperature range (–40°C to +85°C) and 3.3V ±0.3V supply, with tCD2 ≤ 9ns clock-to-data valid timing ensuring deterministic performance in high-speed data pipelines.

Does the 70V9269S12PRFI8 support true simultaneous read/write to the same memory location?

Yes, the 70V9269S12PRFI8 uses true dual-ported memory cells that allow independent, concurrent read and write operations to the exact same address - one port reading while the other writes - without contention or arbitration delay. This capability is fundamental to its use in lock-free inter-processor communication and real-time buffering.

What is the function of the ADS pin on the 70V9269S12PRFI8?

The ADS (Address Strobe Enable) pin on the 70V9269S12PRFI8 controls whether the external address inputs (A0X–A14X) or the internal address counter output is latched on the rising edge of CLKX. When ADSX = VIL, the external address is loaded; when ADSX = VIH, the internal counter value is used - enabling seamless transition between random and burst addressing modes.

Can the 70V9269S12PRFI8 operate with only one port enabled?

Yes, the 70V9269S12PRFI8 supports single-port operation: either left or right port can be fully active while the other is placed in low-power standby using CE0X/CE1X control. In this configuration, ISB2 (standby current with one port active) is 130mA typ. at 100MHz, maintaining full functionality on the enabled port including pipelined timing and address counter operation.

Is the 70V9269S12PRFI8 pin-compatible with other members of the IDT70V92xx family?

The 70V9269S12PRFI8 shares identical pinout and package (128-pin TQFP) with IDT70V9279 variants, differing only in memory depth (16K vs. 32K) and A14 pin assignment (NC for 70V9269, functional for 70V9279). This allows direct PCB reuse when migrating between densities, provided address decoding accounts for the missing A14 bit in 70V9269S12PRFI8.