Renesas 70V9269S12PRFGI

Overview

70V9269S12PRFGI 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 3.3V ±0.3V, supports pipelined output mode with 10 ns cycle time (100 MHz), and features separate upper/lower byte controls for bus-matching compatibility in industrial networking and real-time DSP systems.

For engineers reviewing the 70V9269S12PRFGI datasheet, 70V9269S12PRFGI pinout, 70V9269S12PRFGI application, or 70V9269S12PRFGI equivalent, this page delivers verified timing parameters, industrial-grade temperature support (–40°C to +85°C), flow-through/pipelined output mode selection, counter-enable/reset functionality, and TQFP-128 package layout - all critical for deterministic latency inter-processor communication in telecom line cards and FPGA co-processor buffers.

Technical Context

This device implements fully synchronous operation on both ports with 4 ns setup and 1 ns hold times for all control, address, and data inputs. Its dual-port architecture includes independent clock, chip enable, read/write, and output enable signals per port, plus dedicated address strobe (ADS), counter enable (CNTEN), and counter reset (CNTRST) logic for burst-mode address generation.

The 70V9269S12PRFGI supports two distinct output modes: flow-through (tCD1 ≤ 20 ns max) and pipelined (tCD2 ≤ 9 ns max), selected via the FT/PIPE pin. In pipelined mode, it achieves 10 ns cycle time and 6.5 ns clock-to-data-out, while maintaining full port-to-port synchronization with tCCS ≤ 15 ns and tCWDD ≤ 35 ns for write-to-read forwarding across ports.

Key Specifications

Pinout & Package

70V9269S12PRFGI is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring 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 CY7C1370D-133AXC and AS7C33256P-12JIN, the 70V9269S12PRFGI uniquely balances 100 MHz pipelined performance, industrial temperature resilience, and integrated flow-through/pipelined mode switching - making it optimal for new designs demanding deterministic latency and thermal robustness without added termination or timing margin overhead.

Availability

70V9269S12PRFGI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, FPGA co-processing, and real-time DSP applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature qualification.

Supply support for 70V9269S12PRFGI 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 70V9269S12PRFGI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in telecom, test equipment, and industrial automation systems requiring concurrent memory access with sub-20 ns timing guarantees.

FAQ

What is the maximum operating frequency of the 70V9269S12PRFGI in pipelined mode?

The 70V9269S12PRFGI supports a 100 MHz maximum operating frequency 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 3.3V ±0.3V supply, with tCD2 ≤ 9 ns clock-to-data valid delay ensuring timing closure in high-speed synchronous designs.

Does the 70V9269S12PRFGI support independent byte enables for 8-bit data transfers?

Yes, the 70V9269S12PRFGI provides dedicated upper-byte (UB) and lower-byte (LB) select signals on both left and right ports (UBL/LBL and UBR/LBR). These are single-buffered regardless of FT/PIPE state and enable true 8-bit granularity writes and reads - critical for interfacing with 8-bit microcontrollers or legacy peripherals without data masking logic.

How does the address counter function on the 70V9269S12PRFGI, and what triggers increment?

The 70V9269S12PRFGI address counter advances on the rising edge of CLK when CNTEN = VIL, independent of CE0/CE1, UB/LB, or OE states. It resets to address 0 upon assertion of CNTRST. The counter operates only when ADS = VIH; when ADS = VIL, external addresses are latched instead - enabling hybrid burst/random access within a single transfer sequence.

What is the power consumption of the 70V9269S12PRFGI in full standby mode?

In full standby mode - defined as both ports disabled (CE0X > VDD − 0.2V and CE1X < 0.2V) with CMOS-level inputs held static - the 70V9269S12PRFGI draws 1.0 mA typical (5 mA max) at TA = 25°C. This ultra-low quiescent current supports energy-efficient operation in battery-backed or thermally constrained industrial systems.

Is the 70V9269S12PRFGI pin-compatible with other members of the IDT70V92xx family?

The 70V9269S12PRFGI shares the same 128-pin TQFP package and core pinout with IDT70V9279 variants, but A14L and A14R are NC pins specific to the 70V9269 (per datasheet Note 1). While functional compatibility exists across speed grades (X6/X7/X9/X12), direct PCB replacement requires verification of timing margins, especially for tCYC2 and tCD2 parameters in pipelined mode.