Renesas 70V9269S12PRFGI8

Overview

70V9269S12PRFGI8 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, 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). It serves in real-time inter-processor communication buffers in telecom line cards and packet switching fabric controllers.

For engineers reviewing the 70V9269S12PRFGI8 datasheet, 70V9269S12PRFGI8 pinout, 70V9269S12PRFGI8 application, or 70V9269S12PRFGI8 equivalent, key selection criteria include pipelined vs. flow-through output mode timing, dual chip enable depth expansion capability, counter-enabled burst addressing, separate upper/lower byte controls for bus matching, and low-power standby current (1.32 mW typ.) under CMOS-level inputs.

Technical Context

This device implements fully synchronous dual-port architecture with independent clock, control, and data registers on both left and right ports-enabling 4 ns setup and 1 ns hold times on all inputs. Its internal address counter supports auto-incrementing reads/writes when ADS is deasserted and CNTEN is active.

The FT/PIPE pin selects between flow-through (output valid after one clock) and pipelined (output valid after two clocks, enabling 10 ns cycle time) output modes. Dual chip enables (CE0/CE1 per port) allow seamless depth expansion without external logic, while UBL/LBL pins provide byte-level write masking compatible with multiplexed 16-bit buses.

Key Specifications

Pinout & Package

70V9269S12PRFGI8 is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring 14 mm × 20 mm × 1.4 mm, with 0.4 mm lead pitch and exposed thermal pad (not electrically connected). All VDD and VSS pins require local decoupling per datasheet layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-100AXC and AS7C33256PFSIG, the 70V9269S12PRFGI8 uniquely combines industrial temperature operation, on-chip address counter, and true synchronous dual-port timing - making it the only option for new designs requiring deterministic burst transfers in ruggedized embedded systems.

Availability

70V9269S12PRFGI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and aerospace avionics applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for 70V9269S12PRFGI8 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, and interface solutions for communications and computing markets.

The 70V9269S12PRFGI8 belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic inter-processor communication in real-time embedded systems where clock-domain isolation and burst data efficiency are critical.

FAQ

What is the maximum operating frequency of the 70V9269S12PRFGI8 in pipelined mode?

The 70V9269S12PRFGI8 supports up to 100 MHz operation 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 3.3 V ±0.3 V supply, with all timing parameters guaranteed per datasheet Table 11a for the X12 speed grade.

Does the 70V9269S12PRFGI8 support independent output mode selection per port?

Yes, the 70V9269S12PRFGI8 provides independent output mode control: FT/PIPEL configures the left port and FT/PIPER configures the right port. Each can be set to flow-through (VIL) or pipelined (VIH) mode, enabling asymmetric latency configurations-for example, low-latency control writes on one port and high-throughput streaming reads on the other.

How does the address counter function in the 70V9269S12PRFGI8?

The 70V9269S12PRFGI8 integrates an on-chip 15-bit address counter per port. When CNTEN is asserted low and ADS is high, the counter auto-increments on each clock rise, eliminating external address generation. CNTRST low resets the counter to address 0. This feature is confirmed in Truth Table III and Waveforms 15–18 of the datasheet.

What is the standby power consumption of the 70V9269S12PRFGI8 under full CMOS-level disable?

In full standby (ISB3 condition), where both ports have CE0 and CE1 driven above VDD − 0.2 V and all inputs held at CMOS levels, the 70V9269S12PRFGI8 draws just 1.0 mA typical (1.32 mW at 3.3 V), as specified in Table 9a. This ultra-low quiescent current is critical for battery-backed or energy-constrained industrial systems.

Is the 70V9269S12PRFGI8 pin-compatible with other members of the IDT70V92xx family?

The 70V9269S12PRFGI8 shares the same 128-pin TQFP package and pinout with IDT70V9279 variants, differing only in memory depth (16K vs. 32K) and A14 pin function (NC for 70V9269, used for addressing in 70V9279). Pin compatibility is explicitly confirmed in the datasheet note: "A14X is a NC for IDT70V9269."