Renesas 70V9269S12PRFI

Overview

70V9269S12PRFI from IDT (now part of Renesas) is a high-speed 32K x 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, LVTTL-compatible 3.3V operation, and industrial temperature range (–40°C to +85°C). It serves in real-time inter-processor communication, FPGA co-processor buffering, and video frame store applications.

For engineers reviewing the 70V9269S12PRFI datasheet, 70V9269S12PRFI pinout, 70V9269S12PRFI application, or 70V9269S12PRFI equivalent, key selection criteria include pipelined vs. flow-through output mode selection via FT/PIPE pin, dual chip-enable depth expansion capability, separate upper/lower byte controls for bus matching, counter enable/reset functionality, and low-power standby current of 1.32mW (typ.) in full CMOS-level standby.

Technical Context

This device implements fully synchronous dual-port architecture with registered address, data, and control inputs-requiring only 4ns setup and 1ns hold time relative to CLK. Both ports support independent pipelined or flow-through output modes controlled by dedicated FT/PIPE pins per port, enabling deterministic timing across mixed-read/write workloads.

The memory integrates on-chip address counters with asynchronous reset (CNTRST) and enable (CNTEN), allowing burst sequential access without external address generation. Dual CE0/CE1 enables permit seamless depth expansion without glue logic, while separate UBL/UBR and LBL/LBR signals support multiplexed 16-bit bus interfacing with byte-level granularity.

Key Specifications

Pinout & Package

70V9269S12PRFI is housed in a 128-pin Thin Quad Flatpack (TQFP) package with exposed pad thermal enhancement. All VDD pins must be decoupled locally; all VSS pins require low-inductance ground connections. Pin 1 is marked by a corner notch or dot per JEDEC MO-153.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AXC and AS7C33256P-12JCIN, the 70V9269S12PRFI uniquely combines industrial temperature rating, per-port output mode control, hardware address counter, and 1.32mW standby power - making it optimal for deterministic real-time embedded systems where thermal resilience and power efficiency are non-negotiable.

Availability

70V9269S12PRFI is available at Aetrix Electronics and suitable for real-time inter-processor communication, FPGA co-processor buffering, and industrial motion control applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 70V9269S12PRFI 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, computing, and industrial markets.

The 70V9269S12PRFI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency shared-memory architectures in real-time embedded systems where concurrent access and thermal reliability are critical.

FAQ

What is the maximum operating frequency of the 70V9269S12PRFI in pipelined mode?

The 70V9269S12PRFI supports up to 100MHz operation in pipelined output mode, corresponding to a 12ns maximum clock cycle time (tCYC2) over the full industrial temperature range (–40°C to +85°C) and 3.3V ±0.3V supply. This timing is guaranteed per AC Electrical Characteristics Table 11b and applies independently to left and right ports when FT/PIPE = VIH.

Does the 70V9269S12PRFI support simultaneous read and write to the same memory location?

Yes, the 70V9269S12PRFI uses true dual-ported memory cells that allow simultaneous read from one port and write to the same address on the other port - a core architectural feature confirmed in the Functional Block Diagram and Description sections. This eliminates arbitration delays and enables lock-free inter-processor data exchange.

How does the address counter function on the 70V9269S12PRFI?

The 70V9269S12PRFI integrates independent address counters on each port. When CNTENL = VIL (left) or CNTENR = VIL (right), the counter advances on every rising CLK edge - generating sequential addresses without external logic. CNTRSTL/CNTRSTR = VIL asynchronously resets the counter to address 0, enabling repeatable burst transfers.

What is the standby power consumption of the 70V9269S12PRFI?

The 70V9269S12PRFI draws 1.32mW (typ.) in full standby mode (ISB3), defined as both ports disabled with CMOS-level inputs (CE0/CE1 > VDD – 0.2V) and no signal transitions (f = 0). This ultra-low value is specified in DC Electrical Characteristics Table 09a and validated across the industrial temperature range.

Is the 70V9269S12PRFI pin-compatible with other members of the IDT70V92xx family?

No - the 70V9269S12PRFI is not pin-compatible with IDT70V9279 variants. Per Note 1 in the Pin Configuration diagram, A14R and A14L are No Connect (NC) on the 70V9269, whereas they are functional address lines on the 70V9279. This difference affects PCB layout and requires distinct footprint design.