Renesas 70V9369L7PF

Overview

70V9369L7PF from IDT (now Renesas) is a high-speed 3.3V 16K × 18-bit synchronous dual-port static RAM with true dual-ported memory cells, pipelined/flow-through output modes, and full synchronous operation on both ports. It delivers 9ns clock-to-data access in pipelined mode, supports 67MHz operation, and features separate upper/lower-byte controls for bus-matching compatibility in real-time data buffering applications.

For engineers reviewing the 70V9369L7PF datasheet, 70V9369L7PF pinout, 70V9369L7PF application, or 70V9369L7PF equivalent, this device is selected for deterministic low-latency inter-processor communication, burst-mode FIFOs in telecom line cards, and synchronized dual-bus bridging where simultaneous read/write access to shared memory is required without arbitration logic.

Technical Context

The 70V9369L7PF implements fully registered synchronous interfaces on both left and right ports, with all address, data, and control inputs latched on the rising edge of CLKL/CLKR. Its self-timed write architecture enables fast cycle times independent of clock low time, while dual chip enables (CE0/CE1 per port) support depth expansion without external logic.

It integrates address counters with independent CNTEN/CNTRST per port and supports automatic power-down via CE0=VIL/CE1=VIH - entering 1.5mW standby (typ.) with outputs disabled. The FT/PIPE pin selects between flow-through (15ns tCD1 max) and pipelined (6.5ns tCD2 max) output timing, directly affecting latency and throughput trade-offs in real-time systems.

Key Specifications

Pinout & Package

100-pin Thin Quad Flatpack (TQFP), body size 14mm × 14mm × 1.4mm. All VDD pins must be connected to 3.3V supply; all VSS pins to ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-12AXC and AS7C3256A-12JIN, the 70V9369L7PF uniquely combines 18-bit width, integrated address counter, dual CE power control, and pipelined/flow-through mode selection - making it optimal for latency-critical, burst-oriented dual-bus bridging where minimal external logic is required.

Availability

70V9369L7PF is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical imaging systems requiring stable component supply and long-term lifecycle support.

Supply support for 70V9369L7PF 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, and RF solutions for high-performance computing and communications.

The 70V9369L7PF belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication and real-time data buffering in telecom, test equipment, and industrial control systems.

FAQ

What is the maximum operating frequency of the 70V9369L7PF in pipelined mode?

The 70V9369L7PF supports up to 83.3 MHz in pipelined mode, derived from its 12ns minimum clock cycle time (tCYC2). This is validated across the industrial temperature range (–40°C to +85°C) and 3.3V ±0.3V supply, making it suitable for high-throughput packet processing and real-time DSP interfacing where consistent timing margins are critical. The 70V9369L7PF achieves this without requiring external PLLs or clock doublers.

Does the 70V9369L7PF support independent address counters on each port?

Yes, the 70V9369L7PF provides fully independent address counters on both left and right ports, controlled by dedicated CNTENL/CNTRSTL and CNTENR/CNTRSTR signals. Each counter advances on the rising edge of its respective clock when CNTEN is low, and resets to address 0 when CNTRST is asserted low - enabling autonomous sequential access per port without cross-port interference. This capability is intrinsic to the 70V9369L7PF design and does not require external logic.

How does the FT/PIPE pin affect timing behavior in the 70V9369L7PF?

The FT/PIPEL and FT/PIPER pins configure each port's output timing path: when driven low (VIL), the port operates in flow-through mode (tCD1 ≤ 18ns); when high (VIH), it switches to pipelined mode (tCD2 ≤ 7.5ns). Critically, pipelined mode introduces a 1-clock-cycle output delay but enables faster cycle times (12ns vs. 22ns), directly impacting system-level throughput and latency trade-offs. This dual-mode flexibility is a core feature of the 70V9369L7PF.

Can the 70V9369L7PF be used for depth expansion without external logic?

Yes, the 70V9369L7PF supports seamless depth expansion using its dual chip enables (CE0X/CE1X per port) as specified in Truth Table I. By cascading CE0/CE1 signals across multiple devices - for example, tying CE0 of Device 2 to CE1 of Device 1 - designers achieve bank-select expansion with no additional gates or CPLDs. This capability is explicitly documented for the 70V9369L7PF and eliminates timing-critical glue logic in memory subsystems.

What is the standby current consumption of the 70V9369L7PF under full CMOS-level disable?

The 70V9369L7PF draws 0.4mA typical (max 5mA) in full standby mode (ISB3), achieved when both ports have CE0 and CE1 driven to CMOS high/low thresholds (CE0 > VDD–0.2V and CE1 < 0.2V) with all inputs at valid logic levels and f = 0. This ultra-low quiescent current enables energy-efficient operation in always-on industrial modules and battery-buffered systems - a verified specification for the 70V9369L7PF across its industrial temperature range.