Renesas 70V9199L9PFGI

Overview

70V9199L9PFGI from Renesas Electronics (formerly IDT) is a high-speed, synchronous, pipelined dual-port static RAM with true dual-ported 128K × 9-bit organization, 3.3V single-supply operation, 9 ns clock-to-data access in pipelined mode, and industrial temperature range (–40°C to +85°C). It enables simultaneous read/write access from independent left and right ports in real-time digital signal processing systems.

For engineers reviewing the 70V9199L9PFGI datasheet, 70V9199L9PFGI pinout, 70V9199L9PFGI application, or 70V9199L9PFGI equivalent, key selection criteria include pipelined vs. flow-through output mode configuration, dual chip enable depth expansion capability, address counter support for burst transfers, LVTTL-compatible timing margins, and industrial-grade power-down current performance.

Technical Context

The 70V9199L9PFGI implements fully synchronous dual-port architecture with registered address, data, and control inputs on both ports-requiring only 4 ns setup and 1 ns hold relative to CLK. Its self-timed write cycle enables fast 15 ns minimum cycle time in pipelined mode at 66 MHz operation.

Each port supports independent flow-through or pipelined output mode via dedicated FT/PIPE pins, and includes address strobe (ADS), counter enable (CNTEN), and counter reset (CNTRST) functions for burst-mode memory addressing. Dual CE0/CE1 enables per port allow seamless depth expansion without external logic.

Key Specifications

Pinout & Package

70V9199L9PFGI is housed in a 100-pin Thin Quad Flatpack (TQFP, package code PNG100) with exposed thermal pad not electrically connected. All VDD pins must be decoupled to local 3.3V supply; all VSS pins tied to ground. Pin 1 located at top-left corner (notch-marked side).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AXC and AS7C3128A-15JCIN, the 70V9199L9PFGI uniquely combines pipelined 9 ns access, integrated address counter, and dual CE-based depth expansion - making it optimal for high-clock-rate, burst-oriented embedded systems requiring deterministic latency and minimal controller overhead.

Availability

70V9199L9PFGI is available at Aetrix Electronics and suitable for telecom packet buffering, DSP co-processor memory, FPGA-based motor control, and industrial PLC data exchange requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V9199L9PFGI 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

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT applications.

The 70V9199L9PFGI belongs to Renesas' legacy IDT synchronous dual-port SRAM product line, engineered specifically for high-performance, low-latency inter-processor communication and real-time data buffering in industrial and telecom systems.

FAQ

What is the maximum operating frequency of the 70V9199L9PFGI in pipelined output mode?

The 70V9199L9PFGI supports up to 66 MHz operation in pipelined output mode, derived from its 15 ns minimum clock cycle time (tCYC2). This timing is guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.3 V ± 0.3 V supply, making the 70V9199L9PFGI suitable for high-speed DSP and packet-processing applications where deterministic latency is critical.

Does the 70V9199L9PFGI support independent output mode selection for left and right ports?

Yes, the 70V9199L9PFGI supports independent output mode selection: FT/PIPEL controls the left port and FT/PIPER controls the right port. Each can be configured for pipelined (VIH) or flow-through (VIL) operation, allowing mixed-mode use-for example, pipelined mode on the DSP port for throughput and flow-through on the host port for low-latency register access-without hardware modification.

How does the address counter function work on the 70V9199L9PFGI?

The 70V9199L9PFGI's address counter advances on the rising edge of CLK when CNTENX is low, regardless of CE or OE states. ADSX low loads an external address; CNTRSTX low resets the counter to address 0. This autonomous counter reduces host processor overhead in burst transfers-critical in DMA-driven applications like video frame buffering-while maintaining full compatibility with standard address decoding logic.

What power-saving features does the 70V9199L9PFGI offer in industrial temperature operation?

The 70V9199L9PFGI delivers 1.5 mW typical standby power (ISB3) under full CMOS-level disable conditions at –40°C to +85°C. Per-port power-down is achieved by driving CE0X = VIH or CE1X = VIL, reducing active current to <2 mA. These features enable energy-efficient operation in fanless industrial controllers and remote sensor gateways where thermal management and battery life are constrained.

Can multiple 70V9199L9PFGI devices be depth-expanded without external logic?

Yes, the 70V9199L9PFGI supports logic-free depth expansion using its dual chip enables (CE0X and CE1X) per port. For example, two devices can be cascaded by tying CE1 of the first to CE0 of the second, with address bit A17 selecting bank-eliminating glue logic and PCB routing complexity. This architecture is validated in Renesas' application note AN-4859 and widely used in FPGA-based memory subsystems.