Renesas 70V9199L9PFGI8

Overview

70V9199L9PFGI8 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 support (–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 70V9199L9PFGI8 datasheet, 70V9199L9PFGI8 pinout, 70V9199L9PFGI8 application, or 70V9199L9PFGI8 equivalent, key selection criteria include pipelined vs. flow-through output timing, dual chip enable depth expansion capability, address counter control for burst transfers, LVTTL-compatible I/O, and industrial-grade power-down current specs (ISB3 = 0.4 mA typ).

Technical Context

This device implements fully synchronous dual-port architecture with registered address, data, and control inputs on both ports-ensuring 4 ns setup and 1 ns hold times relative to CLK. Its internal pipeline registers enable 15 ns cycle time at 66 MHz in pipelined mode, while self-timed write logic minimizes external timing constraints.

The dual-port interface supports independent address strobe (ADS), counter enable (CNTEN), and counter reset (CNTRST) per port, allowing interleaved memory access patterns without external sequencing logic. FT/PIPE pins configure each port independently for flow-through (tCD1 ≤ 20 ns) or pipelined (tCD2 ≤ 9 ns) output behavior.

Key Specifications

Pinout & Package

70V9199L9PFGI8 is housed in a 100-pin Thin Quad Flatpack (TQFP, package code PNG100) with exposed pad not electrically connected. Pin 1 is located at top-left corner (marked by dot or beveled edge); all VDD pins require local 3.3 V decoupling, and all VSS pins must connect to ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1370D-133AXC and AS7C3128A-12JIN, the 70V9199L9PFGI8 uniquely combines pipelined 9 ns access, on-chip address counter, dual CE depth expansion, and industrial temperature qualification-making it optimal for deterministic real-time control systems where latency predictability and environmental robustness are non-negotiable.

Availability

70V9199L9PFGI8 is available at Aetrix Electronics and suitable for industrial motor drives, avionics sensor hubs, real-time communication gateways, and digital signal processing subsystems requiring stable component supply across extended product lifecycles.

Supply support for 70V9199L9PFGI8 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The 70V9199L9PFGI8 belongs to Renesas' legacy IDT dual-port memory portfolio, engineered specifically for deterministic, low-latency data sharing between heterogeneous processors, FPGAs, and peripherals in real-time control systems.

FAQ

What is the maximum operating frequency of the 70V9199L9PFGI8 in pipelined mode?

The 70V9199L9PFGI8 supports up to 66 MHz operation in pipelined mode, derived from its 15 ns minimum clock cycle time (tCYC2). This timing is guaranteed across the full industrial temperature range (–40°C to +85°C) and 3.3 V ± 0.3 V supply, enabling sustained high-throughput data transfer without wait states in real-time systems.

Does the 70V9199L9PFGI8 support independent output mode configuration for left and right ports?

Yes, the 70V9199L9PFGI8 provides dedicated FT/PIPEL and FT/PIPER pins, allowing independent selection of pipelined (FT/PIPE = VIH) or flow-through (FT/PIPE = VIL) output behavior per port. This enables mixed-mode operation-for example, pipelined reads on the right port for speed-critical processing while using flow-through writes on the left port for precise timing alignment.

How does the address counter function in the 70V9199L9PFGI8, and what signals control it?

The 70V9199L9PFGI8 integrates a per-port address counter controlled by CNTENL/CNTENR (enable) and CNTRSTL/CNTRSTR (reset) inputs. When CNTEN = VIL on the rising edge of CLK, the counter increments automatically; CNTRST = VIL forces the counter to address 0. ADS input determines whether external or counter-generated addresses are latched-enabling efficient burst transfers without host CPU intervention.

What is the standby current specification for the 70V9199L9PFGI8, and how is it achieved?

The 70V9199L9PFGI8 achieves a full standby current of 0.4 mA (typical) when both ports are disabled via CE0 and CE1 logic levels (CE0 > VDD − 0.2 V and CE1 < 0.2 V). This ultra-low ISB3 current is enabled by internal automatic power-down circuitry that gates clock distribution and disables I/O drivers-critical for energy-constrained industrial and avionics applications.

Can the 70V9199L9PFGI8 be used for depth expansion, and what pins facilitate this?

Yes, the 70V9199L9PFGI8 supports seamless depth expansion using its dual chip enables (CE0L/CE1L and CE0R/CE1R). By configuring CE0 and CE1 in complementary states across multiple devices, designers can stack units without external logic-e.g., CE0L = VIL/CE1L = VIH enables one device while CE0L = VIH/CE1L = VIL disables it, enabling straightforward 256K × 9-bit or larger memory arrays.