Renesas 70V3379S6BF

Overview

70V3379S6BF from Integrated Device Technology is a high-speed 3.3V 32K × 18-bit synchronous dual-port static RAM with pipelined output mode, 133MHz operation (7.5ns cycle time), and independent 3.3V/2.5V I/O interface per port. It supports simultaneous read/write access to the same memory location and is used in telecom line cards, network packet buffers, and real-time video frame stores.

For engineers reviewing the 70V3379S6BF datasheet, 70V3379S6BF pinout, 70V3379S6BF application, or 70V3379S6BF equivalent, key selection criteria include pipelined clock-to-data timing (≤6ns), dual-voltage I/O flexibility (3.3V/2.5V per port), industrial-grade temperature support (−40°C to +85°C), and depth-expansion capability via dual chip enables without external logic.

Technical Context

The 70V3379S6BF implements fully synchronous dual-port architecture with register-controlled address, data, and control inputs on both left and right ports, enabling minimal setup/hold times (1.8ns/0.7ns @133MHz). Its self-timed write pulse operates independently of clock edge transitions, decoupling write latency from clock timing constraints.

Each port features independent OPT pins to select 3.3V or 2.5V I/O voltage levels, with corresponding VDDQ supplies. The integrated address counter-controlled by CNTEN and CNTRST-supports burst-mode sequential access without external address generation, while ADS allows asynchronous address latching on rising CLK edges.

Key Specifications

Pinout & Package

70V3379S6BF is housed in a 208-pin fpBGA (BF208) package with 17 mm × 17 mm footprint and 1.0 mm ball pitch. Power and ground pins are distributed across all four sides for low-impedance supply routing and EMI reduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1375BV25-167AXC and AS7C33256PFS-15TIN, the 70V3379S6BF uniquely delivers per-port 2.5V/3.3V I/O selection, pipelined 6ns read latency, and integrated address counter-enabling compact, high-throughput, mixed-voltage embedded memory subsystems without external support components.

Availability

70V3379S6BF is available at Aetrix Electronics and suitable for telecom infrastructure, broadcast video processing, industrial automation, and automated test equipment requiring stable component supply across extended product lifecycles.

Supply support for 70V3379S6BF 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 high-performance timing, memory interface, and RF power solutions for communications and computing markets.

The IDT70V3379 product line was designed specifically for high-bandwidth, low-latency dual-access memory applications in networking equipment, real-time signal processing, and industrial control systems demanding deterministic timing and flexible voltage interfacing.

FAQ

What is the maximum operating frequency of the 70V3379S6BF?

The 70V3379S6BF supports a minimum clock cycle time of 12 ns, enabling operation up to 83 MHz. This speed grade (S6) is validated across the full industrial temperature range (−40°C to +85°C) with guaranteed timing margins for all control and data paths, including pipelined clock-to-data output.

Does the 70V3379S6BF support independent voltage operation on its two ports?

Yes, the 70V3379S6BF supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH configures the left port for 3.3V I/O operation (VDDQL = 3.3V), while setting OPTR to VIL configures the right port for 2.5V I/O (VDDQR = 2.5V)-enabling direct interfacing with mixed-voltage SoCs without level shifters.

How does the address counter function in the 70V3379S6BF?

The 70V3379S6BF includes an internal 15-bit address counter per port, controlled by CNTENL/CNTENR and CNTRSTL/CNTRSTR. When CNTEN = VIL on a rising CLK edge, the counter advances automatically; ADS = VIH selects counter output as the active address, enabling burst-mode sequential access without external address generation logic.

What package type is used for the 70V3379S6BF?

70V3379S6BF is packaged in a 208-pin fine-pitch ball grid array (fpBGA) designated BF208, with a 17 mm × 17 mm body size and 1.0 mm ball pitch. This RoHS-compliant green package provides high I/O density and thermal performance suitable for compact, high-speed PCB layouts in telecom and industrial applications.

Can the 70V3379S6BF be used for depth expansion without additional logic?

Yes, the 70V3379S6BF features dual chip enables (CE0L/CE1L and CE0R/CE1R) per port, allowing up to four devices to be stacked in depth configuration using only two global control signals. Truth Table I in the datasheet confirms that CE0 = LOW and CE1 = HIGH activates a port, while CE0 = HIGH or CE1 = LOW disables it-eliminating need for external address decoders.