Infineon Technologies CY7C09379V-12AC

Overview

CY7C09379V-12AC from Cypress Semiconductor is a 3.3V, 32K × 18-bit synchronous dual-port static RAM with pipelined and flow-through operation modes, 100-pin TQFP package, 50 MHz max pipelined clock frequency, 12 ns max clock-to-data access time (pipelined), and 115 mA typical active current - used in high-speed FPGA co-processing and real-time video frame buffering.

For engineers reviewing the CY7C09379V-12AC datasheet, CY7C09379V-12AC pinout, CY7C09379V-12AC application, or CY7C09379V-12AC equivalent, this device supports simultaneous independent read/write on left/right ports, burst counter-driven address sequencing, byte-selectable I/O, and low-power CMOS design for deterministic timing in embedded control and digital signal processing systems.

Technical Context

This SRAM implements true dual-ported memory cells enabling concurrent access to any memory location from two independent synchronous interfaces. Each port features dedicated clock (CLKL/CLKR), chip enables (CE0L/CE1L, CE0R/CE1R), address strobe (ADSL/ADSR), and burst control (CNTENL/CNTRSTL, CNTENR/CNTRSTR).

It supports three operational modes selected via FT/PIPE pins: pipelined (6.5–12 ns tCD2), flow-through (15–25 ns tCD1), and burst - with internal address counters that increment on rising clock edges when CNTEN is asserted and ADS loads initial address. The device uses 0.35 µm CMOS process and operates across industrial temperature range (–40°C to +85°C).

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Plastic Flatpack (TQFP), 14 mm × 14 mm body, 0.5 mm lead pitch, RoHS-compliant Pb-free construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L12PF and ISSI IS61WV3218B, CY7C09379V-12AC uniquely delivers x18 synchronous dual-port operation with integrated burst counters and selectable pipelined/flow-through latency - making it the only option for deterministic, high-speed, multi-clock-domain memory sharing in FPGA and DSP systems.

Availability

CY7C09379V-12AC is available at Aetrix Electronics and suitable for FPGA co-processing interfaces, real-time video buffering, digital signal processing pipelines, and industrial communication protocol stacks requiring stable component supply and long-term manufacturability.

Supply support for CY7C09379V-12AC 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance memory and programmable solutions for embedded systems, emphasizing reliability, low power, and timing precision.

CY7C09379V belongs to the CY7C09x69V/79V/89V synchronous dual-port SRAM product line, engineered specifically for applications demanding simultaneous, deterministic access across clock domains - such as video processing, network switching, and real-time control.

FAQ

What is the difference between pipelined and flow-through modes?

In pipelined mode (FT/PIPE = HIGH), output data is registered, delivering 12 ns clock-to-data access at 50 MHz but introducing one-cycle latency. In flow-through mode (FT/PIPE = LOW), data appears combinatorially after 25 ns, eliminating latency but limiting max frequency to 33 MHz. Mode selection is per-port and static during operation.

Can both ports access the same memory location simultaneously?

Yes - the CY7C09379V-12AC uses true dual-ported memory cells allowing concurrent read/write to the same address. However, when both ports write simultaneously, the final stored value is indeterminate per datasheet Note 11; use external arbitration if coherent writes are required.

How does the burst counter function in practice?

The burst counter loads its initial value from the address bus when ADS is asserted LOW, then increments on each rising clock edge while CNTEN is LOW. It wraps automatically across the full 32K address space, enabling continuous sequential access without CPU or FPGA address updates - ideal for video line buffering or FFT data movement.

Is the 100-pin TQFP package lead-free and RoHS compliant?

Yes - the CY7C09379V-12AC is manufactured in a Pb-free 100-pin TQFP package meeting RoHS Directive 2011/65/EU requirements. Pin plating is matte tin, and the device is rated for reflow soldering per JEDEC J-STD-020D.2, peak temperature 260°C.