Infineon Technologies CY7C09169AV-12AXC

Overview

CY7C09169AV-12AXC from Cypress Semiconductor is a 16K × 9 (144 Kbit) synchronous dual-port static RAM with true independent left/right port access, pipelined or flow-through output modes, 12 ns max clock-to-data access in pipelined mode, and 3.3 V operation. It supports burst addressing, automatic power-down, and depth expansion via dual chip enables - used in high-speed network packet buffering and real-time DSP memory sharing.

For engineers reviewing the CY7C09169AV-12AXC datasheet, CY7C09169AV-12AXC pinout, CY7C09169AV-12AXC application, or CY7C09169AV-12AXC equivalent, key selection criteria include pipelined vs. flow-through latency trade-offs, dual-port timing isolation, 100-pin TQFP footprint compatibility, and industrial temperature support (–40°C to +85°C).

Technical Context

This device implements two fully synchronous, independently clocked ports with register-controlled address/data paths, enabling simultaneous read/write to any memory location. Each port features dedicated ADS, CNTEN, CNTRST, and FT/PIPE control signals, supporting interleaved burst transfers without external counters.

The internal architecture includes dual address registers, dual burst counters, and true dual-ported SRAM array with no arbitration logic - final data value is undefined when both ports write to the same address simultaneously. Pipelined mode uses registered outputs for 50 MHz operation (tCD2 = 12 ns), while flow-through mode delivers tCD1 = 25 ns with zero-cycle latency.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L12PF8 and IS61WV102416BLL-12MLI, CY7C09169AV-12AXC uniquely delivers integrated burst counters, dual CE pairs for scalable memory banks, and guaranteed simultaneous port access - critical for deterministic real-time systems where external logic adds latency or complexity.

Availability

CY7C09169AV-12AXC is available at Aetrix Electronics and suitable for network packet buffering, DSP co-processor memory sharing, and industrial motion controller FIFOs requiring stable component supply, long-lifecycle support, and industrial-grade thermal performance.

Supply support for CY7C09169AV-12AXC 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 signal integrity, low-power operation, and industrial reliability.

CY7C09169AV belongs to Cypress's synchronous dual-port SRAM product line, engineered specifically for deterministic, low-latency memory sharing between asynchronous processors, FPGAs, and ASICs in telecom, industrial automation, and networking equipment.

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 valid time at 50 MHz but adding one-cycle latency. In flow-through mode (FT/PIPE = LOW), data appears combinatorially after 25 ns with zero-cycle latency - ideal for command injection where timing predictability outweighs throughput. Both modes are selectable per port.

Can both ports write to the same memory location simultaneously?

Yes, but the final stored value is undefined per datasheet Note 2. The device lacks internal arbitration; simultaneous writes to identical addresses result in indeterminate data due to race conditions in the SRAM cell. System-level synchronization (e.g., semaphore flags or external logic) is required to prevent conflicts.

Does CY7C09169AV-12AXC support burst addressing without external logic?

Yes. Each port includes a dedicated burst counter loaded via ADS and enabled by CNTEN. When CNTEN is LOW, the counter increments on every CLK rising edge, generating sequential addresses internally - eliminating need for external address generators or CPU intervention during burst transfers.

What is the purpose of the dual CE0/CE1 pair per port?

The CE0 (active-low) and CE1 (active-high) pair provides noise-immune chip selection: both signals must be asserted simultaneously to enable the port. This design prevents false activation from ground bounce or EMI, and enables straightforward depth expansion using simple NAND logic to cascade multiple devices without additional decode circuitry.