Infineon Technologies CY7C1354C-166BZCT

Overview

CY7C1354C-166BZCT from Cypress Semiconductor is a 9-Mbit (256K × 36) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput back-to-back read/write operations in network packet buffers and telecom line cards. It operates at 166 MHz with 3.5 ns maximum access time, supports 3.3V core supply and 2.5V/3.3V I/O supply (VDDQ), and delivers zero wait-state burst transfers using fully registered inputs/outputs.

For engineers reviewing the CY7C1354C-166BZCT datasheet, CY7C1354C-166BZCT pinout, CY7C1354C-166BZCT application, or CY7C1354C-166BZCT equivalent, key selection criteria include pipelined clock-to-output timing (tCO = 3.5 ns), synchronous byte write control (BWa–BWd), JTAG boundary-scan support, and compatibility with ZBT-style memory controllers in FPGA-based infrastructure systems.

Technical Context

This SRAM implements a fully synchronous, pipelined NoBL™ interface where all address, control, and data signals are registered on the rising edge of CLK, with CEN qualifying clock recognition. The internal burst counter supports linear or interleaved 4-word bursts controlled by the MODE strap pin and ADV/LD signal.

Write operations use on-chip self-timed circuitry synchronized to CLK, eliminating external write-strobe timing constraints; outputs are synchronously tristated during write data cycles regardless of OE state. Three chip enables (CE1 active-low, CE2 active-high, CE3 active-low) enable flexible bank decoding without external logic.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (Pb-free), body size 14 mm × 14 mm, 0.5 mm pitch. Pinout validated per Cypress Document #38-05538 Rev. *H, Figure 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous pipelined SRAM applications.

Compared with IDT72V2115L16PF and IS61WV102436BLL-166TQLI, CY7C1354C-166BZCT uniquely combines 256K × 36 density, VDDQ voltage flexibility, four independent byte-write enables, and JTAG testability in a compact 100-pin TQFP-making it optimal for space-constrained, mixed-voltage telecom control planes.

Availability

CY7C1354C-166BZCT is available at Aetrix Electronics and suitable for network packet buffers, telecom line card memory, FPGA-based protocol analyzers, and high-speed test equipment requiring stable component supply across extended production lifecycles.

Supply support for CY7C1354C-166BZCT 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 communications, industrial, and automotive systems.

CY7C1354C belongs to Cypress's NoBL™ SRAM product line, engineered specifically to replace asynchronous and ZBT SRAMs in systems demanding deterministic zero-wait-state burst performance with simplified timing closure.

FAQ

What is the function of the MODE pin on CY7C1354C-166BZCT?

The MODE pin is a static strap input that selects burst order: logic HIGH configures interleaved burst mode, while logic LOW selects linear burst mode. It must be held stable during operation and defaults to HIGH if left floating, enabling interleaved access without external configuration. This setting directly determines how the internal burst counter increments A0/A1 during multi-word reads/writes.

Can CY7C1354C-166BZCT operate with VDDQ = 2.5 V while VDD = 3.3 V?

Yes - the device supports independent 3.3 V core supply (VDD) and 2.5 V I/O supply (VDDQ), allowing seamless interfacing with 2.5 V FPGAs or ASICs while maintaining full 166 MHz performance. This dual-supply capability is explicitly specified in the DC Electrical Characteristics table and requires separate decoupling for each rail.

How does the ZZ (Sleep) pin reduce power consumption?

Asserting ZZ LOW places the SRAM into low-power sleep mode, reducing CMOS standby current to ≤40 mA regardless of clock frequency or bus activity. Unlike clock gating, ZZ disables internal arrays and registers entirely, making it ideal for intermittent capture applications like protocol analyzers where memory remains idle between triggers.

Is CY7C1354C-166BZCT pin-compatible with ZBT SRAMs?

Yes - Cypress specifies CY7C1354C as pin-compatible and functionally equivalent to industry-standard ZBT SRAMs (e.g., IDT 72V2113), sharing identical pin functions, timing conventions, and control signal behavior. This allows drop-in replacement in existing ZBT-based designs without layout or firmware changes.