Infineon Technologies CY7C1354C-166AXCT

Overview

CY7C1354C-166AXCT from Cypress Semiconductor is a 9-Mbit (256K × 36) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory buffering in network packet processors and telecom line cards. It operates at 166 MHz with zero wait states, supports 3.3 V VDD and 2.5 V/3.3 V VDDQ I/O, and delivers 3.5 ns clock-to-output access time.

For engineers reviewing the CY7C1354C-166AXCT datasheet, CY7C1354C-166AXCT pinout, CY7C1354C-166AXCT application, or CY7C1354C-166AXCT equivalent, key selection criteria include burst order configuration (linear/interleaved), byte-write select mapping (BWa–BWd), synchronous self-timed write timing, and TQFP-100 package compatibility with ZBT-style interfaces.

Technical Context

The CY7C1354C-166AXCT implements fully registered synchronous operation: all address, control, and data inputs are latched on the rising edge of CLK, and all outputs pass through output registers synchronized to CLK. Its NoBL™ logic eliminates bus latency by enabling true back-to-back read/write cycles without wait states.

Burst capability is configurable via the MODE pin (linear or interleaved), while internal self-timed output buffer control removes dependency on asynchronous OE for tristate management. Byte write is controlled by four independent BW signals (BWa–BWd), each governing one 9-bit data/parity group (DQa/DQPa through DQd/DQPd).

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, RoHS-compliant, with exposed thermal pad.

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, the CY7C1354C-166AXCT uniquely combines NoBL™ zero-wait-state throughput, MODE-configurable burst order, and dual-voltage VDDQ - making it optimal for new designs demanding maximum interface simplicity and power-aware operation.

Availability

CY7C1354C-166AXCT is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, baseband processor cache, and radar signal processing applications requiring stable component supply across extended production lifecycles.

Supply support for CY7C1354C-166AXCT 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) is a fabless semiconductor company specializing in high-performance memory, microcontrollers, and programmable system-on-chip solutions for industrial, automotive, and communications markets.

The CY7C1354C belongs to Cypress's NoBL™ SRAM product line, engineered specifically for deterministic, high-bandwidth memory interfacing in packet-switched infrastructure where bus latency directly impacts system throughput.

FAQ

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

The MODE pin is a static configuration input that determines burst addressing order: pulled HIGH for interleaved burst (e.g., 0, 2, 4, 6… then 1, 3, 5, 7…), or LOW for linear burst (0, 1, 2, 3…). It must be set before initial access and remains latched throughout operation - no dynamic reconfiguration is supported.

Does CY7C1354C-166AXCT support 2.5 V-only I/O operation?

Yes - VDDQ may be supplied at 2.5 V ±0.2 V while VDD remains at 3.3 V ±0.3 V. This allows direct connection to 2.5 V FPGA I/O banks or ASIC interfaces without level-shifting circuitry, provided VDDQ stability meets datasheet ripple specifications (≤30 mV peak-to-peak).

How does the ZZ pin affect power consumption?

Asserting ZZ LOW places the device in deep sleep mode, reducing CMOS standby current to ≤40 mA (typical) regardless of clock activity. Data retention is maintained, and exit latency is one clock cycle after ZZ returns HIGH - enabling rapid wake-up for burst-oriented traffic patterns.

Can CE2 be used as an active-HIGH chip select without external inversion?

Yes - CE2 is natively active HIGH and sampled synchronously on the rising edge of CLK when CEN is LOW. It is designed to pair with CE1 and CE3 (both active LOW) for three-level chip select decoding, enabling direct use with controllers that provide complementary chip enable signals.