Infineon Technologies CY7C1480V33-167AXCT

Overview

CY7C1480V33-167AXCT from Cypress Semiconductor is a 72-Mbit pipelined synchronous SRAM configured as 2M × 36, operating at 167 MHz with 3.3 V core supply and 2.5/3.3 V I/O compatibility, supporting Intel Pentium®-compatible interleaved or linear burst sequences in high-performance cache subsystems for networking processors and telecom line cards.

For engineers reviewing the CY7C1480V33-167AXCT datasheet, CY7C1480V33-167AXCT pinout, CY7C1480V33-167AXCT application, or CY7C1480V33-167AXCT equivalent, key selection criteria include synchronous burst timing, byte-write granularity, ZZ sleep mode behavior, and JEDEC-compliant TQFP package compatibility with legacy SRAM-based memory controllers.

Technical Context

This SRAM implements a positive-edge-triggered clock interface with registered address, data, and control inputs, enabling deterministic 3.4 ns clock-to-output (tCO) at 167 MHz and pipelined 3-1-1-1 access rate. The on-chip 2-bit burst counter supports wraparound addressing under ADV control, synchronized to CLK rising edges.

All write operations are self-timed and synchronous, qualified by BWE and byte-select lines (BWA–BWD), while GW provides unconditional global write capability. OE operates asynchronously to tri-state outputs, and ZZ enables low-power sleep with data retention-both independent of CLK timing.

Key Specifications

Pinout & Package

Package: JEDEC-standard Pb-free 100-pin thin quad flat pack (TQFP), 14 × 20 × 1.4 mm body, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AS7C3256A-167JCIN and IS61WV102436B-167TQLI, CY7C1480V33-167AXCT uniquely delivers 2M × 36 depth, user-selectable burst mode, and ZZ sleep-all in a pin-compatible TQFP package-making it optimal for upgrade paths requiring higher bandwidth and lower idle power.

Availability

CY7C1480V33-167AXCT is available at Aetrix Electronics and suitable for network processor cache, telecom line card buffer, and industrial PLC memory expansion requiring stable component supply across extended product lifecycles.

Supply support for CY7C1480V33-167AXCT 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 industrial, automotive, and communications infrastructure.

CY7C1480V33-167AXCT belongs to Cypress's pipelined synchronous SRAM product line, engineered specifically for deterministic-latency cache and buffer applications in high-speed digital systems requiring burst-mode efficiency and low-power sleep capability.

FAQ

What is the function of the MODE pin on CY7C1480V33-167AXCT?

The MODE pin selects burst address sequence: logic LOW configures interleaved burst (compatible with Intel Pentium® processors), while logic HIGH selects linear burst. It is sampled at power-up and latched; changing MODE during operation has no effect until reset or power cycle. This eliminates software overhead for burst configuration in fixed-architecture systems.

Can CY7C1480V33-167AXCT operate with 2.5 V I/O while core runs at 3.3 V?

Yes. VDDQ accepts 2.5 V ± 0.2 V independently of VDD (3.3 V ± 0.3 V), enabling direct interface to 2.5 V logic without level shifters. VSSQ is the dedicated ground return for VDDQ, and must be connected separately from core VSS in PCB layout to maintain signal integrity and noise isolation.

How does the ZZ sleep mode affect timing and data retention?

In ZZ mode (pin HIGH), core clocks halt, dynamic current drops to ≤120 mA, and all internal registers retain state. Data remains valid indefinitely as long as VDD ≥ 2.7 V. Exit to active mode requires ZZ LOW followed by two stable CLK cycles before valid accesses resume-no initialization sequence is needed.

Is CY7C1480V33-167AXCT pin-compatible with earlier speed grades like -200AXCT?

Yes. All CY7C1480BV33 speed variants (-250AXCT, -200AXCT, -167AXCT) share identical 100-pin TQFP pinout, electrical interface, and register mapping. Slower speed grades may be substituted in designs meeting their respective tCO and setup/hold timing margins, but not vice versa due to timing closure constraints.