Infineon Technologies CY7C1462AV33-167AXCT

Overview

CY7C1462AV33-167AXCT from Cypress Semiconductor is a 3.3V synchronous pipelined SRAM with NoBL™ architecture, configured as 2M × 18 (36 Mbit), supporting 167 MHz bus operation with zero wait states. It features fully registered inputs/outputs, byte write capability via BWa–BWb, and synchronous self-timed writes. Used in high-throughput packet buffering and network switch fabric control planes where back-to-back read/write transitions are critical.

For engineers reviewing the CY7C1462AV33-167AXCT datasheet, CY7C1462AV33-167AXCT pinout, CY7C1462AV33-167AXCT application, or CY7C1462AV33-167AXCT equivalent, key selection criteria include burst mode support (linear/interleaved), ZZ sleep mode for power gating, IEEE 1149.1 JTAG boundary scan for system-level testability, and compatibility with ZBT-style memory controllers.

Technical Context

The device implements a pipelined architecture with three-stage address registration (input register, write address register 1/2) and output registers synchronized to CLK rising edge. All synchronous controls - CE1 (active low), CE2 (active high), CE3 (active low), WE, BWa/BWb, ADV/LD, and CEN - are sampled on CLK's rising edge when CEN is asserted.

Output drivers are synchronously tristated during write data cycles and upon deselection, eliminating bus contention. Internal self-timed output buffer control removes dependency on asynchronous OE timing, while burst logic supports linear or interleaved addressing based on MODE pin state (GND = linear, floating/VDD = interleaved).

Key Specifications

Pinout & Package

The CY7C1462AV33-167AXCT is packaged in a 165-ball FBGA (15 × 17 mm, 1.4 mm height) compliant with JEDEC MO-270AB. Ball pitch is 0.8 mm; package is Pb-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L167PF and IS61WV204818BLL-167TQLI, the CY7C1462AV33-167AXCT uniquely combines ZBT compatibility, integrated JTAG, and hardware-managed sleep - making it optimal for upgradable telecom infrastructure where field-testability and power-aware operation are mandatory.

Availability

CY7C1462AV33-167AXCT is available at Aetrix Electronics and suitable for network packet buffering, telecom line card control memory, baseband processing cache, and radar signal processing FIFO applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1462AV33-167AXCT 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) is a fabless semiconductor company specializing in high-performance memory, microcontrollers, and programmable analog/digital ICs for industrial, automotive, and communications markets.

The CY7C146xAV33 family was designed specifically for zero-latency, high-bandwidth memory subsystems in networking and telecom equipment - emphasizing deterministic timing, burst flexibility, and system-level testability via JTAG.

FAQ

What is the function of the MODE pin on CY7C1462AV33-167AXCT?

The MODE pin selects burst address sequence behavior: tied to GND enables linear burst ordering (A0–A19 increment sequentially), while floating or connected to VDD enables interleaved burst (address bits A1–A19 toggle in Gray-code pattern). This matches legacy cache or DRAM controller expectations without requiring firmware changes.

Does CY7C1462AV33-167AXCT support 2.5V I/O operation?

Yes - VDDQ supports 2.3 V to 3.6 V, allowing direct interface with 2.5 V logic families. The core VDD remains fixed at 3.3 V (3.135–3.6 V), so level-shifting is unnecessary. I/O timing parameters (e.g., tAC, tOH) are specified separately for 2.5 V and 3.3 V VDDQ conditions in the datasheet.

How does the ZZ pin reduce power consumption?

Asserting ZZ low disables internal clocks, output buffers, and address latches, reducing standby current to <50 µA - far below the 120 mA CMOS standby spec. Unlike standard standby, ZZ retains all memory contents and resumes operation within one clock cycle after deassertion, with no initialization delay.

Can CY7C1462AV33-167AXCT be used in place of CY7C1460AV33-167AXCT?

No - although pin-compatible in the 165-ball FBGA, they differ in data width and pin mapping: CY7C1460AV33 is 1M × 36 (36-bit data bus), while CY7C1462AV33 is 2M × 18 (18-bit data bus with parity pins DQPa/DQPb). Swapping requires PCB redesign and firmware data path reconfiguration.