Infineon Technologies CY7C1020CV33-10ZXC

Overview

CY7C1020CV33-10ZXC from Cypress Semiconductor is a 512 Kbit (32K × 16) high-speed CMOS static RAM with 10 ns access time, 3.3 V supply, and automatic CE-controlled power-down. It supports independent byte write control via BHE/BLE inputs and operates across commercial (0°C to 70°C), industrial (–40°C to 85°C), and automotive (–40°C to 125°C) temperature ranges in a Pb-free 44-pin TSOP II package. Used in real-time data buffering for network packet processors and FPGA configuration memory.

For engineers reviewing the CY7C1020CV33-10ZXC datasheet, CY7C1020CV33-10ZXC pinout, CY7C1020CV33-10ZXC application, or CY7C1020CV33-10ZXC equivalent, key selection criteria include tAA ≤ 10 ns, dual-byte enable support, ISB2 standby current ≤ 5 mA (CMOS inputs), and TSOP II footprint compatibility with legacy CY7C1020V33 designs.

Technical Context

This SRAM implements a synchronous, non-volatile-independent architecture with fully decoded 15-bit address space (A0–A14) and bidirectional 16-bit I/O (I/O1–I/O16). Its read/write timing is governed by overlapping CE, WE, OE, BHE, and BLE control signals - not clocked - enabling asynchronous operation in microcontroller co-processor interfaces.

The device uses TTL- and CMOS-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and delivers guaranteed VOH ≥ 2.4 V / VOL ≤ 0.4 V under load. Power management relies on two distinct standby modes: ISB1 (TTL input logic levels) and ISB2 (CMOS input logic levels), with ISB2 achieving 5 mA max at VCC = 3.63 V.

Key Specifications

Pinout & Package

Package: 44-pin Thin Small Outline Package Type II (TSOP II), Pb-free, body size 18.517 mm × 10.262 mm × 1.194 mm, 0.8 mm lead pitch, JEDEC MO-141AC compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed parallel SRAM applications.

Compared with IS61LV51216AL-10MLI, CY7C1020CV33-10ZXC offers automotive qualification and TSOP II footprint compatibility, while MC68HC11E9CP is functionally incompatible as a microcontroller - making the Cypress device the sole viable choice for high-reliability, pin-compatible SRAM upgrades.

Availability

CY7C1020CV33-10ZXC is available at Aetrix Electronics and suitable for industrial PLC data buffering, FPGA configuration storage, and automotive body control modules requiring stable component supply across extended temperature ranges and RoHS-compliant packaging.

Supply support for CY7C1020CV33-10ZXC 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 markets, with emphasis on reliability and long-term supply stability.

The CY7C1020CV33 belongs to Cypress's parallel SRAM product line, engineered specifically for low-latency, byte-selectable data buffering in real-time embedded systems where deterministic timing and wide temperature operation are critical.

FAQ

What is the maximum operating frequency supported by CY7C1020CV33-10ZXC?

The device does not operate on a clock signal - it is an asynchronous SRAM. Its maximum usable bus frequency is determined by tRC = 10 ns, supporting up to 100 MHz burst transfers when interfaced with controllers that meet setup/hold timing. No internal oscillator or clock input exists.

Can CY7C1020CV33-10ZXC be used with 5 V tolerant microcontrollers?

No - it is strictly a 3.3 V device with VIH(max) = VCC + 0.3 V (≤ 3.93 V) and absolute maximum VCC = 4.6 V. Direct connection to 5 V I/O buses will damage the part. Level translation (e.g., TXB0108) is required for mixed-voltage systems.

Does this SRAM retain data during power loss?

No - it is volatile memory. Data is lost within microseconds of VCC dropping below 2.0 V. For nonvolatile storage, external EEPROM, Flash, or battery-backed SRAM must be used in conjunction with this device.

Is the 44-pin TSOP II footprint identical to CY7C1020V33?

Yes - CY7C1020CV33-10ZXC is pin- and function-compatible with CY7C1020V33 per datasheet Rev. *E. All signal names, pin numbers, and electrical behavior match exactly, enabling drop-in replacement without layout changes.