Infineon Technologies CY7C1020CV33-15ZSXET

Overview

CY7C1020CV33-15ZSXET from Cypress Semiconductor is a 32 K × 16-bit (512 Kbit) CMOS static RAM with 15 ns maximum access time, 3.3 V supply, and automatic CE-controlled power-down. It supports independent byte-wide write enable via BHE/BLE pins and operates across industrial temperature range (–40 °C to +85 °C) in a 44-pin TSOP II package. Used in embedded controllers requiring fast, low-power, non-volatile-critical data buffering.

For engineers reviewing the CY7C1020CV33-15ZSXET datasheet, CY7C1020CV33-15ZSXET pinout, CY7C1020CV33-15ZSXET application, or CY7C1020CV33-15ZSXET equivalent, key selection criteria include tAA = 15 ns access time, dual-byte write control, ISB2 = 5 mA standby current, and TSOP II mechanical compatibility with legacy SRAM-based memory subsystems.

Technical Context

The CY7C1020CV33-15ZSXET implements a synchronous, address-decoded 32,768 × 16-bit SRAM array with TTL/CMOS-compatible inputs and bidirectional I/O1–I/O16 data bus. Its read/write timing is governed by overlapping CE, WE, OE, BHE, and BLE control signals-no internal clock or refresh required.

Power management relies on automatic CE-driven transition between active mode (ICC ≤ 80 mA) and two standby states: ISB1 = 15 mA (TTL input levels) and ISB2 = 5 mA (CMOS input levels). Byte-select architecture enables partial-word writes without read-modify-write cycles.

Key Specifications

Pinout & Package

Package: 44-pin Thin Small Outline Package Type II (TSOP II), lead-free, RoHS-compliant, body size 10.16 mm × 20.95 mm, 0.8 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV51216AL-15MLI and MC1020V33-15L, the CY7C1020CV33-15ZSXET uniquely combines TSOP II mechanical compatibility, industrial temperature qualification, and guaranteed 5 mA CMOS standby current-making it optimal for space-constrained, thermally demanding embedded systems.

Availability

CY7C1020CV33-15ZSXET is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical imaging data FIFOs, automotive ADAS sensor hubs, and test equipment pattern memory requiring stable component supply and long-term lifecycle support.

Supply support for CY7C1020CV33-15ZSXET 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 memory, PSoC, USB, and wireless solutions for industrial, automotive, and consumer markets.

The CY7C1020CV33 belongs to Cypress's legacy high-speed asynchronous SRAM product line, designed specifically for pin-compatible upgrades in memory-intensive embedded systems where low latency and predictable timing are critical.

FAQ

Is CY7C1020CV33-15ZSXET RoHS-compliant and lead-free?

Yes. The "Z" suffix in CY7C1020CV33-15ZSXET denotes lead-free (Pb-free) construction per RoHS Directive 2011/65/EU. The device uses matte tin terminations and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) requirements.

Can CY7C1020CV33-15ZSXET operate with 2.5 V supply?

No. The device is specified only for 3.3 V ±10% (2.97 V to 3.63 V). Operation outside this range violates Absolute Maximum Ratings and may cause data corruption, increased leakage, or permanent damage per datasheet Section "Maximum Ratings".

What is the difference between ISB1 and ISB2 standby current specs?

ISB1 (15 mA max) applies when CE is HIGH and inputs meet TTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V). ISB2 (5 mA max) applies under stricter CMOS thresholds (VIH ≥ VCC – 0.3 V, VIL ≤ 0.3 V), reflecting deeper power-down achievable with clean logic-level drive.

Does CY7C1020CV33-15ZSXET require an external clock or refresh signal?

No. As a static RAM, it retains data indefinitely while powered and enabled-no clock, refresh cycle, or periodic access is required. Data persistence depends solely on stable VCC and valid CE assertion during read/write operations.