Infineon Technologies CY7C1020CV33-10ZXCT

Overview

CY7C1020CV33-10ZXCT from Cypress Semiconductor is a 512 Kbit (32K × 16) high-speed CMOS static RAM with 10 ns access time, 3.3 V supply, and independent byte write control via BHE/ BLE pins. It operates across industrial temperature range (–40°C to +85°C), features automatic CE-controlled power-down (ISB2 = 5 mA), and is packaged in a Pb-free 44-pin TSOP II for space-constrained embedded memory subsystems.

For engineers reviewing the CY7C1020CV33-10ZXCT datasheet, CY7C1020CV33-10ZXCT pinout, CY7C1020CV33-10ZXCT application, or CY7C1020CV33-10ZXCT equivalent, key selection criteria include tAA ≤ 10 ns read timing, dual-byte enable logic, CMOS-compatible 3.3 V I/O levels, low active current (90 mA max), and TSOP II footprint compatibility with legacy CY7C1020V33 designs.

Technical Context

This SRAM implements a synchronous, non-volatile-access memory array with full address decoding (A0–A14), bidirectional 16-bit data bus (I/O1–I/O16), and three-level chip select architecture (CE, OE, WE). Its byte-select logic enables partial-word writes without read-modify-write cycles.

The device uses TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and delivers guaranteed VOH ≥ 2.4 V / VOL ≤ 0.4 V under load, supporting direct interfacing with 3.3 V microcontrollers and FPGAs. Power management relies on CE-driven automatic transition between ICC (90 mA) and ISB2 (5 mA) states.

Key Specifications

Pinout & Package

Package: 44-pin TSOP Type II (Pb-free), 18.5 mm × 10.3 mm × 1.2 mm body, 0.8 mm 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 and AS6C4008-10TIN, CY7C1020CV33-10ZXCT uniquely delivers true independent byte write capability with zero-cycle overlap penalty, making it essential for real-time systems requiring deterministic partial-word updates without bus contention or software intervention.

Availability

CY7C1020CV33-10ZXCT is available at Aetrix Electronics and suitable for industrial PLC memory buffers, automotive ADAS sensor caches, and medical imaging front-end FIFOs requiring stable component supply and long-term lifecycle assurance.

Supply support for CY7C1020CV33-10ZXCT 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 U.S.-based semiconductor company specializing in memory, microcontrollers, and programmable system-on-chip solutions for industrial, automotive, and communications markets.

The CY7C1020CV33 belongs to Cypress's high-speed parallel SRAM product line, designed specifically for deterministic, low-latency memory interfacing in real-time embedded systems where bus cycle predictability and partial-word write efficiency are critical.

FAQ

What is the maximum clock frequency supported for continuous read cycles?

The CY7C1020CV33-10ZXCT does not use a clock signal; it is an asynchronous SRAM. Its maximum sustained read throughput is determined by tRC = 10 ns, enabling up to 100 million reads per second in burst mode with proper address setup and hold timing maintained.

Can BHE and BLE be asserted simultaneously for full 16-bit writes?

Yes - asserting both BHE and BLE LOW while CE and WE are LOW enables concurrent writing of all 16 data bits (I/O1–I/O16) to the addressed location. This is the standard full-word write mode and requires no additional timing constraints beyond those specified for individual byte writes.

Does this device require external pull-up resistors on control pins?

No - all control inputs (CE, OE, WE, BHE, BLE) have internal TTL-compatible input circuitry with defined VIH/VIL thresholds. External pull-ups are unnecessary unless system-level noise immunity requirements mandate them per board-level EMI design rules.

Is the 44-pin TSOP II package compatible with reflow soldering per J-STD-020?

Yes - the Pb-free TSOP II package (JEDEC MO-141AC) is qualified for lead-free reflow per J-STD-020D. Peak temperature rating is 260°C for 30 seconds, with ramp-up rate ≤ 3°C/s and cooling rate ≤ 6°C/s, matching standard Class 3 assembly processes.