Infineon Technologies CY7C1019CV33-12VC

Overview

CY7C1019CV33-12VC from Cypress Semiconductor is a 1 Mbit (128K × 8) high-speed CMOS static RAM with 12 ns access time, 3.3 V supply, industrial temperature range (–40°C to +85°C), and automatic CE-controlled power-down mode. It supports tristate I/Os, center power/ground pinout, and memory expansion via dedicated CE/OE/WE controls in embedded microcontroller systems requiring deterministic low-latency data storage.

For engineers reviewing the CY7C1019CV33-12VC datasheet, CY7C1019CV33-12VC pinout, CY7C1019CV33-12VC application, or CY7C1019CV33-12VC equivalent, key selection criteria include tAA = 12 ns read timing, ISB2 = 5 mA standby current at CMOS inputs, VCC = 3.3 V ±10%, and compatibility with 32-pin SOJ (400-mil) and TSOP II packages for legacy board space constraints.

Technical Context

This SRAM implements a synchronous, non-volatile-retentive memory array with fully decoded 17-bit address bus (A0–A16) and 8-bit bidirectional data bus (I/O0–I/O7). Its dual active-Low control architecture-separate Chip Enable (CE) and Output Enable (OE)-enables precise cycle timing and hierarchical memory mapping in multi-chip systems.

The device uses CMOS logic with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and guarantees output drive strength of IOH = –4.0 mA / IOL = 8.0 mA under full VCC conditions. Automatic power-down activates when CE is HIGH, reducing ICC to 5 mA (ISB2) without external gating logic.

Key Specifications

Pinout & Package

Package: 32-pin SOJ (400-mil), body size 18.42 mm × 10.16 mm, lead pitch 1.27 mm, JEDEC MO-050AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV102416L-12MLI, CY7C1019CV33-12VC offers native 8-bit bus alignment and legacy SOJ compatibility; versus CY7C1019DV33-12VC, it trades minor timing margin for established qualification history in long-lifecycle industrial programs.

Availability

CY7C1019CV33-12VC is available at Aetrix Electronics and suitable for industrial PLC data buffering, automotive engine control units, and medical infusion pump controllers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1019CV33-12VC 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-reliability memory and programmable logic solutions for industrial, automotive, and communications infrastructure markets.

The CY7C1019C series targets cost-sensitive, space-constrained embedded systems needing fast, low-power parallel SRAM with proven manufacturability in SOJ and TSOP II packages.

FAQ

What is the maximum clock frequency supported for read/write cycles?

CY7C1019CV33-12VC does not use a clock signal; it operates asynchronously. The maximum effective throughput is determined by tRC = 12 ns, yielding up to 83.3 MHz sustained read/write cycle rate. Timing is controlled solely by CE̅, OE̅, and WE̅ signal edges, with no internal clock generator or PLL.

Can this SRAM retain data during brief VCC interruptions?

Yes - the device guarantees data retention down to VCC = 2.0 V, allowing continued operation during short brown-out events. Retention time depends on junction temperature and capacitance; at 25°C, data remains valid for ≥100 ms after VCC drops to 2.0 V, provided CE̅ remains HIGH to maintain power-down mode.

Is the 32-pin SOJ package RoHS-compliant?

The CY7C1019CV33-12VC ordering code denotes the standard (non-Pb-free) SOJ variant. For RoHS-compliant versions, use CY7C1019CV33-12ZC (TSOP II, Pb-free) or CY7C1019CV33-12VI (SOJ, Pb-free); the "VC" suffix indicates leaded finish per the Cypress ordering guide on page 7 of document 38-05130 Rev. *G.

How does the center power/ground pinout improve system-level noise immunity?

The symmetrical placement of VCC (pins 16, 31) and VSS (pins 15, 32) around the package center minimizes ground bounce and supply rail collapse during simultaneous I/O switching. This layout reduces peak ΔVSS by up to 40% compared to corner-fed SOJ packages, critical for maintaining signal integrity in mixed-signal industrial controllers.