Infineon Technologies CY7C1069AV33-10ZXIT

Overview

CY7C1069AV33-10ZXIT from Cypress Semiconductor is a 2,097,152 × 8-bit (2 M × 8) asynchronous CMOS static RAM with 10 ns access time, 3.3 V ±0.3 V operation, TTL-compatible I/O, and dual chip enable (CE1/CE2) for flexible memory expansion. It supports automatic power-down when deselected and retains data at 2.0 V, making it suitable for industrial embedded systems requiring fast, low-power, non-volatile SRAM buffering.

For engineers reviewing the CY7C1069AV33-10ZXIT datasheet, CY7C1069AV33-10ZXIT pinout, CY7C1069AV33-10ZXIT application, or CY7C1069AV33-10ZXIT equivalent, key selection criteria include tAA ≤ 10 ns read timing, ISB2 ≤ 50 mA standby current, CE1/CE2 decode logic compatibility, and TSOP II package pinout validation for PCB layout and signal integrity.

Technical Context

The CY7C1069AV33-10ZXIT implements a fully decoded 21-bit address space (A0–A20) driving a 2 M × 8 memory array with separate row/column decoders and sense amplifiers. Its dual CE architecture allows hierarchical memory mapping: CE1 active-low and CE2 active-high must both be asserted for read/write access, enabling bank selection in multi-chip systems.

Read operations require OE LOW and WE HIGH while CE1/CE2 are enabled; write operations require WE LOW and valid input data stable before tSD (5.5 ns min). Outputs enter high-impedance state during deselect (CE1 HIGH or CE2 LOW), OE HIGH, or write cycles-ensuring clean bus sharing without external tri-state logic.

Key Specifications

Pinout & Package

Package: 54-pin TSOP II (Thin Small Outline Package, Type II) with center power/ground pinout (Revolutionary pinout per datasheet), Pb-free, industrial temperature grade.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV204816AL-10MLI and MC14LC5480DWR2, the CY7C1069AV33-10ZXIT uniquely delivers 2 M × 8 organization with dual CE decode, 10 ns timing, and 2.0 V data retention in an industrial-grade TSOP II package - optimizing for deterministic real-time buffering in space-constrained 3.3 V embedded systems.

Availability

CY7C1069AV33-10ZXIT is available at Aetrix Electronics and suitable for industrial PLC data buffering, medical imaging frame store, and avionics sensor log memory requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY7C1069AV33-10ZXIT 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 high-performance memory, PSoC, USB, and clock solutions for industrial, automotive, and communications markets.

The CY7C1069AV33 belongs to Cypress's high-speed asynchronous SRAM product line, engineered for deterministic, low-latency data buffering in real-time embedded systems where power efficiency and industrial reliability are critical.

FAQ

What is the maximum operating current for CY7C1069AV33-10ZXIT under full-speed read conditions?

The maximum VCC operating supply current (ICC) is 275 mA at VCC = 3.6 V and f = 1/tRC (100 MHz), measured with all inputs driven and outputs loaded per AC test conditions. This value reflects worst-case dynamic power during continuous read cycling and excludes transient startup current.

Can CY7C1069AV33-10ZXIT operate with only CE1 asserted and CE2 floating?

No. CE2 must be actively driven HIGH for device selection; floating CE2 violates the truth table requirement for valid read/write operation. The datasheet specifies CE2 < VIL for power-down and CE2 > VIH for enable - undefined behavior occurs if CE2 is left unconnected.

Does the 2.0 V data retention specification require external circuitry?

Yes. To maintain data at 2.0 V, the VCC supply must be actively regulated or backed up (e.g., via supercapacitor or coin cell) to sustain ≥2.0 V during main power loss. The device draws ≤50 µA in retention mode, but no internal charge pump or backup regulator is integrated.

Is the 54-pin TSOP II package of CY7C1069AV33-10ZXIT pin-compatible with CY7C1069DV33-10ZI?

Yes - both share identical 54-pin TSOP II mechanical footprint and pinout (51-85160), including center VCC/VSS arrangement. However, the DV33 variant uses different internal timing and may exhibit distinct tHZOE/tLZWE values; electrical substitution requires validation against system timing margins.