Infineon Technologies CY7C1061DV33-10BVXIT

Overview

CY7C1061DV33-10BVXIT from Infineon Technologies is a 16-Mbit (1024K × 16) asynchronous static RAM (SRAM) with 3.3 V core voltage, 10 ns access time, and industrial temperature range (–40°C to +85°C). It features three-state outputs, byte-wide write control (UB/LB), and TTL-compatible inputs - deployed in real-time industrial controllers requiring deterministic memory access without refresh overhead.

For engineers reviewing the CY7C1061DV33-10BVXIT datasheet, CY7C1061DV33-10BVXIT pinout, CY7C1061DV33-10BVXIT application, or CY7C1061DV33-10BVXIT equivalent, key selection criteria include access time consistency under varying V_CC, low active power (120 mW typical at 10 ns), byte-level write granularity, and Pb-free, RoHS-compliant TQFP-56 packaging for high-density PCB layouts.

Technical Context

This SRAM operates in true asynchronous mode: address setup/hold times are independent of clock, and data is valid within 10 ns after address stabilization. It uses NMOS-compatible input thresholds and CMOS-compatible output drive strength (±24 mA), enabling direct interface with legacy microcontrollers and FPGAs without level-shifting.

The device implements full on-chip address decoding with CE1/CE2 chip enables and OE/WE controls, supporting both common- and separate-bus architectures. Byte write capability allows independent modification of upper or lower 8-bit lanes without read-modify-write cycles - critical for status register updates in safety-critical PLC I/O modules.

Key Specifications

Pinout & Package

Package: 56-pin Thin Quad Flat Package (TQFP), 10 mm × 10 mm, 0.5 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV102416AL-10TLI and AS6C1008-10TIN, CY7C1061DV33-10BVXIT uniquely combines industrial temperature rating, true byte-write capability, and TQFP-56 RoHS packaging - making it optimal for space-constrained, thermally demanding, and safety-aware embedded systems.

Availability

CY7C1061DV33-10BVXIT is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control units, medical imaging subsystems, and ruggedized network edge routers requiring stable component supply across long production lifecycles.

Supply support for CY7C1061DV33-10BVXIT 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.

CY7C1061DV33-10BVXIT belongs to Infineon's legacy Cypress SRAM product line, engineered specifically for deterministic, low-latency memory in industrial automation and automotive electronics where refresh-free operation and byte-granular writes are essential.

FAQ

Is CY7C1061DV33-10BVXIT pin-compatible with earlier CY7C1061 series variants?

Yes - it maintains identical pinout and electrical behavior with CY7C1061DV33-10ZSXI and CY7C1061DV33-10BGAXI, including identical TQFP-56 footprint, address/data mapping, and control signal timing. No PCB redesign is needed for drop-in replacement in existing designs.

Does this SRAM require external refresh circuitry?

No - CY7C1061DV33-10BVXIT is a true static RAM; it retains data indefinitely as long as V_CC is applied and does not require periodic refresh cycles, simplifying system design and eliminating refresh-induced jitter in real-time applications.

What is the maximum supported clock frequency for synchronous interface use?

This device has no clock input and is purely asynchronous - all timing is governed by address setup/hold, CE/OE/WE pulse widths, and access time. It does not support synchronous operation; any "clock" reference in system timing must derive from external controller logic, not the SRAM itself.

Can CY7C1061DV33-10BVXIT operate reliably at 3.0 V supply?

No - the absolute minimum V_CC is 3.0 V, but guaranteed 10 ns access time and full functionality are specified only at 3.3 V ± 0.3 V (i.e., 3.0–3.6 V). At exactly 3.0 V, access time degrades to 12 ns, and byte-write timing margins become marginal per datasheet AC characteristics.