CYPRESS CY7C1031-12JC

Mfr. Part

CY7C1031-12JC

Manufacturer

Cypress Semiconductor

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Detailed Description

High-speed CMOS asynchronous SRAM

Organization: 128K x 8 (1 Mbit), fast random-access memory for buffers and caches

Access time: 12 ns speed grade

Voltage: 5 V CMOS interface, TTL-compatible I/O

Temperature: Commercial range (C): 0°C to +70°C

Package: SOJ-32 J-lead, compact through-hole-like footprint for surface mount

Category: Integrated Circuits (ICs) / Specialized ICs

Inventory: 1433 units available

Provided traceability: Data Code 0029+/0124+

Provided listing info: Package/Case code 1607

Key Features

12 ns read access for fast system response

Single 5 V power supply, simple design-in

CE, OE, WE control pins with tri-stated outputs

Low standby power, CMOS process

TTL-compatible inputs and outputs

Byte-wide 8-bit data bus for easy microcontroller/ASIC interfacing

Proven Cypress SRAM reliability

Key Advantages

Drop-in friendly fast SRAM for legacy and mature designs

Simple timing, no refresh required (static memory)

Stable performance across commercial temperature range

Long field history and robust process maturity

Reduces design complexity compared with DRAM

Ideal for time-critical read/write operations

Packaging

Type: SOJ-32 (J-lead), surface-mount

Material: Molded epoxy package with copper leadframe, standard industry plating

Size: 300 mil body width (approx 7.6 mm), typical SOJ-32 footprint; compact height suitable for dense boards

Pin configuration: 32 pins total

- Address lines A0–A16 (typical for 128K x 8)

- Data I/O pins DQ0–DQ7

- Control pins CE, OE, WE

- Power pins VCC and GND

Thermal characteristics: Operates 0°C to +70°C (commercial); typical board-level thermal resistance depends on layout and airflow; follow datasheet guidelines for thermal derating

Electrical properties (typical for fast 5 V SRAM)

- VCC 5 V ±10%

- 12 ns read/write cycle timing

- CMOS standby currents with tri-stated outputs when CE inactive

- TTL-compatible input thresholds and strong output drive

Supplied info for traceability and logistics

- Package/Case code: 1607

- Data Codes: 0029+, 0124+

- Shipment format: Typically tray or tube for SOJ-32; tape-and-reel option varies by lot (confirm with sales)

Lifecycle

Status: Mature product; many fast 5 V SOJ SRAMs have limited new production and may be NRND or EOL depending on lot and supplier

Direct family variants commonly used as equivalents (verify pinout and timing):

- CY7C1031-10JC (same family, faster 10 ns)

- CY7C1031-15JC (same family, 15 ns)

- CY7C1031-12JX or -12JI (same family, different temperature grades if available)

Close functional alternatives within Cypress fast SRAM families (check density, voltage, and pinout before use):

- CY7C1019 series (fast 5 V 128K x 8 SRAM, similar control signals; pinout may vary by package)

Third-party pin-compatible fast 5 V SRAMs in SOJ-32 may be available from established memory vendors (ISSI, Alliance Memory, GSI Technology). Because pinouts and timing vary by vendor and density, please contact Y-IC for a verified cross-reference and drop-in guidance.

If you need a confirmed equivalent or alternative list matched to your exact speed, density, package, and temperature requirements, please contact our sales team via the Y-IC website for expert assistance.

Key Application Areas

CPU/cache buffers and scratchpad memory

Networking and telecom cards

Industrial control and PLCs

Printers, scanners, copiers

Set-top boxes and broadcast equipment

Test and measurement instruments

Embedded controllers and legacy system maintenance

Datasheet

Y-IC hosts the most authoritative and up-to-date datasheet for CY7C1031-12JC on our product page. For accurate electrical specs, timing diagrams, pinouts, and mechanical drawings, download the datasheet from our website now.

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