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CY62148EV30LL-45ZSXI

IFXCY62148EV30LL-45ZSXI

Infineon Technologies
SRAM - Asynchronous Memory IC 4Mbit Parallel 45 ns 32-TSOP II
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Overview

The CY62148EV30LL-45ZSXI is a high-performance, 4-Mbit asynchronous CMOS static RAM organized as 512K words by 8 bits. It operates within a wide voltage range of 2.2V to 3.6V and features an ultra-low standby current of 2.5 uA, making it ideal for battery-backed and portable systems. The device employs a 45 ns access time and is housed in a 32-pin TSOP II package for space-constrained surface-mount designs.

Why Choose This Part

This SRAM offers a MoBL (More Battery Life) power profile, drawing only 3.5 mA at 1 MHz and 2.5 uA in standby. Its asynchronous design simplifies timing requirements for engineers, as it does not require a clock signal for operation. The wide supply range of 2.2V to 3.6V allows it to interface directly with modern low-voltage MCUs and FPGAs.

Applications

Battery-Backed Systems
Used as non-volatile storage when paired with a small battery or supercapacitor due to its extremely low standby current.
Industrial Embedded Controllers
Provides fast, deterministic workspace memory for microcontrollers without the refresh overhead associated with DRAM.
Communication Equipment
Acts as a high-speed buffer for data packets in networking hardware requiring parallel interface speeds.
Handheld Devices
Optimized for portable electronics where low power consumption during operation (15 mA at maximum frequency) is critical.

Key Specifications

Technology SRAM - Asynchronous
Access Time 45 ns
Memory Size 4Mbit
Memory Type Volatile
Memory Format SRAM
Mounting Type Surface Mount
Package / Case 32-SOIC (0.400", 10.16mm Width)
Memory Interface Parallel
Voltage - Supply 2.2V ~ 3.6V
Memory Organization 512K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 32-TSOP II
Write Cycle Time - Word, Page 45ns

Getting Started

To integrate this memory, connect the 19-bit address bus, 8-bit data bus, and control lines (CE, OE, WE) to your microcontroller or FPGA parallel bus. Ensure proper decoupling with a 0.1 uF ceramic capacitor near the VCC pin and follow the 45 ns timing diagrams for read and write cycles provided in the datasheet. No specialized software toolchain is required as it functions as standard parallel-mapped memory.