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IC62C256-70UI from ICSI

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IC62C256-70UI

Manufacturer: ICSI, ISSI

32K X 8 LOW POWER CMOS STATIC RAM

Partnumber Manufacturer Quantity Availability
IC62C256-70UI,IC62C25670UI ICSI, ISSI 335 In Stock

Description and Introduction

32K X 8 LOW POWER CMOS STATIC RAM The IC62C256-70UI is a 32K x 8-bit (256Kbit) CMOS Static RAM (SRAM) manufactured by ISSI (Integrated Silicon Solution, Inc.). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Density:** 256Kbit (32K x 8-bit)  
- **Organization:** 32,768 words × 8 bits  
- **Access Time:** 70ns  
- **Operating Voltage:** 5V ±10%  
- **Operating Temperature Range:** -40°C to +85°C (Industrial)  
- **Package Type:** 28-pin SOIC (UI)  
- **Interface:** Parallel  
- **Standby Current (Typical):** 10µA (CMOS standby)  
- **Operating Current (Typical):** 40mA (at 70ns access time)  
- **Data Retention Voltage:** 2V (min)  
- **Tri-State Outputs:** Yes  

### **Descriptions:**  
- **Technology:** High-speed CMOS  
- **Functionality:** Fully static operation (no clock or refresh required)  
- **Pin Compatibility:** Industry-standard 28-pin SRAM pinout  
- **Applications:** Embedded systems, industrial controls, networking equipment, and battery-backed memory applications  

### **Features:**  
- **Low Power Consumption:**  
  - Active current: 40mA (max)  
  - Standby current: 10µA (typical, CMOS mode)  
- **Wide Voltage Range:** 4.5V to 5.5V  
- **Fully Static Design:** No refresh cycles needed  
- **Easy Memory Expansion:** Common I/O for simplified system design  
- **High Reliability:** Industrial-grade temperature range  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels  

This SRAM is designed for applications requiring fast, low-power, and reliable non-volatile memory solutions.

Application Scenarios & Design Considerations

32K X 8 LOW POWER CMOS STATIC RAM

Alternative Part Number

  • IS62C256AL-45ULI --: Same 32Kx8 low-power CMOS SRAM function and pinout, widely available from ISSI with equivalent or faster 45ns access time.
  • CY62256NLL-70ZXI --: Industry-standard 32Kx8 low-power SRAM with 70ns speed matching the original, compatible pinout and industrial temperature range.
  • AS6C62256-55SIN --: Drop-in 32Kx8 low-power SRAM replacement with 55ns access time, commonly used as a second source for 62256-type devices.
  • IS62C256AL-45TLI --: Same ISSI 32K x 8 asynchronous SRAM family with compatible pinout and function; faster 45ns speed grade safely replaces the 70ns part.

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