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IS61C256AH-12JI from ICSI

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IS61C256AH-12JI

Manufacturer: ICSI, ISSI

32K x 8 HIGH-SPEED CMOS STATIC RAM

Partnumber Manufacturer Quantity Availability
IS61C256AH-12JI,IS61C256AH12JI ICSI, ISSI 1250 In Stock

Description and Introduction

32K x 8 HIGH-SPEED CMOS STATIC RAM The IS61C256AH-12JI is a high-speed CMOS static RAM (SRAM) manufactured by ICSI (Integrated Circuit Solution Inc.). Below are the key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Memory Size:** 256K (32K x 8-bit)  
- **Technology:** High-speed CMOS  
- **Access Time:** 12 ns  
- **Operating Voltage:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C (Industrial Grade)  
- **Package:** 28-pin PLCC (Plastic Leaded Chip Carrier)  
- **I/O Type:** Common I/O (Input/Output)  
- **Power Consumption:**  
  - Active Current: 80 mA (typical)  
  - Standby Current: 10 mA (typical)  
- **Three-State Outputs:** Yes  
- **Data Retention Voltage:** 2V (minimum)  

### **Descriptions:**
- The IS61C256AH-12JI is a low-power, high-performance SRAM designed for applications requiring fast access times and reliable data storage.  
- It is commonly used in embedded systems, networking equipment, telecommunications, and industrial applications.  
- The device features a fully static operation, meaning no refresh cycles are required.  

### **Features:**
- **High-Speed Access:** 12 ns access time for fast read/write operations.  
- **Low Power Consumption:** Optimized for both active and standby modes.  
- **Wide Voltage Range:** Operates from 4.5V to 5.5V, compatible with standard 5V systems.  
- **Industrial Temperature Range:** Suitable for harsh environments (-40°C to +85°C).  
- **Three-State Outputs:** Allows easy interfacing with common bus systems.  
- **Reliable Data Retention:** Maintains data integrity even at low voltages (2V minimum).  

This information is based strictly on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

32K x 8 HIGH-SPEED CMOS STATIC RAM

Alternative Part Number

  • CY7C199-12VC --: 32K x 8 asynchronous SRAM with comparable 12 ns access time and 5V operation, widely available and pin-compatible in the same SOJ package family.
  • AS7C256-12JC --: Direct 32K x 8 SRAM replacement series often used to substitute IS61C256 devices, matching speed grade and JEDEC pinout.
  • HM62256BLP-12 --: Classic 32K x 8 low-power SRAM with 12 ns access time, electrically and functionally equivalent for most drop-in applications.
  • AS7C256A-12JCN --: 32K x 8 high-speed CMOS SRAM, 12 ns speed grade, JEDEC-standard pinout and package compatible with the IS61C256AH-12JI, often used as a direct second-source substitute.
  • HM62256BLFP-12 --: 32K x 8 low-power CMOS SRAM with 12 ns access time and compatible pinout, a well-established alternative when the ISSI part is unavailable.

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