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TMS4256 from TI,Texas Instruments

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TMS4256

Manufacturer: TI

262,144-BIT DYNAMIC RANDOM-ACCESS MEMORIES

Partnumber Manufacturer Quantity Availability
TMS4256 TI 1000 In Stock

Description and Introduction

262,144-BIT DYNAMIC RANDOM-ACCESS MEMORIES The TMS4256 is a dynamic RAM (DRAM) chip manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Type:** 256K (262,144-bit) Dynamic RAM  
- **Organization:** 64K x 4 bits  
- **Access Time:** Typically 150 ns  
- **Operating Voltage:** +5V ±10%  
- **Refresh Cycles:** 512 cycles every 8 ms (distributed or burst refresh)  
- **Package:** 16-pin DIP (Dual In-line Package)  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  

### **Descriptions:**  
- The TMS4256 is a high-density, low-power DRAM designed for use in memory systems requiring fast access times.  
- It uses a multiplexed address scheme (8 address lines for row and column addressing).  
- The chip requires periodic refreshing to retain data.  

### **Features:**  
- **Low Power Consumption:** Operates in both active and standby modes with reduced power usage.  
- **Single +5V Supply:** Simplifies system power requirements.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **Multiplexed Addressing:** Reduces pin count by sharing address lines.  
- **CAS (Column Address Strobe) Before RAS (Row Address Strobe) Refresh:** Supports standard refresh methods.  

This information is based solely on the documented specifications of the TMS4256 by Texas Instruments.

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