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TC55257CPL-85 from TOSHIBA

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TC55257CPL-85

Manufacturer: TOSHIBA

SILICON GATE CMOS 32,768 WORD x 8 BIT STATIC RAM

Partnumber Manufacturer Quantity Availability
TC55257CPL-85,TC55257CPL85 TOSHIBA 3596 In Stock

Description and Introduction

SILICON GATE CMOS 32,768 WORD x 8 BIT STATIC RAM The TC55257CPL-85 is a 256K-bit (32K x 8) high-speed static random-access memory (SRAM) manufactured by Toshiba.  

### **Specifications:**  
- **Organization:** 32K x 8 bits  
- **Access Time:** 85 ns  
- **Operating Voltage:** 5V ± 10%  
- **Power Consumption:**  
  - Active: 400 mW (max)  
  - Standby: 5 mW (max)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 600-mil 28-pin plastic DIP (Dual In-line Package)  
- **Pin Configuration:** Compatible with industry-standard 28-pin SRAMs  
- **Data Retention Voltage:** 2V (min)  

### **Descriptions & Features:**  
- **High-Speed Operation:** 85 ns access time for fast read/write operations.  
- **Low Power Consumption:** Features both active and standby modes for power efficiency.  
- **CMOS Technology:** Ensures low power dissipation and high noise immunity.  
- **Fully Static Operation:** No clock or refresh required.  
- **TTL-Compatible Inputs/Outputs:** Ensures easy interfacing with TTL logic circuits.  
- **Tri-State Output:** Allows bus sharing in multi-device systems.  
- **Wide Operating Voltage:** Supports 5V ± 10% for stable performance.  
- **Industry-Standard Pinout:** Compatible with other 32K x 8 SRAMs.  

This SRAM is commonly used in embedded systems, industrial controls, and other applications requiring fast, low-power memory.

Application Scenarios & Design Considerations

SILICON GATE CMOS 32,768 WORD x 8 BIT STATIC RAM

Alternative Part Number

  • HM62256CLP-85 --: 32K x 8 low-power CMOS SRAM with 85 ns access time, pin-compatible with the TC55257 in a 28-pin DIP package.
  • CY62256LL-70PC --: 32K x 8 low-power SRAM in a 28-pin DIP, 70 ns speed meets or exceeds the 85 ns requirement and is a widely available drop-in replacement.
  • IS62C256AL-45TLI --: 32K x 8 low-power CMOS SRAM with 45 ns access time, pin-compatible DIP/TSSOP option and a common modern substitute for legacy 62256-type parts.

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