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TC55257CFI-10L from TOSHIBA

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TC55257CFI-10L

Manufacturer: TOSHIBA, TOS

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

Partnumber Manufacturer Quantity Availability
TC55257CFI-10L,TC55257CFI10L TOSHIBA, TOS 5563 In Stock

Description and Introduction

SILICON GATE CMOS 32,768 WORD x 8 BIT STATIC RAM The **TC55257CFI-10L** is a **32K x 8-bit CMOS Static RAM (SRAM)** manufactured by **Toshiba**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 32K × 8-bit  
- **Supply Voltage:** 5V ±10%  
- **Access Time:** 10 ns  
- **Operating Current:** 40 mA (max)  
- **Standby Current:** 1 mA (max)  
- **Package:** 28-pin **SOJ (Small Outline J-Lead)**  
- **Operating Temperature Range:** 0°C to +70°C  
- **Data Retention Voltage:** 2V (min)  

### **Descriptions:**
- **High-Speed Operation:** Fast access time of **10 ns** for high-performance applications.  
- **Low Power Consumption:** CMOS technology ensures low standby current.  
- **Wide Operating Voltage:** Supports **4.5V to 5.5V** operation.  
- **Fully Static:** No clock or refresh required.  
- **Tri-State Output:** Allows bus sharing in multi-master systems.  

### **Features:**
- **Single 5V Power Supply**  
- **TTL-Compatible Inputs/Outputs**  
- **Common I/O Structure**  
- **Battery Backup Capability** (with data retention at reduced voltage)  
- **Industrial Standard Pinout** (compatible with other 32K × 8 SRAMs)  

This SRAM is suitable for **high-speed cache, buffer memory, and embedded systems** requiring fast and reliable static memory.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • IS62C256AL-45ULI --: 32K x 8 low-power CMOS SRAM with similar 5V-compatible interface and access time, direct functional replacement for the TC55257 series.
  • AS6C62256-55SIN --: 32K x 8 low-power SRAM in the same density and pinout family, commonly used as a drop-in substitute for Toshiba TC55257 devices.
  • CY62256NLL-70SNXI --: Well-established 32K x 8 low-power SRAM with compatible pinout and timing, suitable as an alternative when the Toshiba part is unavailable.

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