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TC55257DFI-70L from TOSH,TOSHIBA

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TC55257DFI-70L

Manufacturer: TOSH

32,768 WORD x 8 BIT STATIC RAM

Partnumber Manufacturer Quantity Availability
TC55257DFI-70L,TC55257DFI70L TOSH 60 In Stock

Description and Introduction

32,768 WORD x 8 BIT STATIC RAM The TC55257DFI-70L is a 262,144-word by 1-bit Static RAM (SRAM) manufactured by Toshiba. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Organization:** 262,144 words × 1 bit  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 70ns (max)  
- **Operating Current:** 35mA (max)  
- **Standby Current:** 5μA (max)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin SOP (Small Outline Package)  

### **Descriptions:**  
- High-speed CMOS SRAM with a common I/O structure.  
- Fully static operation, no clock or refresh required.  
- Low power consumption in both active and standby modes.  
- Compatible with TTL levels for easy interfacing.  

### **Features:**  
- **Single Power Supply:** Operates at 5V.  
- **Three-State Output:** Allows bus-oriented applications.  
- **Data Retention:** Guaranteed in standby mode with reduced voltage (2V).  
- **Wide Temperature Range:** Suitable for industrial applications.  

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

Application Scenarios & Design Considerations

32,768 WORD x 8 BIT STATIC RAM

Alternative Part Number

  • IS62C256AL-45ULI --: 32K x 8 low-power CMOS SRAM with similar 28-pin pinout and 5V operation; widely available and often used as a drop-in replacement for Toshiba 32Kx8 SRAMs.
  • AS6C62256-55PCN --: 32K x 8 low-power SRAM in DIP package with 5V supply and comparable access time, designed as a direct replacement for legacy 62256-type SRAMs.
  • CY62256NLL-70PXC --: 32K x 8 low-power SRAM with 70ns access time and 5V operation, matching the speed grade and memory organization of the original part.

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