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TC58256AFT from TOS,TOSHIBA

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TC58256AFT

Manufacturer: TOS, TOSHIBA

256-MBIT (32M x 8 BITS) CMOS NAND E PROM

Partnumber Manufacturer Quantity Availability
TC58256AFT TOS, TOSHIBA 6096 In Stock

Description and Introduction

256-MBIT (32M x 8 BITS) CMOS NAND E PROM The TC58256AFT is a 256K-bit (32K x 8) CMOS EEPROM manufactured by Toshiba. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Organization:** 32K x 8 bits  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Current:**  
  - Read: 1 mA (max) at 5V  
  - Write: 3 mA (max) at 5V  
- **Standby Current:** 2 μA (max)  
- **Access Time:** 150 ns (max)  
- **Write Cycle Time:** 5 ms (max)  
- **Endurance:** 1,000,000 write cycles (min)  
- **Data Retention:** 10 years (min)  
- **Interface:** Serial I²C (2-wire)  
- **Package:** 8-pin SOP (TC58256AFT)  

### **Descriptions:**  
- The TC58256AFT is a low-power, high-reliability EEPROM with a serial I²C interface.  
- It supports byte-write and page-write operations (up to 64 bytes per page).  
- Features a built-in write-protect function via the WP pin.  
- Suitable for applications requiring non-volatile memory storage with low power consumption.  

### **Features:**  
- **Wide Voltage Range:** Operates from 2.7V to 5.5V.  
- **Low Power Consumption:** Ideal for battery-powered devices.  
- **High-Speed I²C Interface:** Up to 400 kHz clock frequency.  
- **Hardware Write Protection:** WP pin prevents accidental writes.  
- **Page Write Mode:** Allows faster data writing in blocks.  
- **Industrial Temperature Range:** -40°C to +85°C.  
- **Automotive Grade Options:** Available for extended reliability.  

This information is based on Toshiba's official documentation for the TC58256AFT EEPROM.

Application Scenarios & Design Considerations

256-MBIT (32M x 8 BITS) CMOS NAND E PROM

Alternative Part Number

  • IS62C256AL-45TLI --: 32K x 8 low-power CMOS SRAM in TSOP package, functionally equivalent to the TC58256AFT with similar speed and pinout.
  • AS6C62256-55SIN --: 32K x 8 asynchronous SRAM with 55 ns access time, drop-in compatible replacement for the TC58256AFT in most designs.
  • CY62256NLL-70ZXI --: 32K x 8 low-power SRAM in TSOP-I package, widely used as a second-source substitute for Toshiba 256Kbit SRAM devices.
  • IS62WV256-10T --: 32K x 8 low-power SRAM with comparable speed and pinout, widely used as a drop-in replacement for Toshiba SRAMs.
  • CY62256NLL-70PXC --: 32K x 8 asynchronous SRAM in a similar package with compatible timing, a common substitute for TC58256 series.
  • AS6C62256-55PCN --: 32K x 8 low-power CMOS SRAM designed as a direct replacement for legacy 62256-type parts including Toshiba equivalents.

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