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HT25LC512 from HT

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HT25LC512

Manufacturer: HT, HOLTEK

CMOS 64K x 8-Bit SPI Serial OTP EPROM

Partnumber Manufacturer Quantity Availability
HT25LC512 HT, HOLTEK 357820 In Stock

Description and Introduction

CMOS 64K x 8-Bit SPI Serial OTP EPROM The HT25LC512 is a 512-Kbit (64K x 8) serial electrically erasable programmable read-only memory (EEPROM) manufactured by Holtek. Here are its key specifications:

- **Memory Capacity**: 512 Kbit (64K x 8)  
- **Interface**: SPI (Serial Peripheral Interface)  
- **Operating Voltage**: 2.5V to 5.5V  
- **Operating Temperature Range**: -40°C to +85°C  
- **Write Cycle Endurance**: 1,000,000 cycles (typical)  
- **Data Retention**: 100 years (typical)  
- **Page Size**: 128 bytes  
- **Clock Frequency**: Up to 10 MHz (at 5V)  
- **Package Options**: 8-pin SOP, DIP, and TSSOP  

Additional features include:
- Software and hardware write protection  
- Sequential read operation  
- Self-timed write cycle  

For exact details, refer to the official HT25LC512 datasheet from Holtek.

Application Scenarios & Design Considerations

CMOS 64K x 8-Bit SPI Serial OTP EPROM

Alternative Part Number

  • M95256-WMN6TP --: SPI EEPROM with 256 Kbit density and similar serial interface, widely available and pin-compatible in many designs.
  • 25LC256-I/SN --: Industry-standard SPI EEPROM in the same 256 Kbit class, well documented and easy to source as a drop-in replacement.
  • CAT25256VI-GT3 --: 256 Kbit SPI EEPROM with comparable voltage range and timing, offering a second-source option for the original part.

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