25LC256 / 25LCxxx SPI Serial EEPROM Family
SPI Serial EEPROM family (25LC010A–25LC1024), 1.8–5.5V, DIP-8/SOIC-8/TSSOP-8. Pinout identical across the family.
Aliase:25LC256, 25LC512, 25AA256, SPI EEPROM
DIP-8 Top View
8 Pins
Pinout Table8
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | CS | Digital | SPI Chip Select (Active Low) |
| 2 | SO | Digital | SPI Serial Output (MISO) |
| 3 | WP | Digital | Write Protect (Active Low — pull HIGH to enable writes) |
| 4 | GND | Ground | System Ground (0V) |
| 5 | SI | Digital | SPI Serial Input (MOSI) |
| 6 | SCK | Digital | SPI Serial Clock |
| 7 | HOLD | Digital | Hold / Pause SPI Communication (Active Low) |
| 8 | VCC | Power | Positive Power Supply (1.8–5.5V) |