| Density | 128K |
| Interface Type | 2-WIRE |
| Organization | 16,384 x 8 |
| Vcc (V) | 1.8 |
| Pb-Free Packages |
PDIP 8 UDFN 8 UDFN 8 SOIC 8 TSSOP 8 dBGA2 8 |
128Kbit, 2-Wire Bus Serial EEPROM with full memory Write Protect, supports up to 8 devices on single 2-Wire bus.
The AT24C128B provides 131,072 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 16,384 words of 8 bits each. The device’s cascadable feature allows up to eight devices to share a common two-wire bus. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini MAP, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball dBGA2 packages. In addition, the entire family is available in a 1.8V (5.5V to 3.6V) version.
| Ordering Code | Package | Voltage Range |
Operation Range |
| AT24C128B-PU | 8P3 | 1.8V | Lead-free/Halogen-free/ Industrial Temperature (–40°C to 85°C) |
| AT24C128BN-SH-B | 8S1 | 1.8V | |
| AT24C128BN-SH-T | 8S1 | 1.8V | |
| AT24C128B-TH-B | 8A2 | 1.8V | |
| AT24C128B-TH-T | 8A2 | 1.8V | |
| AT24C128BY6-YH-T | 8Y6 | 1.8V | |
| AT24C128BD3-DH-T | 8D3 | 1.8V | |
| AT24C128BU2-UU-T | 8U2-1 | 1.8V |