The X28C256 is a 32K x 8 E2PROM manufactured by Xicor using their proprietary high performance floating gate CMOS technology. Like all Xicor programmable nonvolatile memories, the X28C256 is a 5V only device.
The Xicor X28C256 is a 32K x 8-bit E2PROM fabricated with proprietary high-performance floating gate CMOS technology. It operates on a single 5V supply without the need for external high voltages or Vpp control circuits, making it compatible with industry-standard RAMs.
The device supports simple byte and page write operations, allowing the entire memory to be written in less than 2.5 seconds. Key features include early end-of-write detection via DATA Polling and a Toggle Bit, as well as both hardware and software data protection modes to prevent inadvertent writes.
| Memory Size | 32K x 8 Bit |
|---|---|
| Supply Voltage | Single 5V Supply |
| Access Time | 200ns |
| Active Power Consumption | 60mA |
| Standby Current | 200uA |
| Write Endurance | 100,000 Write Cycles |
| Data Retention | 100 Years |
No, it operates with a single 5V supply and requires no external high voltages or Vpp control circuits.
The entire memory can typically be written in less than 2.5 seconds using page write capability.