View 25c16 datasheet:

Standard EEPROM ICs SLx 25C160 16 Kbit (2048 ? 8 bit) Serial CMOS-EEPROM with Serial Peripheral Interface (SPI) Synchronous Bus Data Sheet Preliminary 1999-03-15 SLx 25C160 Revision History: Current Version: Preliminary 1999-03-15 Previous Version: 199-02-02 Page Page Subjects (major changes since last revision) (in previous (in current Version) Version) 23 23 Text changed to “The write or erase cycle is finished after 2.5 ms (typical)” 14 14 Figure 7 has changed 19 19 Figure 11 has changed Page Protection Mode™ is a trademark of Siemens AG. Edition Preliminary 1999-03-15 Published by Siemens AG, Bereich Halbleiter, Marketing- Kommunikation, Balanstra?e 73, 81541 Munchen © Siemens AG 1999. All Rights Reserved. Attention please! As far as patents or other rights