AK93C45B Datasheet, PDF (7/14 Pages) Asahi Kasei Microsystems – 1K / 2K / 4K / 8KBIT SERIAL CMOS EEPROM

ASAHI KASEI
[AK93C45B/55B/65B/75B]
EWEN / EWDS
When Vcc is applied to the part, the part automatically powers up in the ERASE/WRITE Disable state. In the
ERASE/WRITE disable state, execution of WRITE instruction is disable. Before WRITE instruction is
executed, EWEN instruction must be executed. The ERASE/WRITE enable state continues until EWDS
instruction is executed or Vcc is removed from the part.
Execution of a read instruction is independent of both EWEN and EWDS instructions.
EWEN/EWDS (AK93C45B)
EWEN/EWDS (AK93C55B/65B)
EWEN/EWDS (AK93C75B)
DAM04E-01
-7-
1999/10