AT28C010-12DK_09 Datasheet, PDF (11/19 Pages) ATMEL Corporation – Space 1-megabit (128K x 8) Paged Parallel EEPROMs

Chip Erase Waveforms
AT28C010-12DK
t_S = 5 msec (min.)
t_W = t_H = 10 msec (min.)
V_H = 12.0V ± 0.5V
Software Data
Figure 1. Protection Enable Algorithm⁽¹⁾
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
WRITES ENABLED⁽²⁾
LOAD DATA XX
TO
ANY ADDRESS⁽³⁾
LOAD LAST BYTE
TO
LAST ADDRESS
ENTER DATA
PROTECT STATE
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Write Protect state will be activated at end of write even if no other data is loaded.
3. 1 to 128 bytes of data are loaded.
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4259D–AERO–10/09