Programming algorithm, Software protected program cycle waveforms, Software protected write characteristics – Rainbow Electronics DOC0395 User Manual
Page 7
AT28LV010
7
Programming Algorithm
Notes:
1.
Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2.
Data protect state will be re-activated at the end of
program cycle.
3.
1 to 128 bytes of data are loaded.
Software Protected Program Cycle Waveforms
(1)(2)(3)
Notes:
1.
A0 - A14 must conform to the addressing sequence for the first three bytes as shown above.
2.
After the command sequence has been issued and a page write operation follows, the page address inputs (A7 - A16) must
be the same for each high to low transition of WE (or CE).
3.
OE must be high only when WE and CE are both low.
Software Protected Write Characteristics
Symbol
Parameter
Min
Max
Units
t
WC
Write Cycle Time
10
ms
t
AS
Address Set-up Time
0
ns
t
AH
Address Hold Time
100
ns
t
DS
Data Set-up Time
100
ns
t
DH
Data Hold Time
10
ns
t
WP
Write Pulse Width
200
ns
t
BLC
Byte Load Cycle Time
150
µ
s
t
WPH
Write Pulse Width High
100
ns
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
LOAD DATA XX
TO
ANY ADDRESS
(3)
LOAD LAST BYTE
TO
LAST ADDRESS
(3)
ENTER DATA
PROTECT STATE
WRITES ENABLED
(2)