nm93c56 Fairchild Semiconductor, nm93c56 Datasheet - Page 8
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nm93c56
Manufacturer Part Number
nm93c56
Description
2048-bit Serial Cmos Eeprom Microwire ?ynchronous Bus
Manufacturer
Fairchild Semiconductor
Datasheet
1.NM93C56.pdf
(13 pages)
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NM93C56 Rev. E
SYNCHRONOUS DATA TIMING
CS
SK
DI
DO (Data Read)
DO (Status Read)
READ CYCLE (READ)
CS
SK
DI
DO
9 3 C 5 6 :
A d d r e s s b i t s p a t t e r n - > 0 - A 6 - A 5 - A 4 - A 3 - A 2 - A 1 - A 0 ; ( A 6 - A 0 - > U s e r d e f i n e d )
WRITE ENABLE CYCLE (WEN)
CS
SK
DI
DO
9 3 C 5 6 :
A d d r e s s b i t s p a t t e r n - > 1 - 1 - x - x - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 )
t
SKS
S t a r t
B i t
1
S t a r t
B i t
1
t
CSS
t
O p c o d e
Bits(2)
DIS
1
t
Valid
Input
SV
O p c o d e
B i t s ( 2 )
0
0
t
DIH
High - Z
0
t
SKH
A7
t
A7
PD
A6
A d d r e s s
Bits(8)
A6
A d d r e s s
B i t s ( 8 )
t
SKL
Output
Valid
A1
Valid
Input
A1
t
DH
A0
D u m my
B i t
A0
High - Z
0
t
D15
PD
t
CS
Valid Status
D1
Output
Valid
D0
t
CS
t
CSH
t
t
DF
DF
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