fm93cs56 Fairchild Semiconductor, fm93cs56 Datasheet - Page 10

• Manufacturer Part Number: fm93cs56
• Description: Microwire ? Bus Interface 2048-bit Serial Eeprom With Data Protect And Sequential Read
• Manufacturer: Fairchild Semiconductor

FM93CS56 Rev. C.1
WRITE DISABLE CYCLE (WDS)
PRE
PE
CS
SK
DI
DO
93CS56:
Address bits patter n -> 0-0-x-x-x-x-x-x; (x -> Don't Care, can be 0 or 1)
WRITE ENABLE CYCLE (WEN)
PRE
PE
CS
SK
DI
DO
9 3 C S 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 )
WRITE CYCLE (WRITE)
PRE
PE
CS
SK
DI
DO
9 3 C S 5 6 :
A d d r e s s b i t s p a t t e r n - > x - A 6 - A 5 - A 4 - A 3 - A 2 - A 1 - A 0 ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 ) ; ( A 6 - A 0 - > U s e r d e f i n e d )
D a t a b i t s p a t t e r n
(Continued)
Star t
Bit
S t a r t
B i t
1
1
S t a r t
B i t
1
- > U s e r d e f i n e d
Opcode
Bits(2)
0
O p c o d e
B i t s ( 2 )
0
O p c o d e
B i t s ( 2 )
0
0
0
1
A7
A7
A7
A6
A6
Address
Bits(8)
A6
A d d r e s s
B i t s ( 8 )
A d d r e s s
B i t s ( 8 )
A1
A1
A1
A0
A0
High - Z
High - Z
A0
High - Z
t
t
CS
CS
D15 D14
D a t a
B i t s ( 1 6 )
D1
D0
t
CS
t
WP
Busy
Ready
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