nm93c56 Fairchild Semiconductor, nm93c56 Datasheet - Page 10

• Manufacturer Part Number: nm93c56
• Description: 2048-bit Serial Cmos Eeprom Microwire ?ynchronous Bus
• Manufacturer: Fairchild Semiconductor

NM93C56 Rev. E
ERASE CYCLE (ERASE)
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 )
ERASE ALL CYCLE (ERAL)
CS
SK
DI
DO
93C56:
Address bits patter n -> 1-0-x-x-x-x-x-x
CLEARING READY STATUS
CS
SK
DI
DO
Note: This Star t bit can also be par t of a next instr uction. Hence the cycle
can be continued (instead of getting ter minated, as shown) as if a new
instr uction is being issued.
(Continued)
High - Z
S t a r t
B i t
Star t
Bit
1
1
O p c o d e
B i t s ( 2 )
Opcode
Bits(2)
1
1
Busy
1
1
High - Z
High - Z
; (x -> Don't Care, can be 0 or 1)
A7
A7
A6
A6
A d d r e s s
B i t s ( 8 )
Address
Bits(8)
Ready
A1
A1
Star t
Bit
A0
A0
High - Z
t
t
CS
CS
t
t
WP
WP
Busy
Busy
Ready
Ready
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