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M93C46 数据表(PDF) 13 Page - STMicroelectronics

部件名 M93C46
功能描述  16 Kbit, 8 Kbit, 4 Kbit, 2 Kbit and 1 Kbit (8-bit or 16-bit wide)
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M93C46 数据表(HTML) 13 Page - STMicroelectronics

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M93C86, M93C76, M93C66, M93C56, M93C46
Instructions
Doc ID 4997 Rev 10
13/37
Table 6.
Instruction set for the M93C56 and M93C66
Instruction
Description
Start
bit
Op-
code
x8 origination (ORG = 0)
x16 origination (ORG = 1)
Address
(1) (2)
Data
Required
clock cycles
Address
(1) (3)
Data
Required
clock cycles
READ
Read Data from
Memory
1
10
A8-A0
Q7-Q0
A7-A0
Q15-Q0
WRITE
Write Data to
Memory
1
01
A8-A0
D7-D0
20
A7-A0
D15-D0
27
WEN
Write Enable
1
00
1 1XXX
XXXX
12
11XX
XXXX
11
WDS
Write Disable
1
00
0 0XXX
XXXX
12
00XX
XXXX
11
ERASE
Erase Byte or
Word
1
11
A8-A0
12
A7-A0
11
ERAL
Erase All
Memory
100
1 0XXX
XXXX
12
10XX
XXXX
11
WRAL
Write All Memory
with same Data
100
0 1XXX
XXXX
D7-D0
20
01XX
XXXX
D15-D0
27
1.
X = Don't Care bit.
2.
Address bit A8 is not decoded by the M93C56.
3.
Address bit A7 is not decoded by the M93C56.
Table 7.
Instruction set for the M93C76 and M93C86
Instruction
Description
Start
bit
Op-
code
x8 Origination (ORG = 0)
x16 Origination (ORG = 1)
Address(1),
(2)
Data
Required
clock
cycles
Address
(1) (3)
Data
Required
clock
cycles
READ
Read Data from
Memory
1
10
A10-A0
Q7-Q0
A9-A0
Q15-Q0
WRITE
Write Data to
Memory
1
01
A10-A0
D7-D0
22
A9-A0
D15-D0
29
WEN
Write Enable
1
00
11X XXXX
XXXX
14
11 XXXX
XXXX
13
WDS
Write Disable
1
00
00X XXXX
XXXX
14
00 XXXX
XXXX
13
ERASE
Erase Byte or Word
1
11
A10-A0
14
A9-A0
13
ERAL
Erase All Memory
1
00
10X XXXX
XXXX
14
10 XXXX
XXXX
13
WRAL
Write All Memory
with same Data
100
01X XXXX
XXXX
D7-D0
22
01 XXXX
XXXX
D15-D0
29
1.
X = Don't Care bit.
2.
Address bit A10 is not decoded by the M93C76.
3.
Address bit A9 is not decoded by the M93C76.



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