AT93C46-10PU-1.8 Просмотр технического описания (PDF) - Atmel Corporation
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AT93C46-10PU-1.8 Datasheet PDF : 21 Pages
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AT93C46/56/66
Table 5. Instruction Set for the AT93C46
Instruction SB
Op
Code
Address
x8
x 16
READ
1
10
A6 – A0
A5 – A0
EWEN
ERASE
WRITE
ERAL
1
00
11XXXXX 11XXXX
1
11
1
01
A6 – A0
A6 – A0
A5 – A0
A5 – A0
1
00
10XXXXX 10XXXX
Data
x8
x 16
D7 – D0
D15 – D0
WRAL
1
00
01XXXXX 01XXXX
D7 – D0
D15 – D0
EWDS
1
00
00XXXXX 00XXXX
Note: The Xs in the address field represent DON’T CARE values and must be clocked.
Comments
Reads data stored in memory, at
specified address
Write enable must precede all
programming modes
Erases memory location An – A0
Writes memory location An – A0
Erases all memory locations. Valid
only at VCC = 4.5V to 5.5V
Writes all memory locations. Valid
only at VCC = 4.5V to 5.5V
Disables all programming instructions
Table 6. Instruction Set for the AT93C56(1) and AT93C66(2)
Op
Instruction SB Code
Address
x8
x 16
READ
1
10
A8 – A0
A7 – A0
Data
x8
x 16
EWEN
ERASE
WRITE
ERAL
1
00
11XXXXXXX 11XXXXXX
1
11
1
01
A8 – A0
A8 – A0
A7 – A0
A7 – A0
D7 – D0
D15 – D0
1
00
10XXXXXXX 10XXXXXX
WRAL
1
00
01XXXXXXX 01XXXXXX D7 – D0
D15 – D0
EWDS
1
00
00XXXXXXX 00XXXXXX
Notes: 1. This device is not recommended for new designs. Please refer to AT93C56A.
2. This device is not recommended for new designs. Please refer to AT93C66A.
Comments
Reads data stored in memory, at
specified address
Write enable must precede all
programming modes
Erases memory location An – A0
Writes memory location An– A0
Erases all memory locations. Valid
only at VCC = 4.5V to 5.5V
Writes all memory locations. Valid
only at VCC = 5.0V ±10% and Disable
Register cleared
Disables all programming instructions
5
0172Z–SEEPR–9/05
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