at93c56a-w1.8-11-4 ATMEL Corporation, at93c56a-w1.8-11-4 Datasheet - Page 6

• Manufacturer Part Number: at93c56a-w1.8-11-4
• Description: Three-wire Serial Eeprom
• Manufacturer: ATMEL Corporation

Table 3-4.
Note:
6
Instruction
READ
EWEN
ERASE
WRITE
ERAL
WRAL
EWDS
The X’s in the address field represent don’t care values and must be clocked.
AT93C56A/66A
Instruction Set for the AT93C56A and AT93C66A
SB
1
1
1
1
1
1
1
Code
Op
10
00
01
00
00
00
11
10XXXXXXX
01XXXXXXX
00XXXXXXX
11XXXXXXX
A
A
A
8
8
8
x 8
– A
– A
– A
0
0
0
Address
10XXXXXX
01XXXXXX
00XXXXXX
11XXXXXX
A
A
A
x 16
7
7
7
– A
– A
– A
0
0
0
D
D
7
7
x 8
– D
– D
0
0
Data
D
D
15
15
x 16
– D
– D
0
0
Comments
Reads data stored in memory, at
specified address.
Write enable must precede all
programming modes.
Erases memory location A
Writes memory location A
Erases all memory locations. Valid
only at V
Writes all memory locations. Valid
only at V
Register cleared.
Disables all programming
instructions.
CC
CC
= 4.5V to 5.5V.
= 5.0V ±10% and Disable
3378L–SEEPR–11/07
n
n
– A
– A
0
0
.
.