93AA56A MICROCHIP [Microchip Technology], 93AA56A Datasheet - Page 4

• Manufacturer Part Number: 93AA56A
• Description: 2K Microwire Compatible Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

93AA56A/B/C, 93LC56A/B/C, 93C56A/B/C
FIGURE 1-1:
TABLE 1-3: INSTRUCTION SET FOR X 16 ORGANIZATION (93XX56B OR 93XX56C WITH ORG = 1)
TABLE 1-4: INSTRUCTION SET FOR X 8 ORGANIZATION (93XX56A OR 93XX56C WITH ORG = 0)
DS21794B-page 4
ERASE
ERAL
EWDS
EWEN
READ
WRITE
WRAL
ERASE
ERAL
EWDS
EWEN
READ
WRITE
WRAL
(PROGRAM)
Instruction
Instruction
Note:
(READ)
CLK
DO
DO
CS
DI
T
SV
V
V
V
V
V
V
V
V
V
V
OL
OH
OL
OH
SB
SB
IH
IH
IL
is relative to CS.
IL
IH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
IL
T
SYNCHRONOUS DATA TIMING
T
Opcode
Opcode
DIS
SV
00
00
00
10
01
00
00
00
00
10
01
00
11
11
T
CSS
X A7 A6 A5 A4 A3 A2 A1 A0
X A7 A6 A5 A4 A3 A2 A1 A0
X A7 A6 A5 A4 A3 A2 A1 A0
1
0
1
0
X
X
X
1
0
1
0
0
0
1
1
A6 A5 A4 A3 A2 A1 A0
A6 A5 A4 A3 A2 A1 A0
A6 A5 A4 A3 A2 A1 A0
0
0
1
1
X
X
X
X
X
X
X
X
T
CKH
T
Address
X
X
X
X
Address
T
PD
X
X
X
X
DIH
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
STATUS VALID
X
X
X
X
T
CKL
X
X
X
X
X
X
X
X
D15 – D0
D15 – D0
Data In
D7 – D0
D7 – D0
Data In
—
—
—
—
—
—
—
—
—
—
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
Data Out
D15 – D0
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
 2003 Microchip Technology Inc.
HIGH-Z
HIGH-Z
Data Out
D7 – D0
HIGH-Z
HIGH-Z
T
PD
Req. CLK Cycles
Req. CLK
Cycles
T
T
27
27
27
11
11
11
11
T
12
12
12
12
20
20
20
CZ
CZ
CSH