S-93A46A SII [Seiko Instruments Inc], S-93A46A Datasheet - Page 10

• Manufacturer Part Number: S-93A46A
• Description: CMOS SERIAL E2PROM
• Manufacturer: SII [Seiko Instruments Inc]

10
CMOS SERIAL E
S-93A46A/56A/66A
CS
SK
DO
DI
CS
SK
DO
3. Reading (READ)
DI
The READ instruction reads data from a specified address.
After CS has gone high, input an instruction in the order of the start bit, read instruction, and address.
Since the last input address (A
impedance (Hi-Z) to low, which is held until the next rise of SK. 16-bit data starts to be output in
synchronization with the next rise of SK.
3.1 Sequential Read
After the 16-bit data at the specified address has been output, inputting SK while CS is high
automatically increments the address, and causes the 16-bit data at the next address to be output
sequentially. The above method makes it possible to read the data in the whole memory space. The
last address (A
<1>
1
<1>
1
1
2
1
2
0
3
0
3
4
Hi-Z
A
4
5
Hi-Z
A
6
5
2
A
PROM
5
4
A
n
5
6
A
6
A
3
A
x:S-93A56A
7
4
:S-93A66A
7
A
7
2
A
A
3
8
1
A
8
1
A
A
9
2
0
A
9
0
Figure 5 Read Timing (S-93A56A/66A)
A
0
10
1
1
10
Figure 4 Read Timing (S-93A46A)
D
0
A
) has been latched, the output status of the DO pin changes from high
15
11
0
0
11
D
14
12
D
1 1) rolls over to the top address (A
12
15
D
13
13
Seiko Instruments Inc.
D
14
14
D
13
22
23
D
2
24
24
D
25
1
D
ADRINC
25
2
D
26
0
D
26
1
D
15
ADRINC
27
D
27
0
D
14
28
D
15
D
13
29
D
14
D
13
38
39
D
40
2
n
40
D
41
1
D
41
ADRINC
2
D
42
A
0
D
42
1
1
D
15
43
ADRINC
A
D
43
0
0
D
44
14
D
15
D
0
45
13
D
14
D
13
0 0).
Rev.2.1
Hi
-
Z
Hi
-
Z
_00