S-93C66BD0I-T8T1G Seiko Instruments, S-93C66BD0I-T8T1G Datasheet - Page 12

• Manufacturer Part Number: S-93C66BD0I-T8T1G
• Description: IC EEPROM 4KBIT 500KHZ 8TSSOP
• Manufacturer: Seiko Instruments

Specifications of S-93C66BD0I-T8T1G

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 4K (256 x 16)
• Speed: 500kHz
• Interface: 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CS
SK
12
DO
DI
3-WIRE SERIAL E
S-93C46B/56B/66B
3. Reading (READ)
CS
SK
DO
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
(High-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
①
1
1
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
A
2
①
1
1
0
A
3
1
0
High-Z
= 1
2
4
0
A
3
6
5
A
A
5
2
4
High-Z
5
6
A
PROM
x : S-93C56B
7
1 1) rolls over to the top address (A
A
A
: S-93C66B
4
7
4
5
A
A
3
3
8
6
0
A
A
Figure 10 Read Timing (S-93C56B, S-93C66B)
) has been latched, the output status of the DO pin changes from high impedance
9
2
2
7
A
A
10
1
1
8
A
A
Figure 9 Read Timing (S-93C46B)
11
0
0
9
0
0
12
D
10
D
15
15
Seiko Instruments Inc.
13
D
11
D
14
14
14
D
12
13
D
13
24
25
D
23
n
2
D
26
2
D
24
1
D
ADRINC
27
1
D
ADRINC
0
A
25
D
28
1
0
D
15
A
26
D
29
0
15
D
= 0
14
27
D
14
D
13
28
D
13
0 0).
40
41
D
2
39
42
D
D
2
1
ADRINC
40
43
D
D
1
0
41
ADRINC
44
D
D
0
15
42
45
D
D
15
14
43
D
D
14
Rev.7.0
13
44
D
13
n
_00
High-Z
High-Z