s-24cs64a Seiko Instruments Inc., s-24cs64a Datasheet - Page 11

• Manufacturer Part Number: s-24cs64a
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

Rev.4.1
3. Data Transmission
4. Acknowledge
Changing the SDA line while the SCL line is low, data is transmitted.
Changing the SDA line while the SCL line is high, a start or stop condition is recognized.
The unit of data transmission is 8 bits. During the 9th clock cycle period the receiver on the bus pulls down
the SDA line to acknowledge the receipt of the 8-bit data.
When a internal write cycle is in progress, the device does not generate an acknowledge.
_00
(E
(E
(Master Output)
2
2
PROM Output)
PROM Input)
SDA
SCL
SDA
SCL
SDA
Start Condition
Figure 10 Acknowledge Output Timing
Figure 9 Data Transmission Timing
t
SU.DAT
1
Seiko Instruments Inc.
t
HD.DAT
2-WIRE CMOS SERIAL E
8
t
Acknowledge
AA
Output
9
t
DH
S-24CS64A
2
PROM
11