S-24CS16A Datasheet, PDF (12/53 Pages) Seiko Instruments Inc – 2-WIRE CMOS SERIAL E2PROM

2-WIRE CMOS SERIAL E²PROM
S-24CS16A
3. Data Transmission
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.
t_SU.DAT
t_HD.DAT
SCL
Rev.4.3_00
SDA
Figure 12 Data Transmission Timing
4. Acknowledge
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 an internal write cycle is in progress, the device does not generate an acknowledge.
SCL
(E²PROM Input)
1
8
9
SDA
(Master Output)
SDA
(E²PROM Output)
Start Condition
Figure 13 Acknowledge Output Timing
Acknowledge
Output
t_AA
t_DH
12
Seiko Instruments Inc.