S24C08C Datasheet, PDF (26/35 Pages) Seiko Instruments Inc – FOR AUTOMOTIVE 105C OPERATION

FOR AUTOMOTIVE 105°C OPERATION 2-WIRE SERIAL E²PROM
S-24C08C H Series
Rev.2.2_00_H
6. Data hold time (t_HD.DAT = 0 ns)
If SCL and SDA of the S-24C08C are changed at the same time, it is necessary to prevent a start / stop condition from
being mistakenly recognized due to the effect of noise.
The S-24C08C may error if it does not recognize a start / stop condition correctly during transmission.
It is recommended to set the delay time of 0.3 μs minimum from a falling edge of SCL for the SDA.
This is to prevent the S-24C08C from going in a start / stop condition due to the time lag caused by the load of the bus
line.
tHD.DAT = 0.3 μs min.
SCL
SDA
Figure 28 S-24C08C Data Hold Time
7. SDA pin and SCL pin noise suppression time
The S-24C08C includes a built-in low-pass filter at the SDA pin and the SCL pin to suppress noise. This means that if
the power supply voltage is 5.0 V, noise with a pulse width of 130 ns or less can be suppressed.
For details of the assurable value, refer to noise suppression time (t_l) in Table 12.
300
Noise Suppression Time (t_I) max.
200
[ns]
100
2
3
4
5
Power supply voltage (V_CC)
[V]
Figure 29 Noise Suppression Time for the SDA Pin and the SCL Pin
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Seiko Instruments Inc.