S-34C04A Datasheet, PDF (5/22 Pages) Seiko Instruments Inc – FOR DIMM SERIAL PRESENCE DETECT

Rev.1.0_01_U
2-WIRE SERIAL E²PROM FOR DIMM SERIAL PRESENCE DETECT
S-34C04A
 AC Electrical Characteristics
Table 7 Measurement Conditions
Input pulse voltage
Input pulse rising / falling time
Output reference voltage
Output load
0.2 × VDD to 0.8 × VDD
20 ns or less
0.3 × VDD to 0.7 × VDD
100 pF
Input pulse voltage
0.8 × V_DD
Output reference voltage
0.7 × V_DD
0.2 × V_DD
0.3 × V_DD
Figure 1 Input / Output Waveform during AC Measurement
Item
SCL clock frequency
SCL clock time "L"
SCL clock time "H"
SCL clock "L" timeout
SCL, SDA rising time
SCL, SDA falling time
Data input setup time
Data input hold time
Data output hold time
Start condition setup time
Start condition hold time
Stop condition setup time
Bus release time
Noise suppression time
Power-off time
Initialize time
Table 8
Ta = −20°C to +125°C
Symbol
VDD = 1.7 V to 3.6 V
400 kHz
VDD = 2.2 V to 3.6 V
1000 kHz
Unit
Min.
Max.
Min.
Max.
fSCL
10
400
10
1000
kHz
tLOW
1.3
tHIGH
0.6
tTIMEOUT
25
−
0.5
−
μs
−
0.26
−
μs
35
25
35
ms
tR
0.02
0.3
−
0.12
μs
tF
0.02
0.3
−
0.12
μs
tSU.DAT
100
−
50
−
ns
tHD.DI
0
−
0
−
ns
tHD.DAT
200
900
0
350
ns
tSU.STA
0.6
−
0.26
−
μs
tHD.STA
0.6
−
0.26
−
μs
tSU.STO
0.6
tBUF
1.3
tI
−
−
0.26
−
μs
−
0.5
−
μs
50
−
50
ns
tPOFF
1
−
1
−
ms
tINIT
0.2
−
0.2
−
ms
SCL
t_F
t_SU.STA
t_HD.STA
SDA
(Input)
SDA
(Output)
t_HIGH
t_LOW
t_HD.DI
t_SU.DAT
t_HD.DAT
Figure 2 Bus Timing
t_R
t_SU.STO
t_BUF
5