S-24C02DI-J8T1U5 Datasheet, PDF (8/47 Pages) Seiko Instruments Inc – Write protect function during low power supply voltage

2-WIRE SERIAL E²PROM
S-24C02D/04D/08D16D
Rev.3.0_01_U
 AC Electrical Characteristics
Table 9 Measurement Conditions
Input pulse voltage
Input pulse rising / falling time
Output reference voltage
Output load
0.2 × VCC to 0.8 × VCC
20 ns or less
0.3 × VCC to 0.7 × VCC
100 pF
Input pulse voltage
0.8 × V_CC
Output reference voltage
0.7 × V_CC
0.2 × V_CC
0.3 × V_CC
Figure 1 Input / Output Waveform during AC Measurement
Item
SCL clock frequency
SCL clock time "L"
SCL clock time "H"
SDA output delay time
SDA output hold time
Start condition setup time
Start condition hold time
Data input setup time
Data input hold time
Stop condition setup time
SCL, SDA rising time
SCL, SDA falling time
WP setup time
WP hold time
WP release setup time
WP release hold time
Bus release time
Noise suppression time
Write time
Table 10
Ta = −40°C to +85°C
Symbol
VCC = 2.5 V to 5.5 V
VCC = 1.7 V to 5.5 V
Unit
Min.
Max.
Min.
Max.
fSCL
tLOW
tHIGH
tAA
tDH
tSU.STA
tHD.STA
tSU.DAT
tHD.DAT
tSU.STO
tR
tF
tWS1
tWH1
tWS2
tWH2
tBUF
tI
tWR
0
1000
0
0.4
−
1.3
0.3
−
0.6
0.1
0.5
0.1
50
−
50
0.25
−
0.6
0.25
−
0.6
80
−
100
0
−
0
0.25
−
0.6
−
0.3
−
−
0.3
−
0
−
0
0
−
0
0
−
0
0
−
0
0.5
−
1.3
−
50
−
−
5.0
−
400
kHz
−
μs
−
μs
0.9
μs
−
ns
−
μs
−
μs
−
ns
−
ns
−
μs
0.3
μs
0.3
μs
−
μs
−
μs
−
μs
−
μs
−
μs
50
ns
5.0
ms
8