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PT7C4363 Datasheet, PDF (18/22 Pages) Pericom Semiconductor Corporation – Real-time Clock Module (I2C Bus)
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Data Sheet
PT7C4363
Real-time Clock Module (I2C Bus)
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DC Electrical Characteristics
Unless otherwise specified, GND =0V, VCC = 1.8 ~ 5.5 V, TA = -40 °C to +85 °C, fOSC = 32.768kHz.
Sym.
Description
Pin
Conditions
Min Typ Max Unit
Supply voltage
VCC
VCC
Supply voltage for clock
data integrity
VCC
Interface inactive. TA = 25°C 1)
Interface active. fSCL = 400kHz 1)
1.0
5.5
1.8
5.5
V
1.0 0.9
Interface active
ICC Supply current
Interface
TA = 25°C
inactive (fSCL =
0Hz), pin 7
disabled 2)
TA = -40 ~
VCC
85°C
Interface
inactive (fSCL =
0Hz), pin 7
enabled at
32kHz 2)
TA = 25°C
TA = -40 ~
85°C
VIL1 Low-level input voltage SCL
VIH1 High-level input voltage SCL
IOL
Low-level output voltage
SDA
VOL = 0.4V, VCC = 5V
/INT, SQW VOL = 0.4V, VCC = 5V
IIL Input leakage current
SCL
IOZ Output current when OFF
fSCL = 400kHz
fSCL = 100kHz
800 µA
200
VCC = 5.0V
275 550
VCC = 3.0V
250 500 nA
VCC = 2.0V
225 450
VCC = 5.0V
500 750
VCC = 3.0V
400 650 nA
VCC = 2.0V
400 600
VCC = 5.0V
825 1600
VCC = 3.0V
550 1000 nA
VCC = 2.0V
425 800
VCC = 5.0V
950 1700
VCC = 3.0V
650 1100 nA
VCC = 2.0V
500 900
0
0.7VCC
0.3VCC V
VCC
-3
mA
-1
±1 µA
±1 µA
Note:
1) For reliable oscillator start-up at power-up: VCC(min)power-up = VCC(min) + 0.3 V.
2) Timer source clock = 1/60 Hz, voltage of SCL and SDA is VCC or GND.
PT0207(07/05)
18
Ver: 0
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