PT7C4337 Datasheet, PDF (20/25 Pages) List of Unclassifed Manufacturers – Real-time Clock Module (I2C Bus)

Data Sheet
PT7C4337
Real-time Clock Module (I²C Bus)
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DC Electrical Characteristics
Unless otherwise specified, V_CC = 1.8~5.5V, T_A = -40 °C to +85 °C
Sym.
Item
Pin
Condition
V_CC Supply voltage
V_OSC Oscillator voltage
Active supply current
Standby current
I_{CC Timekeeping current}
Data retention current
V_IL1 Low-level input voltage
V_IH1 High-level input voltage
V_IL2 Low-level input voltage
V_IH2 High-level input voltage
I_OL Low-level output current
I_IL Input leakage current
I_OZ Output current when OFF
V_CC
V_CC
V_CC
V_CC
V_CC
V_CC
SCL
SCL
X1
X1
SDA, /INTA, /INTB
SCL
SDA, /INTA, /INTB
/ETIME bit = 0, Note 1
/ETIME bit = 1, Note 2,3
V_CC: 1.3~1.8V, Note 2,4,5
V_CC: 1.3~1.8V, Note 2
V_OL = 0.4V
Note:
1. SCL clocking at max frequency = 400kHz, V_IL = 0.0V, V_IH = VCC.
2. Specified with 2-wire bus inactive, V_IL = 0.0V, V_IH = VCC.
3. SQW enabled.
4. Specified with the SQW function disabled by setting INTCN = 1.
5. Using recommended crystal on X1 and X2.
Min Typ Max Unit
1.8
5.5 V
1.3
5.5 V
150 _µA
1.5
600
nA
50
-0.3
0.7V_CC
0.3V_{CC V}
V_CC+0.3
0.53
V
0.53
3 mA
1 µA
1 µA
PT0205(02/07)
20
Ver: 1