BQ4822Y Datasheet, PDF (9/16 Pages) Texas Instruments – RTC Module With 8Kx8 NVSRAM

bq4822Y
DC Electrical Characteristics (TA = TOPR, VCCMIN ≤ VCC ≤ VCCMAX)
Symbol
Parameter
ILI
Input leakage current
ILO
VOH
VOL
IOD
ISB1
Output leakage current
Output high voltage
Output low voltage
RST, INT sink current
Standby supply current
ISB2
Standby supply current
Minimum
-
-
2.4
-
10
-
-
ICC
VPFD
VSO
Operating supply current
-
Power-fail-detect voltage
4.30
Supply switch-over voltage
-
Typical
-
-
-
-
-
3
2
55
4.37
3
Maximum
±1
±1
-
0.4
-
6
4
75
4.50
-
Unit
µA
µA
V
V
mA
mA
mA
mA
V
V
Conditions/Notes
VIN = VSS to VCC
CE = VIH or OE = VIH or
WE = VIL
IOH = -1.0 mA
IOL = 2.1 mA
VOL = 0.4V
CE = VIH
CE ≥ VCC - 0.2V,
0V ≤ VIN ≤ 0.2V,
or VIN ≥ VCC - 0.2V
Min. cycle, duty = 100%,
CE = VIL, II/O = 0mA
Notes:
Typical values indicate operation at TA = 25°C, VCC = 5V.
RST and INT are open-drain outputs.
Capacitance (TA = 25°C, F = 1MHz, VCC = 5.0V)
Symbol
Parameter
Minimum Typical
CI/O
Input/output capacitance
-
-
CIN
Input capacitance
-
-
Note:
These parameters are sampled and not 100% tested.
Maximum
10
10
Unit
Conditions
pF Output voltage = 0V
pF Input voltage = 0V
May 1997
9