MB3773
8
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■ELECTORICAL CHARACTERISTICS
(1) DC Characteristics (VCC = 5 V, Ta = + 25 °C)
Parameter Symbol Condition Valu e
Unit
Min Typ Max
Supply current ICC Watch dog timer operating 600 900 µA
Detection voltage
VSL
VCC 4.10 4.20 4.30
V
Ta = − 40 °C to + 85 °C 4.05 4.20 4.35
VSH
VCC 4.20 4.30 4.40
Ta = − 40 °C to + 85 °C 4.15 4.30 4.45
Hysteresis width VHYS VCC 50 100 150 mV
Reference voltage VREF
1.227 1.245 1.263 V
Ta = − 40 °C to + 85 °C 1.215 1.245 1.275
Reference voltage change rate ∆VREF1 VCC = 3.5 V to 16 V 310mV
Reference voltage output
loading change rate ∆VREF2 IOUT = − 200 µA to + 5 µA− 5 + 5mV
CK threshold voltage VTH Ta = − 40 °C to + 85 °C 0.8 1.25 2.0 V
CK input current IIH VCK = 5.0 V 01.0
µA
IIL VCK = 0.0 V − 1.0 − 0.1
CT discharge current ICTD Watch dog timer operating
VCT = 1.0 V 71014µA
High level output voltage VOH1 VS open, IRESET = − 5 µA4.54.9V
VOH2 VS = 0 V, IRESET = − 5 µA4.54.9
Output saturation voltage
VOL1 VS = 0 V, IRESET = 3 mA 0.2 0.4
V
VOL2 VS = 0 V, IRESET = 10 mA 0.3 0.5
VOL3 VS open, IRESET = 3 mA 0.2 0.4
VOL4 VS open, IRESET = 10 mA 0.3 0.5
Output sink current IOL1 VS = 0 V, VRESET = 1.0 V 20 60 mA
IOL2 VS open, VRESET = 1.0 V 20 60
CT charge current ICTU Power on reset operating
VCT = 1.0 V 0.5 1.2 2.5 µA
Min supply voltage for RESET VCCL1 VRESET = 0.4 V,
IRESET = 0.2 mA 0.8 1.2 V
Min supply voltage for RESET VCCL2 VRESET = VCC − 0.1 V,
RL (pin 2 − GND) = 1 MΩ0.8 1.2 V