¡ Semiconductor
MSM64P164
ELECTRICAL CHARACTERISTICS (1.5 V Spec.)
DC Characteristics
(VSS = 0 V, VDD1 = VDD = 1.5 V, Ta = 0 to +65°C unless otherwise specified)
Parameter Symbol
Condition
Measuring
Min. Typ. Max. Unit
Circuit
VDD2 Voltage
+100%
VDD2 Ca, Cb, C12 = 0.1 mF –50%
2.8 3.0 3.2 V
VDD3 Voltage
+100%
VDD3 Ca, Cb, C12 = 0.1 mF –50%
4.3 4.5 4.7 V
Crystal Oscillation
Start Voltage
Oscillation start time:
VSTA within 5 seconds
1.47 — — V
Crystal Oscillation
Hold Voltage
VHOLD
—
1.40 — — V
Crystal Oscillation
Stop Detection Time TSTOP
—
0.1 — 1000 ms
Internal Crystal
Oscillator Capacitance CG
—
10 15 20 pF
1
External Crystal
Oscillator Capacitance CGEX When external CG used
10 — 30 pF
Internal Crystal
Oscillator Capacitance CD
—
10 15 20 pF
Internal 400k RC
Oscillator Capacitance COS
—
8
12 16 pF
400k RC Oscillation
Frequency
fOSC
External resistor ROS = 300 kW
VDD1 = 1.40 to 1.7 V
80
220 350 kHz
POR Generation
Voltage
VPOR1
When VDD1 is between VPOR1
and 1.5 V
0
— 0.4 V
POR Non-generation
Voltage
VPOR2
No POR when VDD1 is between
VPOR2 and 1.5 V
1.4
—
1.5
V
Notes: 1. "POR" denotes Power On Reset.
2. "TSTOP" indicates that if the crystal oscillator stops over the value of TSTOP, the
system reset occurs.
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