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MC68HC908GT16 Datasheet, PDF (385/412 Pages) Motorola, Inc – Microcontrollers
Electrical Specifications
5.0-V DC Electrical Characteristics
Characteristic(1)
Symbol
Min
Typ(2)
Max
Unit
Capacitance
Ports (as input or output)
COut
CIn
—
—
—
—
12
8
pF
Monitor mode entry voltage
VTST
VDD + 2.5
—
VDD + 4.0
V
Low-voltage inhibit, trip falling voltage
VTRIPF
3.90
4.25
4.50
V
Low-voltage inhibit, trip rising voltage
VTRIPR
4.20
4.35
4.60
V
Low-voltage inhibit reset/recover hysteresis
(VTRIPF + VHYS = VTRIPR)
VHYS
—
100
—
mV
POR rearm voltage(8)
VPOR
0
—
100
mV
POR reset voltage(9)
VPORRST
0
700
800
mV
POR rise time ramp rate(10)
RPOR
0.035
—
—
V/ms
1. VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = TA (min) to TA (max), unless otherwise noted
2. Typical values reflect average measurements at midpoint of voltage range, 25°C only.
3. Run (operating) IDD measured using external square wave clock source (fOSC = 32 MHz). All inputs 0.2 V from
rail. No dc loads. Less than 100 pF on all outputs. CL = 20 pF on OSC2. All ports configured as inputs. OSC2
capacitance linearly affects run IDD. Measured with all modules enabled.
4. Wait IDD measured using external square wave clock source (fOSC = 32 MHz). All inputs 0.2 V from rail. No dc
loads. Less than 100 pF on all outputs. CL = 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance
linearly affects wait IDD. Measured with ICG and LVI enabled.
5. Stop IDD is measured with OSC1 = VSS.
6. Stop IDD with TBM enabled is measured using an external square wave clock source (fOSC = 32 MHz). All
inputs 0.2 V from rail. No dc loads. Less than 100 pF on all outputs. All inputs configured as inputs.
7. Pullups and pulldowns are disabled. Port B leakage is specified in 23.16 ADC Characteristics.
8. Maximum is highest voltage that POR is guaranteed.
9. Maximum is highest voltage that POR is possible.
10. If minimum VDD is not reached before the internal POR reset is released, RST must be driven low externally
until minimum VDD is reached.
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
Electrical Specifications
Technical Data
385