MC68HC08SR12
MC68HC908SR12MC68HC08SR12 — Rev. 5.0
Data Sheet
Freescale Semiconductor
MC68HC08SR12
399
A.8.2 3.0V DC Electrical Characteristics
Pullup resistors(8)
PTD[0:7] configured as KBI[0:7]
RST, IRQ1, IRQ2
RPU1
RPU2
24
35
42
k
k
Low-voltage inhibit, trip falling voltage
VLVII5
3.80
4.15
4.45
V
Low-voltage inhibit, trip rising voltage
VLVII5
3.95
4.30
4.60
V
Schmitt trigger input low level trip voltage
RST, IRQ1, IRQ2, KBI[0:7]
VSCMTL
—1.21—
V
Schmitt trigger input high level trip voltage
RST, IRQ1, IRQ2, KBI[0:7]
VSCMTH
—1.65—
V
Notes:
1. VDD = 4.5 to 5.5 Vdc, VSS = 0 Vdc, TA = TL to TH, 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. 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. 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.
5. STOP IDD measured with OSC1 grounded, no port pins sourcing current.
6. Maximum is highest voltage that POR is guaranteed.
7. If minimum VDD is not reached before the internal POR reset is released, RST must be driven low externally until minimum
VDD is reached.
8. RPU1 and RPU2 are measured at VDD = 5.0V
Table A-3. 3V DC Electrical Characteristics
Characteristic(1)
Symbol
Min
Typ(2)
Max
Unit
Output high voltage (ILOAD = –1.0mA)
PTA[0:7], PTB[4:6], PTC[0:7], PTD[0:7]
VOH
VDD–0.4
——
V
Output low voltage (ILOAD = 0.8mA)
PTA[0:7], PTB[0:6], PTC[0:7], PTD[0:7]
VOL
——
0.4
V
LED sink current (VDrain = 2.0V)
PTA[0:5], PTC[3:7]
VOL
—–5
—
mA
Input high voltage
PTA[0:7], PTB[0:6], PTC[0:7], PTD[0:7], RST, IRQ1,
IRQ2, OSC1
VIH
0.7
× V
DD
—
VDD
V
Input low voltage
PTA[0:7], PTB[0:6], PTC[0:7], PTD[0:7], RST, IRQ1,
IRQ2, OSC1
VIL
VSS
—
0.3
× V
DD
V
Table A-2. 5V DC Electrical Characteristics
Characteristic(1)
Symbol
Min
Typ(2)
Max
Unit