Table A-5 16.78 MHz DC Characteristics
(VDD and VDDSYN = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = TL to TH)
Num
Characteristic
Symbol Min
Max Unit
1 Input High Voltage
VIH
0.7 (VDD) VDD + 0.3 V
2 Input Low Voltage
VIL
VSS – 0.3 0.2 (VDD) V
3 Input Hysteresis1
VHYS
0.5
—
V
4 Input Leakage Current2
Vin = VDD or VSS
Iin
–2.5
2.5
µA
Input-only pins
5 High Impedance (Off-State) Leakage Current2
IOZ
Vin = VDD or VSS
All input/output and output pins
–2.5
µA
2.5
6 CMOS Output High Voltage2, 3
VOH VDD – 0.2
—
V
IOH = –10.0 µA
Group 1, 2, 4 input/output and all output pins
7 CMOS Output Low Voltage2
VOL
—
IOL = 10.0 µA
Group 1, 2, 4 input/output and all output pins
0.2
V
8 Output High Voltage2, 3
VOH VDD – 0.8
—
V
IOH = –0.8 mA
Group 1, 2, 4 input/output and all output pins
9 Output Low Voltage2
VOL
IOL = 1.6 mA Group 1 I/O Pins, CLKOUT, FREEZE/QUOT, IPIPE
—
IOL = 5.3 mA Group 2 and Group 4 I/O Pins, CSBOOT, BG/CS
—
IOL = 12 mA
Group 3
—
0.4
0.4
0.4
A V
10 Three State Control Input High Voltage
VIHTSC 1.6 (VDD)
9.1
V
11 Data Bus Mode Select Pull-up Current5
Vin = VIL
Vin = VIH
IMSP
DATA[15:0]
—
DATA[15:0]
–15
µA
–120
—
12 VDDRSUuNpp4ly Current6
LPSTOP, 32.768 kHz crystal, VCO Off (STSIM = 0)
LPSTOP (External clock input frequency = maximum fsys)
IDD
—
SIDD
—
SIDD
—
124
mA
350
µA
5
mA
13 Clock Synthesizer Operating Voltage
VDDSYN
4.5
14 VDDSYN Supply Current6
32.768 kHz crystal, VCO on, maximum fsys
External Clock, maximum fsys
LPSTOP, 32.768 kHz crystal, VCO off (STSIM = 0)
32.768 kHz crystal, VDD powered down
IDDSYN
—
IDDSYN
—
SIDDSYN
—
IDDSYN
—
15 Power Dissipation8
PD
—
16 Input Capacitance2, 9
All input-only pins Cin
—
All input/output pins
—
5.5
V
1
mA
5
mA
150
µA
100
µA
690
mW
10
pF
20
17 Load Capacitance2
Group 1 I/O Pins and CLKOUT, FREEZE/QUOT, IPIPE CL
—
90
pF
Group 2 I/O Pins and CSBOOT, BG/CS
—
100
Group 3 I/O pins
—
130
Group 4 I/O pins
—
200
MC68331
USER’S MANUAL
ELECTRICAL CHARACTERISTICS
MOTOROLA
A-5