80C32E
DC Parameters
Table 3. DC Parameters in Standard VoltageTA = -55°C to +125°C; VSS = 0V; VCC = 5V 10%; F = 0 to 30 MHz.
Symbol
Parameter
Min.
Max
0.2 VCC - 0.1
VCC + 0.5
VCC + 0.5
0.45
Unit Test Conditions
VIL
Input Low Voltage
-0.5
V
V
V
VIH
Input High Voltage except XTAL1, RST
Input High Voltage, XTAL1, RST
Output Low Voltage, ports 1, 2, 3(5)
Output Low Voltage, port 0, ALE, PSEN(5)
0.2 VCC + 1.4
0.7 VCC
VIH1
VOL
V
V
IOL = 1.6 mA(4)
IOL = 3.2 mA(4)
IOH = -60 µA
IOH = -25 µA
IOH = -10 µA
VOL1
0.45
2.4
V
V
V
VOH
Output High Voltage, ports 1, 2, 3
0.75 VCC
0.9 VCC
2.4
V
V
V
IOH = -400 µA
IOH = -150 µA
IOH = -40 µA
VOH1
Output High Voltage, port 0, ALE, PSEN
0.75 VCC
0.9 VCC
RRST
IIL
RST Pull-down Resistor
50
200
-75
kΩ
µA
µA
µA
Logical 0 Input Current ports 1, 2 and 3
Input Leakage Current
Vin = 0.45V
ILI
10
0.45 V < Vin < VCC
Vin = 2.0V
ITL
Logical 1 to 0 Transition Current, ports 1, 2, 3
-750
Fc = 1 MHz
TA = 25°C
CIO
IPD
Capacitance of I/O Buffer
Power-down Current (3)
10
75
pF
µA
2.0V < VCC < 5.5V
Power Supply Current (1)(2)(6)
Freq = 1 MHz Icc Op
Freq = 1 MHz Icc Idle
Freq = 6 MHz Icc Op
Freq = 6 MHz Icc Idle
Freq >12 MHz Icc Op
Freq >12 MHz Icc Idle
V
CC = 5.5V
1.8
mA
mA
mA
mA
mA
mA
1
10
ICC
4
1.25F + 5
0.36F + 2.7
F in MHz
Notes: 1. ICC under reset is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns (see Figure 6), VIL
VSS + 0.5V,
=
VIH = VCC - 0.5V; XTAL2 N.C.; EA = RST = Port 0 = VCC. ICC would be slightly higher if a crystal oscillator is used.
2. Idle ICC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL = VSS + 0.5V, VIH = VCC
0.5V; XTAL2 N.C; Port 0 = VCC; EA = RST = VSS (see Figure 4).
-
3. Power-down ICC is measured with all output pins disconnected; EA = VSS, PORT 0 = VCC; XTAL2 NC.; RST = VSS (see Fig-
ure 5).
4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOLs of ALE and Ports 1
and 3. The noise is due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins make 1 to 0
transitions during bus operation. In the worst cases (capacitive loading 100 pF), the noise pulse on the ALE line may exceed
0.45V with maxi VOL peak 0.6V. The use of a Schmitt Trigger is not necessary.
5. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port:
Port 0: 26 mA
Ports 1, 2 and 3: 15 mA
Maximum total IOL for all output pins: 71 mA
9
4149M–AERO–06/03
AIMTEC [ AIMTEC ]
