1996 Microchip Technology Inc.
DS30412C-page 151
PIC17C4X
Applicable Devices 42 R42 42A 43 R43 44
Output Low Voltage
D080
D081
VOL
I/O ports (except RA2 and RA3)
with TTL buffer
0.1VDD
0.4
V
IOL = 4 mA
IOL = 6 mA, VDD = 4.5V
Note 6
D082
RA2 and RA3
3.0
V
IOL = 60.0 mA, VDD = 5.5V
D083
OSC2/CLKOUT
(RC and EC osc modes)
0.4
V
IOL = 2 mA, VDD = 4.5V
Output High Voltage (Note 3)
D090
D091
VOH
I/O ports (except RA2 and RA3)
with TTL buffer
0.9VDD
2.4
V
IOH = -2 mA
IOH = -6.0 mA, VDD = 4.5V
Note 6
D092
RA2 and RA3
12
V
Pulled-up to externally applied
voltage
D093
OSC2/CLKOUT
(RC and EC osc modes)
2.4
V
IOH = -5 mA, VDD = 4.5V
Capacitive Loading Specs on
Output Pins
D100
COSC2 OSC2 pin
25
pF
In EC or RC osc modes when
OSC2 pin is outputting
CLKOUT.
External clock is used to drive
OSC1.
D101
CIO
All I/O pins and OSC2
(in RC mode)
50
pF
D102
CAD
System Interface Bus
(PORTC, PORTD and PORTE)
100
pF
In Microprocessor or
Extended Microcontroller
mode
DC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40C
≤ TA ≤ +85C for industrial and
0C
≤ TA ≤ +70C for commercial
Operating voltage VDD range as described in Section 17.1
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25
°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
These parameters are for design guidance only and are not tested, nor characterized.
Design guidance to attain the AC timing specications. These loads are not tested.
Note 1: In RC oscillator conguration, the OSC1 pin is a Schmitt Trigger input. It is not recommended that the
PIC17CXX devices be driven with external clock in RC mode.
2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specied levels
represent normal operating conditions. Higher leakage current may be measured at different input voltages.
3: Negative current is dened as coming out of the pin.
4: These specications are for the programming of the on-chip program memory EPROM through the use of the
table write instructions. The complete programming specications can be found in: PIC17CXX Programming
Specications (Literature number DS30139).
5: The MCLR/Vpp pin may be kept in this range at times other than programming, but this is not recommended.
6: For TTL buffers, the better of the two specications may be used.
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