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PIC17C4X
DS30412C-page 150
1996 Microchip Technology Inc.
Applicable Devices 42 R42 42A 43 R43 44
17.2
DC CHARACTERISTICS:
PIC17C42-16 (Commercial, Industrial)
PIC17C42-25 (Commercial, Industrial)
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
Input Low Voltage
VIL
I/O ports
D030
with TTL buffer
VSS
–
0.8
V
D031
with Schmitt Trigger buffer
VSS
–
0.2VDD
V
D032
MCLR, OSC1 (in EC and RC
mode)
Vss
–
0.2VDD
V
Note1
D033
OSC1 (in XT, and LF mode)
–
0.5VDD
–V
Input High Voltage
VIH
I/O ports
–
D040
with TTL buffer
2.0
–
VDD
V
D041
with Schmitt Trigger buffer
0.8VDD
–VDD
V
D042
MCLR
0.8VDD
–VDD
V
Note1
D043
OSC1 (XT, and LF mode)
–
0.5VDD
–V
D050
VHYS
Hysteresis of
Schmitt Trigger inputs
0.15VDD*–
–
V
Input Leakage Current
(Notes 2, 3)
D060
IIL
I/O ports (except RA2, RA3)
–
±1
A Vss ≤ VPIN ≤ VDD,
I/O Pin at hi-impedance
PORTB weak pull-ups dis-
abled
D061
MCLR
––
±2
AVPIN = Vss or VPIN = VDD
D062
RA2, RA3
±2
A Vss ≤ VRA2, VRA3 ≤ 12V
D063
OSC1, TEST
–
±1
A Vss ≤ VPIN ≤ VDD
D064
MCLR
–
10
AVMCLR = VPP = 12V
(when not programming)
D070
IPURB PORTB weak pull-up current
60
200
400
A
VPIN = VSS, RBPU = 0
*
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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