PIC17C44 Datasheet, PDF (150/241 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

PIC17C4X
Applicable Devices 42 R42 42A 43 R43 44
17.2 DC CHARACTERISTICS:
PIC17C42-16 (Commercial, Industrial)
PIC17C42-25 (Commercial, Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature
DC CHARACTERISTICS
-40˚C ≤ TA ≤ +85˚C for industrial and
0˚C ≤ TA ≤ +70˚C for commercial
Operating voltage VDD range as described in Section 17.1
Parameter
No. Sym
Characteristic
Min Typ† Max Units
Conditions
D030
D031
Input Low Voltage
VIL I/O ports
with TTL buffer
VSS
with Schmitt Trigger buffer
VSS
–
0.8 V
– 0.2VDD V
D032
D033
D040
D041
D042
D043
D050
D060
MCLR, OSC1 (in EC and RC
Vss
– 0.2VDD V Note1
mode)
OSC1 (in XT, and LF mode)
– 0.5VDD –
V
Input High Voltage
VIH I/O ports
–
with TTL buffer
2.0
–
VDD V
with Schmitt Trigger buffer 0.8VDD
–
VDD V
MCLR
0.8VDD
–
VDD V Note1
OSC1 (XT, and LF mode)
– 0.5VDD –
V
VHYS Hysteresis of
0.15VDD* –
–
V
Schmitt Trigger inputs
Input Leakage Current
(Notes 2, 3)
IIL I/O ports (except RA2, RA3)
–
–
±1 µA Vss ≤ VPIN ≤ VDD,
I/O Pin at hi-impedance
PORTB weak pull-ups dis-
abled
D061
MCLR
–
–
±2 µA VPIN = Vss or VPIN = VDD
D062
RA2, RA3
±2 µA Vss ≤ VRA2, VRA3 ≤ 12V
D063
OSC1, TEST
–
–
±1 µA Vss ≤ VPIN ≤ VDD
D064
MCLR
–
–
10 µA VMCLR = VPP = 12V
(when not programming)
D070
IPURB PORTB weak pull-up current
60
200 400 µA 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 specifications. These loads are not tested.
Note 1: In RC oscillator configuration, 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 specified levels
represent normal operating conditions. Higher leakage current may be measured at different input voltages.
3: Negative current is defined as coming out of the pin.
4: These specifications are for the programming of the on-chip program memory EPROM through the use of the
table write instructions. The complete programming specifications can be found in: PIC17CXX Programming
Specifications (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 specifications may be used.
DS30412C-page 150
© 1996 Microchip Technology Inc.