Datasheet

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
-40˚C ≤ T
A ≤ +85˚C for industrial and
0˚C ≤ T
A ≤ +70˚C for commercial
Operating voltage V
DD range as described in Section 17.1
Parameter
No. Sym Characteristic Min Typ† Max Units Conditions
Input Low Voltage
V
IL I/O ports
D030 with TTL buffer V
SS – 0.8 V
D031 with Schmitt Trigger buffer V
SS – 0.2VDD V
D032 MCLR
, OSC1 (in EC and RC
mode)
Vss – 0.2VDD V Note1
D033 OSC1 (in XT, and LF mode) – 0.5V
DD –V
Input High Voltage
V
IH I/O ports –
D040 with TTL buffer 2.0 – V
DD V
D041 with Schmitt Trigger buffer 0.8V
DD –VDD V
D042 MCLR
0.8VDD –VDD V Note1
D043 OSC1 (XT, and LF mode) – 0.5V
DD –V
D050 V
HYS Hysteresis of
Schmitt Trigger inputs
0.15VDD*– – V
Input Leakage Current
(Notes 2, 3)
D060 I
IL 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
––±2µAVPIN = Vss or VPIN = VDD
D062 RA2, RA3 ±2 µA Vss ≤ VRA2, VRA3 ≤ 12V
D063 OSC1, TEST – – ±1 µA Vss ≤ V
PIN ≤ VDD
D064 MCLR
– – 10 µAVMCLR = VPP = 12V
(when not programming)
D070 I
PURB 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.