Datasheet

© 2009 Microchip Technology Inc. DS39632E-page 379
PIC18F2455/2550/4455/4550
28.3 DC Characteristics: PIC18F2455/2550/4455/4550 (Industrial)
PIC18LF2455/2550/4455/4550 (Industrial)
DC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for industrial
Param
No.
Symbol Characteristic Min Max Units Conditions
V
IL Input Low Voltage
I/O Ports (except RC4/RC5 in
USB mode):
D030 with TTL Buffer V
SS 0.15 VDD VVDD < 4.5V
D030A — 0.8 V 4.5V ≤ VDD ≤ 5.5V
D031 with Schmitt Trigger Buffer
RB0 and RB1
V
SS
VSS
0.2 VDD
0.3 VDD
V
V When in I
2
C™ mode
D032 MCLR
VSS 0.2 VDD V
D032A OSC1 and T1OSI VSS 0.3 VDD VXT, HS,
HSPLL modes
(1)
D033 OSC1 VSS 0.2 VDD VEC mode
(1)
VIH Input High Voltage
I/O Ports (except RC4/RC5 in
USB mode):
D040 with TTL Buffer 0.25 V
DD + 0.8V VDD VVDD < 4.5V
D040A 2.0 V
DD V4.5V ≤ VDD ≤ 5.5V
D041 with Schmitt Trigger Buffer
RB0 and RB1
0.8 VDD
0.7 VDD
VDD
VDD
V
V When in I
2
C mode
D042 MCLR
0.8 VDD VDD V
D042A OSC1 and T1OSI 0.7 V
DD VDD VXT, HS,
HSPLL modes
(1)
D043 OSC1 0.8 VDD VDD VEC mode
(1)
IIL Input Leakage Current
(2)
D060 I/O Ports, except D+ and D- — ±200 nA V
SS ≤ VPIN ≤ VDD,
Pin at high-impedance
D061 MCLR
— ±1 μAVss ≤ VPIN ≤ VDD
D063 OSC1 — ±1 μAVss ≤ VPIN ≤ VDD
I
PU Weak Pull-up Current
D070 IPURB PORTB Weak Pull-up Current 50 400 μAVDD = 5V, VPIN = VSS
D071 IPURD PORTD Weak Pull-up Current 50 400 μAVDD = 5V, VPIN = VSS
Note 1: 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.
2: Negative current is defined as current sourced by the pin.
3: Parameter is characterized but not tested.