Microprocessors and Microcontrollers: Unit V: (b) Introduction to RISC Based Architecture
PIC18F458/452 Pin Out Connection
Review Questions 1. Give the classification of PIC18F458 pins. 2. Give the alternate functions provided by Port A and Port E pins. 3. Give the alternate functions provided by Port B pins. 4. Give the alternate functions provided by Port C pins. 5. Give the alternate functions provided by Port D pins.
PIC18F458/452 Pin Out Connection
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Fig. 18.4.1 shows the pin diagram of PIC18F458
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As shown in the Fig. 18.4.1, PIC18F458 has total 40 pins. These pins can be
classified as :
■
Port
pins : Out of 40 pins, 34 pins are dedicated to five ports
A (RA0-RA6), B (RB0-RB7), C(RC0-RC7), D (RD0-RD7) and E (RE0-RE2), with
alternate functions.
■
Oscillator
pins: OSC1 and OSC2. OSC2 and RA6 share the same pin.
■
Reset
pin:
MCLR (Master clear)
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Programming voltage input: VPP
■
Power
supply pins: Two VDD and Two VSS
(GND).
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Table 18.4.1 shows PIC18F458 pins with description.
Review Questions
1. Give the
classification of PIC18F458 pins.
2. Give the
alternate functions provided by Port A and Port E pins.
3. Give the
alternate functions provided by Port B pins.
4. Give the
alternate functions provided by Port C pins.
5. Give the alternate functions provided by Port D pins.
Microprocessors and Microcontrollers: Unit V: (b) Introduction to RISC Based Architecture : Tag: : - PIC18F458/452 Pin Out Connection