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PIC16F883 데이터시트(PDF) 9 Page - Matrix Technology Solutions Ltd |
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PIC16F883 데이터시트(HTML) 9 Page - Matrix Technology Solutions Ltd |
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9 / 13 page ![]() 9 Copyright © 2014 Matrix Technology Solutions Ltd Bus connections 1. Expansion bus The pin connections on the expansion bus exactly mirror the pin numbering on the 40-pin DIL socket. Note that the pin numbering on the IDC socket is slightly different to that on a DIL socket which results in the seemingly odd arrangement of pins on the IDC pin chart. PICmicro pinout Bus name 18 Pin 8 Pin 14 Pin 20 Pin 28 Pin 40 Pin Vpp/MCLR 4 4 4 4 1 1 Vdd 14 1 1 1 20 11 & 32 Vss 5 8 77 20 8 & 19 12 &31 OCS1 16 2 2 2 9 13 OCS2 15 3 3 3 10 14 RA0/AN0 17 19 2 2 RA1/AN1 18 18 3 3 RA2/AN2 1 4 4 RA3/AN3 2 4 5 5 RA4 3 3 6 6 RA5/AN4 4 2 7 7 RB0 6 21 33 RB1 7 22 34 RB2 8 5* 11* 23 35 RB3 9 24 36 RB4 10 13 25 37 RB5 11 12 26 38 RB6 12 6* 12* 11 27 39 RB7 13 7* 13* 10 28 40 RC0 10 16 11 15 RC1 9 15 12 16 RC2 8 14 13 17 RC3 7 7 14 18 RC4 6 6 15 23 RC5 5 5 16 24 RC6 8 17 25 RC7 9 18 26 RD0 19 RD1 20 RD2 21 RD3 22 RD4 27 RD5 28 RD6 29 RD7 30 RE0/AN5 8 RE1/AN6 9 RE2/AN7 10 For the 18, 28 and 40 pin devices the buses on devices are largely upwards compatible - pin connections on an 18-pin device appear on a 28-pin device and a 40-pin device, and pins on a 28-pin device appear on a 40-pin device. This allows the 18, 28 and 40 pin DIL sockets to be connected in parallel with the PICmicro bus structure intact. * This parallel connection is not possible with 8, 14 and 20 pin devices due to programming requirements which means that there are anomalies with the pin connections for the 8, 14 and 20 pin devices as follows: Multiprogrammer port line Connection pin on 20 pin device 20 pin port line RB2 5 RA2 RB6 6 RA1 RB7 7 RA0 Multiprogrammer port line Connection pin on 14 pin device 14 pin port line RB2 5 RA2 RB6 6 RA1 RB7 7 RA0 Multiprogrammer port line Connection pin on 8 pin device 8 pin port line RB2 1 RA2 RB6 12 RA1 RB7 13 RA0 |
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