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PIC18F242 データシート(PDF) 9 Page - Microchip Technology |
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PIC18F242 データシート(HTML) 9 Page - Microchip Technology |
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9 / 332 page  © 2006 Microchip Technology Inc. DS39564C-page 7 PIC18FXX2 1.0 DEVICE OVERVIEW This document contains device specific information for the following devices: These devices come in 28-pin and 40/44-pin packages. The 28-pin devices do not have a Parallel Slave Port (PSP) implemented and the number of Analog-to- Digital (A/D) converter input channels is reduced to 5. An overview of features is shown in Table 1-1. The following two figures are device block diagrams sorted by pin count: 28-pin for Figure 1-1 and 40/44-pin for Figure 1-2. The 28-pin and 40/44-pin pinouts are listed in Table 1-2 and Table 1-3, respectively. TABLE 1-1: DEVICE FEATURES •PIC18F242 •PIC18F442 •PIC18F252 •PIC18F452 Features PIC18F242 PIC18F252 PIC18F442 PIC18F452 Operating Frequency DC - 40 MHz DC - 40 MHz DC - 40 MHz DC - 40 MHz Program Memory (Bytes) 16K 32K 16K 32K Program Memory (Instructions) 8192 16384 8192 16384 Data Memory (Bytes) 768 1536 768 1536 Data EEPROM Memory (Bytes) 256 256 256 256 Interrupt Sources 17 17 18 18 I/O Ports Ports A, B, C Ports A, B, C Ports A, B, C, D, E Ports A, B, C, D, E Timers 4 4 4 4 Capture/Compare/PWM Modules 2 2 2 2 Serial Communications MSSP, Addressable USART MSSP, Addressable USART MSSP, Addressable USART MSSP, Addressable USART Parallel Communications — — PSP PSP 10-bit Analog-to-Digital Module 5 input channels 5 input channels 8 input channels 8 input channels RESETS (and Delays) POR, BOR, RESET Instruction, Stack Full, Stack Underflow (PWRT, OST) POR, BOR, RESET Instruction, Stack Full, Stack Underflow (PWRT, OST) POR, BOR, RESET Instruction, Stack Full, Stack Underflow (PWRT, OST) POR, BOR, RESET Instruction, Stack Full, Stack Underflow (PWRT, OST) Programmable Low Voltage Detect Yes Yes Yes Yes Programmable Brown-out Reset Yes Yes Yes Yes Instruction Set 75 Instructions 75 Instructions 75 Instructions 75 Instructions Packages 28-pin DIP 28-pin SOIC 28-pin DIP 28-pin SOIC 40-pin DIP 44-pin PLCC 44-pin TQFP 40-pin DIP 44-pin PLCC 44-pin TQFP |
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