PIC18F452-I/PT Microcontroller 8K Flash 368 RAM 20MHz 40-Pin TQFP IC
High-performance RISC CPU with 8K x 14 Flash program memory, 368 x 8 bytes RAM, and 256 x 8 bytes EEPROM. Operates up to 20 MHz with 200 ns instruction cycle. Ideal for embedded control and industrial applications.
PIC18F452-I/PT Microcontroller crt tv components timer ic chip
DEVICE OVERVIEW
This document contains device specific information for the following devices:
PIC18F242
• PIC18F442
• PIC18F252
• PIC18F452
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-toDigital (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.
Microcontroller Core Features:
• High-performance RISC CPU
• Only 35 single word instructions to learn
• All single cycle instructions except for program branches which are two cycle
• Operating speed:
DC - 20 MHz clock input
DC - 200 ns instruction cycle
• Up to 8K x 14 words of FLASH Program Memory, Up to 368 x 8 bytes of Data Memory (RAM) Up to 256 x 8 bytes of EEPROM data memory
• Pinout compatible to the PIC16C73B/74B/76/77
• Interrupt capability (up to 14 sources)
• Eight level deep hardware stack
• Direct, indirect and relative addressing modes
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