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PIC18F45J10 Datasheet(PDF) 10 Page - Microchip Technology |
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PIC18F45J10 Datasheet(HTML) 10 Page - Microchip Technology |
10 / 368 page PIC18F45J10 FAMILY DS39682E-page 8 © 2009 Microchip Technology Inc. 1.2 Other Special Features • Communications: The PIC18F45J10 family incorporates a range of serial communication peripherals, including 1 independent Enhanced USART and 2 Master SSP modules capable of both SPI and I2C (Master and Slave) modes of operation. Also, one of the general purpose I/O ports can be reconfigured as an 8-bit Parallel Slave Port for direct processor-to-processor communications. • Self-Programmability: These devices can write to their own program memory spaces under internal software control. By using a bootloader routine, it becomes possible to create an application that can update itself in the field. • Extended Instruction Set: The PIC18F45J10 family introduces an optional extension to the PIC18 instruction set, which adds 8 new instruc- tions and an Indexed Addressing mode. This extension, enabled as a device configuration option, has been specifically designed to optimize re-entrant application code originally developed in high-level languages, such as C. • Enhanced CCP module: In PWM mode, this module provides 1, 2 or 4 modulated outputs for controlling half-bridge and full-bridge drivers. Other features include Auto-Shutdown, for disabling PWM outputs on interrupt or other select conditions and Auto-Restart, to reactivate outputs once the condition has cleared. • Enhanced Addressable USART: This serial communication module is capable of standard RS-232 operation and provides support for the LIN/J2602 protocol. Other enhancements include automatic baud rate detection and a 16-bit Baud Rate Generator for improved resolution. • 10-bit A/D Converter: This module incorporates programmable acquisition time, allowing for a channel to be selected and a conversion to be initiated without waiting for a sampling period and thus, reduce code overhead. • Extended Watchdog Timer (WDT): This enhanced version incorporates a 16-bit prescaler, allowing an extended time-out range that is stable across operating voltage and temperature. See Section 24.0 “Electrical Characteristics” for time-out periods. 1.3 Details on Individual Family Members Devices in the PIC18F45J10 family are available in 28-pin and 40/44-pin packages. Block diagrams for the two groups are shown in Figure 1-1 and Figure 1-2. The devices are differentiated from each other in five ways: 1. Flash program memory (16 Kbytes for PIC18F24J10/44J10 devices and 32 Kbytes for PIC18F25J10/45J10). 2. A/D channels (10 for 28-pin devices, 13 for 40/44-pin devices). 3. I/O ports (3 bidirectional ports on 28-pin devices, 5 bidirectional ports on 40/44-pin devices). 4. CCP and Enhanced CCP implementation (28-pin devices have 2 standard CCP mod- ules, 40/44-pin devices have one standard CCP module and one ECCP module). 5. Parallel Slave Port (present only on 40/44-pin devices). 6. One MSSP module for PIC18F24J10/25J10 devices and 2 MSSP modules for PIC18F44J10/45J10 devices 7. Parts designated with an “F” part number (i.e., PIC18F25J10) have a minimum VDD of 2.7 volts, whereas parts designated with an “LF” part number (i.e., PIC18LF25J10) can operate between 2.0-3.6 volts on VDD; however, VDDCORE should never exceed VDD. All of the other features for devices in this family are identical. These are summarized in Table 1-1. The pinouts for all devices are listed in Table 1-2 and Table 1-3. The PIC18F45J10 family of devices provides an on-chip voltage regulator to supply the correct voltage levels to the core. Parts designated with an “F” part number (such as PIC18F25J10) have the voltage regulator enabled. These parts can run from 2.7-3.6 volts on VDD but should have the VDDCORE pin connected to VSS through a low- ESR capacitor. Parts designated with an “LF” part number (such as PIC18LF24J10) do not enable the voltage regulator. An external supply of 2.0-2.7 Volts has to be supplied to the VDDCORE pin while 2.0-3.6 Volts can be supplied to VDD (VDDCORE should never exceed VDD). See Section 21.3 “On-Chip Voltage Regulator” for more details about the internal voltage regulator. |
Similar Part No. - PIC18F45J10_09 |
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Similar Description - PIC18F45J10_09 |
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