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PIC18F2455_07 Datasheet, PDF (3/430 Pages) Microchip Technology – 28/40/44-Pin, High Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology | |||
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PIC18F2455/2550/4455/4550
28/40/44-Pin, High-Performance, Enhanced Flash,
USB Microcontrollers with nanoWatt Technology
Universal Serial Bus Features:
⢠USB V2.0 Compliant
⢠Low Speed (1.5 Mb/s) and Full Speed (12 Mb/s)
⢠Supports Control, Interrupt, Isochronous and Bulk
Transfers
⢠Supports up to 32 Endpoints (16 bidirectional)
⢠1-Kbyte Dual Access RAM for USB
⢠On-Chip USB Transceiver with On-Chip Voltage
Regulator
⢠Interface for Off-Chip USB Transceiver
⢠Streaming Parallel Port (SPP) for USB streaming
transfers (40/44-pin devices only)
Power-Managed Modes:
⢠Run: CPU on, peripherals on
⢠Idle: CPU off, peripherals on
⢠Sleep: CPU off, peripherals off
⢠Idle mode currents down to 5.8 μA typical
⢠Sleep mode currents down to 0.1 μA typical
⢠Timer1 Oscillator: 1.1 μA typical, 32 kHz, 2V
⢠Watchdog Timer: 2.1 μA typical
⢠Two-Speed Oscillator Start-up
Flexible Oscillator Structure:
⢠Four Crystal modes, including High Precision PLL
for USB
⢠Two External Clock modes, up to 48 MHz
⢠Internal Oscillator Block:
- 8 user-selectable frequencies, from 31 kHz
to 8 MHz
- User-tunable to compensate for frequency drift
⢠Secondary Oscillator using Timer1 @ 32 kHz
⢠Dual Oscillator options allow microcontroller and
USB module to run at different clock speeds
⢠Fail-Safe Clock Monitor:
- Allows for safe shutdown if any clock stops
Peripheral Highlights:
⢠High-Current Sink/Source: 25 mA/25 mA
⢠Three External Interrupts
⢠Four Timer modules (Timer0 to Timer3)
⢠Up to 2 Capture/Compare/PWM (CCP) modules:
- Capture is 16-bit, max. resolution 5.2 ns (TCY/16)
- Compare is 16-bit, max. resolution 83.3 ns (TCY)
- PWM output: PWM resolution is 1 to 10-bit
⢠Enhanced Capture/Compare/PWM (ECCP) module:
- Multiple output modes
- Selectable polarity
- Programmable dead time
- Auto-shutdown and auto-restart
⢠Enhanced USART module:
- LIN bus support
⢠Master Synchronous Serial Port (MSSP) module
supporting 3-wire SPI (all 4 modes) and I2Câ¢
Master and Slave modes
⢠10-bit, up to 13-channel Analog-to-Digital Converter
module (A/D) with Programmable Acquisition Time
⢠Dual Analog Comparators with Input Multiplexing
Special Microcontroller Features:
⢠C Compiler Optimized Architecture with optional
Extended Instruction Set
⢠100,000 Erase/Write Cycle Enhanced Flash
Program Memory typical
⢠1,000,000 Erase/Write Cycle Data EEPROM
Memory typical
⢠Flash/Data EEPROM Retention: > 40 years
⢠Self-Programmable under Software Control
⢠Priority Levels for Interrupts
⢠8 x 8 Single-Cycle Hardware Multiplier
⢠Extended Watchdog Timer (WDT):
- Programmable period from 41 ms to 131s
⢠Programmable Code Protection
⢠Single-Supply 5V In-Circuit Serial
Programming⢠(ICSPâ¢) via two pins
⢠In-Circuit Debug (ICD) via two pins
⢠Optional dedicated ICD/ICSP port (44-pin devices only)
⢠Wide Operating Voltage Range (2.0V to 5.5V)
Device
Program Memory
Data Memory
Flash
# Single-Word
SRAM EEPROM
I/O
10-Bit CCP/ECCP
A/D (ch) (PWM)
SPP
(bytes) Instructions (bytes) (bytes)
MSSP
SPI
Master
I2Câ¢
PIC18F2455 24K
PIC18F2550 32K
PIC18F4455 24K
PIC18F4550 32K
12288
16384
12288
16384
2048
256
24
10
2048
256
24
10
2048
256
35
13
2048
256
35
13
2/0
No Y
Y
1
2/0
No Y
Y
1
1/1
Yes Y
Y
1
1/1
Yes Y
Y
1
Timers
8/16-Bit
2 1/3
2 1/3
2 1/3
2 1/3
© 2007 Microchip Technology Inc.
Preliminary
DS39632D-page 1
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