PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 3

• Manufacturer Part Number: PIC18F2455-I/SP
• Description: Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2455-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 23
• Interface: I2C/SPI/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 24K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

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
• Supports up to 32 endpoints (16 bidirectional)
• 256-byte dual access RAM for USB
• On-chip USB transceiver with on-chip voltage
• Interface for off-chip USB transceiver
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 A typical
• Sleep mode currents down to 0.1 A typical
• Timer1 oscillator: 1.8 A typical, 32 kHz, 2V
• Watchdog Timer: 2.1 A typical
• Two-Speed Oscillator Start-up
Flexible Oscillator Structure:
• Four Crystal modes, including High-Precision PLL
• Two External Clock modes, up to 48 MHz
• Internal 31 kHz oscillator
• Secondary oscillator using Timer1 @ 32 kHz
• Dual oscillator options allow microcontroller and
• Fail-Safe Clock Monitor:
© 2006 Microchip Technology Inc.
PIC18F2450
PIC18F4450
28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash,
bulk transfers
regulator
for USB
USB module to run at different clock speeds
- Allows for safe shutdown if any clock stops
Device
*
Includes 256 bytes of dual access RAM used by USB module and shared with data memory.
USB Microcontrollers with nanoWatt Technology
(bytes)
Flash
16K
16K
Program Memory
# Single-Word
Instructions
8192
8192
Advance Information
Memory
(bytes)
SRAM
Data
768*
768*
I/O
23
34
Peripheral Highlights:
• High-current sink/source: 25 mA/25 mA
• Three external interrupts
• Three Timer modules (Timer0 to Timer2)
• Capture/Compare/PWM (CCP) module:
• Enhanced USART module:
• 10-bit, up to 13-channel Analog-to-Digital Converter
Special Microcontroller Features:
• C compiler optimized architecture with optional
• Flash memory retention: > 40 years
• Self-programmable under software control
• Priority levels for interrupts
• 8 x 8 Single-Cycle Hardware Multiplier
• Extended Watchdog Timer (WDT):
• Programmable Code Protection
• Single-Supply In-Circuit Serial Programming™
• In-Circuit Debug (ICD) via two pins
• Optional dedicated ICD/ICSP port
• Wide operating voltage range (2.0V to 5.5V)
- Capture is 16-bit, max. resolution 5.2 ns
- Compare is 16-bit, max. resolution 83.3 ns
- PWM output: PWM resolution is 1 to 10-bit
- LIN bus support
module (A/D):
- Up to 100 ksps sampling rate
- Programmable acquisition time
extended instruction set
- Programmable period from 4 ms to 131s
(ICSP™) via two pins
(44-pin TQFP devices only)
PIC18F2450/4450
10-Bit A/D
(ch)
10
13
CCP
1
1
EUSART
1
1
DS39760A-page 1
8/16-Bit
Timers
1/2
1/2