Datasheet

 2011 Microchip Technology Inc. DS39931D-page 3
PIC18F46J50 FAMILY
Power Management Features with
nanoWatt XLP™ for Extreme Low-Power:
• Deep Sleep mode: CPU off, Peripherals off,
Currents Down to 13 nA and 850 nA with RTCC:
- Able to wake-up on external triggers,
programmable WDT or RTCC alarm
- Ultra Low-Power Wake-up (ULPWU)
• Sleep mode: CPU off, Peripherals off, SRAM on,
Fast Wake-up, Currents Down to 105 nA, Typical
• Idle: CPU off, Peripherals on, Currents Down to
2.3 A, Typical
• Run: CPU on, Peripherals on, Currents Down to
6.2 A, Typical
• Timer1 Oscillator w/RTCC: 1 A, 32 kHz, Typical
• Watchdog Timer: 0.8 µA, 2V, Typical
Special Microcontroller Features:
• Low-Power, High-Speed CMOS Flash Technology
• C Compiler Optimized Architecture for Re-Entrant Code
• Priority Levels for Interrupts
• Self-Programmable under Software Control
• 8 x 8 Single-Cycle Hardware Multiplier
• Extended Watchdog Timer (WDT):
- Programmable period from 4 ms to 131s
• Single-Supply In-Circuit Serial Programming™
(ICSP™) via two pins
• In-Circuit Debug (ICD) w/Three Breakpoints via 2 Pins
• Operating Voltage Range of 2.0V to 3.6V
• On-Chip 2.5V Regulator
• Flash Program Memory of 10,000 Erase/Write
Cycles Minimum and 20-Year Data Retention
Universal Serial Bus (USB) Features
• USB V2.0 Compliant
• Full Speed (12 Mbps) and Low Speed (1.5 Mbps)
• Supports Control, Interrupt, Isochronous and Bulk
Transfers
• Supports up to 32 Endpoints (16 bidirectional)
• USB module can use any RAM Location on the
Device as USB Endpoint Buffers
• On-Chip USB Transceiver with Crystal-less operation
Flexible Oscillator Structure:
• High-Precision Internal Oscillator (±0.15% typ.) for USB
• Two External Clock modes, up to 48 MHz (12 MIPS)
• Low-Power, 31 kHz Internal RC Oscillator
• Tunable Internal Oscillator (31 kHz to 8 MHz, or
up to 48 MHz with PLL)
• Secondary Oscillator using Timer1 @ 32 kHz
• Fail-Safe Clock Monitor:
- Allows for safe shutdown if any clock stops
• Two-Speed Oscillator Start-up
• Programmable Reference Clock Output Generator
Peripheral Highlights:
• Peripheral Pin Select:
- Allows independent I/O mapping of many
peripherals
- Continuous hardware integrity checking and
safety interlocks prevent unintentional
configuration changes
• Hardware Real-Time Clock and Calendar (RTCC):
- Provides clock, calendar and alarm functions
• High-Current Sink/Source 25 mA/25 mA
(PORTB and PORTC)
• 5.5V Tolerant Inputs (digital only pins)
• Four Programmable External Interrupts
• Four Input Change Interrupts
• Two Enhanced Capture/Compare/PWM (ECCP)
modules:
- One, two or four PWM outputs
- Selectable polarity
- Programmable dead time
- Auto-shutdown and auto-restart
- Pulse steering control
• Two Master Synchronous Serial Port (MSSP)
modules Supporting Three-Wire SPI (all four
modes) and I
2
C™ Master and Slave modes
• Full-Duplex Master/Slave SPI DMA Engine
• 8-Bit Parallel Master Port/Enhanced Parallel
Slave Port
• Two-Rail – Rail Analog Comparators with Input
Multiplexing
• 10-Bit, up to 13-Channel Analog-to-Digital (A/D)
Converter module:
- Auto-acquisition capability
- Conversion available during Sleep
- Self-calibration
• High/Low-Voltage Detect module
• Charge Time Measurement Unit (CTMU):
- Supports capacitive touch sensing for touch
screens and capacitive switches
- Provides a precise resolution time measure-
ment for both flow measurement and simple
temperature sensing
• Two Enhanced USART modules:
- Supports RS-485, RS-232 and LIN/J2602
- Auto-Wake-up on Start bit
• Auto-Baud Detect
28/44-Pin, Low-Power, High-Performance USB Microcontrollers