PIC18F44K22

Part: PIC18F45K22-I/PT — Microchip Technology

Type: 8-bit PIC18 Microcontroller with XLP Technology

Description: 40/44-pin, low-power 8-bit PIC18 MCU with 32 KB Flash, 1536 bytes SRAM and 256 bytes EEPROM, running at up to 64 MHz (16 MIPS) from a 2.3–5.5 V supply.

Operating Conditions:

• Supply voltage: 2.3–5.5 V (PIC18F45K22); 1.8–3.6 V for the PIC18LF45K22 variant
• Operating temperature: -40 to +85 °C (industrial); extended range to +125 °C is shown in the voltage-frequency graphs
• Max clock: 64 MHz using the 4x PLL (16 MIPS)

Absolute Maximum Ratings:

• Max supply voltage (VDD to VSS, PIC18F2X/4XK22): -0.3 to +6.5 V
• Voltage on MCLR with respect to VSS: 0 to +11.0 V
• Max current into VDD pin: 200 mA (-40 to +85 °C); 85 mA (+85 to +125 °C)
• Max current out of VSS pin: 300 mA (-40 to +85 °C); 125 mA (+85 to +125 °C)
• Max current per I/O pin: 25 mA sink / 25 mA source
• Ambient temperature under bias: -40 to +125 °C
• Storage temperature: -65 to +150 °C
• Total power dissipation: 1.0 W

Key Specs:

• Program memory: 32 KB Flash (16384 single-word instructions)
• Data memory: 1536 bytes SRAM, 256 bytes EEPROM
• I/O: 36 pins (one input-only)
• ADC: 10-bit, up to 30 channels
• Internal oscillator: 16 MHz, factory calibrated to ±1%, selectable 31 kHz to 16 MHz
• Sleep current: 20 nA typical; Watchdog Timer 300 nA typical; Timer1 oscillator 800 nA at 32 kHz
• Max I/O current: 25 mA sink / 25 mA source per pin
• Voltage-frequency limits (LF devices): 64 MHz at 2.7–3.6 V (-40 to +85 °C)

Features:

• C-compiler optimized RISC architecture, 8x8 single-cycle hardware multiplier, 31-level hardware stack
• 4x PLL, fail-safe clock monitor, two-speed start-up
• Two analog comparators, 5-bit DAC, fixed voltage reference (1.024/2.048/4.096 V)
• Charge Time Measurement Unit (CTMU) for capacitive touch sensing
• Two CCP and three ECCP modules, with PWM features including dead time and auto-shutdown
• Two MSSP modules (SPI and I²C) and two EUSARTs (RS-485, RS-232, LIN)
• SR latch, high/low-voltage detect, programmable brown-out reset
• Extended watchdog timer (4 ms to 131 s)
• Self-programmable flash, ICSP and in-circuit debug

Applications:

• Capacitive touch sensing (touch screens and capacitive switches)
• Low-power and battery-powered embedded control

Package:

• 44-TQFP (PT suffix)
• 40-PDIP
• 40-UQFN
• 44-QFN

• Analog-to-Digital Converter (ADC) module:
• -10-bit resolution, up to 30 external channels
• -Auto-acquisition capability
• -Conversion available during Sleep
• -Fixed Voltage Reference (FVR) channel
• -Independent input multiplexing
• Analog Comparator module:
• -Two rail-to-rail analog comparators
• -Independent input multiplexing
• Digital-to-Analog Converter (DAC) module:
• -Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels
• -5-bit rail-to-rail resistive DAC with positive and negative reference selection
• Charge Time Measurement Unit (CTMU) module:
• -Supports capacitive touch sensing for touch screens and capacitive switches

Note 1: PIC18(L)F2XK22 devices.

• 2: PIC18(L)F4XK22 devices.
• 3: Function default pin.
• 4: Function default pin (28-pin devices).
• 5: Function default pin (40/44-pin devices).
• 6: Function alternate pin.
• 7: Function alternate pin (28-pin devices).
• 8: Function alternate pin (40/44-pin devices)

• Note 1: Power dissipation is calculated as follows: Pdis = VDD x {IDD - IOH} + {(VDD - VOH) x IOH} + (VOL x IOL)
• 2: Voltage spikes below VSS at the MCLR/VPP/RE3 pin, inducing currents greater than 80 mA, may cause latch-up. Thus, a series resistor of 50-100 should be used when applying a 'low' level to the MCLR/VPP/ RE3 pin, rather than pulling this pin directly to VSS.

† NOTICE: Stresses above those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

FIGURE 27-1: PIC18LF2X/4XK22 FAMILY VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL TEMPERATURE)

Note 1: Maximum Frequency 20 MHz, 1.8V to 2.7V, -40°C to +85°C

2: Maximum Frequency 64 MHz, 2.7V to 3.6V, -40°C to +85°C

FIGURE 27-2: PIC18LF2X/4XK22 FAMILY VOLTAGE-FREQUENCY GRAPH (EXTENDED TEMPERATURE)

Note 1:

Maximum Frequency 16 MHz, 1.8V to 2.7V, +85°C to +125°C

2: Maximum Frequency 48 MHz, 2.7V to 3.6V, +85°C to +125°C

FIGURE 27-3: PIC18F2X/4XK22 FAMILY VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL TEMPERATURE)

FIGURE 27-4: PIC18F2X/4XK22 FAMILY VOLTAGE-FREQUENCY GRAPH (EXTENDED TEMPERATURE)