PIC16F18146-I/P

The PIC16F181 microcontroller family has a suite of analog peripherals that enables precision sensor applications. This product family is available from 8 to 44 - pin packages in a memory range of 7 KB to 28 KB, with speeds up to 32 MHz. This product includes a 12 - bit differential Analog - to - Digital Converter with Computation (ADCC), two 8 - bit Digital - to - Analog Converters (DAC), a 16 - bit Pulse - Width Modulation (PWM) peripheral, and many more waveform control and communication peripherals. This small form factor, feature - rich device is well suited for low - cost, energy - efficient analog sensor applications with higher resolution requirements.

Key features

• C Compiler Optimized RISC Architecture
• Operating Speed:
• DC – 32 MHz clock input
• 125 ns minimum instruction time
• 16 - Level Deep Hardware Stack
• Low - Current Power - on Reset (POR)
• Configurable Power - up Timer (PWRT)
• Brown - out Reset (BOR)
• Low - Power Brown - out Reset (LPBOR)
• Windowed Watchdog Timer (WWDT)
• Up to 28 KB of Program Flash Memory
• Up to 2 KB of Data SRAM Memory
• Up to 256 Bytes of Data EEPROM Memory
• Memory Access Partition (MAP) with Program Flash Memory Partitioned into:
• Application block
• Boot block
• Storage Area Flash (SAF) block
• Programmable Code Protection and Write Protection
• Device Information Area (DIA) Stores:
• Temperature Indicator calibration coefficients
• Fixed Voltage Reference (FVR) measurement data
• Microchip Unique Identifier (MUI)
• Device Characteristics Area (DCI) Stores:
• Program/erase row sizes
• Pin count details
• Direct, Indirect, and Relative Addressing Modes
• Operating Voltage Range: 1.8V to 5.5V
• Temperature Range:
• Industrial: - 40℃ to 85℃
• Extended: - 40℃ to 125℃
• Doze: CPU and Peripherals Running at Different Cycle Rates (typically CPU is lower)
• Idle: CPU Halted While Peripherals Operate
• Sleep:
• Lowest power consumption
• Reduce system electrical noise while performing ADC conversions
• Peripheral Module Disable (PMD): Selectively Minimize the Active Power Consumption of Unused Peripherals
• Low Power Mode Features:
• Sleep current:
• <900 nA typical @3V/25℃ (WDT enabled)
• <600 nA typical @3V/25℃ (WDT disabled)
• Operating current:
• 48 μA typical @32 kHz, 3V/25℃
• <1 mA typical @4 MHz, 5V/25℃
• Two Capture/Compare/PWM (CCP) Modules:
• 16 - bit resolution for Capture/Compare modes
• 10 - bit resolution for PWM mode
• Up to Four Pulse - Width Modulators (PWM):
• 16 - bit resolution
• Independent pulse outputs
• External Reset Signal (ERS) inputs
• Four Configurable Logic Cells (CLC): Integrated combinational and sequential logic
• One Complimentary Waveform Generator (CWG):
• Rising and falling edge dead - band control
• Full - bridge, half - bridge, 1 - channel drive
• Multiple signal sources
• Programmable dead band
• Fault - shutdown input
• Up to Three 8 - Bit Timers (TMR2/4/6) with Hardware Limit Timer (HLT)
• One Numerically Controlled Oscillator (NCO):
• Generates true linear frequency control and increased frequency resolution
• Input clock up to 64 MHz
• Programmable CRC with Memory Scan:
• Reliable data/program memory monitoring for Fail - Safe operation (e.g., Class B)
• Calculate 32 - bit CRC over any portion of Program Flash Memory
• Two Enhanced Universal Synchronous Asynchronous Receiver Transmitters (EUSART):
• RS - 232, RS - 485, LIN compatible
• Auto - wake - up on Start
• Two Host Synchronous Serial Ports (MSSP):
• Serial Peripheral Interface (SPI) mode
• Chip Select Synchronization
• Inter - Integrated Circuit (I²C) mode
• 7/10 - bit Addressing modes
• Peripheral Pin Select (PPS): Enables pin mapping of digital I/O
• Device I/O Port Features:
• Up to 35 I/O pins
• One input - only pin
• Individual I/O direction, open - drain, input threshold, slew rate, and weak pull - up control
• Interrupt - on - Change (IOC) on up to 25 pins
• One external interrupt pin
• Differential Analog - to - Digital Converter with Computation (ADCC):
• 12 - bit resolution
• Up to 35 external positive input channels
• Up to 17 external negative input channels
• Seven internal input channels
• Internal ADC oscillator (ADCRC)
• Operates in Sleep
• Selectable Auto - Conversion Trigger (ACT) sources
• Two 8 - Bit Digital - to - Analog Converters (DAC):
• Output available on up to two I/O pins
• Internal connections to ADC and Comparators
• Two Comparators (CMP):
• Up to four external inputs
• Configurable output polarity
• External output via Peripheral Pin Select
• Zero - Cross Detect (ZCD): Detect when AC signal on pin crosses ground
• Two Fixed Voltage References (FVR):
• Selectable 1.024V, 2.048V and 4.096V output levels
• FVR1 internally connected to ADC
• FVR2 internally connected to Comparator
• High - Precision Internal Oscillator Block (HFINTOSC):
• Selectable frequencies up to 32 MHz ±2% at calibration
• Active Clock Tuning of HFINTOSC for improved accuracy
• Internal 31 kHz Oscillator (LFINTOSC)
• External 32 kHz Secondary Oscillator (SOSC)
• External High - Frequency Clock Input:
• Three Crystal/Resonator modes
• Two External Clock (EC) Power modes
• 4x PLL available for external sources
• Fail - Safe Clock Monitor: Allows for operational recovery if the external clock source stops
• Oscillator Start - up Timer (OST): Ensures the stability of crystal oscillator sources
• In - Circuit Serial Programming™ (ICSP™)