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PIC16F18877-I/PT

8-bit PIC16, 32MHz, 32KB Flash, CLC/NCO/ZCD CIPs, ADC2, TQFP-48, touch sensing

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Manufacturer Part：

PIC16F18877-I/PT

Package：

TQFP-48 (7.00 x 7.00 x 1.00 mm)

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Description

Product Overview

The PIC16F18877-I/PT from Microchip Technology is an 8-bit PIC16 MCU with 32KB Flash, 4KB SRAM, and 256B EEPROM in a TQFP-48 package. Featuring Core Independent Peripherals (CIPs) including CLC, NCO, and ZCD, it targets real-time control and intelligent sensing without CPU intervention.

Key Specifications

Core PIC16 (8-bit, 14-bit instruction word)
Max Frequency 32 MHz
Flash 32 KB
SRAM 4 KB
ADC 12-bit, 26 channels
DAC 5-bit, 2 channels
I/O Pins 36
Operating Temperature -40C to +85C

Features

  • Core Independent Peripherals (CIPs) for autonomous operation without CPU
  • 4 Configurable Logic Cells (CLC) for custom combinational logic
  • Numerically Controlled Oscillator (NCO) for precision frequency generation
  • Zero Cross Detect (ZCD) for AC mains synchronization
  • 12-bit ADC with Computation (ADC2) for automated signal analysis
  • Hardware Capacitive Voltage Divider (CVD) for touch sensing

Applications

  • Capacitive touch sensing user interfaces
  • Motor control with CIP-based autonomous PWM
  • Power metering with ZCD and ADC2
  • LED lighting control with NCO-based dimming

The PIC16F18877-I/PT from Microchip Technology is an 8-bit PIC16 microcontroller with 32KB Flash, 4KB SRAM, and 256B EEPROM in a TQFP-48 package. Operating at up to 32MHz, the device features Microchip’s Core Independent Peripherals (CIPs) that can operate autonomously without CPU intervention, significantly reducing firmware complexity and power consumption. Key CIPs include 4 Configurable Logic Cells (CLC) for custom combinational logic, a Numerically Controlled Oscillator (NCO) for precision frequency generation, Zero Cross Detect (ZCD) for AC mains synchronization, and a 12-bit ADC with Computation (ADC2) that automates signal acquisition, filtering, and threshold comparison. The Hardware Capacitive Voltage Divider (CVD) enables reliable capacitive touch sensing without external components. Communication interfaces include 2 MSSP (SPI/I2C), 2 EUSART, and 1 PICkit programming interface. Multiple PWM modules with complementary outputs support motor control and LED dimming applications.

The PIC16F18877 uses Microchip’s enhanced mid-range 8-bit core with CIP architecture. (1) Core: The PIC16 core executes 14-bit instruction words with most instructions executing in a single cycle at 32MHz (125ns instruction cycle). The hardware stack is 16 levels deep. (2) CIPs: Core Independent Peripherals can be interconnected using the Peripheral Interrupt Generator (PIR) and Data Signal Router (DSR) to create autonomous hardware-based state machines. For example, the ZCD can trigger the ADC2 which feeds the CLC which controls the PWM – all without CPU intervention. (3) CLC: Each of the 4 Configurable Logic Cells implements a 4-input look-up table (LUT) with selectable logic functions (AND-OR, OR-XOR, D flip-flop, etc.). CLCs can be cascaded and connected to peripheral outputs and I/O pins. (4) NCO: The 20-bit Numerically Controlled Oscillator generates precise frequency outputs using a phase accumulator with configurable increment value. Frequency resolution is FOSC/(2^20 x NCO increment). (5) ADC2: The 12-bit ADC with Computation automates sample accumulation, threshold comparison, and deviation detection, reducing CPU overhead for signal monitoring.

Pin Group Name Type Function
1-12 PORTA/B I/O GPIO, ADC, CLC, ZCD, NCO
13-24 PORTB/C I/O GPIO, SPI, I2C, UART, PWM
25-36 PORTC/D/E I/O GPIO, ADC, DAC, PWM, CVD
37-48 Power/Debug Mixed VDD, VSS, MCLR, PGD, PGC
  • Capacitive touch sensing user interfaces with CVD hardware support
  • Motor control with CIP-based autonomous PWM and CLC logic
  • Power metering with ZCD for AC mains synchronization and ADC2
  • LED lighting control with NCO-based precision dimming and CIP interconnect
Manufacturer Part Number Package Notes
Microchip PIC16F18876-I/PT TQFP-48 28KB Flash, smaller memory
Microchip PIC18F47Q10-I/PT TQFP-48 PIC18, 128KB, CIPs
TI MSP430FR2476TPTR TQFP-48 16-bit FRAM, 64KB
Renesas R5F104BCAxFB#V0 TQFP-48 RL78, 16-bit, low power
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Service & Packaging

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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