PIC16F19176-I/PT - 28KB Flash 8-bit LCD MCU | Microchip
MPN： PIC16F19176-I/PT ✓ 啟用中PIC16F19176-I/PT 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals into one package. The PIC16F19176 belongs to the 8-bit RISC PIC family within Microchip's microcontroller hierarchy (8-bit MCU -> PIC16 -> PIC16F19XX), targeting low-power LCD-driven embedded designs with rich Core Independent Peripherals (CIPs) such as CWG, SMT, ZCD, and PPS.
Key features include 12-bit ADC2 with computation, 5-bit DAC, low-power comparators, PWM/CCP/CWG/SMT/ZCD/PPS, Real-Time Clock/Calendar (RTCC), and an integrated charge pump that supports LCD bias generation directly from a single Li-ion battery. The device supports 2.3V-5.5V operation across an industrial -40C to +85C temperature range, with nanoWatt XLP sleep currents below 60 nA typical.
Architecturally, the PIC16F19176 uses a modified Harvard RISC core with a 14-bit instruction word and 32-level hardware stack. The device integrates Intelligent Analog peripherals and CIPs that execute logic without CPU intervention, freeing the core for power management and user tasks. The LCD driver supports up to 8 common planes and works with the integrated charge pump, eliminating the need for an external bias-boost circuit in single-cell battery designs.
Typical applications include battery-powered blood glucose meters and other medical LCD instruments, industrial HMI panels with segment displays, smart thermostats, portable consumer electronics with always-on LCDs, IoT sensor nodes with visual readouts, and metering/utility end equipment requiring long battery life combined with a user-visible LCD.
When designing with this part, ensure that segment and common pin allocation is mapped through the PPS (Peripheral Pin Select) and LCD register configuration, and verify charge-pump capacitor values from the manufacturer datasheet. For sleep-mode designs, the RTCC with its dedicated 32 kHz crystal domain and the Low-Power Sleep mode typically extend battery life into multi-year ranges on a single CR2032.
This page synthesizes Microchip distributor pricing, drop-in alternatives within the PIC16F19XX family, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16F19176-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F19176-I/PT （相同外形與佔位） — 差異在於 Package, Operating Temperature, LCD Driver, ADC, Comparators.
PIC16F19175-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F19176-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC16F19176-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16F19175-E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18877-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F19176-I/PT 最大額定值與電氣特性
| Product Family | PIC16F19XX (PIC16F19176) |
| Core | 8-bit PIC RISC (14-bit instruction word) |
| CPU Speed | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data Memory (RAM) | 2 KB |
| Data EEPROM | 256 bytes |
| 封裝 | 44-pin TQFP (PT) 10x10 mm |
| 安裝類型 | Surface Mount |
| Operating Voltage Range | 2.3 V to 5.5 V |
| 工作溫度範圍 | -40 C to +85 C (industrial, -I suffix) |
| ADC | 12-bit ADC2 with computation, up to 35 channels |
| DAC | 5-bit DAC |
| LCD Driver | Integrated, supports up to 8 common planes with charge pump |
| Timers | PWM, CCP, CWG, SMT, ZCD, RTCC |
| I/O Pins | 36 high-current I/O |
| Connectivity | PPS (Peripheral Pin Select) |
| Comparators | Low-power comparators |
| MSL 等級 | 3 (168 hours) |
| RoHS 狀態 | Compliant |
PIC16F19176-I/PT 腳位配置
| 腳位 1 | SEG24/RP5 — LCD segment 24 / Remappable peripheral pin 5 / I/O |
| 腳位 2 | SEG25/RP6 — LCD segment 25 / Remappable peripheral pin 6 / I/O |
| 腳位 3 | SEG26/RP7 — LCD segment 26 / Remappable peripheral pin 7 / I/O |
| 腳位 4 | SEG27/RP8 — LCD segment 27 / Remappable peripheral pin 8 / I/O |
| 腳位 5 | SEG28/RP9 — LCD segment 28 / Remappable peripheral pin 9 / I/O |
| 腳位 6 | SEG29/RP10 — LCD segment 29 / Remappable peripheral pin 10 / I/O |
| 腳位 7 | SEG30/RP11 — LCD segment 30 / Remappable peripheral pin 11 / I/O |
| 腳位 8 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| 腳位 9 | SEG31/RP12 — LCD segment 31 / Remappable peripheral pin 12 / I/O |
| 腳位 10 | SEG32/RP13 — LCD segment 32 / Remappable peripheral pin 13 / I/O |
| 腳位 11 | SEG33/RP14 — LCD segment 33 / Remappable peripheral pin 14 / I/O |
| 腳位 12 | RA0/ANA0 — PORTA bit 0 / analog input 0 |
| 腳位 13 | RA1/ANA1 — PORTA bit 1 / analog input 1 |
| 腳位 14 | RA2/ANA2 — PORTA bit 2 / analog input 2 |
| 腳位 15 | RA3/ANA3 — PORTA bit 3 / analog input 3 |
| 腳位 16 | RA4/ANA4 — PORTA bit 4 / analog input 4 |
| 腳位 17 | RA5/ANA5 — PORTA bit 5 / analog input 5 |
| 腳位 18 | RA6/ANA6 — PORTA bit 6 / analog input 6 / ICSPCLK |
| 腳位 19 | RA7/ANA7 — PORTA bit 7 / analog input 7 / ICSPDAT |
| 腳位 20 | VSS — Ground reference |
| 腳位 21 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| 腳位 22 | RB0/INT/CCP1 — PORTB bit 0 / external interrupt / CCP1 |
| 腳位 23 | RB1/CPS — PORTB bit 1 / capacitive touch sensing |
| 腳位 24 | RB2/CPS — PORTB bit 2 / capacitive touch sensing |
| 腳位 25 | RB3/CPS — PORTB bit 3 / capacitive touch sensing |
| 腳位 26 | RB4/CPS — PORTB bit 4 / capacitive touch sensing |
| 腳位 27 | RB5/CPS — PORTB bit 5 / capacitive touch sensing |
| 腳位 28 | RB6/ICSPCLK — PORTB bit 6 / in-circuit serial programming clock |
| 腳位 29 | RB7/ICSPDAT — PORTB bit 7 / in-circuit serial programming data |
| 腳位 30 | VSS — Ground reference |
| 腳位 31 | RC0 — PORTC bit 0 / I/O |
| 腳位 32 | RC1 — PORTC bit 1 / I/O |
| 腳位 33 | RC2 — PORTC bit 2 / I/O |
| 腳位 34 | RC3 — PORTC bit 3 / I/O |
| 腳位 35 | RC4 — PORTC bit 4 / I/O |
| 腳位 36 | RC5 — PORTC bit 5 / I/O |
| 腳位 37 | RC6 — PORTC bit 6 / I/O |
| 腳位 38 | RC7 — PORTC bit 7 / I/O |
| 腳位 39 | RD0 — PORTD bit 0 / I/O |
| 腳位 40 | RD1 — PORTD bit 1 / I/O |
| 腳位 41 | RD2 — PORTD bit 2 / I/O |
| 腳位 42 | RD3 — PORTD bit 3 / I/O |
| 腳位 43 | RE0 — PORTE bit 0 / I/O |
| 腳位 44 | RE1 — PORTE bit 1 / I/O |
典型應用
PIC16F19176-I/PT 適用於 6 應用s: Battery-Powered Medical Meter LCD, Industrial HMI Segment Display, Smart Thermostat with Always-On LCD, Portable Consumer Electronics with LCD, IoT Sensor Node with Local Display, Utility Metering End Equipment.
Battery-Powered Medical Meter LCD
The PIC16F19176-I/PT is ideally suited to battery-powered medical meters such as blood-glucose meters, pulse oximeters, and infrared thermometers because it integrates a 12-bit ADC2 (up to 35 channels), 5-bit DAC, and a segment LCD driver with charge pump on a single die. The XLP nanoWatt sleep mode keeps idle current below 60 nA typical, enabling multi-year operation on a single CR2032 coin cell. The 28 KB Flash accommodates state-machine firmware, lookup tables, and BLE command interfaces for the meter.
推薦
Industrial HMI Segment Display
In industrial HMI panels with multi-digit seven-segment or 14-segment displays, the PIC16F19176-I/PT drives the segment LCD directly through its integrated driver and charge pump, eliminating external bias-voltage hardware. The Core Independent Peripherals (CWG, SMT, ZCD) handle zero-crossing detection for triac-based phase control without CPU wake-up, freeing the 8 MIPS core for keypad debouncing, Modbus RTU, and EEPROM-based parameter storage. The 44-TQFP exposes the full segment bus for 8 common planes.
推薦
Smart Thermostat with Always-On LCD
Smart thermostats benefit from the PIC16F19176-I/PT's integrated LCD with charge pump plus the Real-Time Clock/Calendar (RTCC) domain, which can run from a 32.768 kHz crystal while the core sleeps, drawing nanoWatt standby current. The 12-bit ADC2 supports multiple NTC temperature sensors and the humidity sensor interface, while the 5-bit DAC drives a piezo buzzer for keypad feedback. The device's 36 high-current I/O lines drive segment backplane bias and relay drivers without external buffers.
推薦
Portable Consumer Electronics with LCD
Handheld consumer devices (kitchen scales, pedometers, portable audio recorders, e-readers with simple status displays) fit the PIC16F19176-I/PT profile: low cost, 2.3-5.5 V battery range, integrated LCD that avoids extra boost ICs, and eXtreme Low-Power modes. The 8 MIPS core runs user-interface state machines, while the SMT (Signal Measurement Timer) and ZCD handle capacitive-touch and AC-line-synchronized sensing without burdening the CPU. PPS maps peripherals to any I/O for BOM-routing flexibility.
推薦
IoT Sensor Node with Local Display
Wireless sensor endpoints with on-device LCD readouts (LoRa/BLE environmental monitors, smart agriculture sensors) leverage the PIC16F19176-I/PT's XLP sleep (<60 nA), integrated LCD charge pump, and 12-bit ADC for direct sensor measurement. The RTCC provides timestamped wake-ups for periodic sampling, and the CWG/SMT peripherals manage pump or fan PWM without core intervention. The 28 KB Flash fits LoRaWAN or BLE application stacks plus sensor-fusion logic with room for OTA staging.
推薦
Utility Metering End Equipment
Electricity, water, and gas meters require multi-year battery life, always-on LCD readouts, and tamper detection - exactly the PIC16F19176-I/PT design point. The integrated LCD driver with charge pump operates from a single 3.6 V Li-SOCl2 cell, while the low-power comparators detect meter tampering. The 256 B EEPROM stores calibration and tamper logs, the RTCC enables time-of-use billing schedules, and XLP nanoWatt sleep keeps idle current below 60 nA typical for 10+ year deployments.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F19176-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F19175-I/PT | PIC16F19176-I/P | PIC16F19176-I/MV | PIC16F19175-E/PT | PIC16F18877-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm - same | 40-pin PDIP (P) - through-hole, NOT TQFP-pin compatible | 44-pin TQFP (MV) - same die/pinout, packaging variant | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Flash Memory | 28 KB | 32 KB (+14%) | 28 KB (same) | 28 KB (same) | 32 KB (+14%) | 56 KB (+100%) |
| RAM | 2 KB | 2 KB (same) | 2 KB (same) | 2 KB (same) | 2 KB (same) | 4 KB (+100%) |
| EEPROM | 256 B | 256 B (same) | 256 B (same) | 256 B (same) | 256 B (same) | 256 B (same) |
| CPU Speed | 32 MHz / 8 MIPS | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| Integrated LCD Driver | Yes (with charge pump) | Yes (same) | Yes (same) | Yes (same) | Yes (same) | No (different die, no LCD) |
| Operating Temperature | -40 C to +85 C (industrial -I) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +125 C (extended -E) | -40 C to +85 C (same) |
主要差異化特點
- Integrated LCD driver with charge pump on die (對比PIC16F18877-I/PT)
- Same 44-TQFP pinout as PIC16F19175-I/PT (對比PIC16F19175-I/PT)
- NanoWatt XLP sleep below 60 nA typical (對比PIC16F18877-I/PT)
設計說明
Estimated: at 32 MHz active from a 3.3 V supply, the PIC16F19176 core draws roughly 5-7 mA typical, so design the upstream LDO/regulator for at least 10 mA peak. Use a 1 uF ceramic bypass on each VDD/VSS pin pair plus a bulk 10 uF on the main rail. For sleep-mode designs, the XLP nanoWatt Sleep current is specified below 60 nA typical; verify that pull-ups on MCLR and unused I/O do not raise the actual sleep floor.
Keep the ICSP/PGD/PGC trace pair short and away from switching lines to prevent programming errors. Place the 32.768 kHz crystal traces within 5 mm of the SOSCO/SOSCI pins with a ground guard ring, because the RTCC domain drives display wake-up timing. The 44-TQFP exposes the full segment LCD bus; route these traces as short parallel paths to the LCD glass connector with a ground shield to suppress crosstalk on the high-impedance segment nodes.
Do not skip the CONFIG words: the WDT must be disabled for XLP Sleep designs unless intentional, the BOR voltage must be selected for the actual battery curve (2.0 V for Li-SOCl2), and the LFEXTOSC setting must match the RTCC crystal load capacitance. When migrating from PIC16F19176-I/P to /PT, the IVT layout shifts slightly with Flash size; recompile and verify the linker vector addresses. The integrated LCD charge pump requires external capacitors per the datasheet - omitting them will silently disable the LCD bias generation.
For the 44-TQFP (PT) footprint, leave at least 0.25 mm clearance between analog (ADC/DAC/comparator) pins and digital switching lines; the 12-bit ADC2 will alias fast edges if isolation is poor. Use a single-star ground at the device VSS pin rather than a bus, and keep analog and digital ground returns separated until they merge at the power-entry bulk capacitor. If the LCD glass sits more than 50 mm from the MCU, consider a segment-driver buffer to preserve rise/fall time on the bias waveforms.
合規資訊
RoHS-compliant per Microchip product page. The -I industrial temperature grade is not AEC-Q100 qualified; Microchip's PIC16F19XX family does not include automotive-qualified (Q-grade) variants for this die.