PIC16F1947-I/PT - 8-bit 32MHz XLP MCU 28KB Flash TQFP-64
料号： PIC16F1947-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 100 | $3.42 | $342.00 |
| 500 | $2.98 | $1,490.00 |
| 1,000 | $2.65 | $2,650.00 |
| 3,000 | $2.35 | $7,050.00 |
PIC16F1947-I/PT 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (RAM), and a rich set of peripherals such as timers, communication interfaces, ADCs, and I/O. Within the broader semiconductor hierarchy, MCUs sit at the intersection of microprocessors and application-specific ICs. The PIC16F19xx family targets cost-sensitive, ultra-low-power designs that must still deliver LCD drive, capacitive touch, and analog integration on-chip.
Key features include 1 KB RAM, 256 B EEPROM, a 10-bit ADC, an integrated LCD driver with up to 192 segments, multiple Enhanced USART, I2C, and SPI peripherals, and Microchip's nanoWatt XLP technology for deep sleep currents below 100 nA. The device offers 54 digital I/O pins across its 64-pin TQFP footprint and supports up to 16 MIPS throughput at 32 MHz. Core-independent peripherals such as the Configurable Logic Cell (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG) offload tasks from the CPU.
The PIC16F1947 architecture uses a 14-bit instruction word and Harvard bus structure, enabling single-cycle instruction execution except for branches. Its XLP implementation integrates dynamic hardware-managed power modes, peripheral module disable, and a low-power sleep controller, allowing wake-up from multiple interrupt sources while consuming microamps.
Typical applications include battery-powered sensor hubs, human-machine interface (HMI) panels with LCD readout, home appliances, instrumentation, and low-cost IoT edge nodes. The wide 1.8 V to 5.5 V range and integrated LCD segments directly support designs that previously required multiple chips or an external driver.
When designing, allocate the TQFP-64 land pattern early, route AVDD/AVSS as a star from the analog supply, and follow Microchip's MPLAB X IDE and XC8 compiler toolchain. Always validate in-circuit debug with the ICD 3 or PICkit 4.
This page synthesizes distributor pricing, drop-in and parametric alternatives, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single reference for sourcing, second-sourcing, and implementation guidance.
直接替换替代料： PIC16F1947-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F1947-I/PT （相同外形与封装尺寸） ——差异在于 LCD Driver, Package, ADC, Timers, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16F1946-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1947-I/PT
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →PIC16F1947-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1946-E/PT
✅ 直接替换✓ 有现货
$2.7 / 个
查看数据手册 →PIC16F1947-I/MR
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →PIC16F1947-I/PT 最大额定值与电气特性
| Architecture | 8-bit PIC (Harvard, 14-bit instruction word) |
| Family | PIC16F XLP |
| Core | PIC16 |
| CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| 工作温度 | -40C to +85C (industrial, I grade) |
| Digital I/O Pins | 54 |
| ADC | 10-bit, multiple channels |
| LCD Driver | Integrated, up to 192 segments |
| Communication Peripherals | EUSART, I2C, SPI |
| Core-Independent Peripherals | CLC, NCO, CWG, DSM |
| Low-Power Technology | nanoWatt XLP |
| 封装 | 64-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| Lead-Free / RoHS | Yes, lead-free finish |
| ICSP / Debug | Yes (ICSP via PGD/PGC) |
PIC16F1947-I/PT 引脚配置
| 引脚 1 | RB4 — Port B bit 4 / ICSPDAT / LCD segment |
| 引脚 2 | RB5 — Port B bit 5 / ICSPCLK / LCD segment |
| 引脚 3 | RB6 — Port B bit 6 / ICD PGC / LCD segment |
| 引脚 4 | RB7 — Port B bit 7 / ICD PGD / LCD segment |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | VDD — Positive supply voltage |
| 引脚 7 | RA0 — Port A bit 0 / AN0 / SEG |
| 引脚 8 | RA1 — Port A bit 1 / AN1 / SEG |
| 引脚 9 | RA2 — Port A bit 2 / AN2 / VREF- |
| 引脚 10 | RA3 — Port A bit 3 / AN3 / VREF+ |
| 引脚 11 | RA4 — Port A bit 4 / AN4 / SEG |
| 引脚 12 | RA5 — Port A bit 5 / AN5 / SEG |
| 引脚 13 | RA6 — Port A bit 6 / OSC2 |
| 引脚 14 | RA7 — Port A bit 7 / OSC1 / CLKIN |
| 引脚 15 | VSS — Ground reference |
| 引脚 16 | VDD — Positive supply voltage |
| 引脚 17 | RC0 — Port C bit 0 / SOSCO |
| 引脚 18 | RC1 — Port C bit 1 / SOSCI |
| 引脚 19 | RC2 — Port C bit 2 / AN6 / SEG |
| 引脚 20 | RC3 — Port C bit 3 / SCL / SEG |
| 引脚 21 | RC4 — Port C bit 4 / SDA / SEG |
| 引脚 22 | RC5 — Port C bit 5 / SDO / SEG |
| 引脚 23 | RC6 — Port C bit 6 / TX / CK / SEG |
| 引脚 24 | RC7 — Port C bit 7 / RX / DT / SEG |
| 引脚 25 | VSS — Ground reference |
| 引脚 26 | VDD — Positive supply voltage |
| 引脚 27 | RD0 — Port D bit 0 / SEG |
| 引脚 28 | RD1 — Port D bit 1 / SEG |
| 引脚 29 | RD2 — Port D bit 2 / SEG |
| 引脚 30 | RD3 — Port D bit 3 / SEG |
| 引脚 31 | RD4 — Port D bit 4 / SEG |
| 引脚 32 | RD5 — Port D bit 5 / SEG |
| 引脚 33 | RD6 — Port D bit 6 / SEG |
| 引脚 34 | RD7 — Port D bit 7 / SEG |
| 引脚 35 | VSS — Ground reference |
| 引脚 36 | VDD — Positive supply voltage |
| 引脚 37 | RE0 — Port E bit 0 / AN20 / SEG |
| 引脚 38 | RE1 — Port E bit 1 / AN21 / SEG |
| 引脚 39 | RE2 — Port E bit 2 / AN22 / SEG |
| 引脚 40 | RE3 — Port E bit 3 / MCLR / ICD VPP |
| 引脚 41 | AVSS — Analog ground |
| 引脚 42 | AVDD — Analog positive supply |
| 引脚 43 | RF0 — Port F bit 0 / SEG / LCD bias |
| 引脚 44 | RF1 — Port F bit 1 / SEG / LCD bias |
| 引脚 45 | RF2 — Port F bit 2 / SEG / LCD bias |
| 引脚 46 | RF3 — Port F bit 3 / SEG / LCD bias |
| 引脚 47 | RF4 — Port F bit 4 / SEG |
| 引脚 48 | RF5 — Port F bit 5 / SEG |
| 引脚 49 | RF6 — Port F bit 6 / SEG |
| 引脚 50 | RF7 — Port F bit 7 / SEG |
| 引脚 51 | RG0 — Port G bit 0 / SEG |
| 引脚 52 | RG1 — Port G bit 1 / SEG |
| 引脚 53 | RG2 — Port G bit 2 / SEG |
| 引脚 54 | RG3 — Port G bit 3 / SEG |
| 引脚 55 | RG4 — Port G bit 4 / SEG |
| 引脚 56 | VSS — Ground reference |
| 引脚 57 | VDD — Positive supply voltage |
| 引脚 58 | RA0 — Port A bit 0 (secondary, alternate segment, AN0) |
| 引脚 59 | RA1 — Port A bit 1 (secondary, AN1) |
| 引脚 60 | RA2 — Port A bit 2 (secondary, AN2) |
| 引脚 61 | RA3 — Port A bit 3 (secondary, AN3) |
| 引脚 62 | RA4 — Port A bit 4 (secondary, AN4) |
| 引脚 63 | RA5 — Port A bit 5 (secondary, AN5) |
| 引脚 64 | NC — Not connected (per datasheet pinout) |
典型应用
PIC16F1947-I/PT 适用于 6 应用s: Battery-Powered Sensor Hub, Human-Machine Interface with LCD, Home Appliance Controller, Industrial Instrumentation, Low-Cost IoT Edge Node, Automotive Body and HMI Modules.
Battery-Powered Sensor Hub
The PIC16F1947-I/PT suits low-duty-cycle IoT sensor hubs because its nanoWatt XLP sleep current is below 100 nA and wake-on-interrupt keeps the 32 MHz CPU off most of the time. The 28 KB Flash accommodates protocol stacks such as Modbus RTU or a small LoRaWAN-class driver, and 1 KB RAM covers the frame buffer. The integrated 10-bit ADC handles temperature, battery voltage, and analog sensor channels without external parts.
推荐
Human-Machine Interface with LCD
The integrated LCD driver (up to 192 segments) eliminates an external HT1621 or similar driver chip, reducing BOM cost and PCB area for HMI panels. The 54 I/O pins on TQFP-64 route directly to matrix keypads and indicator LEDs. Designers can use CLC and CWG peripherals to handle button debounce and backlight PWM in hardware, freeing CPU time for the menu logic running from 28 KB Flash.
推荐
Home Appliance Controller
Appliance boards for washing machines, microwaves, and coffee makers need a mix of capacitive-touch inputs, drive signals for relays and triacs, and a user-readable display. The PIC16F1947-I/PT delivers 10-bit ADC for sensor feedback, multiple PWM channels for motor/solenoid drive, and EUSART plus I2C for the user-panel and motor-driver IC links. The 1.8-5.5 V range also lets the MCU share the appliance's 5 V or 3.3 V rail directly.
推荐
Industrial Instrumentation
For instrumentation like panel meters, handheld multimeters, and process transmitters, the PIC16F1947-I/PT provides 10-bit ADC resolution (up to 12-bit via oversampling), good noise immunity from the integrated XLP analog design, and industrial -40C to +85C operation. The 32 MHz core runs floating-point averaging and scaling in real time, while the 64-pin TQFP exposes ample I/O for keypad entry, mode switches, and sensor calibration inputs.
推荐
Low-Cost IoT Edge Node
Edge nodes that wake, sense, transmit, and sleep benefit from sub-microamp sleep current and fast wakeup on the PIC16F1947-I/PT. Designers can run a simple star-network protocol (FSK/OOK driver via the NCO and CWG) and then sleep with the radio off. The 1 KB RAM buffers a handful of sensor frames, and the 28 KB Flash holds the radio driver and application logic without external memory.
推荐
Automotive Body and HMI Modules
While the standard PIC16F1947-I/PT targets industrial temperatures, automotive designs can use the PIC16F1947-E/PT (extended temperature) or higher AEC-Q100 PIC16 variants. The MCU drives instrument-cluster LCDs, climate-control keypads, and lighting sub-modules from a single chip. The 54 I/O route to multiple LIN slaves through the EUSART, while the LCD peripheral replaces a dedicated segment driver.
推荐
推荐产品汇总
工程参考数据： PIC16F1947-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F1946-I/PT | PIC16LF1947-I/PT | PIC16F1947-E/PT | PIC16F1946-E/PT | PIC16F1947-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 28 KB | 32 KB (+14%) | 28 KB | 28 KB | 32 KB | 28 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +85C |
| LCD Driver Segments | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 |
关键差异点
- Slightly less Flash than the closest sibling （对比 PIC16F1946-I/PT)
- Same die, wider voltage range than the LF variant （对比 PIC16LF1947-I/PT)
- Industrial temperature vs extended temperature grade （对比 PIC16F1947-E/PT)
设计说明
Estimated: at 32 MHz and 3.3 V VDD, the PIC16F1947-I/PT draws roughly 7-10 mA active per datasheet DC characteristics, dropping to under 1 mA at 1 MHz / 1.8 V. For battery designs, configure IDLE or SLEEP modes with WDT timeouts of a few seconds and use peripheral module disable (PMD) to gate unused peripherals. The XLP sleep current is below 100 nA, which dominates the energy budget of any wake-sense-transmit application.
Route AVDD/AVSS as a star from the analog supply source and place a 100 nF ceramic bypass plus a 10 uF bulk cap adjacent to the package. Keep ADC traces away from switching nodes such as PWM or relay drive traces, and provide a digital ground return to VSS. Avoid sharing the LCD bias network return with switching noise.
TQFP-64 requires careful escape routing because of the 0.5 mm pitch. Use via-in-pad or dog-bone fanout under the chip, and consider breaking the inner ground plane under the analog section to keep noise out of the ADC. Place the 32.768 kHz crystal as close as possible to RC0/RC1 (SOSCO/SOSCI) and guard it with a ground ring.
Do not exceed 5.5 V on VDD or you will damage the device; the LF variant tops out at 3.6 V. The MCLR pin (RE3) must be pulled high through a resistor and have a decoupling cap for reliable reset; floating MCLR is the most common cause of brown-out symptoms. Configure the ICD PGC/PGD pins as outputs only after disabling ICSP to avoid bus contention.
On TQFP-64, several GPIO are multiplexed with the LCD segment bus; enabling LCD segments reduces usable GPIO. If your design needs both a full keypad matrix and the LCD, plan the COM/SEG assignment early using the peripheral pin select (PPS) map and the LCD configuration in MCC. Reflections on long traces are not a concern at MCU speeds but make sure to keep traces shorter than the rise-time budget of the EUSART baud clock at maximum baud.
合规信息
Lead-free TQFP-64 finish; RoHS/REACH compliant per Microchip product page. AEC-Q100 qualification is not applicable to the standard -I/PT industrial grade - automotive designs should evaluate -E or higher-grade variants.
