PIC16F1947-I/PT - 8-bit 32MHz XLP MCU 28KB Flash TQFP-64
MPN: PIC16F1947-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 Overview
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.
Drop-in alternatives for PIC16F1947-I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F1947-I/PT (same form factor and footprint) — differing in LCD Driver, Operating Temperature, Package, ADC, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1946-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1947-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1947-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1946-E/PT
✅ Drop-In✓ In Stock
$2.7 / Unit
View Datasheet →PIC16F1947-I/MR
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC16F1947-I/PT Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature | -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 |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Yes, lead-free finish |
| ICSP / Debug | Yes (ICSP via PGD/PGC) |
PIC16F1947-I/PT Pin Configuration
| Pin 1 | RB4 — Port B bit 4 / ICSPDAT / LCD segment |
| Pin 2 | RB5 — Port B bit 5 / ICSPCLK / LCD segment |
| Pin 3 | RB6 — Port B bit 6 / ICD PGC / LCD segment |
| Pin 4 | RB7 — Port B bit 7 / ICD PGD / LCD segment |
| Pin 5 | VSS — Ground reference |
| Pin 6 | VDD — Positive supply voltage |
| Pin 7 | RA0 — Port A bit 0 / AN0 / SEG |
| Pin 8 | RA1 — Port A bit 1 / AN1 / SEG |
| Pin 9 | RA2 — Port A bit 2 / AN2 / VREF- |
| Pin 10 | RA3 — Port A bit 3 / AN3 / VREF+ |
| Pin 11 | RA4 — Port A bit 4 / AN4 / SEG |
| Pin 12 | RA5 — Port A bit 5 / AN5 / SEG |
| Pin 13 | RA6 — Port A bit 6 / OSC2 |
| Pin 14 | RA7 — Port A bit 7 / OSC1 / CLKIN |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply voltage |
| Pin 17 | RC0 — Port C bit 0 / SOSCO |
| Pin 18 | RC1 — Port C bit 1 / SOSCI |
| Pin 19 | RC2 — Port C bit 2 / AN6 / SEG |
| Pin 20 | RC3 — Port C bit 3 / SCL / SEG |
| Pin 21 | RC4 — Port C bit 4 / SDA / SEG |
| Pin 22 | RC5 — Port C bit 5 / SDO / SEG |
| Pin 23 | RC6 — Port C bit 6 / TX / CK / SEG |
| Pin 24 | RC7 — Port C bit 7 / RX / DT / SEG |
| Pin 25 | VSS — Ground reference |
| Pin 26 | VDD — Positive supply voltage |
| Pin 27 | RD0 — Port D bit 0 / SEG |
| Pin 28 | RD1 — Port D bit 1 / SEG |
| Pin 29 | RD2 — Port D bit 2 / SEG |
| Pin 30 | RD3 — Port D bit 3 / SEG |
| Pin 31 | RD4 — Port D bit 4 / SEG |
| Pin 32 | RD5 — Port D bit 5 / SEG |
| Pin 33 | RD6 — Port D bit 6 / SEG |
| Pin 34 | RD7 — Port D bit 7 / SEG |
| Pin 35 | VSS — Ground reference |
| Pin 36 | VDD — Positive supply voltage |
| Pin 37 | RE0 — Port E bit 0 / AN20 / SEG |
| Pin 38 | RE1 — Port E bit 1 / AN21 / SEG |
| Pin 39 | RE2 — Port E bit 2 / AN22 / SEG |
| Pin 40 | RE3 — Port E bit 3 / MCLR / ICD VPP |
| Pin 41 | AVSS — Analog ground |
| Pin 42 | AVDD — Analog positive supply |
| Pin 43 | RF0 — Port F bit 0 / SEG / LCD bias |
| Pin 44 | RF1 — Port F bit 1 / SEG / LCD bias |
| Pin 45 | RF2 — Port F bit 2 / SEG / LCD bias |
| Pin 46 | RF3 — Port F bit 3 / SEG / LCD bias |
| Pin 47 | RF4 — Port F bit 4 / SEG |
| Pin 48 | RF5 — Port F bit 5 / SEG |
| Pin 49 | RF6 — Port F bit 6 / SEG |
| Pin 50 | RF7 — Port F bit 7 / SEG |
| Pin 51 | RG0 — Port G bit 0 / SEG |
| Pin 52 | RG1 — Port G bit 1 / SEG |
| Pin 53 | RG2 — Port G bit 2 / SEG |
| Pin 54 | RG3 — Port G bit 3 / SEG |
| Pin 55 | RG4 — Port G bit 4 / SEG |
| Pin 56 | VSS — Ground reference |
| Pin 57 | VDD — Positive supply voltage |
| Pin 58 | RA0 — Port A bit 0 (secondary, alternate segment, AN0) |
| Pin 59 | RA1 — Port A bit 1 (secondary, AN1) |
| Pin 60 | RA2 — Port A bit 2 (secondary, AN2) |
| Pin 61 | RA3 — Port A bit 3 (secondary, AN3) |
| Pin 62 | RA4 — Port A bit 4 (secondary, AN4) |
| Pin 63 | RA5 — Port A bit 5 (secondary, AN5) |
| Pin 64 | NC — Not connected (per datasheet pinout) |
Typical Applications
PIC16F1947-I/PT is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1947-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Slightly less Flash than the closest sibling (vs PIC16F1946-I/PT)
- Same die, wider voltage range than the LF variant (vs PIC16LF1947-I/PT)
- Industrial temperature vs extended temperature grade (vs PIC16F1947-E/PT)
Design Notes
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.
Compliance Information
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.
