PIC16LF1934T-I/ML - 8-bit 32MHz 7KB Flash XLP MCU | Microchip
MPN: PIC16LF1934T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.65 | $265.00 |
| 500 | $2.31 | $1,155.00 |
| 1,000 | $2.04 | $2,040.00 |
PIC16LF1934T-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), working RAM, and programmable peripherals into one package. The PIC16LF1934 sits in the broader product hierarchy of microcontroller -> 8-bit MCU -> PIC16 family -> nanoWatt XLP extreme-low-power MCUs from Microchip. The "LF" prefix designates the wide-voltage variant supporting 1.8 V–3.6 V operation, while "XLP" indicates nanoWatt technology for sub-microamp sleep currents.
Key differentiating specifications include a 32 MHz internal oscillator (8 MIPS throughput), an integrated Liquid Crystal Display (LCD) driver module with charge pump, a 12-channel 10-bit Analog-to-Digital Converter (ADC), and support for up to 36 digital I/O pins. The device offers multiple communication interfaces including I2C, SPI, and USART (EUSART), making it suitable for mixed-signal embedded designs.
The PIC16LF1934T-I/ML is built on Microchip's enhanced mid-range core using a Harvard RISC architecture with a 14-bit instruction word, providing deterministic execution and simplified C-language compilation via the MPLAB X IDE and XC8 compiler toolchain. The wide 1.8 V–3.6 V VDD range allows direct battery operation in 2-cell and 3-cell systems.
Typical applications include battery-powered consumer electronics, home appliances with LCD user interfaces, portable medical monitoring devices, low-cost industrial sensor nodes, and remote controls. The integrated LCD driver eliminates the need for an external display controller in many human-machine interface (HMI) designs.
When designing with this MCU, ensure that the exposed thermal pad (EP) is soldered to the PCB ground plane to meet the package's thermal and electrical performance. Decoupling capacitors (100 nF ceramic in parallel with a bulk 1 µF–10 µF) must be placed within 5 mm of VDD pins to ensure ADC and oscillator accuracy.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone Microchip datasheet, providing engineering context optimized for AI search and procurement workflows.
Drop-in alternatives for PIC16LF1934T-I/ML — 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 PIC16LF1934T-I/ML (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), Operating Temperature, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1934-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1933T-I/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC16LF1933T-I/MV
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC16LF1933-I/ML
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1829-I/ML
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC16LF1934T-I/ML Maximum Ratings & Electrical Characteristics
| Product Family | PIC® XLP™ 16F |
| Core Architecture | 8-bit PIC16 Enhanced Mid-Range (Harvard RISC) |
| Instruction Set | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K × 14) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | Up to 36 |
| ADC | 10-bit, up to 14 channels |
| LCD Driver | Integrated, with charge pump |
| Communication Interfaces | 1× I2C, 1× SPI, 1× EUSART |
| Timers | 4× 8-bit, 1× 16-bit |
| Operating Temperature Range | -40 °C to +85 °C (Industrial) |
| Package | 44-pin QFN (8×8 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1934T-I/ML Pin Configuration
| Pin 1 | RE3/MCLR — Digital input / Master Clear (reset) input |
| Pin 2 | RA0 — PORTA bit 0 / analog input |
| Pin 3 | RA1 — PORTA bit 1 / analog input |
| Pin 4 | RA2 — PORTA bit 2 / analog input |
| Pin 5 | RA3 — PORTA bit 3 / analog input |
| Pin 6 | RA4 — PORTA bit 4 / analog input |
| Pin 7 | RA5 — PORTA bit 5 / analog input |
| Pin 8 | RA6 — PORTA bit 6 / analog input |
| Pin 9 | RA7 — PORTA bit 7 / analog input |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | RB0 — PORTB bit 0 / analog input |
| Pin 13 | RB1 — PORTB bit 1 / analog input |
| Pin 14 | RB2 — PORTB bit 2 / analog input |
| Pin 15 | RB3 — PORTB bit 3 / analog input |
| Pin 16 | RB4 — PORTB bit 4 / analog input |
| Pin 17 | RB5 — PORTB bit 5 / analog input |
| Pin 18 | RB6 — PORTB bit 6 / ICSPCLK |
| Pin 19 | RB7 — PORTB bit 7 / ICSPDAT |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply voltage |
| Pin 22 | RC0 — PORTC bit 0 / analog input |
| Pin 23 | RC1 — PORTC bit 1 / analog input |
| Pin 24 | RC2 — PORTC bit 2 / analog input |
| Pin 25 | RC3 — PORTC bit 3 / analog input / SCL |
| Pin 26 | RC4 — PORTC bit 4 / analog input / SDA |
| Pin 27 | RC5 — PORTC bit 5 / analog input |
| Pin 28 | RC6 — PORTC bit 6 / TX |
| Pin 29 | RC7 — PORTC bit 7 / RX |
| Pin 30 | RD0 — PORTD bit 0 |
| Pin 31 | RD1 — PORTD bit 1 |
| Pin 32 | RD2 — PORTD bit 2 |
| Pin 33 | RD3 — PORTD bit 3 |
| Pin 34 | RD4 — PORTD bit 4 |
| Pin 35 | RD5 — PORTD bit 5 |
| Pin 36 | RD6 — PORTD bit 6 |
| Pin 37 | RD7 — PORTD bit 7 |
| Pin 38 | VSS — Ground reference |
| Pin 39 | VDD — Positive supply voltage |
| Pin 40 | RE0 — PORTE bit 0 / analog input |
| Pin 41 | RE1 — PORTE bit 1 / analog input |
| Pin 42 | RE2 — PORTE bit 2 / analog input |
| Pin 43 | VSS — Ground reference |
| Pin 44 | VDD — Positive supply voltage |
Typical Applications
PIC16LF1934T-I/ML is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Consumer Appliance LCD HMI, Portable Medical Monitoring Devices, Industrial Sensor Transmitters, Remote Control and Home Automation, Low-Cost Educational and Hobby Electronics.
Battery-Powered IoT Sensor Nodes
The PIC16LF1934T-I/ML suits IoT sensor endpoints that demand multi-year battery life. Its XLP technology delivers sub-microamp sleep current and a wide 1.8 V–3.6 V VDD range, allowing direct operation from a single Li-ion or two alkaline cells without a boost converter. The integrated 10-bit ADC with up to 14 channels handles temperature, humidity, and analog sensor inputs simultaneously, while the 256-byte EEPROM stores calibration constants persistently. At 32 MHz the core delivers 8 MIPS, sufficient for sensor-fusion preprocessing and protocol framing. The compact 44-pin QFN (8×8 mm) footprint enables placement in miniature sensor packages.
Recommended
Consumer Appliance LCD HMI
The PIC16LF1934T-I/ML is ideal for white-goods human-machine interfaces because it integrates a segmented LCD driver with on-chip charge pump, eliminating external bias-voltage circuitry for glass displays. Up to 96 LCD segments can be driven directly, supporting multi-digit numeric or simple icon-based UIs on washing machines, microwaves, and thermostats. The 32 MHz core runs UI state machines smoothly, and 256 bytes of RAM handles button-debounce buffers and display refresh tables. The 1.8 V–3.6 V range matches single-cell battery or 3.3 V regulated supplies common in modern appliance mainboards.
Recommended
Portable Medical Monitoring Devices
The PIC16LF1934T-I/ML fits handheld medical instruments such as pulse oximeters, glucose meters, and digital thermometers. Its low-power XLP core extends battery life across weeks of standby use, while the integrated 10-bit ADC samples sensor signals (photodiode, thermistor, electrochemical strip) at the required medical accuracy level. The on-chip EUSART and I2C peripherals connect to Bluetooth or NFC modules for wireless data offload. The 256-byte EEPROM preserves patient history or device calibration across power cycles, and the 44-pin QFN package supports miniaturized wearable form factors.
Recommended
Industrial Sensor Transmitters
Industrial 4–20 mA loop-powered transmitters and small PLC I/O modules benefit from the PIC16LF1934T-I/ML's industrial temperature rating (-40 °C to +85 °C) and 1.8 V–3.6 V operation from regulated loop supplies. The 10-bit ADC digitizes process variables (pressure, flow, temperature) and the on-chip EUSART outputs HART or RS-485 signals. With 7 KB Flash and 256 bytes RAM, the MCU hosts linearization lookup tables and PID loop control code. The QFN package's exposed pad provides thermal dissipation for hot industrial enclosures.
Recommended
Remote Control and Home Automation
The PIC16LF1934T-I/ML powers RF remote controls, smart-home keypads, and Z-Wave/Zigbee host MCUs where its nanoWatt XLP sleep modes preserve coin-cell battery life over years of standby. The integrated LCD driver enables status displays on premium remote controllers, and the EUSART links directly to 2.4 GHz transceiver modules. With 36 GPIO pins the MCU drives multi-row keypad scanning, IR LEDs, and buzzer outputs. The wide voltage range supports direct 2× AA or CR2032 operation without boost conversion.
Recommended
Low-Cost Educational and Hobby Electronics
The PIC16LF1934T-I/ML suits educational microcontroller trainers, Arduino-style hobby boards, and STEM classroom kits because of its broad peripheral set and free MPLAB X + XC8 toolchain. Students learn timer-based PWM, ADC sampling, I2C/SPI communication, and segmented LCD driving on a single chip. The 7 KB Flash accommodates full lesson firmware sets, and the 44-pin QFN package exposes every peripheral on breakout-friendly PCBs. The PIC16 architecture's deterministic instruction set is ideal for teaching register-level embedded programming fundamentals.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1934T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1934-I/ML | PIC16LF1933T-I/ML | PIC16LF1933T-I/MV | PIC16LF1933-I/ML | PIC16LF1829-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) with EP | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (UQFN) - same footprint | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 7 KB (4K x 14) | 7 KB | 4 KB | 4 KB | 4 KB | 8 KB |
| Data RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 1024 bytes |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Frequency | 32 MHz (8 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Integrated LCD Driver | Yes (with charge pump) | Yes | Yes | Yes | Yes | No |
| ADC Channels | Up to 14 channels, 10-bit | 14 channels | 14 channels | 14 channels | 14 channels | 12 channels |
Key Differentiators
- Tape-and-reel format with same die as tray variant (vs PIC16LF1934-I/ML)
- 7 KB Flash vs 4 KB Flash drop-in upgrade (vs PIC16LF1933T-I/ML)
- Integrated segmented LCD driver with charge pump (vs PIC16LF1829-I/ML)
Design Notes
The 44-pin QFN (ML) package has an exposed thermal pad (EP) on the underside that MUST be soldered to a copper pad on the PCB, normally tied to VSS. Recommended pad dimensions: a 5.5 mm × 5.5 mm center pad with thermal vias (0.3 mm diameter, 1.2 mm pitch grid) connecting to the inner VSS plane. Skipping the EP soldering reduces thermal performance and may compromise ADC accuracy due to ground bounce.
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin and a bulk 1 µF–10 µF tantalum or ceramic capacitor near the MCU power input. The PIC16LF1934T-I/ML has three VDD pins (11, 21, 39) and four VSS pins (10, 20, 38, 43) - all must be properly decoupled. For battery applications, the XLP sleep current is rated below 1 µA when configured per datasheet section 10.
When migrating between the PIC16LF1934 (7 KB Flash) and PIC16LF1933 (4 KB Flash), verify that the linker script matches the smaller device's memory map; otherwise the code may overflow into undefined memory at runtime. Always configure unused pins as outputs (not inputs) to avoid floating-input quiescent current draw. The MCLR/RE3 pin (pin 1) must be pulled high through a 10 kΩ resistor for normal operation - leaving it floating prevents startup.
Compliance Information
RoHS and REACH compliance confirmed via Microchip product page and distributor listings (2026-09-25). Part is not AEC-Q100 qualified - this is an industrial-grade (I) part rated -40 °C to +85 °C, not automotive grade.
