PIC16LF1508T-I/GZ - 8-bit MCU, 7KB Flash, 20MHz, UQFN-20 | Microchip
MPN: PIC16LF1508T-I/GZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.68 | $168.00 |
| 500 | $1.47 | $735.00 |
| 1,000 | $1.31 | $1,310.00 |
PIC16LF1508T-I/GZ Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals on one silicon die. PIC microcontrollers use a Harvard RISC architecture with a small, deterministic instruction set, making them widely used in embedded control where predictable timing, low cost, and ease of programming matter most. The PIC16F family sits in the mid-range 8-bit tier above the baseline PIC10/12/16F and below 16-bit dsPIC/PIC24 devices, balancing peripherals, code density, and power efficiency.
Key features of the PIC16LF1508T-I/GZ include 7 KB self-programmable Flash, 256 B SRAM, 17 digital I/O, 12-channel 10-bit ADC, one 5-bit DAC, multiple timers, enhanced PWM, and an on-chip temperature indicator. The wide 1.8 V to 3.6 V supply range plus XLP sleep currents below 1 uA enable years of operation from a single coin cell. Core-independent peripherals (CIPs) such as CWG, NCO, and CLC offload timing-critical tasks from the CPU.
The device uses a 14-bit instruction word and a two-stack deep hardware stack, with two 16-bit File Select Registers for Direct, Indirect, and Relative addressing. The 20 MHz internal oscillator combined with a 4x PLL option provides flexible clocking, while the integrated 10-bit ADC and 5-bit DAC let designers drop external signal-chain components on simple sensor or LED-driving boards.
Typical applications include battery-powered IoT sensor nodes, low-power wireless remote controls, LED lighting controllers, consumer electronics HMI, small motor and fan control loops, and industrial sensor interfaces. The combination of XLP sleep current, internal oscillator, and small UQFN package makes it a strong fit for compact, energy-harvesting designs.
When designing with this part, prefer the internal HF oscillator to minimize BOM count, route the exposed pad (EP) to a continuous ground plane for thermal and electrical performance, and use MPLAB X IDE with XC8 compiler and PICkit or MPLAB Snap debugger for development. Verify ADC accuracy by averaging multiple conversions in software.
This page synthesizes XAIPART distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, with cross-references to the Microchip PIC16(L)F1508/9 datasheet (DS40001609).
Drop-in alternatives for PIC16LF1508T-I/GZ β 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 PIC16LF1508T-I/GZ (same form factor and footprint) β differing in ADC, Instruction Set, Package, Packaging, Series.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16LF1508T-E/GZ
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1509T-I/GZ
β Drop-Inβ In Stock
$0.8 / Unit
View Datasheet βPIC16LF1508T-I/G
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1508T-I/GZ
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1508-I/GZ
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1508T-I/GZ Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC16F XLP 16F |
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum CPU Speed | 20 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data Memory (SRAM) | 256 B |
| Number of I/O Pins | 17 |
| ADC | 12-channel, 10-bit |
| DAC | 1 x 5-bit |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| Package | 20-pin UQFN (4x4 mm) with Exposed Pad |
| Packaging | Tape & Reel |
| Instruction Set | 14-bit, 35 instructions |
| Low-Power Technology | XLP (eXtreme Low Power) |
| RoHS Status | Compliant |
PIC16LF1508T-I/GZ Pin Configuration
| Pin 1 | RA5 β Digital I/O / ADC input |
| Pin 2 | RA4 β Digital I/O / ADC input |
| Pin 3 | RA3 β Digital I/O / MCLR |
| Pin 4 | RA2 β Digital I/O / analog input |
| Pin 5 | RA1 β Digital I/O / ICSPCLK |
| Pin 6 | RA0 β Digital I/O / ICSPDAT |
| Pin 7 | VSS β Ground reference |
| Pin 8 | VDD β Positive supply (1.8-3.6 V) |
| Pin 9 | OSC1/RA7 β Crystal oscillator input / GPIO |
| Pin 10 | OSC2/RA6 β Crystal oscillator output / GPIO |
| Pin 11 | RC0 β Digital I/O / analog input |
| Pin 12 | RC1 β Digital I/O / analog input |
| Pin 13 | RC2 β Digital I/O / analog input |
| Pin 14 | RC3 β Digital I/O / analog input / SDA |
| Pin 15 | RC4 β Digital I/O / analog input / SCL |
| Pin 16 | RC5 β Digital I/O / analog input |
| Pin 17 | RC6 β Digital I/O / TX |
| Pin 18 | RC7 β Digital I/O / RX |
| Pin 19 | RB7 β Digital I/O |
| Pin 20 | RB6 β Digital I/O / ICSPCLK |
Typical Applications
PIC16LF1508T-I/GZ is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Low-Power Wireless Remote Controls, LED Lighting Controllers, Consumer Electronics HMI, Small Motor and Fan Control, Industrial Sensor Interfaces.
Battery-Powered IoT Sensor Nodes
The PIC16LF1508T-I/GZ fits battery-powered IoT sensor nodes because of its 1.8 V to 3.6 V supply range and Microchip XLP technology delivering sub-1 uA sleep current. The 12-channel 10-bit ADC supports multiple temperature, light, or voltage sensors on a single chip, while the 7 KB Flash and 256 B SRAM are sufficient for typical duty-cycled sensor-firmware stacks. Designers place it between the battery and a low-power radio module (e.g., Sub-GHz or BLE) and let the MCU wake, sample, transmit, and sleep - often achieving multi-year coin-cell lifetimes when properly duty-cycled.
Recommended
Low-Power Wireless Remote Controls
The PIC16LF1508T-I/GZ is well suited for handheld remote controls where every microamp matters. Its XLP sleep current below 1 uA, 17 available I/O for button scanning or capacitive touch via the CWG peripheral, and a 20 MHz core for quick command encoding let it stay mostly asleep until a button is pressed. Typical designs pair it with a 315/433/868 MHz SAW-stabilized OOK/FSK transmitter. The wide 1.8-3.6 V range lets the design run directly from two AAA cells, and the small UQFN-20 (4x4) footprint keeps the PCB tiny.
Recommended
LED Lighting Controllers
The PIC16LF1508T-I/GZ drives simple LED lighting and RGB color-mixing designs via its enhanced PWM, 5-bit DAC for smooth dimming, and 17 I/O for LED array multiplexing. The 20 MHz core can generate multi-channel PWM at audio-beyond frequencies to avoid flicker, while the 10-bit ADC reads ambient light sensors for closed-loop brightness control. Designers commonly use the CWG (Complementary Waveform Generator) for dead-band control of half-bridge LED drivers. The 1.8-3.6 V supply is convenient for 2-cell alkaline or single-cell Li-ion powered fixtures.
Recommended
Consumer Electronics HMI
The PIC16LF1508T-I/GZ handles simple human-machine interface (HMI) tasks such as capacitive touch buttons, LED indicators, buzzer control, and segment LCD driving in consumer appliances. The 17 I/O allow direct scanning of up to a 4x4 keypad matrix plus LED indicators, while the 10-bit ADC reads potentiometers or analog sensors. Internal HF oscillator plus 4x PLL removes the external crystal BOM, and the small UQFN-20 keeps the controller hidden behind the front panel. The 7 KB Flash comfortably fits state-machine HMI logic plus factory calibration data in EEPROM emulation.
Recommended
Small Motor and Fan Control
The PIC16LF1508T-I/GZ implements closed-loop BLDC, brushed DC, or fan-speed control using its enhanced PWM, timers, and 10-bit ADC. The 20 MHz core is enough for sensorless back-EMF commutation at low to medium RPM, while 256 B SRAM holds the speed PI-controller state. The 5-bit DAC can output an analog control voltage for external gate drivers. Designers often add the CWG peripheral for hardware dead-band insertion. The 1.8-3.6 V supply plus optional internal 32 kHz LF oscillator makes battery-driven cooling fans and toys easy to implement.
Recommended
Industrial Sensor Interfaces
The PIC16LF1508T-I/GZ serves as a low-cost analog front-end in industrial sensor interface modules, where its 12-channel 10-bit ADC, 5-bit DAC, and 1.8-3.6 V operation make 4-20 mA loop or 0-10 V sensor signal conditioning straightforward. The 7 KB Flash fits Modbus RTU or proprietary serial protocol stacks, while 256 B SRAM handles packet buffers. The -40 C to +85 C industrial temperature rating suits cabinet-mounted industrial electronics, and the small UQFN-20 enables SMD assembly. Typical use cases include thermocouple conditioning boards, strain-gauge bridges, and 0-10 V analog output modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1508T-I/GZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1508T-E/GZ | PIC16LF1509T-I/GZ | PIC16LF1508T-I/G | PIC16F1508T-I/GZ | PIC16LF1508-I/GZ |
|---|---|---|---|---|---|---|
| Package | 20-pin UQFN (4x4 mm) GZ | 20-pin UQFN (4x4 mm) GZ - same | 20-pin UQFN (4x4 mm) GZ - same | 20-pin UQFN (4x4 mm) GZ - same | 20-pin UQFN (4x4 mm) GZ - same | 20-pin UQFN (4x4 mm) GZ - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB (4K x 14) | 7 KB (4K x 14) - same | 8 KB (4K x 14) - +14% | 7 KB (4K x 14) - same | 7 KB (4K x 14) - same | 7 KB (4K x 14) - same |
| SRAM | 256 B | 256 B - same | 512 B - +100% | 256 B - same | 256 B - same | 256 B - same |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 1.8 V to 3.6 V - same | 2.3 V to 5.5 V - +12% upper | 1.8 V to 3.6 V - same |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C - +40% upper | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same |
| Max CPU Speed | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| I/O Pins | 17 | 17 - same | 17 - same | 17 - same | 17 - same | 17 - same |
| ADC Resolution | 10-bit, 12 channels | 10-bit, 12 channels - same | 10-bit, 12 channels - same | 10-bit, 12 channels - same | 10-bit, 12 channels - same | 10-bit, 12 channels - same |
| DAC | 1 x 5-bit | 1 x 5-bit - same | 1 x 5-bit - same | 1 x 5-bit - same | 1 x 5-bit - same | 1 x 5-bit - same |
Key Differentiators
- Lowest-cost 8-bit MCU in UQFN-20 with 7 KB Flash and XLP (vs PIC16LF1455-I/SL (14-pin SOIC cousin))
- Higher-memory upgrade path in same UQFN-20 footprint (vs PIC16LF1509T-I/GZ)
- Low-voltage (1.8-3.6 V) XLP variant with sub-1 uA sleep (vs PIC16F1508T-I/GZ (non-LF variant))
Design Notes
The PIC16LF1508T-I/GZ is in a 20-pin UQFN (4x4 mm) package with an exposed thermal pad (EP). The EP MUST be soldered to a continuous, low-impedance ground plane for both thermal dissipation and electrical reference. Place decoupling capacitors (100 nF ceramic plus 10 uF bulk) within 2 mm of the VDD pin and route VDD/VSS traces in a star topology. Keep the ICSP signals (ICSPDAT/ICSPCLK) accessible via test pads or a header for in-circuit programming and debugging with PICkit or MPLAB Snap.
Take advantage of Microchip's eXtreme Low Power (XLP) modes to extend battery life. The PIC16LF1508T-I/GZ offers sleep currents below 1 uA with the LFINTOSC and Timer1 wake source. Use the Peripheral Pin Select (PPS) feature to remap digital functions and minimize I/O toggling while sleeping. Decouple the VDD pin with both a 100 nF and 4.7-10 uF low-ESR ceramic capacitor to handle inrush when peripherals are enabled. Add a 100 ohm + 100 nF RC network on MCLR if the line is exposed to ESD events.
Avoid these common pitfalls: (1) leaving the MCLR pin floating - tie it to VDD through a 10 kohm resistor or drive it via the ICSP programmer; (2) using the internal HF oscillator without considering the 4x PLL - verify the actual FOSC against the ADC acquisition time; (3) forgetting that the PIC16LF1508 has only 256 B SRAM - large buffers or arrays will quickly exhaust memory; (4) routing analog signals (ADC inputs, DAC output) across digital traces - keep analog traces short and guarded by ground; (5) selecting the wrong PICkit target supply voltage (the LF part runs 1.8-3.6 V, not 5 V).
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade PIC16F equivalent if required. Lead-free reflow profile per JEDEC J-STD-020.
