PIC16F1509-I/GZ - 14KB Flash 8-bit MCU, 20-UQFN | Microchip
MPN: PIC16F1509-I/GZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.92 | $1.92 |
| 10 | $1.72 | $17.20 |
| 100 | $1.38 | $138.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $0.95 | $950.00 |
PIC16F1509-I/GZ Overview
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor designed for embedded control applications. The PIC16F1509 sits within the Microchip PIC16 mid-range family, which provides a balance of code density, peripheral integration, and low power consumption. PIC16F150x devices target cost-sensitive applications requiring mixed analog and digital I/O, such as user-interface control, sensor conditioning, and low-power IoT end nodes.
Key features include 14KB self-programmable Flash, 512B SRAM, 10-bit ADC with computation, support for up to four 10-bit PWM outputs, configurable logic cells (CLC), complementary waveform generators (CWG), and zero-cross detect (ZCD) peripherals. The device supports nanoWatt XLP sleep currents as low as 20 nA in sleep mode with RTCC enabled, allowing battery-powered designs to extend operating life. Internal oscillator options up to 16 MHz reduce BOM cost by removing the external crystal.
The PIC16F1509 uses an enhanced mid-range core with a 14-bit instruction word. The 49-instruction set provides deterministic execution, with most instructions completing in one instruction cycle. Integrated peripherals such as CWG, CLC, and NCO enable designers to generate waveforms and logic functions without external components, which is a notable improvement over older PIC16F baselines.
Typical applications include LED lighting controllers with dimming and color mixing, small appliance controls, sensor signal conditioning, battery chargers, and consumer user-interface boards. The wide operating voltage range and XLP nanoWatt technology make it a common choice for power-aware designs.
When designing with this part, ensure that the UQFN exposed pad is soldered to the PCB ground plane for thermal dissipation and that decoupling capacitors are placed as close to the VDD pins as possible. Use MPLAB X IDE and XC8 compiler for code development.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path from specification to qualified sourcing.
Drop-in alternatives for PIC16F1509-I/GZ — 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 PIC16F1509-I/GZ (same form factor and footprint) — differing in Package, Program Memory (Flash), Operating Temperature Range, ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1509-I/GZ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1509-E/GZ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1509T-I/GZ
✅ Drop-In✓ In Stock
$0.97 / Unit
View Datasheet →PIC16F1509-I/GZVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1579-I/GZ
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16F1509-I/GZ Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range |
| Family | PIC16F150x (XLP) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 512 bytes |
| Maximum Clock Frequency | 20 MHz |
| Operating Voltage | 2.3 V to 5.5 V |
| I/O Pins | 18 |
| PWM Outputs | Up to four 10-bit PWM |
| Package | 20-UQFN (4x4 mm) |
| Temperature Grade | Industrial (-40°C to +85°C) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Low-Power Feature | nanoWatt XLP (sleep current ~20 nA typ) |
PIC16F1509-I/GZ Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O / analog input |
| Pin 2 | RA3 — Bidirectional I/O / analog input / MCLR |
| Pin 3 | RA4 — Bidirectional I/O / analog input |
| Pin 4 | RA5 — Bidirectional I/O / analog input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0 — Bidirectional I/O / analog input |
| Pin 7 | RB1 — Bidirectional I/O / analog input |
| Pin 8 | RB2 — Bidirectional I/O / analog input |
| Pin 9 | RB3 — Bidirectional I/O / analog input |
| Pin 10 | RB4 — Bidirectional I/O / analog input |
| Pin 11 | RB5 — Bidirectional I/O / analog input |
| Pin 12 | RB6 — Bidirectional I/O / ICSPCLK |
| Pin 13 | RB7 — Bidirectional I/O / ICSPDAT |
| Pin 14 | VDD — Positive supply voltage |
| Pin 15 | RC0 — Bidirectional I/O / analog input |
| Pin 16 | RC1 — Bidirectional I/O / analog input |
| Pin 17 | RC2 — Bidirectional I/O / analog input |
| Pin 18 | RA7 — Bidirectional I/O / analog input |
| Pin 19 | RA0 — Bidirectional I/O / analog input |
| Pin 20 | RA1 — Bidirectional I/O / analog input |
Typical Applications
PIC16F1509-I/GZ is suitable for 6 applications: LED Lighting Controller, Battery-Powered Sensor Node, Small Appliance Control Board, User Interface / HMI Front Panel, Battery Charger / Power Bank Controller, Consumer Toy and Hobby Electronics.
LED Lighting Controller
The PIC16F1509-I/GZ is well suited to drive multi-channel LED lighting with up to four 10-bit PWM outputs and a complementary waveform generator (CWG) for half-bridge LED driver stages. Operating from 2.3V to 5.5V, it accepts power directly from USB or 3.3V regulators. The CWG peripheral can drive MOSFETs without CPU intervention, freeing the core for dimming curves and color-mixing math. The XLP 20 nA sleep mode enables battery-powered accent lighting. Place a 10µF bulk and 0.1µF ceramic on VDD, and route the exposed pad to ground for thermal relief.
Recommended
Battery-Powered Sensor Node
The PIC16F1509-I/GZ's nanoWatt XLP technology delivers a typical sleep current of 20 nA with RTCC active, making it ideal for battery-powered sensor nodes on coin cells or 2xAA batteries. The internal 16 MHz HFINTOSC eliminates the external crystal cost and BOM space, while the 14KB Flash accommodates firmware for sensor sampling, threshold logic, and BLE/sensor wake-up sequences. The 10-bit ADC directly digitizes thermistor or photodiode signals. Use the LF variant (PIC16LF1509-I/GZ) for sub-3V operation; otherwise the standard part runs from 2.3V to 5.5V.
Recommended
Small Appliance Control Board
For small appliances such as coffee makers, blenders, or fans, the PIC16F1509-I/GZ delivers 18 I/O pins for keypad scanning, indicator LEDs, and triac or relay drive. The CWG peripheral handles zero-cross detection (ZCD) and triac timing without CPU load, improving line-voltage safety. Industrial -40°C to +85°C operating range covers under-cabinet environments. The 14KB Flash supports state-machine logic for menu-driven UIs. Use optocouplers between the MCU and the AC line drivers for isolation.
Recommended
User Interface / HMI Front Panel
The PIC16F1509-I/GZ can drive small character LCDs or LED segment displays while scanning capacitive touch buttons via the ADC and CLC peripherals. With 14KB Flash, designers can implement multi-language menus, debounced key inputs, and backlight control. The 2.3V to 5.5V range simplifies 3.3V-5V panel designs. The CLC peripheral implements custom logic such as capacitive sensing gating without external gates, reducing PCB area. Add ESD protection diodes on the front-panel connector traces.
Recommended
Battery Charger / Power Bank Controller
The PIC16F1509-I/GZ can implement CC/CV charge profiles for single-cell Li-Ion or Li-Poly packs using its 10-bit ADC for voltage and current sensing. The PWM outputs drive MOSFETs or DC-DC converters; the CWG handles synchronous rectification timing. Operating from 2.3V to 5.5V, the MCU can be powered directly from the pack voltage. Industrial temperature grade ensures reliable operation across charger thermal conditions. Add a fuel gauge companion (e.g., LC709203F) for accurate SOC reporting.
Recommended
Consumer Toy and Hobby Electronics
The PIC16F1509-I/GZ provides the right blend of capability and low cost for hobby and toy products: 14KB Flash for animation patterns, 18 I/O for servo/motor control, and XLP sleep for long battery life. The 20-UQFN 4x4 mm package fits compact enclosures. Internal oscillator eliminates external crystal cost. Pair with a low-cost NCO for sound generation or with a small BLDC driver for robotics. The CLC peripheral implements smart I/O logic without software polling.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1509-I/GZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1509-I/GZ | PIC16F1509-E/GZ | PIC16F1509T-I/GZ | PIC16F1579-I/GZ |
|---|---|---|---|---|---|
| Package | 20-UQFN (4x4 mm) | 20-UQFN (4x4 mm) - same | 20-UQFN (4x4 mm) - same | 20-UQFN (4x4 mm) - same | 20-UQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 14 KB | 14 KB | 28 KB |
| RAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 1024 bytes |
| I/O Pins | 18 | 18 | 18 | 18 | 18 |
| Operating Voltage | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| PWM Channels | Up to four 10-bit | Up to four 10-bit | Up to four 10-bit | Up to four 10-bit | Four 16-bit hardware PWMs |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
Key Differentiators
- Same footprint as the low-voltage LF variant (vs PIC16LF1509-I/GZ)
- Extended-temperature sibling available (vs PIC16F1509-E/GZ)
- More memory in same footprint (vs PIC16F1579-I/GZ)
Design Notes
Estimated: the 20-UQFN (4x4 mm) package dissipates up to approximately 800 mW at maximum operating temperature. With theta_JA around 39°C/W on a standard JEDEC 4-layer board, junction temperature rises 31°C above ambient at full load. For higher-power applications, increase the PCB copper area under the exposed pad to drop theta_JA below 30°C/W and ensure adequate margin against thermal shutdown.
Solder the UQFN exposed thermal pad to a continuous PCB ground plane with multiple thermal vias. Place 0.1µF ceramic and 10µF bulk decoupling capacitors as close as possible to VDD (pin 14) and VSS (pin 5). Keep switching traces away from the analog ADC inputs and provide a guard trace around sensitive analog signals to minimize crosstalk.
Do not exceed 5.5V on VDD or apply voltage to any pin before VDD is stable - this can latch-up the device. The MCLR/RA3 pin (pin 2) requires careful handling: tie to VDD via 10kΩ if not used as reset. Enable the internal weak pull-ups on unused I/O to avoid floating inputs that draw supply current. Always configure the CONFIG words before code execution to set watchdog, oscillator, and code protection.
Compliance Information
RoHS compliant per Microchip product page. PIC16F1509-I/GZVAO variant is automotive screened; standard /GZ variant is industrial grade and not AEC-Q100 qualified.
