PIC16F1507-I/SO - 8-bit 20MHz 3.5KB Flash MCU 20-SOIC | Microchip
MPN: PIC16F1507-I/SO β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.84 | $1.84 |
| 10 | $1.62 | $16.20 |
| 100 | $1.39 | $139.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.02 | $1,020.00 |
| 3,000 | $0.92 | $2,760.00 |
PIC16F1507-I/SO Overview
An 8-bit microcontroller is a single-chip computer that processes data in 8-bit chunks and is widely used for embedded control where deterministic, low-power operation is more important than raw compute throughput. The PIC16F1507 sits within Microchip's enhanced mid-range PIC16 family, which extends up the taxonomy to PIC microcontrollers, then to microcontrollers (MCUs), then to embedded processors, and finally to semiconductors. This hierarchy makes the PIC16F1507 particularly suited to mixed-signal glue logic, sensor interfacing, and stand-alone control tasks where the alternative would be discrete logic or a larger MCU with unused peripherals.
Key differentiating features include Core Independent Peripherals (CIPs) such as CLC, NCO, and CWG that offload timing-critical tasks from the CPU, 4 PWM channels, 4 10-bit ADC channels, an internal 16 MHz precision oscillator (HFINTOSC selectable to 16 or 32 MHz via OSCTUNE), and an on-chip voltage reference. The device operates from 2.3V to 5.5V and supports in-circuit serial programming (ICSP) via the standard PICkit/MPLAB ICD toolchain. The wide Vdd range, with IECIP and CIP analog building blocks, enables direct interfacing with both 3.3V and 5V sensors without level shifters.
The architecture is a Harvard RISC design with a 14-bit instruction word and a single-cycle hardware multiplier, which provides deterministic 200 ns instruction execution and fast bit-manipulation. Up to 4 hardware breakpoints and in-circuit debugging via ICSP and ICD reduce firmware development time, while the 256-byte EEPROM-style data Flash emulation supports non-volatile parameter storage in field deployments.
Typical applications include consumer white goods user-interface controls, low-cost sensor hubs, LED driver controllers, battery-powered handheld instruments, and general-purpose timing logic in industrial control panels. The SOIC-20 package, IEC, and SO-package legacy tooling make it a drop-in upgrade for older PIC16C/F7x designs.
When designing, ensure the input clock configuration is locked (IRCF plus SCS bits in OSCCON) before peripheral timing, and verify ADC acquisition time against source impedance. The CWG and NCO require the HFINTOSC for jitter-free output, so route HFINTOSC and not the LFINTOSC for those blocks.
This page synthesizes drop-in alternatives, design notes, and parametric comparison not consolidated in any single distributor listing, giving engineers a faster path to part selection and risk review.
Drop-in alternatives for PIC16F1507-I/SO 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 PIC16F1507-I/SO (same form factor and footprint) β differing in ADC, Package, Program Memory (Flash), Internal Oscillator, MSL Level.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1507-E/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1507-I/SP
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1503-I/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1508-I/SO
β Drop-Inβ In Stock
$0.92 / Unit
View Datasheet βPIC16F1509-I/SO
β Drop-Inβ In Stock
$1.34 / Unit
View Datasheet βPIC16F1459-I/SS
β Drop-Inβ In Stock
$1.55 / Unit
View Datasheet βPIC16F1507-I/SO Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Set Width | 14-bit |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| SRAM | 128 bytes |
| EEPROM / Data Flash Emulation | Not present on this device |
| Maximum CPU Clock | 20 MHz |
| Instruction Execution Time | 200 ns (5 MIPS per MHz) |
| Operating Voltage (Vdd) | 2.3 V to 5.5 V |
| I/O Pins | 18 |
| ADC | 10-bit, up to 12 channels (4 dedicated + shared) |
| PWM Channels | 4 (10-bit resolution) |
| Comparators | 2 (with selectable reference) |
| Timers | 4 (Timer0, Timer1, Timer2, plus WDT/SMT block) |
| UART | 1 (EUSART with Auto-Baud Detect) |
| I2C / SPI | 1 MSSP (I2C/SPI selectable) |
| Core Independent Peripherals | CLC, NCO, CWG, PWM, Configurable Logic |
| Internal Oscillator | 16 MHz HFINTOSC (selectable 16/32 MHz) |
| Operating Temperature Range | -40C to +85C (Industrial -I grade) |
| Package | 20-pin SOIC (0.295 inch, 7.50 mm body width) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-free matte tin) |
| Programming/Debug | ICSP via PICkit 3, MPLAB ICD 3/4 |
PIC16F1507-I/SO Pin Configuration
| Pin 1 | RA3/AN3 β Bidirectional I/O / Analog input 3 |
| Pin 2 | RA4/AN4 β Bidirectional I/O / Analog input 4 / CWG output source |
| Pin 3 | RA5/MCLR/VPP β Bidirectional I/O / Master Clear (reset, active-low) / Programming voltage |
| Pin 4 | RA6/OSC2/CLKOUT β Bidirectional I/O / Crystal oscillator output / Clock output |
| Pin 5 | RA7/OSC1/CLKIN β Bidirectional I/O / Crystal oscillator input / External clock input |
| Pin 6 | VSS β Ground reference |
| Pin 7 | RA0/AN0/CLCIN0 β Bidirectional I/O / Analog input 0 / CLC input 0 |
| Pin 8 | RA1/AN1/CLCIN1 β Bidirectional I/O / Analog input 1 / CLC input 1 |
| Pin 9 | RA2/AN2 β Bidirectional I/O / Analog input 2 |
| Pin 10 | RC0 β Bidirectional I/O / EUSART TX |
| Pin 11 | RC1 β Bidirectional I/O / EUSART RX |
| Pin 12 | RC2/AN6 β Bidirectional I/O / Analog input 6 |
| Pin 13 | RC3/AN7 β Bidirectional I/O / Analog input 7 |
| Pin 14 | RC4 β Bidirectional I/O / MSSP SDO / SDA |
| Pin 15 | RC5 β Bidirectional I/O / MSSP SDI / SCL |
| Pin 16 | RC6/AN8 β Bidirectional I/O / Analog input 8 |
| Pin 17 | RC7/AN9 β Bidirectional I/O / Analog input 9 |
| Pin 18 | RB4/AN10 β Bidirectional I/O / Analog input 10 |
| Pin 19 | RB5/AN11 β Bidirectional I/O / Analog input 11 |
| Pin 20 | VDD β Positive supply voltage (2.3V to 5.5V) |
Typical Applications
PIC16F1507-I/SO is suitable for 6 applications: Sensor Hub and Front-End Conditioning, Consumer Appliance User Interface, LED Driver and Lighting Controller, Battery-Powered Handheld Instrument, Industrial Control Timing and Logic, Timing and Pulse Generation Subsystem.
Sensor Hub and Front-End Conditioning
The PIC16F1507-I/SO is well suited as a low-power sensor hub thanks to its 10-bit ADC, two comparators, and 18 I/O that can scan multiple analog inputs with minimal firmware overhead. The Core Independent Peripherals (CLC, NCO, CWG) offload signal conditioning from the CPU, while 128 B SRAM and 3.5 KB Flash fit typical state machines for thermistor, RTD, and photo-diode front-ends. Operating from 2.3V to 5.5V lets the same firmware handle 3.3V and 5V sensor rails, and sub-100nA sleep current suits battery-backed environmental nodes.
Recommended
Consumer Appliance User Interface
In white-goods user-interface panels, the PIC16F1507-I/SO provides 18 I/O to drive 7-segment displays, keypads, and LED indicators while the 4-channel PWM smoothly fades status LEDs and backlights. The CWG can generate complementary drive signals for power-indicator buzzer or simple resonant half-bridge. With internal 16 MHz HFINTOSC and 128 B SRAM, no external crystal is required, lowering BOM cost. Industrial temperature rating and 5V tolerance allow direct connection to legacy appliance wiring and triac interfaces.
Recommended
LED Driver and Lighting Controller
The PIC16F1507-I/SO drives LED strings via its 4 PWM channels with 10-bit resolution, while the Complementary Waveform Generator (CWG) produces dead-band-controlled outputs for synchronous buck or boost LED drivers. The Numerically Controlled Oscillator (NCO) generates high-resolution frequencies for color-mixing applications, and CLC builds AND/OR/XOR glue logic to combine fault inputs without external gates. The 2.3V to 5.5V supply range covers both single-cell Li-ion and 5V USB-powered luminaires.
Recommended
Battery-Powered Handheld Instrument
The PIC16F1507-I/SO's XLP technology with sub-100nA sleep current makes it ideal for battery-powered measurement tools where duty cycle is low. The internal 16 MHz oscillator eliminates an external crystal, reducing quiescent draw and BOM count, and the 1.024V fixed voltage reference (FVR) enables ratiometric ADC measurements for battery voltage monitoring. The EUSART with auto-baud detects serial commands directly from a host, while the MSSP supports SPI sensor interfaces for pressure or humidity ICs.
Recommended
Industrial Control Timing and Logic
For industrial panels, the PIC16F1507-I/SO replaces discrete logic with a single chip that combines counters, timers, glue logic (CLC), and frequency synthesis (NCO). Its 5V tolerance and -40C to +85C rating suit factory-floor environments, while 18 I/O directly drive relays, optocouplers, and indicator LEDs without level shifting. The ICSP interface supports field firmware updates over the same ICSP pins used in development, reducing service cost. The EUSART serves as a Modbus RTU slave for simple PLC integration.
Recommended
Timing and Pulse Generation Subsystem
The PIC16F1507-I/SO acts as a precise timing subsystem using its NCO for high-resolution frequency synthesis and PWM for duty-cycle control, achieving sub-Hz resolution without external DDS chips. CLC blocks implement dead-band, edge-delay, and sequence logic, while the SMT (Signal Measurement Timer) measures pulse widths for pulse-train sensors. The MSSP can drive SPI peripherals such as DACs for waveform generation. Operating from 2.3V to 5.5V allows integration into both 3.3V and 5V timing modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1507-I/SO β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1507-E/SO | PIC16F1507-I/SP | PIC16F1503-I/SO | PIC16F1508-I/SO | PIC16F1509-I/SO | PIC16F1459-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-20 (SO) | SOIC-20 (SO) - same | SPDIP-20 - same pins, thru-hole | SOIC-20 (SO) - same | SOIC-20 (SO) - same | SOIC-20 (SO) - same | SSOP-20 (SS) - same 20-pin count |
| Flash | 3.5 KB | 3.5 KB | 3.5 KB | 2 KB (-43%) | 7 KB (+100%) | 14 KB (+300%) | 8 KB |
| SRAM | 128 B | 128 B | 128 B | 128 B | 256 B (+100%) | 1024 B (+700%) | 1024 B |
| I/O Pins | 18 | 18 | 18 | 18 | 18 | 18 | 17 (-1, USB pins) |
| Max CPU Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 48 MHz (USB-capable) |
| USB | No | No | No | No | No | No | Yes (USB 2.0 FS) |
| Operating Voltage | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| CIPs (CLC/NCO/CWG) | Yes | Yes | Yes | Yes | Yes | Yes | No (different family) |
Key Differentiators
- Higher ADC channel count than baseline PIC16F1xxx (vs PIC16F1455-I/SL)
- Industrial temperature grade by default (vs PIC16F1455-I/SL)
- On-chip CWG with dead-band control (vs PIC16F1503-I/SO)
- 20-pin SOIC with full peripheral set (vs PIC16F1509-I/SO)
Design Notes
Estimated: the PIC16F1507-I/SO draws up to ~4 mA at 20 MHz and 5V, so a 100 mA LDO provides 25x margin. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a 10 uF bulk capacitor near the supply rail. The XLP sleep current of <100 nA requires that the LFINTOSC and WDT be software-disabled (OSCCON bits SCS=00, WDTCON bits SWDTEN=0) for the absolute lowest sleep consumption.
The SOIC-20 package has a 1.27 mm pitch and 0.300 inch row spacing. Route the ICSP signals (PGC/PGD) as a short 2-wire pair to a 1x5 header on the board edge to allow PICkit 3/4 and ICD 3/4 to connect without disturbing the layout. Keep clock traces (OSC1/OSC2) short and surround them with a ground pour to reduce HFINTOSC pickup. If using an external crystal, keep traces symmetric and ground-surrounded.
Do not assume EEPROM is present: PIC16F1507 has no on-chip EEPROM, so non-volatile data must be stored in Flash using the data-Flash emulation pattern (4-word write granularity, erase by row). Also confirm the configuration word WDT, BOR, and IESO settings before locking the part, and ensure the PWRTE bit is enabled for clean power-on. The 1.024V FVR requires at least 1 us settling time before ADC sampling, per datasheet timing diagram.
When using the NCO block for high-frequency outputs, route its source from the HFINTOSC (not LFINTOSC) to avoid jitter from the 31 kHz oscillator. The MSSP in SPI mode requires the SDO, SDI, and SCK traces to be length-matched to within 25 mm to avoid setup/hold violations at 5 MHz SCK. The CWG dead-band control uses a 4-bit counter, so minimum dead time is one peripheral clock period - insufficient for high-side/low-side MOSFET switching above 1 MHz PWM.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 equivalent from PIC16F1xxx automotive grade for vehicle applications. Halogen-free per Microchip material declaration.
