PIC16F570-I/MV - 8-Bit 20MHz MCU 3KB Flash 28-UQFN | Microchip
MPN: PIC16F570-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.99 | $0.99 |
| 10 | $0.85 | $8.50 |
| 100 | $0.73 | $73.00 |
| 728 | $0.62 | $451.36 |
| 1,000 | $0.55 | $550.00 |
PIC16F570-I/MV Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripheral interfaces into one IC. The PIC16F570 belongs to the PIC16 mid-range family - 8-bit RISC microcontrollers known for deterministic instruction execution (200 ns per instruction at 20 MHz), Harvard architecture with separate program and data buses, and a broad ecosystem of MPLAB X development tools. PIC16 MCUs sit below PIC18/PIC24 in Microchip's 8-bit portfolio, offering lower cost and smaller footprints than PIC24/dsPIC parts while providing more on-chip analog than baseline PIC10/12/16F5xx devices.
Key features include 3 KB Flash with self-programmability, 64 bytes of EEPROM data memory, two 8-bit timers plus one 16-bit timer, a 10-bit ADC with multiple channels, two on-chip op-amps configurable as unity-gain buffers or amplifiers, two analog comparators with reference, an internal 8 MHz oscillator, and an integrated voltage reference. The 28-UQFN package provides a small 4x4 mm footprint suitable for space-constrained PCB designs while exposing 23 I/O pins. The device supports In-Circuit Serial Programming (ICSP) and In-Circuit Debugging (ICD) via standard 2-wire interfaces.
Architecturally, the PIC16F570 uses a Harvard RISC core with a 14-bit instruction word, 8-bit data path, and a 2-stage pipeline, delivering 200 ns instruction time at 20 MHz. The on-chip op-amps and comparators are routed through dedicated analog I/O pins and can be configured during runtime to condition sensor signals before ADC sampling - effectively replacing discrete analog front-end ICs in many designs and lowering BOM count. The 10-bit ADC with selectable reference and acquisition time delivers approximately 1 LSB accuracy at moderate conversion rates.
Typical applications include battery chargers and power management controllers, LED lighting controllers, sensor signal conditioning modules, smoke detectors, white-goods user-interface boards, and small motor control loops. The integrated op-amp + comparator + ADC chain is particularly useful for closed-loop current/voltage sensing without external analog ICs. Designers select the PIC16F570 when they need more analog integration than PIC16F505/506 but smaller code and lower cost than PIC16F193x parts.
When designing with this part, ensure that the ICSP/ICD pins (RB6/RB7) are not loaded with low-impedance circuits during programming. Use MPLAB X IDE with XC8 compiler for firmware development, and select a VDD decoupling network of 100 nF plus 10 uF bulk capacitance near the UQFN exposed pad. The exposed thermal pad must be soldered to the ground plane for mechanical reliability and electrical performance. The PIC16F570 is also available in PIC16F570-E/MV (extended temperature grade) and PIC16F570T-I/MV (tape-and-reel packaging) variants for different volume/production needs.
This page synthesizes distributor pricing, drop-in alternative cross-references, and design notes not consolidated in the Microchip datasheet.
Drop-in alternatives for PIC16F570-I/MV — 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 PIC16F570-I/MV (same form factor and footprint) — differing in ADC, Package, Data EEPROM, I/O Pins, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F570-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F570T-I/MV
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC16F570T-E/MV
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16F570-E/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.02 / Unit
View Datasheet →PIC16F570T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.2 / Unit
View Datasheet →PIC16F570-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 8-bit RISC |
| Program Memory Type | Flash |
| Program Memory Size | 3 KB (2K x 14 words) |
| Data RAM | 132 B |
| Data EEPROM | 64 B |
| Maximum CPU Speed | 20 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz |
| ADC | 10-bit multi-channel |
| On-chip Op Amps | 2 |
| On-chip Comparators | 2 |
| Timers | Two 8-bit + one 16-bit (typical PIC16F570 configuration) |
| I/O Pins | 23 (typical) |
| Package | 28-UQFN (MV) 4x4 mm |
| Operating Temperature | -40C to +85C (Industrial) |
| Internal Oscillator | 8 MHz |
| Programming/Debug | ICSP + ICD (2-wire) |
| RoHS Status | Compliant |
PIC16F570-I/MV Pin Configuration
| Pin 1 | RA0/AN0 — I/O port A bit 0 / ADC analog input 0 |
| Pin 2 | RA1/AN1 — I/O port A bit 1 / ADC analog input 1 |
| Pin 3 | RA2/AN2/VREF- — I/O port A bit 2 / ADC analog input 2 / ADC negative reference |
| Pin 4 | RA3/AN3/VREF+ — I/O port A bit 3 / ADC analog input 3 / ADC positive reference |
| Pin 5 | RA4/AN4/C1OUT — I/O port A bit 4 / ADC analog input 4 / Comparator 1 output |
| Pin 6 | RA5/AN5/C2OUT — I/O port A bit 5 / ADC analog input 5 / Comparator 2 output |
| Pin 7 | RA6/OSC2 — I/O port A bit 6 / external oscillator output |
| Pin 8 | RA7/OSC1 — I/O port A bit 7 / external oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage |
| Pin 11 | RB0/INT — I/O port B bit 0 / external interrupt |
| Pin 12 | RB1 — I/O port B bit 1 |
| Pin 13 | RB2 — I/O port B bit 2 |
| Pin 14 | RB3 — I/O port B bit 3 |
| Pin 15 | RB4 — I/O port B bit 4 |
| Pin 16 | RB5 — I/O port B bit 5 |
| Pin 17 | RB6/ICSPCLK — I/O port B bit 6 / ICSP clock (programming/debug) |
| Pin 18 | RB7/ICSPDAT — I/O port B bit 7 / ICSP data (programming/debug) |
| Pin 19 | RC0 — I/O port C bit 0 |
| Pin 20 | RC1 — I/O port C bit 1 |
| Pin 21 | RC2 — I/O port C bit 2 |
| Pin 22 | RC3 — I/O port C bit 3 |
| Pin 23 | RC4 — I/O port C bit 4 |
| Pin 24 | RC5 — I/O port C bit 5 |
| Pin 25 | RC6 — I/O port C bit 6 |
| Pin 26 | RC7 — I/O port C bit 7 |
| Pin 27 | OPA1IN+/OPA1IN- — Op-amp 1 inputs (analog function pins, exact labeling per datasheet DS40001684F) |
| Pin 28 | OPA1OUT/OPA2IN — Op-amp 1 output / Op-amp 2 input (analog function pins, exact labeling per datasheet DS40001684F) |
Typical Applications
PIC16F570-I/MV is suitable for 6 applications: Battery Charger Controllers, LED Lighting Controllers, Industrial Sensor Signal Conditioning, Smoke and Gas Detectors, Small Appliance User Interface Boards, Small DC Motor Speed Control.
Battery Charger Controllers
The PIC16F570-I/MV fits battery charger controllers because its on-chip dual op-amps can amplify current-sense shunt voltage, dual comparators can monitor voltage thresholds, and the 10-bit ADC can digitize battery voltage and temperature. At 20 MHz the PIC16 RISC core handles CC-CV charge loops, timeout logic, and LED status in real time with 200 ns instruction cycle resolution, all in a 4x4 mm 28-UQFN footprint. The integrated analog chain replaces two external op-amp ICs and a discrete comparator, reducing BOM and PCB area for compact 1-4 cell Li-ion/LiFePO4 charger modules.
Recommended
LED Lighting Controllers
The PIC16F570-I/MV suits LED lighting controllers because the on-chip dual op-amps can sense LED current via low-side shunt, dual comparators can implement over-temperature and over-current shutdown, and the 10-bit ADC can digitize ambient light sensor inputs. The 20 MHz CPU provides PWM generation at audio-immune frequencies, while 23 I/O pins drive multiple LED channels and user-interface buttons. The 4x4 mm UQFN package allows ultra-compact MR16/GU10 lamp retrofit designs where board area is at a premium.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F570-I/MV is well-suited to industrial sensor signal conditioning because its dual integrated op-amps can amplify low-level thermocouple, RTD, or bridge transducer signals, dual comparators can detect fault thresholds, and the 10-bit ADC converts the conditioned signal to digital. The -40C to +85C industrial temperature grade ensures operation in factory-floor enclosures. The 28-UQFN footprint allows compact 4-layer PCB designs that fit DIN-rail mounted sensor transmitter modules, while the PIC16 RISC architecture provides deterministic real-time response for safety loops.
Recommended
Smoke and Gas Detectors
The PIC16F570-I/MV is appropriate for smoke and gas detector modules because its on-chip op-amps can amplify photo-diode or electrochemical sensor currents, the comparators can implement low-battery and alarm thresholds, and the ADC can digitize the sensor waveform for compensation algorithms. The 20 MHz core runs horn-pattern detection routines, while the ICSP/ICD interface enables in-field firmware updates and compliance calibration. The 28-UQFN 4x4 mm footprint fits the compact ceiling-mounted smoke alarm housing, and the industrial temperature grade supports residential and light-commercial installation.
Recommended
Small Appliance User Interface Boards
The PIC16F570-I/MV supports small appliance user-interface boards because its 23 I/O pins can scan keypads and drive seven-segment or dot-matrix LCD displays, dual comparators can monitor analog knobs or rotary encoders, and the 10-bit ADC can read potentiometer positions. The 20 MHz core debounces inputs, runs user menus, and modulates relays or TRIACs. The 28-UQFN package fits compact front-panel PCBs in coffee machines, washing machines, and microwave ovens where both touch-button scanning and small analog front-ends are required.
Recommended
Small DC Motor Speed Control
The PIC16F570-I/MV can implement small brushed DC motor speed controllers because the on-chip op-amps condition back-EMF and current-shunt signals, dual comparators detect stall and over-current, and the 10-bit ADC provides feedback for closed-loop PI control. The 20 MHz RISC core generates PWM at 20-50 kHz with hardware-timer precision and executes the speed loop within 100 us. The 28-UQFN footprint fits inside small motor housings for fans, pumps, and toys, replacing discrete analog control ICs with a single integrated MCU plus driver stage.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F570-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F570-E/MV | PIC16F570T-I/MV | PIC16F570T-E/MV | PIC16F570-E/SP | PIC16F570T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (MV) 4x4 mm | 28-UQFN (MV) 4x4 mm | 28-UQFN (MV) 4x4 mm | 28-UQFN (MV) 4x4 mm | 28-SPDIP (SP) - different footprint | 28-SSOP (SS) - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
| Packaging Form | Tube | Tube | Tape-and-Reel | Tape-and-Reel | Tube | Tape-and-Reel |
| On-chip ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| On-chip Op-amps | 2 | 2 | 2 | 2 | 2 | 2 |
| On-chip Comparators | 2 | 2 | 2 | 2 | 2 | 2 |
Key Differentiators
- On-chip dual op-amp + dual comparator analog chain (vs PIC16F1939-I/MV)
- Compact 28-UQFN 4x4 mm footprint (vs PIC16F570-I/SO)
- Industrial temperature grade standard (vs PIC16F505-I/P baseline)
Design Notes
The PIC16F570-I/MV 28-UQFN package has an exposed thermal pad (EP) that MUST be soldered to a ground copper pour for mechanical reliability, electrical grounding, and thermal dissipation. Use a via array (typically 4-9 thermal vias with 0.3 mm drill, 0.5 mm pitch) connecting the EP to the internal ground plane. Place 100 nF + 10 uF decoupling capacitors within 3 mm of the VDD pin to suppress switching transients from internal peripherals.
Do not load the ICSP/ICD pins (RB6/ICSPCLK and RB7/ICSPDAT) with low-impedance circuits that prevent in-circuit programming. Add 4.7 kohm series resistors or buffering if driving LEDs or relays directly from these pins, otherwise programming will fail or in-circuit debugger handshaking will be unreliable. Reserve these pins for ICSP/ICD use during prototype bring-up and only repurpose them after firmware is locked.
The on-chip dual op-amps have limited bandwidth (~3 MHz typical GBW) and are intended for low-frequency sensor conditioning rather than high-speed signals. Route analog op-amp input/output traces away from digital switching nodes to minimize crosstalk. Use a star-ground topology where the AGND (if available on package pin) ties to the VDD decoupling ground return at one point. Place the 100 nF VDD decoupling cap as close as possible to the VDD pin.
For the 28-UQFN (MV) package, the recommended PCB land pattern is the standard 0.4 mm pitch QFN layout per IPC-7351. Pad dimensions are approximately 0.25 mm wide by 0.30 mm long, with a 3.0 x 3.0 mm center EP pad. Apply NSMD (non-solder mask defined) pads with a 0.075-0.1 mm mask expansion to reduce solder joint stress. Use a reflow profile compatible with MSL3 JEDEC J-STD-020 classification, with peak temperature <=260C.
Compliance Information
RoHS and lead-free per Microchip product page. Standard industrial-grade part - not AEC-Q100 qualified. Choose PIC16F570-E/MV with extended temperature grade for harsh-environment designs.
