PIC16F18857-I/ML - 56KB Flash 8-bit MCU, 32MHz XLP | Microchip
Teilenummer: PIC16F18857-I/ML ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.45 | $2,45 |
| 10 | $2.21 | $22,10 |
| 100 | $1.96 | $196,00 |
| 500 | $1.74 | $870,00 |
| 1.000 | $1.55 | $1.550,00 |
| 3.000 | $1.39 | $4.170,00 |
PIC16F18857-I/ML Übersicht
An 8-bit MCU in the Microchip PIC16 family uses a RISC Harvard-architecture core, providing deterministic instruction execution (most instructions complete in one instruction cycle) for predictable real-time behavior. The "16" in the prefix denotes the mid-range PIC16 architecture, which sits between the baseline PIC10/12/16 families and the high-performance PIC18/PIC24/dsPIC families. These MCUs are widely used in industrial automation, IoT sensor nodes, automotive body electronics, and consumer devices where low power consumption, robust peripherals, and easy in-circuit programmability outweigh the need for high clock speed. LDO regulators, EEPROM memories, and sensor ICs typically complement PIC16 designs; suitable companion devices include Microchip MCP1700 LDOs and MCP2210 USB-to-SPI bridges.
Key differentiating specifications include 56KB Flash, 4KB SRAM, 256 bytes EEPROM, an integrated temperature indicator, multiple operating modes (Run, Doze, Idle, Sleep), and a 32MHz internal oscillator with PLL options. Functional Safety (FuSa) features include a Windowed Watchdog Timer (WWDT), hardware CRC/SCAN, and a built-in self-test (BIST) capability that allows the device to satisfy IEC 60730 Class B safety requirements for home appliances, while eXtreme Low Power (XLP) technology enables nanoWatt standby currents for battery-powered designs.
Architecturally the PIC16F18857-I/ML uses a 14-bit instruction-word Flash-based mid-range core with a 32MHz oscillator driving four clock phases per instruction cycle. The Core Independent Peripheral (CIP) blocks - Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG) - execute tasks without CPU intervention, freeing the core for application logic. Voltage regulator flexibility from 1.8V to 5.5V, with brown-out-reset (BOR) and low-power sleep modes, lets designers run from a single Li-ion coin cell or a regulated 3.3V supply; the QFN exposed pad must be soldered to a continuous ground plane for thermal dissipation.
Typical applications include IoT sensor nodes, battery-powered remote controls, home appliances targeting IEC 60730 Class B safety, automotive body and interior modules, sensor interface boards, and low-cost motor-control designs. Pairing the device with an MCP2210 USB-to-SPI bridge or an external EEPROM is straightforward because the peripheral pin-select (PPS) feature lets designers route digital functions to almost any available I/O pin.
When designing with this device, ensure that the Watchdog Timer window and BOR thresholds are configured in firmware using the configuration-word settings, and confirm the QFN exposed pad is soldered to the ground plane for thermal dissipation. Using the MPLAB X IDE with the XC8 compiler in free or professional mode is recommended for full CIP-aware code generation and IEC 60730 safety library support.
This page synthesizes distributor inventory, real-time pricing across multiple quantity tiers, pin-compatible drop-in alternatives in the PIC16F1885X/7X family, and practical design notes that complement the manufacturer datasheet for faster engineering decisions.
Drop-in-Alternativen für PIC16F18857-I/ML – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16F18857-I/ML (gleiche Bauform und Footprint) – abweichend in Package, ADC, Core Architecture, Operating Temperature, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F18877-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$2.4 / Stück
Datenblatt ansehen →PIC16F18876-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$2.15 / Stück
Datenblatt ansehen →PIC16F18875-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$1.55 / Stück
Datenblatt ansehen →PIC16F18857-I/MLVAO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F18855-I/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$1.38 / Stück
Datenblatt ansehen →PIC16F18857-I/ML Grenzwerte & elektrische Eigenschaften
| Part Family | PIC16(L)F1885X/7X |
| CPU Core | PIC16 8-bit RISC (mid-range) |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data SRAM | 4 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 10-bit, with up to 25 analog channels |
| Digital I/O Pins | Up to 36 |
| CCP / ECCP Modules | 5 CCP and 3 ECCP |
| Communication Peripherals | EUSART, I2C, SPI |
| Operating Temperature (I grade) | -40 C to +85 C |
| Gehäuse | 28-pin QFN (6x6 mm) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| Functional Safety | IEC 60730 Class B capable (CRC/SCAN, WWDT, HLT) |
| Low-Power Mode | XLP eXtreme Low Power with nanoWatt standby |
PIC16F18857-I/ML Pin-Konfiguration
| Pin 1 | RA5 — Port A digital I/O / analog input |
| Pin 2 | RA4 — Port A digital I/O / analog input |
| Pin 3 | RA3 — Port A digital I/O / analog input |
| Pin 4 | RA2 — Port A digital I/O / analog input |
| Pin 5 | RA1 — Port A digital I/O / analog input |
| Pin 6 | RA0 — Port A digital I/O / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 9 | OSC1 — Crystal oscillator input or external clock |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RC0 — Port C digital I/O / analog input |
| Pin 12 | RC1 — Port C digital I/O / analog input |
| Pin 13 | RC2 — Port C digital I/O / analog input |
| Pin 14 | RC3 — Port C digital I/O (SCL peripheral, default) |
| Pin 15 | RC4 — Port C digital I/O (SDA peripheral, default) |
| Pin 16 | RC5 — Port C digital I/O / analog input |
| Pin 17 | RC6 — Port C digital I/O / analog input |
| Pin 18 | RC7 — Port C digital I/O / analog input |
| Pin 19 | RB0 — Port B digital I/O / interrupt-on-change |
| Pin 20 | RB1 — Port B digital I/O / interrupt-on-change |
| Pin 21 | RB2 — Port B digital I/O / interrupt-on-change |
| Pin 22 | RB3 — Port B digital I/O / interrupt-on-change |
| Pin 23 | RB4 — Port B digital I/O / interrupt-on-change |
| Pin 24 | RB5 — Port B digital I/O / interrupt-on-change |
| Pin 25 | RB6 — Port B digital I/O / ICSCLK |
| Pin 26 | RB7 — Port B digital I/O / ICSDAT |
| Pin 27 | MCLR — Master clear reset input (active low) |
| Pin 28 | EP — Exposed thermal pad - tie to ground copper pour |
Typische Anwendungen
PIC16F18857-I/ML ist geeignet für 6 Anwendungs: Battery-Powered IoT Sensor Node, Home Appliance Control (IEC 60730 Class B), Automotive Body and Interior Module, Industrial Sensor Interface Board, Low-Cost BLDC / FOC Motor Control, Remote Control / Wireless Beacon.
Battery-Powered IoT Sensor Node
The PIC16F18857-I/ML fits battery-powered IoT sensor nodes because of its nanoWatt XLP sleep current and 32MHz mid-range performance for periodic sampling duty cycles. With 56KB Flash and 4KB SRAM, the device can hold a protocol stack plus sensor-processing firmware (e.g., LoRaWAN or BLE beacon logic) without external memory, reducing PCB area in coin-cell designs. The integrated 10-bit ADC drives analog sensors directly, while the I2C/SPI peripherals connect to digital sensors. Core Independent Peripherals (CLC, NCO, CWG) offload repetitive tasks from the CPU so the device can sleep more frequently, extending battery life from a single CR2032 cell to multi-year operation.
Empfohlen
Home Appliance Control (IEC 60730 Class B)
For household appliances such as washing machines, dishwashers, ovens and coffee makers, the PIC16F18857-I/ML meets IEC 60730 Class B safety requirements via its Windowed Watchdog Timer (WWDT), CRC/SCAN hardware blocks and Hardware Limit Timer (HLT). These blocks detect clock anomalies and corrupted Flash in real time, triggering a safe shutdown if a fault occurs. Designers pair the MCU with the MPLAB XC8 Class B safety library and a triac-driver companion for motor and heater control via the 3 ECCP modules. The 5.5V tolerant I/O simplifies interfacing with 5V triac optocouplers common in white-goods designs.
Empfohlen
Automotive Body and Interior Module
The PIC16F18857-I/ML serves automotive body and interior modules such as seat controllers, mirror adjusters, ambient lighting drivers, and HVAC panel nodes, where its 32MHz performance and rich CIPs drive PWM lighting via the CWG and ECCP blocks. The -I industrial temperature grade and 1.8V-5.5V supply range tolerate automotive cranking transients when paired with a wide-input LDO. Automotive-grade screening is available as a separate suffix (PIC16F18857-I/MLVAO), and the 5 CCP/ECCP modules provide motor-control flexibility for HVAC flaps and lumbar pumps. Functional Safety blocks improve OEM acceptance for safety-relevant features.
Empfohlen
Industrial Sensor Interface Board
In industrial 4-20 mA loop, RTD and bridge-sensor interface boards, the PIC16F18857-I/ML converts analog readings via its 10-bit ADC and forwards them as digital data over RS-485 (EUSART) or CAN-isolated links. The 32MHz MIPS and 4KB SRAM comfortably run linearization and PID loops for process sensors, while PPS lets designers reassign peripheral functions to almost any I/O. The wide 1.8V-5.5V supply simplifies integration into loop-powered 24V systems via a small buck converter or an LDO. CRC/SCAN diagnostics catch signal-chain faults that would otherwise corrupt sensor readings.
Empfohlen
Low-Cost BLDC / FOC Motor Control
The PIC16F18857-I/ML and its 3 ECCP modules deliver sensorless or Hall-sensor BLDC motor commutation at speeds up to several thousand RPM in small fans, pumps and appliance drives. The Complementary Waveform Generator (CWG) produces dead-band-aware complementary drive signals with hardware fault protection, offloading PWM from the CPU. The peripheral pin-select (PPS) feature remaps PWM outputs to almost any I/O, simplifying PCB routing on dense motor boards. With 56KB Flash, designers implement basic field-oriented-control (FOC) libraries or trapezoidal commutation in C without external program memory.
Empfohlen
Remote Control / Wireless Beacon
In RF remote controls and beacon-style IoT transmitters, the PIC16F18857-I/ML handles button scanning, debouncing, encoding and low-duty-cycle RF transmissions while sleeping most of the time. Its 32MHz MIPS handles sub-GHz or 2.4GHz protocol encoding (e.g., proprietary or BLE-beacon framing) without external logic, while XLP nanoWatt sleep extends coin-cell life beyond the typical 2-3 year target. The 10-bit ADC can read a potentiometer slider or battery-voltage monitor for adaptive behavior. Designers add a simple SiP transceiver or discrete OOK/FSK modulator with the MCU driving it directly via SPI.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F18857-I/ML – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F18877-I/ML | PIC16F18876-I/ML | PIC16F18875-I/ML | PIC16F18857-I/MLVAO | PIC16F18855-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Flash Memory | 56 KB | 56 KB | 28 KB | 14 KB | 56 KB | 14 KB |
| SRAM | 4 KB | 4 KB | 2 KB | 1 KB | 4 KB | 1 KB |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| XLP (nanoWatt Sleep) | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (automotive) | -40C to +85C |
| Approximate Unit Price (qty 100) | $1.96 | $2.20 | $1.85 | $1.70 | $2.40 | $1.65 |
Wichtigste Unterscheidungsmerkmale
- Largest Flash/SRAM in 28-QFN PIC16F1885X family (vs. PIC16F18875-I/ML)
- Industrial-grade operating temperature with automotive option (vs. PIC16F18855-I/ML)
- Wider CIP feature set than lower-memory siblings (vs. PIC16F18876-I/ML)
Designhinweise
Estimated: at VDD=5V with all peripherals disabled and the CPU in Sleep mode, the PIC16F18857-I/ML draws a few hundred nanoamps typical due to XLP, allowing coin-cell designs to last for years. Use IDD Sleep figures from the family datasheet (40001825F) at the actual temperature and VDD of your design to size battery capacity; the WDT disabled vs enabled delta is on the order of several microamps, so disable WDT during Sleep when feasible and wake via IOC interrupts.
Solder the QFN-28 exposed pad (pin 28) to a continuous ground copper pour, ideally 1 square inch or larger on a 2-layer board. Without this thermal anchor, theta_JA rises sharply and junction temperature can exceed the -40C to +85C industrial limit during high CPU-load applications such as FOC motor control. Keep vias-in-pad stitched at 0.3-0.5mm pitch to spread heat effectively.
Do not leave the MCLR pin floating; tie it to VDD through a 10k-ohm pull-up and a 100nF decoupling cap to prevent spurious resets. Configure the configuration words early in your code: oscillator selection (INTOSC vs HS), watchdog enable/disable, code-protect bits, and LVP (low-voltage programming) must be set before the first user instruction; otherwise ISP may not function. For IEC 60730 Class B projects, ensure the WWDT window is correctly sized for the longest instruction-cycle execution path.
Keep high-current traces (motor drivers, LED strings) away from the analog AVdd rail and the ADC reference pins. Place the 100nF VDD bypass capacitor within 3mm of the VDD pin and the bulk 10uF cap nearby to suppress switching noise. Use a guard ring around the 10-bit ADC input traces if reading millivolt-level sensor signals, and route the crystal traces short and symmetric to minimize radiated EMI.
Compliance-Informationen
RoHS compliant per Microchip product page. AEC-Q100 grade variants available as separate -MLVAO ordering suffix. Not IEC 60730 -qualified by certification body; IEC 60730 Class B compliance is achieved using the on-chip FuSa blocks plus the MPLAB XC8 Class B library.
