PIC16F18857-E/SSVAO - 8-Bit 32MHz 56KB Flash MCU | Microchip
N.º de pieza: PIC16F18857-E/SSVAO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.58 | $25,80 |
| 100 | $2.31 | $231,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.78 | $1.780,00 |
| 3.000 | $1.52 | $4.560,00 |
PIC16F18857-E/SSVAO Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The PIC16F18857 belongs to the 8-bit microcontroller family -> microcontroller -> embedded controller -> semiconductor hierarchy. Within Microchip's portfolio it sits in the PIC16 mid-range line, designed to balance compute density, low power, and rich analog/digital peripherals for general-purpose and safety-critical applications.
Key features of this part include 56KB (32K x 14 words) of self-programmable Flash, 4KB SRAM, 256B EEPROM, 10-bit ADC channels (the package supports up to 24 I/O pins), and hardware Functional Safety (FuSa) support intended for ISO 26262 / IEC 61508 assist. The on-chip CIP (Core Independent Peripheral) block includes CRC/SCAN, Hardware Limit Timer (HLT), zero-cross detection, and configurable logic cells, which let designers offload tasks from the CPU.
The architecture uses an enhanced mid-range 8-bit PIC16 CPU with a 14-bit instruction word and a 32MHz internal oscillator. The XLP sleep currents are designed down to nanoampere levels, making the device well-suited to always-on battery systems where the MCU spends most of its life in sleep. Functional Safety assists simplify the documentation work needed when targeting safety-relevant automotive subsystems such as body controllers, sensor interfaces, and HMI nodes.
Typical applications include automotive body and chassis ECUs, LIN/CAN nodes for in-vehicle networking, low-power IoT sensor nodes, and industrial sensor signal conditioning where the ADC plus op-amp peripherals replace discrete components. The AEC-Q100 grade and FuSa assists make it a fit for ASIL-classifiable subsystems.
When designing with this part, confirm that the chosen SSOP-28 footprint has enough copper thermal relief, because AEC-Q100 grade parts often operate across -40C to +125C. Watch the SSVAO suffix ordering code carefully - the suffix marks the automotive/Vao tape-and-reel configuration, not a different silicon variant.
This page synthesizes distributor pricing, automotive-qualified drop-in alternatives, and practical design notes that are not collected on any single manufacturer or distributor page.
Alternativas directas para PIC16F18857-E/SSVAO — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16F18857-E/SSVAO (mismo factor de forma y huella) — difiere en Package, Program Memory (Flash), ADC, Operating Temperature, Communication.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F18857-E/SS
✅ Sustitución directa✓ En stock
$1.38 / unidad
Ver hoja de datos →PIC16F18857-I/SSVAO
✅ Sustitución directa✓ En stock
$2.18 / unidad
Ver hoja de datos →PIC16F18856T-E/SSVAO
✅ Sustitución directa✓ En stock
$1.82 / unidad
Ver hoja de datos →PIC16F18856T-I/SSVAO
✅ Sustitución directa✓ En stock
$2.05 / unidad
Ver hoja de datos →PIC16F18855-I/SSVAO
✅ Sustitución directa✓ En stock
$2.08 / unidad
Ver hoja de datos →PIC16F18445-E/SSVAO
✅ Sustitución directa✓ En stock
$1.42 / unidad
Ver hoja de datos →PIC16F18857-E/SSVAO Valores máximos y características eléctricas
| Family | PIC16F1885X/7X |
| Core | PIC16 8-bit enhanced mid-range |
| Program Memory (Flash) | 56 KB (32K x 14) |
| Data Memory (SRAM) | 4 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 32 MHz |
| Encapsulado | 28-SSOP (0.209", 5.30 mm width) |
| Rango de temperatura de funcionamiento | -40C to +125C (E suffix, automotive) |
| Automotive Qualification | AEC-Q100 (SSVAO suffix) |
| Functional Safety | FuSa assists (ISO 26262 / IEC 61508 capable) |
| ADC | 10-bit (channel count depends on package variant) |
| I/O Pins | Up to 24 (package-dependent) |
| Low-Power Technology | eXtreme Low Power (XLP) |
| Core Independent Peripherals | CRC/SCAN, HLT, CLC, ZCD, PWM, Op-amp |
| Communication Peripherals | UART, SPI, I2C (instance count per datasheet) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de PIC16F18857-E/SSVAO
| Pin 1 | RA0 — Port A bit 0 / analog input (per datasheet pinout) |
| Pin 2 | RA1 — Port A bit 1 / analog input (per datasheet pinout) |
| Pin 3 | RA2 — Port A bit 2 / analog input (per datasheet pinout) |
| Pin 4 | RA3 — Port A bit 3 / analog input (per datasheet pinout) |
| Pin 5 | RA4 — Port A bit 4 / analog input (per datasheet pinout) |
| Pin 6 | RA5 — Port A bit 5 / analog input (per datasheet pinout) |
| Pin 7 | RA6 — Port A bit 6 / analog input (per datasheet pinout) |
| Pin 8 | RA7 — Port A bit 7 / analog input (per datasheet pinout) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0 — Port B bit 0 / ICSPDAT (per datasheet pinout) |
| Pin 11 | RB1 — Port B bit 1 / ICSPCLK (per datasheet pinout) |
| Pin 12 | RB2 — Port B bit 2 (per datasheet pinout) |
| Pin 13 | RB3 — Port B bit 3 (per datasheet pinout) |
| Pin 14 | RB4 — Port B bit 4 (per datasheet pinout) |
| Pin 15 | RB5 — Port B bit 5 (per datasheet pinout) |
| Pin 16 | RB6 — Port B bit 6 / ICSPCLK (per datasheet pinout) |
| Pin 17 | RB7 — Port B bit 7 / ICSPDAT (per datasheet pinout) |
| Pin 18 | VSS — Optional analog ground (per datasheet) |
| Pin 19 | VDD — Core supply input |
| Pin 20 | RC0 — Port C bit 0 (per datasheet pinout) |
| Pin 21 | RC1 — Port C bit 1 (per datasheet pinout) |
| Pin 22 | RC2 — Port C bit 2 (per datasheet pinout) |
| Pin 23 | RC3 — Port C bit 3 (per datasheet pinout) |
| Pin 24 | RC4 — Port C bit 4 (per datasheet pinout) |
| Pin 25 | RC5 — Port C bit 5 (per datasheet pinout) |
| Pin 26 | RC6 — Port C bit 6 / TX (per datasheet pinout) |
| Pin 27 | RC7 — Port C bit 7 / RX (per datasheet pinout) |
| Pin 28 | VDD — Core supply input |
Aplicaciones típicas
PIC16F18857-E/SSVAO es adecuado para 6 aplicacións: Automotive Body Control Module, LIN Sensor Node, Industrial Sensor Signal Conditioning, Low-Power IoT Edge Node, Functional Safety Subsystem, HMI / Display Backpack Controller.
Automotive Body Control Module
The PIC16F18857-E/SSVAO is well matched to automotive body-control ECUs where AEC-Q100 grade, FuSa assists, and 56KB Flash are required to host a CAN/LIN stack plus diagnostics. With 32MHz CPU and 4KB SRAM, the device can run a small RTOS or cooperative scheduler handling body functions like lighting, door modules, and mirror control. The XLP sleep current below 100 nA in deep sleep allows the ECU to stay in the network without draining the battery when the vehicle is parked. Place decoupling within 3 mm of VDD/AVDD pins and route the LIN/CAN transceiver supplies from a separate rail to keep transients out of the MCU analog domain.
Recomendado
LIN Sensor Node
In LIN-based automotive sensor clusters (rain-light, seat-occupancy, HVAC flap position), the PIC16F18857-E/SSVAO runs the LIN slave stack, periodic sensor read, and CIP-based timing without CPU wake-ups. The 10-bit ADC, op-amp peripheral, and configurable logic cells (CLC) let the designer condition a Wheatstone-bridge sensor directly on-chip, replacing several discrete components. The on-chip Hardware Limit Timer (HLT) enforces bus timeouts so a faulty slave cannot lock the LIN bus. Sleep current in the XLP nanamp range lets the node meet automotive quiescent-current budgets of 100 uA per node.
Recomendado
Industrial Sensor Signal Conditioning
Beyond automotive, the PIC16F18857-E/SSVAO serves as an industrial 4-20 mA loop transmitter, RTD/thermocouple conditioner, or strain-gauge readout thanks to its integrated op-amp, 10-bit ADC, and 24 I/O pins. The CRC/SCAN peripheral detects memory corruption in long-life industrial deployments, and the FuSa assists ease IEC 61508 SIL-1 documentation work for process-sensor nodes. The 32MHz core is sufficient for first-order digital filtering without offloading to a DSP. Power the analog domain from a dedicated filtered rail to keep ADC noise under 1 LSB.
Recomendado
Low-Power IoT Edge Node
For battery-powered IoT edge devices that must run for years on a coin cell, the PIC16F18857-E/SSVAO brings XLP sleep currents in the nA range and 32MHz active mode that wakes in microseconds. The CIP peripherals (HLT, CLC, ZCD) handle sensor timing, mains zero-cross, and pulse counting without CPU intervention, which is essential for sub-1 uA average current. The 4KB SRAM can buffer protocol stacks like LoRaWAN or BLE beacons before transmission, and the 256B EEPROM stores calibration and identity across power cycles.
Recomendado
Functional Safety Subsystem
In ISO 26262 ASIL-classifiable subsystems such as electric power steering sensors, battery management auxiliary monitors, or BMS contactor drivers, the PIC16F18857-E/SSVAO provides FuSa assists that include FMEDA documentation, windowed watchdog, and CRC/SCAN memory integrity checks. The Hardware Limit Timer (HLT) enforces maximum response times for safety functions, and the configurable logic cells let designers implement redundancy logic without external components. Designers should still pair the MCU with an external watchdog supervisor and review the latest Microchip FMEDA for the chosen peripheral set.
Recomendado
HMI / Display Backpack Controller
The PIC16F18857-E/SSVAO can drive small segmented LCD or LED HMI backpacks with its PWM, CLC, and 24 I/O pins, while keeping firmware updates manageable inside 56KB Flash. The CIP-based PWM and timer chaining supports smooth LED dimming without CPU load, and the CRC module verifies boot firmware in safety-conscious HMI nodes such as steering-wheel switches and HVAC panels. The AEC-Q100 grade plus 125C operation supports placement behind the dashboard where temperatures rise under sunlight.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F18857-E/SSVAO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F18857-E/SS | PIC16F18857-I/SSVAO | PIC16F18856T-E/SSVAO | PIC16F18855-I/SSVAO |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 56 KB | 56 KB | 56 KB | 28 KB | 14 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 1 KB |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (industrial E grade per datasheet) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) |
| AEC-Q100 Grade | Yes (E grade, automotive) | No (industrial) | Yes (A grade suffix, automotive) | Yes (E grade) | Yes (A grade suffix) |
Diferenciadores clave
- 56KB Flash in a 28-SSOP automotive MCU (frente a PIC16F18855-I/SSVAO)
- AEC-Q100 with -40C to +125C and FuSa assists (frente a PIC16F18857-E/SS)
- Same 28-SSOP pinout across the PIC16F1885X/7X family (frente a ATSAM4S8CA-CFN)
Notas de diseño
Decouple VDD/AVDD within 3 mm of the pins using a 100 nF X7R ceramic in parallel with a bulk 1 uF to 4.7 uF tantalum or ceramic, plus a small ferrite bead if the rail is shared with a noisy transceiver. For automotive modules on 12 V battery inputs, add a TVS such as SMAJ16CA on VBAT and an LC pi-filter ahead of the LDO that feeds the MCU. Microchip's PIC16F1885X/7X family is designed for XLP sleep below 1 uA; verify that any unused pin is set as output low or input with the internal weak pull-up disabled to avoid leakage paths that defeat the nanoampere sleep current.
In SSOP-28, the thermal pad is the copper pour on the PCB, not the package itself. For AEC-Q100 designs operating across -40C to +125C, provide at least 1 square inch of continuous ground copper tied to VSS to keep junction temperature within margin. Estimate: at 32MHz active and typical 8 mA core current plus peripheral draw, self-heating is usually <50 mW, well within SSOP-28 thermal limits, but derating analysis is mandatory for under-hood automotive placements above 85C ambient.
Do not confuse the /SSVAO suffix with a silicon revision - the suffix marks the package (SSOP), lead-free finish (V), automotive grade (A), and tape-and-reel orientation (O). Always set the configuration bits to disable the watchdog only if an external windowed watchdog supervisor backs it up; in FuSa designs, the internal WDT plus CRC/SCAN is the primary defense against code corruption and must be enabled. Finally, reserve the ICSP pins (typically RB6/RB7) for in-circuit serial programming - if your PCB locks those pins, you will not be able to recover a locked MCU.
Información de cumplimiento
AEC-Q100 qualified per automotive ordering code /SSVAO. RoHS/lead-free indicated by 'V' in /SSVAO suffix. Conflict-minerals compliance per Microchip corporate policy.
