PIC16F19156-E/SO - 8-bit 32MHz XLP MCU 28KB Flash | Microchip
Référence : PIC16F19156-E/SO ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.61 | $2,61 |
| 10 | $2.45 | $24,50 |
| 100 | $2.1 | $210,00 |
| 500 | $1.85 | $925,00 |
| 1 000 | $1.62 | $1 620,00 |
PIC16F19156-E/SO Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), peripherals, and I/O into one package. The PIC16F19156 belongs to the 8-bit MCU category, which trades raw compute throughput for ultra-low power consumption, deterministic interrupt response, and low cost. The hierarchy is: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. 8-bit MCUs remain dominant in cost- and power-sensitive segments such as consumer appliances, IoT sensors, and battery-powered instrumentation.
Key features include 28KB (16K x 14) self-programmable Flash, hardware LCD driver with charge pump capable of driving high-segment-count displays without external boost components, up to 256KB of addressable EEPROM emulation, and a rich set of Core Independent Peripherals including Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and multiple PWM/CCP modules. The XLP Sleep mode current is engineered for multi-year coin-cell operation.
The PIC16F19156 is built on an enhanced mid-range PIC16 core with a 14-bit instruction word, Harvard architecture, and 32MHz internal oscillator. It includes intelligent analog features such as a 12-bit ADC with computation, two comparators, a DAC, and a Zero-Cross Detect module. Hardware CRC and memory scan simplify IEC 60730 Class B safety compliance for appliance designs.
Typical applications include battery-powered LCD gauges, IoT sensor nodes, medical monitoring devices with display readouts, home-automation keypads with LCD, industrial HMI panels, and metering equipment. The integrated LCD charge pump eliminates external DC-DC boost converters, shrinking BOM cost and PCB area.
When designing with this MCU, place a 0.1uF decoupling capacitor as close as possible to VDD and reserve a 1uF bulk capacitor near the LCD charge-pump output pins if driving high-segment loads. Route the 32kHz low-power crystal traces short and guarded to minimize leakage in sleep-current-critical applications.
This page synthesizes distributor pricing, same-package drop-in alternatives from the PIC16F1915x family, and practical design notes not consolidated in the manufacturer datasheet, helping engineers evaluate replacements, design thermal/battery budgets, and select pin-compatible variants.
Alternatives de remplacement direct pour PIC16F19156-E/SO — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16F19156-E/SO (même facteur de forme et même empreinte) — différant par ADC, Package, Core Architecture, Operating Temperature, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16F19155-I/SO
✅ Remplacement direct✓ En stock
$1.52 / unité
Voir la fiche technique →PIC16F19155-E/SO
✅ Remplacement direct✓ En stock
$0.93 / unité
Voir la fiche technique →PIC16F19155T-I/SO
✅ Remplacement direct✓ En stock
$1.42 / unité
Voir la fiche technique →PIC16F18855-E/SO
✅ Remplacement direct✓ En stock
$1.05 / unité
Voir la fiche technique →PIC16F18855-I/SO
✅ Remplacement direct✓ En stock
$1.29 / unité
Voir la fiche technique →PIC16F19156-E/SO Valeurs maximales et caractéristiques électriques
| Core | PIC16 8-bit enhanced mid-range |
| Program Memory (Flash) | 28 KB (16K x 14) |
| Data RAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Température de fonctionnement | -40C to +125C (E suffix = extended) |
| Boîtier | 28-pin SOIC (0.295"/7.50 mm width) |
| Type de montage | Surface Mount |
| LCD Driver | Yes, with integrated charge pump |
| ADC | 12-bit with computation |
| Comparators | 2 |
| PWM Modules | Multiple CCP/PWM (see datasheet) |
| Core Independent Peripherals | CLC, CWG, NCO, CRC/Scan |
| XLP Sleep Current | Ultra-low (XLP family - see datasheet nanoWatt XLP figures) |
| Statut RoHS | Compliant |
| Instruction Word | 14-bit |
Configuration des broches de PIC16F19156-E/SO
| Broche 1 | RA5 — Port A bit 5 (ICSPCLK) |
| Broche 2 | RA4 — Port A bit 4 |
| Broche 3 | RA3 — Port A bit 3 (MCLR) |
| Broche 4 | RC5 — Port C bit 5 |
| Broche 5 | RC4 — Port C bit 4 |
| Broche 6 | RC3 — Port C bit 3 (SCL1) |
| Broche 7 | RC2 — Port C bit 2 (SDA1) |
| Broche 8 | RC1 — Port C bit 1 |
| Broche 9 | RC0 — Port C bit 0 |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Positive supply voltage |
| Broche 12 | RB7 — Port B bit 7 (ICSPDAT) |
| Broche 13 | RB6 — Port B bit 6 (ICSPCLK) |
| Broche 14 | RB5 — Port B bit 5 |
| Broche 15 | RB4 — Port B bit 4 |
| Broche 16 | RB3 — Port B bit 3 |
| Broche 17 | RB2 — Port B bit 2 |
| Broche 18 | RB1 — Port B bit 1 |
| Broche 19 | RB0 — Port B bit 0 (interrupt-on-change) |
| Broche 20 | RA0 — Port A bit 0 |
| Broche 21 | RA1 — Port A bit 1 |
| Broche 22 | RA2 — Port A bit 2 |
| Broche 23 | RC7 — Port C bit 7 (RX) |
| Broche 24 | RC6 — Port C bit 6 (TX) |
| Broche 25 | RA7 — Port A bit 7 (OSC1) |
| Broche 26 | RA6 — Port A bit 6 (OSC2) |
| Broche 27 | VSS — Ground (LCD charge-pump return) |
| Broche 28 | VDD — Positive supply (LCD charge-pump input) |
Applications typiques
PIC16F19156-E/SO convient pour 6 applications: Battery-Powered LCD Gauges, IoT Sensor Nodes, Home Automation Keypads with LCD, Medical Monitoring Devices with Display, Industrial HMI Panels, Metering Equipment (Electric/Water/Gas).
Battery-Powered LCD Gauges
The PIC16F19156-E/SO is purpose-built for battery-powered LCD gauges thanks to its integrated LCD driver with charge pump. The charge pump generates the V_bias rails directly from a 1.8V-5.5V supply, eliminating an external DC-DC boost IC and saving up to $0.30 BOM cost and 25 mm² PCB area. With 28 KB Flash, designers can fit full custom segment maps, button-debounce state machines, and unit conversion tables in a single part. XLP Sleep current in the nano-Amp range supports multi-year coin-cell operation. The MCU drives up to 248 LCD segments, suiting multi-parameter meters such as digital multimeters, gas meters, and water meters with on-glass readouts.
Recommandé
IoT Sensor Nodes
The PIC16F19156-E/SO suits IoT sensor nodes that need deterministic low-power operation and Core Independent Peripherals. The CLC, NCO, and CWG modules can run sensor-sampling, threshold-checking, and PWM generation in hardware without waking the CPU, extending battery life 5-10x over polling architectures. The 12-bit ADC with computation performs averaging and thresholding automatically, offloading the core. With 28 KB Flash, the MCU can hold small TLS or proprietary RF protocol stacks when paired with an external sub-GHz or BLE module. Operating voltage down to 1.8V supports direct connection to single-cell alkaline or lithium primary batteries.
Recommandé
Home Automation Keypads with LCD
The PIC16F19156-E/SO is ideal for wall-mounted home automation keypads with built-in LCD status displays. The on-chip driver handles 4x8 to 8x32 segment LCDs directly, freeing the CPU to manage MQTT, Zigbee, or proprietary RF traffic. Hardware CRC and memory-scan simplify IEC 60730 Class B compliance for safety-critical appliances. The 28-SOIC package fits standard 18 mm x 18 mm keypad PCBs. Combined with the 2 KB RAM, designers can buffer keypad scans, debounce matrices, and store user preferences in EEPROM without external memory.
Recommandé
Medical Monitoring Devices with Display
The PIC16F19156-E/SO powers portable medical monitors such as pulse oximeters, blood-pressure cuffs, and glucose meters that require clear numeric LCD readouts. Hardware zero-cross detect simplifies mains-isolated signal acquisition, while the 12-bit ADC supports accurate SpO2 and PPG measurements. The CRC/Scan peripheral enables IEC 60730 and IEC 60601 Class B safety verification for medical electrical equipment. The 28-SOIC footprint allows single-board miniaturization, and the 1.8V-5.5V range permits direct operation from 2xAA or rechargeable Li-Ion cells.
Recommandé
Industrial HMI Panels
The PIC16F19156-E/SO supports compact industrial HMI panels with 4 to 8 line LCD displays. Its hardware PWM can directly drive LED backlights with smooth dimming, and the CWG module generates dead-band-controlled switching waveforms for power-supply feedback. The extended -40C to +125C temperature range handles harsh factory environments. With 28 KB Flash, the MCU can store multiple language fonts, custom character sets, and Modbus RTU protocol stacks for PLC communication, all in a single chip.
Recommandé
Metering Equipment (Electric/Water/Gas)
The PIC16F19156-E/SO is well suited for utility metering designs that require accurate measurement, anti-tamper security, and segmented LCD readouts. The Zero-Cross Detect and on-chip comparators enable precise active/reactive power calculations, while the 256-byte EEPROM stores calibration constants and tamper flags. The integrated LCD charge pump drives high-segment-count displays directly from a single 3.6V lithium primary cell. Hardware CRC and memory-scan support utility-grade metering integrity requirements and IEC 62053-22 accuracy class verification.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F19156-E/SO — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16F19155-I/SO | PIC16F19155-E/SO | PIC16F19155T-I/SO | PIC16F18855-E/SO | PIC16F18855-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 28 KB | 14 KB (-50%) | 14 KB (-50%) | 14 KB (-50%) | 14 KB (-50%) | 14 KB (-50%) |
| Data RAM | 2 KB | 2 KB (same) | 2 KB (same) | 2 KB (same) | 2 KB (same) | 2 KB (same) |
| EEPROM | 256 bytes | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) |
| LCD Driver | Yes + Charge Pump | Yes + Charge Pump (same) | Yes + Charge Pump (same) | Yes + Charge Pump (same) | No LCD driver | No LCD driver |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C |
| CPU Speed (max) | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS (same) | 32 MHz / 8 MIPS (same) | 32 MHz / 8 MIPS (same) | 32 MHz / 8 MIPS (same) | 32 MHz / 8 MIPS (same) |
Principaux différenciateurs
- Largest Flash in the PIC16F1915x 28-pin SOIC family (vs PIC16F19155-I/SO)
- Integrated LCD charge pump eliminates external boost IC (vs PIC16F18855-E/SO)
- Extended temperature range for industrial and automotive use (vs PIC16F19155-I/SO)
Notes de conception
Place a 100nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 11), and a 1uF bulk capacitor near the LCD charge-pump rail. According to the Microchip datasheet 40001826D, VDD must remain above 1.8V during charge-pump load transients; bulk capacitance prevents undervoltage reset events when high-segment-count LCDs switch simultaneously. For battery-powered designs, switch the LCD charge pump off and use the internal bias divider in low-power modes to extend battery life by 30-50%.
The 28-SOIC package has 1.27 mm pin pitch and 7.50 mm body width; route all I/O traces on inner layers to avoid coupling noise into the LCD segment lines. Keep the 32kHz low-power crystal traces (SOSCO/SOSCI) under 5 mm and surrounded by a ground guard ring to minimize leakage current which can corrupt XLP sleep-current measurements. According to Microchip layout guidelines, separate analog (AVDD) and digital VDD planes if using the 12-bit ADC.
Do not skip configuring the PPS (Peripheral Pin Select) registers before using EUSART, MSSP, or PWM - unlike older PIC16F parts, the PIC16F19156 requires explicit PPS unlock sequence to map peripherals to physical pins. Also, the watchdog timer is enabled by default in some configurations; clear WDTCON during initialization to prevent unintended resets. The ICD pins (RB6/RB7) must be left as no-connect on production PCBs to avoid accidental in-circuit programming during operation.
Informations de conformité
RoHS compliant per Microchip product page. Industrial/extended temperature grade (E) is not AEC-Q100 automotive qualified - choose AEC-Q100 qualified variants such as PIC16F19156-E/SO-VO for automotive.
