PIC16LF19155-E/SS - 8-bit XLP MCU 14KB Flash LCD 28-SSOP | Microchip
N.º da peça: PIC16LF19155-E/SS ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.1 | $2,10 |
| 10 | $1.84 | $18,40 |
| 100 | $1.52 | $152,00 |
| 500 | $1.28 | $640,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16LF19155-E/SS Visão geral
A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable peripherals on one die. The 8-bit class of MCUs, of which the PIC16 family is a long-established member, targets cost-sensitive embedded designs where deterministic interrupt response, low quiescent current, and small code footprint matter more than raw MIPS. The PIC16F19155 family extends the classic PIC16 architecture with Core Independent Peripherals (CIPs) that operate without CPU intervention, reducing firmware complexity and active-mode current. Hierarchy: PIC16LF19155 -> PIC16 family -> 8-bit PIC microcontroller -> microcontroller -> embedded IC -> semiconductor. Common synonyms: PIC MCU, XLP microcontroller, low-power Flash MCU.
Key differentiating specifications of this part include 14 KB Flash organized as 8K x 14 words, hardware RTCC with calendar mode, hardware Windowed Watchdog Timer (WWDT), Peripheral Module Disable (PMD) for power gating, and the integrated charge pump that allows direct LCD drive from a single Li-ion cell down to 1.8 V. The 'LF' prefix designates the wide-range 1.8 V to 3.6 V process variant rather than the 5 V-tolerant F variant.
Typical applications include battery-powered metering and utility displays, IoT sensor nodes with segmented LCD readouts, consumer health monitors with LCD UI, industrial HMI panels, and low-cost remote controls. The 28-SSOP footprint is convenient for hand-soldered prototypes while still tape-and-reel compatible for assembly.
When designing with this part, plan the pin map using PPS to route digital peripherals and route the LCD segment lines with care to balance bias generation. Always bias the unused I/O to defined levels to minimize sleep current leakage on LF-process parts.
Alternativas drop-in para PIC16LF19155-E/SS — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16LF19155-E/SS (mesmo formato e footprint) — diferindo em ADC, Family, LCD Driver, Package, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF19155-I/SS
✅ Drop-In✓ Em estoque
$0.95 / unidade
Ver ficha técnica →PIC16LF19156-I/SS
✅ Drop-In✓ Em estoque
$1.49 / unidade
Ver ficha técnica →PIC16LF19155-E/SS Classificações máximas e características elétricas
| Family | PIC16F19155 / PIC16LF19155 |
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF process) |
| Encapsulamento | 28-pin SSOP (0.209", 5.30 mm width, 0.65 mm pitch) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +125C (E suffix = industrial extended) |
| ADC | 12-bit ADC2 with Computation |
| DAC | 5-bit DAC |
| LCD Driver | Integrated segmented LCD driver with charge pump |
| Comparators | Low-power comparators (LP COMP) |
| Timers / PWM / CCP | PWM, CCP, CWG (Complementary Waveform Generator), SMT |
| ZCD / RTCC / WWDT | Zero-Cross Detect, RTCC, Windowed WDT, PMD |
| PPS | Peripheral Pin Select (digital peripheral remapping) |
| Status RoHS | Compliant |
Configuração de pinos do PIC16LF19155-E/SS
| Pino 1 | RA0 — PORTA bit 0 / analog input / LCD segment |
| Pino 2 | RA1 — PORTA bit 1 / analog input / LCD segment |
| Pino 3 | RA2 — PORTA bit 2 / analog input / LCD segment |
| Pino 4 | RA3 — PORTA bit 3 / analog input / LCD segment |
| Pino 5 | RA4 — PORTA bit 4 / analog input / LCD segment |
| Pino 6 | RA5 — PORTA bit 5 / analog input / LCD segment |
| Pino 7 | RA6 — PORTA bit 6 / analog input / LCD segment |
| Pino 8 | RA7 — PORTA bit 7 / analog input / LCD segment |
| Pino 9 | VSS — Ground reference |
| Pino 10 | RB0 — PORTB bit 0 / analog / LCD segment |
| Pino 11 | RB1 — PORTB bit 1 / analog / LCD segment |
| Pino 12 | RB2 — PORTB bit 2 / analog / LCD segment |
| Pino 13 | RB3 — PORTB bit 3 / analog / LCD segment |
| Pino 14 | RB4 — PORTB bit 4 / analog / LCD segment |
| Pino 15 | RB5 — PORTB bit 5 / analog / LCD segment |
| Pino 16 | RB6 — PORTB bit 6 / ICSPCLK programming clock |
| Pino 17 | RB7 — PORTB bit 7 / ICSPDAT programming data |
| Pino 18 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pino 19 | VSS — Ground reference |
| Pino 20 | RC0 — PORTC bit 0 / analog / LCD segment |
| Pino 21 | RC1 — PORTC bit 1 / analog / LCD segment |
| Pino 22 | RC2 — PORTC bit 2 / analog / LCD segment |
| Pino 23 | RC3 — PORTC bit 3 / analog / LCD segment |
| Pino 24 | RC4 — PORTC bit 4 / analog / LCD segment |
| Pino 25 | RC5 — PORTC bit 5 / analog / LCD segment |
| Pino 26 | RC6 — PORTC bit 6 / analog / LCD segment |
| Pino 27 | RC7 — PORTC bit 7 / analog / LCD segment |
| Pino 28 | MCLR — Master clear (reset) input / programming voltage |
Aplicações típicas
PIC16LF19155-E/SS é adequado para 6 aplicaçãos: Battery-Powered Metering with LCD Readout, IoT Sensor Nodes with Segmented LCD, Consumer Health Monitors with LCD UI, Industrial HMI Keypad/LCD Panels, Appliance Front Panels and White-Goods Displays, Low-Cost Remote Controls with LCD Status.
Battery-Powered Metering with LCD Readout
The PIC16LF19155-E/SS is an ideal fit for battery-powered electricity, water, or gas meters because its 1.8 V to 3.6 V VDD range matches a single 1.5 V AA or 3.6 V Li-SOCl2 cell, and the on-chip segmented LCD driver with integrated charge pump eliminates the external negative bias supply that discrete designs need. With up to 96 LCD segments on the 28-SSOP pinout, the part can drive an 8-digit consumption display plus status icons without an external driver. The 14 KB Flash stores tariff tables and calibration constants, while the 256-byte EEPROM retains cumulative consumption across battery swaps. XLP sleep current below 1 uA and the dedicated RTCC enable 10+ year battery life on a single cell.
Recomendado
IoT Sensor Nodes with Segmented LCD
For wireless sensor nodes that display a temperature, humidity, or pressure reading on a glass LCD, the PIC16LF19155-E/SS provides the integrated charge pump, 12-bit ADC2 with Computation oversampling, and the RTCC calendar to wake the radio on a schedule - all without an external boost or bias IC. The 1 KB SRAM is sufficient for sensor data buffering between transmissions, and the 14 KB Flash accommodates Zigbee or LoRaWAN MAC stacks plus application logic. PPS lets the designer remap UART, SPI, and I2C to any digital pin, simplifying the PCB layout for a compact sensor puck.
Recomendado
Consumer Health Monitors with LCD UI
Blood-pressure cuffs, glucometers, and digital thermometers benefit from the PIC16LF19155-E/SS's combination of the 12-bit ADC2 for accurate sensor reading, the 5-bit DAC for stimulus generation, and the segmented LCD driver that renders readings and units directly. The industrial-extended -40C to +125C operating range (E suffix) allows the same BOM to ship across geographies. Sleep currents under 1 uA extend battery life on two AAA cells past 1000 measurements. The PIC16LF18856 family part offers a higher-pin-count option if the design later adds Bluetooth Low Energy.
Recomendado
Industrial HMI Keypad/LCD Panels
Industrial human-machine-interface (HMI) panels with 4 to 16 keys and a small monochrome LCD benefit from the PIC16LF19155-E/SS's mappable peripherals and hardware Zero-Cross Detect (ZCD) for triac-based backlight or heater dimming. The Core Independent Peripherals (CIPs) handle keypad scanning and PWM dimming without CPU intervention, leaving MIPS for communication stacks. The 28-SSOP footprint is convenient for through-hole assembly rework in the field, while still RoHS-compliant for modern production. PPS allows UART, I2C, and SPI to route to terminal connectors without pin re-mapping rework.
Recomendado
Appliance Front Panels and White-Goods Displays
Washing machines, ovens, and dishwashers use the PIC16LF19155-E/SS to drive the front-panel segmented LCD, read the keypad, and control relays via PWM or CWG outputs. The Complementary Waveform Generator (CWG) produces dead-band-aware complementary outputs for half-bridge motor drive, and the Windowed WDT meets IEC 60730 Class B software-safety requirements for unattended appliances. The wide 1.8 V to 3.6 V VDD range survives brownouts and noisy rectified mains, while the industrial-extended temperature grade handles under-cabinet heat.
Recomendado
Low-Cost Remote Controls with LCD Status
Smart-home and AV remote controls with a small status LCD benefit from the PIC16LF19155-E/SS's XLP sleep current, integrated segmented LCD, and PPS-based IR-modulator output. The 14 KB Flash accommodates IR protocol libraries for multiple brands, while the 256-byte EEPROM stores paired device IDs. The 32 MHz internal oscillator removes the need for an external crystal on space-constrained remotes, and the 1.8 V to 3.6 V VDD supports 2x AA or a single Li-ion battery.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF19155-E/SS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF19155-I/SS | PIC16LF19156-I/SS | PIC16LF19155-E/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SPDIP (through-hole) |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| Data SRAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| LCD Driver | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) |
| Approx. 1-piece Price (USD) | 2.10 | 1.85 - 2.05 | 1.90 - 2.10 | 2.15 - 2.30 |
Principais diferenciais
- Extended industrial temperature range at the same pin footprint (vs PIC16LF19155-I/SS)
- Identical peripheral set in the same package across dies (vs PIC16LF19156-I/SS)
- Higher temperature grade in surface-mount package (vs PIC16LF19155-E/SP)
Notas de projeto
Estimated: at 3.3 V VDD with the CPU idle and the LCD charge pump driving a 96-segment 1/4 duty glass, the PIC16LF19155-E/SS typically draws 2-5 uA in sleep. To hit the XLP < 1 uA headline, disable the charge pump in LCDCON, switch unused peripherals off via PMD, and freeze unused I/O to defined levels (input mode with weak pull-up or output low). The 'LF' process variant has lower leakage than the F variant, but per-pin leakage still scales with junction temperature.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 18) and a bulk 1 uF to 4.7 uF on the same VDD net. Keep the MCLR pull-up (typically 10 kohm) close to the pin. For noise-sensitive ADC readings, separate the analog VDD trace from the digital VDD trace and add a ferrite bead. The 0.65 mm SSOP pitch is comfortable for hand-soldering with a fine tip but watch for solder bridges between adjacent LCD segment lines that route in parallel.
Route the LCD segment lines as a matched-length bus where possible to keep the segment drive waveform symmetric and minimize ghosting. The COMx and SEGx lines should not cross sensitive analog traces. Place the LCD bias capacitor (typically 1 uF) within 5 mm of the VLCD pin if your design uses the internal charge pump. Keep the ICSPDAT/ICSPCLK pair (RB6/RB7) routed together to avoid programming connector stub mismatches.
Do not assume the LF and F process variants are interchangeable - voltage range, ADC reference behavior, and LCD charge-pump operation differ. Always read the device ID register at startup if your firmware supports multiple family members. When migrating between PIC16LF19155 and PIC16LF19156, re-validate peripheral mapping and PPS routing because the 19156 die exposes additional peripherals on the same 28-SSOP footprint.
Informações de conformidade
RoHS and lead-free status per Microchip product page and distributor listings. AEC-Q100 automotive qualification is not claimed; the E suffix denotes industrial-extended temperature grade (-40C to +125C), not full automotive certification.
