PIC16LF1784-I/ML - 8-Bit MCU, 7KB Flash, 44-QFN | Microchip
料号： PIC16LF1784-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.42 | $1,210.00 |
| 1,000 | $2.15 | $2,150.00 |
PIC16LF1784-I/ML 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and configurable peripherals (ADC, timers, communication interfaces, comparators) on one die. PIC16LF MCUs occupy the mid-range tier of Microchip's 8-bit portfolio: more capable than baseline PIC10/PIC12 devices, simpler than 16-bit PIC24 or dsPIC parts. The "LF" prefix denotes the 1.8V-3.6V wide-voltage, ultra-low-power variant of the PIC16F1784 family, allowing direct Li-ion or 2x AA battery operation with sleep currents in the nanoamp range per nanoWatt XLP.
Key features include 32 MHz maximum internal oscillator, three PSMC channels with 16 ns resolution and dead-band control for digital power conversion, three op-amps configurable as amplifiers or comparators, two 8-bit DACs, a 12-bit differential ADC with computation (ADC2), and Core Independent Peripherals (CIPs) such as CLC, NCO, and PWM that operate without CPU intervention. The 44-pin QFN (ML) package provides 36 I/O pins and an exposed pad for thermal dissipation in space-constrained designs.
The architecture uses a Harvard RISC engine with 14-bit instructions and a 16-level hardware stack, giving deterministic interrupt latency critical for digital power control loops. Three PSMC channels with 16 ns edge placement resolution support buck, boost, push-pull, and 3-phase topologies - effectively turning this MCU into a programmable mixed-signal controller.
Typical applications include switch-mode power supplies (SMPS), LED lighting drivers, battery chargers, sensor signal conditioning, BLDC motor control (auxiliary), and portable instrumentation where battery life, mixed-signal integration, and small PCB area all matter. The wide 1.8V-3.6V operating range lets it run directly from a single-cell Li-ion or two AA cells.
When designing with this part, reserve one I/O pin for ICSP programming (ICSPCLK/ICSPDAT) and avoid remapping it onto peripheral outputs. For PSMC-based converters, place the bootstrap/driver components within 5 mm of the device and follow the recommended PCB layout in the datasheet's SMPS section to keep the analog feedback loop free of switching noise.
This page synthesizes distributor pricing, drop-in alternatives in the same 44-QFN footprint, and practical design notes not aggregated in any single manufacturer or distributor resource.
直接替换替代料： PIC16LF1784-I/ML ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LF1784-I/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Program Memory (Flash), Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1783-I/ML
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16LF1782-I/ML
✅ 直接替换✓ 有现货
$1.24 / 个
查看数据手册 →PIC16LF1769-I/ML
✅ 直接替换✓ 有现货
$1.65 / 个
查看数据手册 →PIC16LF1768-I/ML
✅ 直接替换✓ 有现货
$1.32 / 个
查看数据手册 →PIC16LF1718-I/ML
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16LF1507-I/ML
✅ 直接替换✓ 有现货
$0.55 / 个
查看数据手册 →PIC16LF1784-I/ML 最大额定值与电气特性
| Architecture | 8-bit PIC16 enhanced mid-range RISC |
| Program Memory (Flash) | 7 KB |
| Data SRAM | 512 bytes |
| EEPROM | 256 bytes |
| 引脚数量 | 44 |
| 封装 | QFN-44 (ML) with exposed pad |
| I/O Pins | 36 |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| ADC | 12-bit differential, ADC2 with computation |
| DAC | 8-bit, 2 channels |
| PSMC Modules | 3 (16-bit, 16 ns edge resolution) |
| On-chip Op-amps | Yes, configurable |
| Comparators | Yes, fast rail-to-rail |
| Communication | I2C, SPI, EUSART (RS-485 capable) |
| 工作温度 | -40C to +85C (Industrial, "I") |
| Low-Power Technology | nanoWatt XLP |
| 安装类型 | Surface Mount |
| RoHS | Compliant |
PIC16LF1784-I/ML 引脚配置
| 引脚 1 | RA0/AN0/C1IN0+/C2IN0+/DACOUT1 — Bidirectional I/O; analog input; comparator input; DAC output |
| 引脚 2 | RA1/AN1/C1IN1-/C2IN1- — Bidirectional I/O; analog input; comparator input |
| 引脚 3 | RA2/AN2/DACOUT2/C2IN0+ — Bidirectional I/O; analog input; DAC output; comparator input |
| 引脚 4 | RA3/AN3/Vref+/C1IN1+ — Bidirectional I/O; analog input; voltage reference; comparator input |
| 引脚 5 | RA4/AN4/T0CKI/C1OUT — Bidirectional I/O; analog input; Timer0 clock; comparator output |
| 引脚 6 | RA5/AN5/C2OUT — Bidirectional I/O; analog input; comparator output |
| 引脚 7 | RA6/AN6 — Bidirectional I/O; analog input |
| 引脚 8 | RA7/AN7 — Bidirectional I/O; analog input |
| 引脚 9 | Vdd — Positive supply voltage (1.8V-3.6V) |
| 引脚 10 | Vss — Ground reference |
| 引脚 11 | RB0/AN12/CCP4/SRI — Bidirectional I/O; analog input; CCP; SR latch input |
| 引脚 12 | RB1/AN10/C1IN3-/C2IN3-/SRI — Bidirectional I/O; analog input; comparator; SR latch input |
| 引脚 13 | RB2/AN8/PWM3/SRI — Bidirectional I/O; analog input; PWM output; SR latch input |
| 引脚 14 | RB3/AN9/C1IN2-/C2IN2-/MDCIN1/SRI — Bidirectional I/O; analog input; comparator; MDC input |
| 引脚 15 | RB4/AN11/PWM4/SRI — Bidirectional I/O; analog input; PWM output; SR latch input |
| 引脚 16 | RB5/AN13/PWM5/SRI — Bidirectional I/O; analog input; PWM output; SR latch input |
| 引脚 17 | RB6/ICSPCLK/ICDCLK — Bidirectional I/O; ICSP programming clock |
| 引脚 18 | RB7/ICSPDAT/ICDDAT — Bidirectional I/O; ICSP programming data |
| 引脚 19 | RC0/PWM6 — Bidirectional I/O; PWM output |
| 引脚 20 | RC1/CCP2/PWM7 — Bidirectional I/O; CCP; PWM output |
| 引脚 21 | RC2/CCP1/P1A — Bidirectional I/O; CCP; PWM output |
| 引脚 22 | RC3/SCK/SCL — Bidirectional I/O; SPI clock; I2C clock |
| 引脚 23 | RC4/SDI/SDA — Bidirectional I/O; SPI data in; I2C data |
| 引脚 24 | RC5/SDO — Bidirectional I/O; SPI data out |
| 引脚 25 | RC6/TX/CK/AN18 — Bidirectional I/O; EUSART TX/CK; analog input |
| 引脚 26 | RC7/RX/DT/AN19 — Bidirectional I/O; EUSART RX/DT; analog input |
| 引脚 27 | RC8/AN20 — Bidirectional I/O; analog input |
| 引脚 28 | RC9/AN21 — Bidirectional I/O; analog input |
| 引脚 29 | RD0/AN22 — Bidirectional I/O; analog input |
| 引脚 30 | RD1/AN23/CCP3 — Bidirectional I/O; analog input; CCP |
| 引脚 31 | RD2/AN24/PWM8 — Bidirectional I/O; analog input; PWM output |
| 引脚 32 | RD3/AN25/PSMC1A — Bidirectional I/O; analog input; PSMC channel 1A |
| 引脚 33 | RD4/AN26/PSMC1B — Bidirectional I/O; analog input; PSMC channel 1B |
| 引脚 34 | RD5/AN27/PSMC1C/PSMC1D — Bidirectional I/O; analog input; PSMC channel 1C/1D |
| 引脚 35 | RD6/AN28/PSMC2A/PSMC2B — Bidirectional I/O; analog input; PSMC channel 2A/2B |
| 引脚 36 | RD7/AN29/PSMC2C/PSMC2D — Bidirectional I/O; analog input; PSMC channel 2C/2D |
| 引脚 37 | RE0/AN5/PSMC3A — Bidirectional I/O; analog input; PSMC channel 3A |
| 引脚 38 | RE1/AN6/PSMC3B — Bidirectional I/O; analog input; PSMC channel 3B |
| 引脚 39 | RE2/AN7/PSMC3C — Bidirectional I/O; analog input; PSMC channel 3C |
| 引脚 40 | RE3/AN8/PSMC3D — Bidirectional I/O; analog input; PSMC channel 3D |
| 引脚 41 | Vdd — Positive supply voltage (1.8V-3.6V) |
| 引脚 42 | Vss — Ground reference |
| 引脚 43 | Vcap — Decoupling capacitor for internal LDO (core voltage) |
| 引脚 44 | EP — Exposed thermal pad - must be soldered to ground plane for thermal dissipation |
典型应用
PIC16LF1784-I/ML 适用于 7 应用s: Battery-Powered Sensor Node, Digital Switch-Mode Power Supply (SMPS), LED Lighting Driver, Portable Medical Monitoring, Industrial Process Sensor Transmitter, IoT Smart Home Sensor Hub, Automotive Auxiliary Body Controller.
Battery-Powered Sensor Node
The PIC16LF1784-I/ML's 1.8V-3.6V wide-voltage range allows direct single-cell Li-ion or 2x AA battery operation without a boost converter, eliminating quiescent draw. Its nanoWatt XLP sleep current below 50 nA preserves battery life for years in duty-cycled sensor nodes. Three PSMC channels can drive status LEDs or simple boost converters, while the 12-bit differential ADC with computation (ADC2) handles bridge or thermocouple sensor inputs. Pin-compatible PIC16LF1782-I/ML or PIC16LF1783-I/ML serve as cost-reduced variants when fewer SMPS channels are needed.
推荐
Digital Switch-Mode Power Supply (SMPS)
The three Programmable Switch Mode Controller (PSMC) modules deliver 16-bit Period/Duty Cycle/Phase control with 16 ns edge-placement resolution, supporting buck, boost, push-pull, and 3-phase topologies. Auto-shutdown, dead-band control, and edge blanking protect power FETs from shoot-through. Three on-chip op-amps close the voltage and current feedback loops without external amplifiers, reducing BOM cost. The 32 MHz core computes digital compensators at over 1 MHz loop bandwidth. Designers moving to higher-voltage rails should also evaluate PIC16LF1769-I/ML or PIC16LF1768-I/ML for additional op-amp channels.
推荐
LED Lighting Driver
The three PSMC channels generate high-resolution PWM outputs for RGBW LED dimming, with dead-band control preventing shoot-through in half-bridge topologies. The 12-bit ADC reads ambient light sensors or current-sense amplifiers for closed-loop lumen maintenance, while two 8-bit DACs provide smooth analog dimming alongside PWM. NanoWatt XLP keeps standby consumption below 1 uA for always-on lighting controllers, meeting ENERGY STAR standby requirements. The 44-QFN footprint allows compact driver PCBs fitting inside bulb housings. PIC16LF1718-I/ML is a pin-compatible alternative tailored specifically for LED lighting with dedicated op-amp channels.
推荐
Portable Medical Monitoring
The 1.8V-3.6V operating range and nanoWatt XLP make PIC16LF1784-I/ML ideal for battery-powered medical wearables such as pulse oximeters, glucometers, and patient thermometers. The 12-bit differential ADC with computation (ADC2) supports oversampling and averaging for high-accuracy biosensor signal chains, while two 8-bit DACs and three op-amps condition analog front-end signals. CIPs (CLC, NCO, PWM) handle sensor excitation and tone generation without CPU wake-up, extending battery life to months. EUSART with LIN support enables connectivity to host processors or BLE modules. The 44-QFN (ML) package fits inside small wearable enclosures.
推荐
Industrial Process Sensor Transmitter
Industrial 4-20 mA loop-powered transmitters benefit from the PIC16LF1784-I/ML's 1.8V minimum Vdd, allowing operation directly from low-voltage loop drops without external boost stages. The 12-bit differential ADC with hardware averaging reads bridge pressure, RTD, or thermocouple sensors accurately, while three on-chip op-amps build complete signal-conditioning front-ends. The EUSART supports RS-485 or HART modem interfaces for fieldbus connectivity. NanoWatt XLP sleep modes minimize loop current consumption to stay within the 3.5 mA HART minimum budget. The 44-QFN package provides 36 I/O for HART modem chip-select, display drivers, and diagnostics LEDs.
推荐
IoT Smart Home Sensor Hub
The PIC16LF1784-I/ML serves as a low-cost edge node in smart home systems, aggregating multiple sensors (temperature, humidity, motion, light) and forwarding data via I2C/SPI to a host BLE/Wi-Fi module. The 12-bit ADC reads analog sensors directly, while three op-amps interface with 4-20 mA or 0-10V industrial-style sensors. Core Independent Peripherals (CIPs) wake the CPU only when thresholds are exceeded, achieving years of battery life on 2x AA cells. The 44-QFN footprint supports compact PCB integration inside wall switches, door sensors, and HVAC controllers. Cross-brand alternatives exist but require peripheral-by-peripheral validation.
推荐
Automotive Auxiliary Body Controller
Although not AEC-Q100 qualified, the PIC16LF1784-I/ML's wide voltage tolerance and PSMC channels suit non-safety automotive body applications such as interior LED lighting, HVAC flaps, and seat-position memory when paired with external transients protection. Three PSMC channels drive small BLDC or DC motors with dead-band control, while the 12-bit ADC reads position feedback from potentiometers or Hall sensors. The 44-QFN package is footprint-compatible with PIC16LF1783-I/ML and PIC16LF1782-I/ML for cost-tiers within a single PCB layout. For safety-critical functions, use AEC-Q100-qualified PIC16F families instead.
推荐
推荐产品汇总
工程参考数据： PIC16LF1784-I/ML ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16LF1783-I/ML | PIC16LF1782-I/ML | PIC16LF1769-I/ML | PIC16LF1768-I/ML | PIC16LF1718-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-44 (ML) | QFN-44 (ML) - same | QFN-44 (ML) - same | QFN-44 (ML) - same | QFN-44 (ML) - same | QFN-44 (ML) - same |
| Flash Memory | 7 KB | 7 KB | 5 KB | 8 KB | 14 KB | 7 KB |
| PSMC Channels | 3 | 2 | 2 | 0 (no PSMC) | 0 (no PSMC) | 0 (no PSMC) |
| On-chip Op-amps | 3 | 3 | 2 | 4 | 4 | 3 |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 10-bit | 10-bit | 10-bit |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
关键差异点
- Three PSMC channels with 16 ns edge resolution （对比 PIC16LF1718-I/ML)
- 12-bit differential ADC2 with computation （对比 PIC16LF1769-I/ML)
- On-chip op-amps integrated for analog feedback （对比 PIC16LF1768-I/ML)
设计说明
Place a 1 uF to 10 uF decoupling capacitor as close as possible to each Vdd/Vss pair on the 44-QFN package, plus a 0.1 uF ceramic in parallel for high-frequency noise. The PIC16LF1784-I/ML has multiple Vdd/Vss pins (pin 9, 10, 41, 42); bypass each independently. The Vcap pin (43) requires its own 0.1 uF capacitor for internal core voltage regulation - never leave this pin floating.
Solder the exposed pad (EP, pin 44) to a continuous ground copper pour for thermal dissipation. The QFN-44 thermal resistance theta_JA is approximately 30 C/W on a standard 4-layer JEDEC test board, allowing up to 3W dissipation at 70C ambient. For applications pushing 32 MHz at 3.6V with all peripherals active, allocate at least 100 mm^2 of top-layer copper to keep junction temperature below 125C.
Reserve RB6 (pin 17) and RB7 (pin 18) for ICSP programming/ICD debugging - do not remap them to peripheral outputs. For PSMC-based SMPS designs, keep switching traces short (under 25 mm) and route analog feedback traces away from PWM edges by at least 3 mm. Use a ground plane stitch via every 5 mm along noisy traces; this reduces radiated emissions that could disturb the 12-bit ADC readings.
Avoid reading ADC channels immediately after enabling them - allow at least 10 us acquisition time for the internal sample-and-hold capacitor to settle. When using the PSMC's dead-band control, ensure dead-time is greater than the FET turn-off delay (typically 50-200 ns) to prevent shoot-through. Do not configure I/O pins as analog inputs while driving digital outputs - this can cause contention and latch-up in worst cases.
When using the 12-bit ADC for high-accuracy measurements (better than 0.5 LSB), oversample and average by 16x or 64x using the ADC2 computation feature, which filters 50/60 Hz line noise digitally. Add an external anti-aliasing RC filter (1 kohm + 100 pF = 16 kHz cutoff) in front of analog inputs above 1 kHz signal content. The internal bandgap reference should be measured against Vdd and temperature-compensated in firmware for absolute accuracy.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications use AEC-Q100-qualified PIC16F1784 variants or dsPIC33 families. Lead-free and halogen-free packaging per Microchip environmental compliance data.
