PIC16LF1579-E/GZ - 8-Bit MCU 14KB Flash 32MHz 20-UQFN | Microchip
料号： PIC16LF1579-E/GZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.96 | $1.96 |
| 10 | $1.75 | $17.50 |
| 100 | $1.49 | $149.00 |
| 500 | $1.31 | $655.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16LF1579-E/GZ 概述
What is an 8-bit PIC microcontroller? An 8-bit PIC MCU is a RISC-based embedded controller from Microchip Technology that executes one byte (8 bits) per instruction cycle and uses a Harvard architecture with separate program and data buses. The PIC16F157x family sits in the middle of Microchip's 8-bit portfolio, between the baseline PIC10/12/16 families and the higher-end PIC18 family, and is optimised for cost-sensitive designs that still require sophisticated PWM and analog peripherals.
Key differentiating features of the PIC16LF1579 include four independent 16-bit PWMs (vs. the 10-bit PWM found on many PIC16 baselines), a 10-bit ADC with up to 12 channels, a 5-bit DAC, two comparators with selectable reference, a Complementary Waveform Generator (CWG) for half-bridge/full-bridge driver control, a Peripheral Pin Select (PPS) module for flexible I/O mapping, and an EUSART for asynchronous/synchronous serial communication. The device operates across 1.8 V to 3.6 V and is qualified for the extended -40 C to +125 C industrial temperature range.
The PIC16LF1579 architecture uses a single-cycle ALU with 49 instructions and a 14-bit instruction word for the 14 KB Flash program memory, providing 8,192 14-bit words of code space. The device includes a configurable internal oscillator (up to 32 MHz via 4x PLL from an 8 MHz HFINTOSC source), reducing external component count, and supports in-circuit serial programming (ICSP) via the ICSPCLK/ICSPDAT pins for field firmware updates.
Typical applications include LED drivers and dimming controllers (using the 16-bit PWM), brushless DC (BLDC) fan and pump motor controllers (PWM + CWG + comparator), battery chargers (ADC + PWM), small appliance controls, sensor signal conditioning (op-amp + DAC + ADC), and general-purpose consumer/industrial embedded logic. The combination of 16-bit PWM resolution and on-chip analog makes the part particularly attractive for lighting fade/blending applications and switched-mode power supplies.
When designing with the PIC16LF1579-E/GZ, note that the LF (low-power F) variant supports 1.8 V minimum VDD versus 2.3 V on the standard F variant. Place the bulk decoupling capacitor (typically 1 uF-10 uF) as close as possible to the VDD pin, and follow the datasheet's recommended PCB layout for the exposed pad of the UQFN-20 package. The PPS module allows remapping of most digital peripherals to any digital I/O pin, but the I/O voltage tolerance does not exceed VDD, so peripherals operating at 5 V require level shifting.
This page synthesises distributor pricing snapshots, drop-in PIC16 same-family alternatives, and practical design notes (PWM duty cycle, ADC sampling, PPS pin selection) not found in the manufacturer datasheet alone.
直接替换替代料： PIC16LF1579-E/GZ ——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： PIC16LF1579-E/GZ （相同外形与封装尺寸） ——差异在于 Operating Temperature, ADC, Package, Comparators, Core.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1579-I/GZ
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F1579-E/GZ
✅ 直接替换✓ 有现货
$1.78 / 个
查看数据手册 →PIC16LF1578-E/GZ
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF15344T-I/GZ
✅ 直接替换✓ 有现货
$0.78 / 个
查看数据手册 →PIC16LF1579-E/GZ 最大额定值与电气特性
| Family | PIC16 (PIC16LF157x series) |
| Core | 8-bit PIC RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Max CPU Speed | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| 工作温度 | -40 C to +125 C (E suffix, industrial extended) |
| 封装 | 20-pin UQFN (4x4 mm) with exposed pad |
| 安装类型 | Surface Mount |
| ADC | 10-bit, up to 12 channels |
| DAC | 5-bit, 1 channel |
| PWM | 4 x 16-bit with independent timers |
| Comparators | 2 with selectable voltage reference |
| CWG (Complementary Waveform Generator) | 1 (half/full-bridge) |
| PPS (Peripheral Pin Select) | Yes |
| EUSART | 1 |
| MSL 等级 | MSL3 (per UQFN package) |
| RoHS 状态 | Compliant (GZ suffix indicates lead-free) |
| Programming | ICSP (In-Circuit Serial Programming) |
PIC16LF1579-E/GZ 20-pin uqfn (4x4 mm) with exposed pad 引脚配置指南
PIC16LF1579-E/GZ（20-pin uqfn (4x4 mm) with exposed pad 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC16LF1579-E/GZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC16LF1579-E/GZ 适用于 7 应用s: LED Lighting Driver and Dimmer, Brushless DC (BLDC) Fan and Pump Motor Control, Battery Charger and Power Management, Sensor Signal Conditioning and IoT Edge Nodes, Small Appliance Control (Coffee Makers, Blenders, Toasters), Switched-Mode Power Supply (SMPS) Digital Control, Automotive Interior Lighting and RGB Ambient.
LED Lighting Driver and Dimmer
The PIC16LF1579-E/GZ is ideal for LED lighting controllers because it integrates four independent 16-bit PWM channels - rare for an 8-bit MCU at this price. According to the Microchip PIC16F1579 datasheet, the 16-bit PWM delivers a minimum step size of 14.3 ns at 32 MHz, enabling smooth logarithmic dimming curves and color mixing without external LED driver ICs. Place the MCU between the 3.3 V rail and the MOSFET gate drivers, with current sensing routed to the on-chip 10-bit ADC. The CWG module generates anti-phase signals for synchronous buck LED drivers, eliminating external half-bridge logic.
推荐
Brushless DC (BLDC) Fan and Pump Motor Control
For small BLDC fan and pump controllers, the PIC16LF1579-E/GZ pairs four 16-bit PWMs with the CWG (Complementary Waveform Generator) and two comparators. According to the PIC16F1579 datasheet, the CWG outputs complementary PWM signals with programmable dead time for half-bridge MOSFET driving, while the comparators handle back-EMF zero-cross detection. The on-chip 10-bit ADC reads the potentiometer/sensor input for closed-loop speed control. The LF family's 1.8 V minimum VDD allows direct 2-cell AA battery operation for portable fan designs.
推荐
Battery Charger and Power Management
The PIC16LF1579-E/GZ is well suited for Li-ion and NiMH battery chargers where it combines 16-bit PWM for constant-current/constant-voltage (CC/CV) control, a 10-bit ADC for voltage and current sensing, and a 5-bit DAC for adaptive charge termination. According to the Microchip PIC16F1579 datasheet, the LF family's 1.8 V VDD minimum simplifies designs powered directly from a 1S Li-ion cell, while the 32 MHz HFINTOSC eliminates external crystals for cost-sensitive charger designs. Use the EUSART for SMBus/I2C-like host communication or status UART output.
推荐
Sensor Signal Conditioning and IoT Edge Nodes
For sensor signal conditioning front-ends in IoT edge nodes, the PIC16LF1579-E/GZ combines a 10-bit ADC, a 5-bit DAC for sensor bias generation, two comparators with selectable voltage reference, and the PPS module for flexible I/O mapping. The LF family's 1.8 V VDD enables battery-powered sensor hubs that sleep most of the time and wake on comparator interrupt. The EUSART interfaces to Bluetooth/Wi-Fi modules or RS-485 transceivers. Compared with discrete op-amp signal chains, the integrated analog front-end reduces BOM cost and PCB area for low-density sensor nodes.
推荐
Small Appliance Control (Coffee Makers, Blenders, Toasters)
In small kitchen and home appliances, the PIC16LF1579-E/GZ controls motor speed (16-bit PWM), temperature regulation (10-bit ADC with thermistor input), timer functions, and user-interface buttons. The extended -40 C to +125 C temperature range (E grade) handles under-hood appliance environments. The 20-UQFN package provides a compact 4x4 mm footprint for space-constrained control boards, while the PPS module routes the rotary encoder, LEDs, buzzer, and relay outputs to any available I/O pin.
推荐
Switched-Mode Power Supply (SMPS) Digital Control
For digital control of low-power SMPS topologies, the PIC16LF1579-E/GZ provides the 16-bit PWM resolution needed for high-frequency digital power conversion, the 10-bit ADC for output voltage/current feedback, and the CWG for synchronous rectifier timing. According to the PIC16F1579 datasheet, the high-speed 10-bit ADC (up to ~100 ksps at 10 bits) samples the feedback loop fast enough for 50-100 kHz SMPS loops. The LF variant handles 3.3 V digital rails, while the F variant supports 5 V logic for legacy analog power stages.
推荐
Automotive Interior Lighting and RGB Ambient
For automotive interior ambient lighting and RGB LED controllers, the PIC16LF1579-E/GZ provides four 16-bit PWMs sufficient for RGBW (red/green/blue/white) channel control with smooth cross-fade animations. The -40 C to +125 C extended temperature grade (E suffix) meets automotive cabin environment requirements. The EUSART interfaces to CAN/LIN transceivers for body-network integration, and the PPS module simplifies PCB routing when the connector pinout forces specific I/O assignments. The 20-UQFN (4x4 mm) package fits behind dashboard trim.
推荐
推荐产品汇总
工程参考数据： PIC16LF1579-E/GZ ——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 | PIC16LF1579-I/GZ | PIC16F1579-E/GZ | PIC16LF1578-E/GZ | PIC16LF15344T-I/GZ | PIC16LF1509-I/SS | PIC16LF1575-E/SL | PIC16LF1574-E/JQ |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin UQFN (4x4 mm) | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin UQFN (4x4 mm) - same | 20-pin SSOP - cross-package | 14-pin SOIC - cross-package | 16-pin UQFN - cross-package |
| Program Memory (Flash) | 14 KB (8K x 14) | 14 KB | 14 KB | 7 KB | 7 KB | 14 KB | 7 KB | 7 KB |
| RAM | 1 KB | 1 KB | 1 KB | 512 B | 512 B | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 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 | 1.8 V to 3.6 V |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) |
关键差异点
- Four independent 16-bit PWMs versus typical 10-bit PWMs on comparable 8-bit MCUs （对比 PIC16LF1509-I/SS)
- Complementary Waveform Generator (CWG) integrated for half/full-bridge driver control （对比 PIC16LF1575-E/SL)
- Peripheral Pin Select (PPS) module for flexible I/O mapping （对比 PIC16LF1574-E/JQ)
- LF variant supports 1.8 V minimum VDD versus 2.3 V on F variant （对比 PIC16F1579-E/GZ)
设计说明
Place a 1 uF to 10 uF bulk decoupling capacitor as close as possible to the VDD pin of the PIC16LF1579-E/GZ, with a 100 nF ceramic bypass cap in parallel for high-frequency noise. The LF family's 1.8 V minimum VDD allows direct 2-cell AA battery operation (typical 3.0 V), but voltage drops below 1.8 V during high TX/RX bursts on the EUSART can cause brown-out resets - enable the BOR module via configuration bits and set BORV to the 1.8 V threshold.
The 20-UQFN (4x4 mm) package of the PIC16LF1579-E/GZ has an exposed thermal pad that MUST be soldered to a PCB copper pad of at least 10 mm x 10 mm for reliable thermal performance. While the LF family has low quiescent current (typical <100 nA in sleep), continuous 32 MHz operation at 3.3 V draws about 5 mA, generating ~16 mW. The exposed pad provides the primary heat dissipation path and also serves as the electrical ground - missing solder connection causes overheating and unreliable operation.
When designing the 20-UQFN land pattern, follow Microchip AN2044 (UQFN PCB Design Guidelines) for pad dimensions and stencil aperture. Use a 0.13 mm-0.15 mm stencil thickness for the QFN thermal pad, with multiple smaller apertures (window-pane pattern) rather than one large aperture, to prevent solder voiding. Pin pitch is 0.4 mm - any solder bridge between adjacent pins causes a permanent short, so post-reflow X-ray inspection is recommended for low-volume prototypes.
A common mistake when migrating from the PIC16F1509 to the PIC16LF1579 is forgetting to enable the PPS module unlock sequence (PPSLOCK bit) before remapping digital peripherals to non-default pins. Without unlocking, PPS register writes are silently ignored. Another pitfall: the four 16-bit PWMs share the 32 MHz system clock, so configuring the PLL on the HFINTOSC while also driving the PWM at the maximum 32 kHz PWM frequency requires careful timing analysis - use the Microchip PIC16F1579 datasheet PWM timing diagrams in Section 23.
The EUSART on the PIC16LF1579-E/GZ supports both asynchronous (RS-232/RS-485) and synchronous (SPI-like) modes at up to 5 Mbps in high-speed mode. For RS-485 half-duplex networks, drive the transceiver DE/RE pin from a PPS-remappable digital I/O and add 5-10 ms turn-around delay to avoid bus contention. The 3.3 V CMOS logic levels are not directly 5 V tolerant - if interfacing to a 5 V host UART, use a level translator such as the SN74LVC1T45 or a simple resistor divider on the RX line.
合规信息
RoHS compliant per GZ suffix (lead-free UQFN package). Not AEC-Q100 qualified - choose PIC16F1579-E/GZ or PIC16LF1579-E/GZ extended-grade variants carefully for non-automotive applications. PIC16LF1579-E/GZ is industrial-grade (E = -40 C to +125 C).
