PIC16LF1578-E/P - 8-bit MCU, 7KB Flash, 32MHz, 20-PDIP | Microchip
料号： PIC16LF1578-E/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.82 | $1.82 |
| 10 | $1.64 | $16.40 |
| 100 | $1.45 | $145.00 |
| 500 | $1.28 | $640.00 |
| 1,000 | $1.12 | $1,120.00 |
PIC16LF1578-E/P 概述
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and a Harvard or modified-Harvard architecture. Within the broader taxonomy, PIC16LF1578 belongs to the PIC16F family -> 8-bit PIC microcontrollers -> microcontrollers (MCU) -> embedded controllers -> integrated circuits (ICs). The 'LF' suffix denotes the low-voltage and low-power variant, while '1578' identifies its position in the PIC16(L)F157x family known for its 16-bit PWMs and analog peripherals.
Key features include four 16-bit PWMs with independent timers, a 10-bit ADC, and configurable logic cells (CLC). These peripherals enable high-resolution LED lighting, motor control, and signal generation. The 'E' suffix indicates the extended operating temperature range of -40°C to +125°C, suitable for industrial environments. The 20-PDIP package simplifies prototyping and breadboarding, and is the most user-friendly pin-compatible option to revisit during interface development.
The PIC16LF1578 uses Microchip's enhanced mid-range core with a 14-bit instruction set, 8-level hardware stack, and 31 interrupt sources. It includes two comparators, a 5-bit DAC, and a numerically controlled oscillator (NCO) for precision frequency generation. With its peripheral module disable (PMD) feature, unused peripherals can be turned off to reduce dynamic current consumption.
Typical applications include LED lighting and color-mixing controls, DC-DC converter control loops, sensor interfacing in IoT endpoints, and battery-powered consumer devices. The wide operating voltage allows direct connection to a single-cell lithium or two-cell alkaline supply, simplifying power tree design.
When designing with this MCU, ensure the ICSP programming pins (RBGPVDATA, RB6/ICSPCLK) are accessible on the PCB layout for in-circuit programming. The wide analog and digital peripheral selection means careful attention to pin allocation is essential to avoid conflicts. The device's nanoWatt technology also supports sleep current as low as a few nanoamperes, depending on configuration.
This page synthesizes distributor pricing, same-package Microchip drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16LF1578-E/P ——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： PIC16LF1578-E/P （相同外形与封装尺寸） ——差异在于 Package, ADC, Mounting Type, Core Architecture, Operating Voltage Range.
快速对比工具——选择替代料号进行并排对比：
PIC16F1578-E/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1579-E/P
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.22 / 个
查看数据手册 →PIC16LF1574-E/P
✅ 直接替换✓ 有现货
$1.24 / 个
查看数据手册 →PIC16LF1575-E/SL
✅ 直接替换✓ 有现货
$0.85 / 个
查看数据手册 →PIC16LF1578-I/P
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.14 / 个
查看数据手册 →PIC16LF1578-E/P 最大额定值与电气特性
| Core | PIC16 8-bit Enhanced Mid-Range |
| Program Memory Size | 7 KB (4K x 14) |
| Program Memory Type | FLASH |
| RAM Size | 256 bytes |
| EEPROM Size | 128 bytes |
| CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of I/O | 17 |
| ADC | 10-bit, 8 channels |
| PWM | 4 x 16-bit |
| Comparators | 2 |
| 封装 | 20-PDIP (0.300", 7.62mm) |
| 工作温度范围 | -40 C to +125 C |
| 安装类型 | Through-Hole |
| RoHS 状态 | Compliant |
PIC16LF1578-E/P 引脚配置
| 引脚 1 | RA3/AN3/Vref+/C12IN3+ — Port A bit 3 / Analog input 3 / Positive voltage reference / Comparator input |
| 引脚 2 | RA4/AN4/CPS4/T0CKI — Port A bit 4 / Analog input 4 / Capacitive touch sense 4 / Timer0 clock input |
| 引脚 3 | RA5/MCLR/Vpp — Port A bit 5 / Master Clear (reset) / Programming voltage |
| 引脚 4 | RA6 — Port A bit 6 (no alternate function) |
| 引脚 5 | RA7 — Port A bit 7 (no alternate function) |
| 引脚 6 | VSS — Ground reference |
| 引脚 7 | VDD — Positive supply voltage |
| 引脚 8 | RB4/AN10/CPS6/PWM4 — Port B bit 4 / Analog input 10 / Cap touch 6 / PWM4 output |
| 引脚 9 | RB5/AN11/PWM3 — Port B bit 5 / Analog input 11 / PWM3 output |
| 引脚 10 | RB6/ICSPCLK/PWM2 — Port B bit 6 / ICSP clock / PWM2 output |
| 引脚 11 | RB7/ICSPDAT/PWM1 — Port B bit 7 / ICSP data / PWM1 output |
| 引脚 12 | RC0/SOSC1/SCLKI — Port C bit 0 / Secondary oscillator 1 / Secondary clock input |
| 引脚 13 | RC1/SOSC2 — Port C bit 1 / Secondary oscillator 2 |
| 引脚 14 | RC2/AN6/CPS8 — Port C bit 2 / Analog input 6 / Cap touch 8 |
| 引脚 15 | RC3/AN7/CPS9 — Port C bit 3 / Analog input 7 / Cap touch 9 |
| 引脚 16 | RC4/AN8/CPS10 — Port C bit 4 / Analog input 8 / Cap touch 10 |
| 引脚 17 | RC5/AN9/CPS11 — Port C bit 5 / Analog input 9 / Cap touch 11 |
| 引脚 18 | RC6/AN12/CPS12 — Port C bit 6 / Analog input 12 / Cap touch 12 |
| 引脚 19 | RC7/AN13/CPS13 — Port C bit 7 / Analog input 13 / Cap touch 13 |
| 引脚 20 | RA0/AN0/CPS0/CLCIN0 — Port A bit 0 / Analog input 0 / Cap touch 0 / CLC input 0 |
典型应用
PIC16LF1578-E/P 适用于 6 应用s: LED Lighting and Color-Mixing Control, Battery-Powered IoT Sensor Nodes, DC-DC Converter Control Loops, Industrial Motor Control, Precision Signal Generation with NCO, Consumer Electronics and Appliance Control.
LED Lighting and Color-Mixing Control
The PIC16LF1578-E/P's four independent 16-bit PWM channels provide the resolution needed for smooth LED dimming and RGB color-mixing applications. Per the PIC16(L)F1578 datasheet, the 16-bit PWM is significantly higher than typical 8-bit or 10-bit PWMs in competing PIC16F devices, allowing 65536 steps of brightness control. The 1.8V-3.6V operating range enables direct connection to single-cell lithium-ion or 2x alkaline battery stacks typical in portable LED fixtures. Used with constant-current LED drivers, it generates PWM dimming signals while its 10-bit ADC monitors supply voltage and LED current for closed-loop control. The 32MHz clock provides sufficient bandwidth for flicker-free operation above 100Hz refresh rates.
推荐
Battery-Powered IoT Sensor Nodes
The PIC16LF1578-E/P's 1.8V-3.6V range and nanoWatt sleep modes make it suitable for battery-powered IoT sensor endpoints. Per Microchip documentation, sleep currents in the nanoampere range extend battery life to multi-year durations on coin-cell or 2x AA batteries. The 10-bit ADC with 8 channels interfaces directly with analog sensors (temperature, light, gas), while its 7KB Flash accommodates sensor-fusion algorithms and wireless protocol stacks like LoRaWAN or Zigbee MAC layers. The CLC (Configurable Logic Cell) implements hardware-level sensor signal conditioning without CPU intervention, further reducing active current.
推荐
DC-DC Converter Control Loops
The PIC16LF1578-E/P's high-resolution 16-bit PWM and 32MHz clock speed support digital control of switch-mode power supplies (SMPS). Per the PIC16(L)F1578 datasheet, the configurable logic cells (CLC) and 5-bit DAC simplify peak-current-mode control and slope compensation circuits. The 10-bit ADC samples feedback signals at adequate rates for voltage-mode and current-mode control loops operating in the 100kHz-1MHz range. The 1.8V-3.6V range suits single-cell Li-ion powered converters, and the extended -40C to +125C temperature range supports industrial SMPS applications.
推荐
Industrial Motor Control
The PIC16LF1578-E/P's four 16-bit PWMs generate the complementary or independent PWM signals required for BLDC, stepper, and brushed DC motor control. Per Microchip documentation, the PWMs support center-aligned and edge-aligned modes with programmable dead-band control, critical for half-bridge driver stages. The 32MHz clock and dedicated timers support field-oriented control (FOC) algorithms for sensorless BLDC operation. The extended -40C to +125C temperature range and robust 20-PDIP package suit industrial motor drives in factory automation environments.
推荐
Precision Signal Generation with NCO
The PIC16LF1578-E/P's Numerically Controlled Oscillator (NCO) generates precision frequency outputs up to the MHz range with 20-bit accumulator resolution. Per the PIC16(L)F1578 datasheet, the NCO is useful for generating sinusoidal or arbitrary waveforms via PWM-filter combinations, frequency-shift-keying (FSK) for low-cost RF links, and clock substitution in legacy designs. Combined with the 16-bit PWM and configurable logic cells, the device synthesizes complex waveforms without CPU overhead, freeing the core for protocol handling or user-interface tasks.
推荐
Consumer Electronics and Appliance Control
The PIC16LF1578-E/P's combination of low power, multiple peripherals, and 20-PDIP package makes it useful for consumer appliance controllers such as coffee machines, washing machine displays, and smart thermostats. Per the PIC16(L)F1578 datasheet, the 7KB Flash accommodates user-interface state machines, while the 16-bit PWMs drive LCD bias voltages or LED indicators. The 1.8V-3.6V operating range suits battery-backed appliance designs, and the nanoWatt modes keep standby power consumption within Energy Star limits. The through-hole 20-PDIP package simplifies manufacturing and field-service replacements.
推荐
推荐产品汇总
工程参考数据： PIC16LF1578-E/P ——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 | PIC16F1578-E/P | PIC16LF1579-E/P | PIC16LF1574-E/P | PIC16LF1578-I/P |
|---|---|---|---|---|---|
| Package | 20-PDIP (0.300") | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB (4K x 14) Flash | 7 KB Flash | 14 KB Flash (2x) | 7 KB Flash (same family) | 7 KB Flash |
| Operating Voltage | 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 |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| PWM Channels | 4 x 16-bit | 4 x 16-bit | 4 x 16-bit | 3 x 16-bit | 4 x 16-bit |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C (Industrial) |
关键差异点
- Higher PWM resolution than typical PIC16F devices （对比 PIC16F1507)
- Wider low-voltage operating range than PIC16F variants （对比 PIC16F1578)
- Extended temperature range for industrial environments （对比 PIC16LF1578-I/P)
设计说明
The PIC16LF1578-E/P operates from 1.8V to 3.6V and supports nanoWatt technology for ultra-low sleep currents. Decouple VDD with a 100nF ceramic capacitor as close to the VDD pin as possible, plus a bulk capacitor of at least 1uF. Avoid long PCB traces between VDD and the decoupling capacitor to minimize switching transients. For battery operation, the nanoWatt sleep mode can reduce quiescent current to nanoampere levels when properly configured per the PIC16(L)F1578 datasheet.
Place the 20-PDIP part with its notch correctly oriented to match the pinout in the datasheet. Pin 1 is identified by the notch or dot marking on the package. For prototype-friendly designs, reserve space for an ICSP header (RB0/PROG-DAT, RB0/RBPGC) so firmware updates can be performed without removing the MCU. Keep analog traces (AN0-AN13) short and away from digital switching traces (PWM outputs) to minimize ADC noise coupling.
Do not exceed the absolute maximum ratings of VDD = 4.0V or ESD ratings. Always tie the MCLR pin to VDD through a 10kohm pull-up resistor to ensure proper reset behavior; floating MCLR can cause unreliable resets. Ensure the configuration bits (FOSC, WDTE, PWRTE, BOREN) are set correctly in the source code before programming to avoid brown-out reset misbehavior in the field. Per the PIC16(L)F1578 datasheet, the CLC peripheral must be configured to avoid unintended output toggling at startup.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16LF1578-E/P automotive equivalent for AEC-Q100 qualified variants. Lead-free and halogen-free packaging per Microchip documentation.
