PIC16F570-E/SP - 8-bit MCU, 3KB Flash, 24 I/O, 28-SPDIP | Microchip
MPN： PIC16F570-E/SP ✓ 啟用中PIC16F570-E/SP 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The PIC16F570 sits in the 8-bit MCU category, which is the simplest class of MCU and remains widely used for low-power, deterministic control tasks such as sensor interfacing, battery management, and motor control. Within that hierarchy, it is a flash-based, RISC-architecture part from the PIC16 family, aimed at cost-sensitive designs where integration of analog functions reduces BOM cost.
Key specifications include 24 digital I/O pins, 12-bit ADC channels, dual on-chip op-amps, dual comparators, 8 MHz internal oscillator, and a wide operating voltage range typical of PIC16F parts. The instruction set uses 14-bit wide opcodes with single-cycle execution at 20 MHz, providing 200 ns instruction time. With 64 bytes of RAM and 256 bytes of EEPROM, the PIC16F570 suits small state machines, sensor conditioning, and simple closed-loop control tasks.
The PIC16F570 employs Microchip's enhanced PIC16 mid-range core, providing deterministic interrupt latency and a Harvard bus architecture. The integrated analog blocks allow direct interface with sensors (e.g., thermistors, photodiodes) without external op-amps, while the dual comparators support window detection and zero-crossing circuits. The internal 8 MHz oscillator reduces external component count, though an external crystal can be added for timing-critical applications.
Typical applications include sensor signal conditioning, battery chargers, LED drivers, consumer appliances, and industrial control modules where integrated analog reduces board area. The PIC16F570-E variant supports the extended temperature range, making it suitable for industrial and outdoor environments. Designers benefit from Microchip's MPLAB X IDE and free development tools, including XC8 compiler and PICkit programmer support.
When designing with this MCU, allocate careful pin planning because the dual op-amp and comparator pins are multiplexed with digital I/O; ensure the analog functions you need are available on the desired pins. Decouple VDD with a 100 nF ceramic capacitor close to the package and follow Microchip's SPDIP PCB layout guidelines to minimize noise coupling into the analog blocks. Use the internal 8 MHz oscillator unless timing precision is required.
This page synthesizes distributor stock and pricing as of 2026-09-21, drop-in pin-compatible alternatives in the same 28-SPDIP footprint, and practical design notes covering analog pin allocation, decoupling, and oscillator selection that go beyond the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16F570-E/SP — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F570-E/SP （相同外形與佔位） — 差異在於 ADC, Package, I/O Pins, Operating Temperature, Mounting Type.
PIC16F570-I/SP
✅ 直接替換聯絡詢價
查看資料表 →PIC16F570-E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F570-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F570T-E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F570-E/SP 最大額定值與電氣特性
| Manufacturer | Microchip Technology |
| Series | PIC 16F |
| Core | PIC16 (8-bit RISC) |
| Core Size | 8-bit |
| Maximum Clock Speed | 20 MHz |
| Program Memory Size | 3 KB (2K x 12) FLASH |
| RAM Size | 64 bytes |
| EEPROM Size | 256 bytes |
| I/O Pins | 24 |
| 封裝 | 28-SPDIP (Skinny Plastic DIP) |
| 安裝類型 | Through-Hole |
| Internal Oscillator | 8 MHz |
| ADC | Yes (12-bit) |
| On-Chip Op-Amps | 2 |
| On-Chip Comparators | 2 |
| 工作溫度範圍 | -40C to +125C (Extended, -E suffix) |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Instruction Set | 14-bit opcode, 200 ns instruction cycle at 20 MHz |
| RoHS 狀態 | Compliant |
| MSL 等級 | 1 (Not Moisture Sensitive) |
PIC16F570-E/SP 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active low |
| 腳位 2 | RA0/AN0 — GPIO RA0 / ADC input AN0 |
| 腳位 3 | RA1/AN1 — GPIO RA1 / ADC input AN1 |
| 腳位 4 | RA2/AN2 — GPIO RA2 / ADC input AN2 |
| 腳位 5 | RA3/AN3 — GPIO RA3 / ADC input AN3 |
| 腳位 6 | RA4/AN4 — GPIO RA4 / ADC input AN4 |
| 腳位 7 | VDD — Positive supply voltage |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | OSC1/CLKIN — External oscillator input or crystal connection |
| 腳位 10 | OSC2/CLKOUT — External oscillator output or crystal connection |
| 腳位 11 | RC0 — GPIO RC0 |
| 腳位 12 | RC1 — GPIO RC1 |
| 腳位 13 | RC2 — GPIO RC2 |
| 腳位 14 | RC3 — GPIO RC3 |
| 腳位 15 | RC4 — GPIO RC4 |
| 腳位 16 | RC5 — GPIO RC5 |
| 腳位 17 | RC6 — GPIO RC6 |
| 腳位 18 | RC7 — GPIO RC7 |
| 腳位 19 | RB0 — GPIO RB0 |
| 腳位 20 | RB1 — GPIO RB1 |
| 腳位 21 | RB2 — GPIO RB2 |
| 腳位 22 | RB3 — GPIO RB3 |
| 腳位 23 | RB4 — GPIO RB4 |
| 腳位 24 | RB5 — GPIO RB5 |
| 腳位 25 | RB6 — GPIO RB6 |
| 腳位 26 | RB7 — GPIO RB7 |
| 腳位 27 | VSS — Ground reference (secondary) |
| 腳位 28 | VDD — Positive supply voltage (secondary) |
典型應用
PIC16F570-E/SP 適用於 6 應用s: Sensor Signal Conditioning, Battery Charger Control, LED Lighting Drivers, Consumer Appliance Control, Industrial Control Modules, Automotive Body Electronics.
Sensor Signal Conditioning
The PIC16F570's dual integrated op-amps, dual comparators, and 12-bit ADC make it ideal for sensor signal conditioning circuits. The op-amps can directly buffer and amplify signals from thermistors, photodiodes, or strain gauges without external ICs, while the ADC digitizes the conditioned signal. With 64 bytes of RAM and 3KB flash, it can run simple linearization routines. The internal 8 MHz oscillator eliminates an external crystal in cost-sensitive designs.
推薦
Battery Charger Control
The PIC16F570 suits small battery charger controllers in portable and IoT devices. Its 24 I/O pins can drive LEDs for status indication, MOSFETs for charge switching, and monitor battery voltage via the on-chip ADC. The dual comparators support end-of-charge voltage detection. With supply voltage down to 2.0V, it can operate from a single Li-ion cell during discharge. MPLAB X and XC8 simplify firmware development.
推薦
LED Lighting Drivers
For LED drivers and lighting controllers, the PIC16F570's 24 I/O pins can drive multiple LED channels via PWM, while the ADC monitors current sense feedback for closed-loop brightness control. The integrated op-amps condition the sense signal directly. Operating voltage range of 2.0V to 5.5V covers battery and USB-powered luminaires. The Extended temperature grade supports outdoor and industrial luminaires.
推薦
Consumer Appliance Control
Small home appliances, kitchen devices, and personal care products benefit from the PIC16F570's small code footprint, integrated analog, and 24 I/O. The MCU can read user inputs via ADC, drive relays and TRIACs via GPIO, monitor temperature with the integrated analog chain, and run simple state machines in 3KB of flash. The Extended temperature variant supports appliances exposed to heat.
推薦
Industrial Control Modules
The PIC16F570-E/SP's extended temperature range and integrated analog make it suitable for industrial control modules, including simple PLCs, sensor transmitters, and process controllers. Its 24 I/O can interface with 4-20 mA loops via external conditioning, drive SSR outputs, and read multiple sensor inputs through the on-chip ADC and comparators. The 28-SPDIP through-hole package simplifies prototyping and field repair.
推薦
Automotive Body Electronics
In automotive body electronics (non-safety), the PIC16F570 can manage simple body functions such as lighting controllers, seat controllers, and accessory multiplexers. The Extended temperature range meets under-hood and cabin thermal requirements. The integrated op-amps and comparators handle sensor conditioning without external analog ICs, reducing BOM cost. Designers must verify AEC-Q100 status for specific automotive programs.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F570-E/SP — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F570-I/SP | PIC16F570-E/SO | PIC16F570-I/SO | PIC16F570T-E/SO |
|---|---|---|---|---|---|
| Package | 28-SPDIP (through-hole) | 28-SPDIP - same | 28-SOIC (surface-mount) | 28-SOIC (surface-mount) | 28-SOIC (tape and reel) |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Operating Temperature Range | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Program Memory | 3 KB FLASH | 3 KB FLASH | 3 KB FLASH | 3 KB FLASH | 3 KB FLASH |
| RAM Size | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| I/O Pins | 24 | 24 | 24 | 24 | 24 |
| On-Chip Op-Amps | 2 | 2 | 2 | 2 | 2 |
主要差異化特點
- Through-hole SPDIP package simplifies prototyping and field repair (對比PIC16F570-E/SO)
- Extended -40C to +125C temperature range supports harsh environments (對比PIC16F570-I/SP)
- Integrated dual op-amps eliminate external analog ICs (對比PIC16F1936 (similar mid-range MCU without on-chip op-amps))
設計說明
Pin planning is critical for PIC16F570 designs because the dual op-amp inputs/outputs, dual comparator inputs, and ADC channels are multiplexed onto the same pins as digital I/O. Decide which analog functions are needed before assigning pin functions in your schematic, and reserve ADC-capable pins for analog signals. Place analog input traces away from switching nodes (MOSFET gates, relay coils) to minimize coupled noise into the ADC.
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pins 7 and 28 (both VDD pins), and tie both VSS pins (8 and 27) to a low-impedance ground plane. For analog supply conditioning, add a small RC filter (10 ohm + 100 nF) on AVdd if used. Keep the total supply trace impedance under 0.5 ohm to avoid ADC reference drift during large digital switching events.
A common pitfall is forgetting that PIC16F570 has only 64 bytes of RAM, so large lookup tables or string buffers must live in program memory (const arrays) rather than RAM. Also, the MCLR pin must be tied high through a 10 kohm resistor for normal operation; leaving it floating causes unpredictable resets. Finally, the internal 8 MHz oscillator is factory calibrated to within 1% typically, but applications requiring precise UART baud rates should use an external crystal.
合規資訊
RoHS compliant per Microchip product page. Extended temperature grade (-40C to +125C) but not AEC-Q100 qualified; for AEC-Q100 qualified automotive programs use PIC16F1xxx or PIC16F1xx automotive-grade parts.
