PIC16LF1508-E/SS - 7KB Flash 20MHz XLP MCU 20-SSOP | Microchip
MPN： PIC16LF1508-E/SS ✓ 啟用中PIC16LF1508-E/SS 概覽
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals onto one silicon die. Within the broader taxonomy, the PIC16LF1508 belongs to the microcontrollers family, which itself is a sub-category of integrated circuits (ICs) used for embedded control. XLP (eXtreme Low Power) is Microchip's branding for MCUs optimized for battery-powered applications, featuring nanoWatt sleep currents down to tens of nanoamps. The 'LF' prefix indicates the wide-voltage 'F' process variant rated for 1.8 V to 3.6 V operation.
Key features include 20 MHz CPU speed, brown-out reset, power-on reset, PWM, I2C, SPI, and UART/USART connectivity, plus 10-bit ADC with 12 input channels. The device operates from 1.8 V to 3.6 V (LF variant), with low-power sleep current typically below 50 nA. Enhanced mid-range core supports 49 instructions and 16-level hardware stack.
The PIC16LF1508-E/SS uses an enhanced mid-range 8-bit RISC architecture with 14-bit instruction word, 49 base instructions, and a hardware multiplier. The CLC, NCO, and CWG peripherals enable sensor interface, signal generation, and motor control tasks without CPU intervention, freeing the core for application logic and reducing average power.
Typical applications include battery-powered IoT sensor nodes, low-power wireless remote controls, LED lighting controllers, consumer electronics user interfaces, and portable medical devices. The XLP technology makes it particularly suitable for energy-harvesting and multi-year battery-life products.
When designing with this MCU, ensure decoupling capacitors are placed close to VDD, follow Microchip's recommended ICSP programming connections, and use the MPLAB X IDE with XC8 compiler for development. Consider using the CLC and NCO peripherals to offload timing-critical tasks and reduce active CPU time.
This page synthesizes distributor pricing, drop-in alternative listings, application examples, and practical design notes that complement (rather than duplicate) the manufacturer datasheet, helping engineers evaluate the PIC16LF1508-E/SS for new designs.
直接替換替代品，適用於 PIC16LF1508-E/SS — 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： PIC16LF1508-E/SS （相同外形與佔位） — 差異在於 Operating Temperature, Package, ADC, Core Architecture, DAC.
PIC16LF1508-I/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1508T-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1508-E/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1508-E/P
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1507-I/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF1459-E/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF1508-E/SS 最大額定值與電氣特性
| Series | PIC XLP 16F |
| Core Processor | PIC16 |
| Core Size | 8-Bit |
| CPU Speed | 20 MHz |
| Program Memory Size | 7 KB (4K x 14) Flash |
| RAM Size | 256 B |
| Number of I/O | 18 |
| ADC Resolution | 10-bit, 12 channels |
| DAC | 5-bit, 1 channel |
| 供應電壓 | 1.8 V to 3.6 V |
| 工作溫度 | -40C to +125C |
| 封裝 | 20-SSOP (0.209 inch / 5.30 mm width) |
| 安裝類型 | Surface Mount |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, CLC, NCO, CWG |
| RoHS 狀態 | Compliant |
PIC16LF1508-E/SS 腳位配置
| 腳位 1 | RA3/AN3/VREF+/T1G — Bidirectional I/O, analog input 3, voltage reference plus, Timer1 gate |
| 腳位 2 | RA4/AN4/T1G — Bidirectional I/O, analog input 4, Timer1 gate |
| 腳位 3 | RA5/MCLR/VPP — Bidirectional I/O, Master Clear (reset), programming voltage |
| 腳位 4 | RA6/OSC2/CLKOUT — Bidirectional I/O, oscillator output, clock output |
| 腳位 5 | RA7/OSC1/CLKIN — Bidirectional I/O, oscillator input, clock input |
| 腳位 6 | VSS — Ground reference |
| 腳位 7 | RA0/AN0/ICSPDAT — Bidirectional I/O, analog input 0, ICSP data |
| 腳位 8 | RA1/AN1/ICSPCLK — Bidirectional I/O, analog input 1, ICSP clock |
| 腳位 9 | RA2/AN2/DACOUT — Bidirectional I/O, analog input 2, DAC output |
| 腳位 10 | RC0 — Bidirectional I/O port C bit 0 |
| 腳位 11 | RC1 — Bidirectional I/O port C bit 1 |
| 腳位 12 | RC2 — Bidirectional I/O port C bit 2 |
| 腳位 13 | RC3 — Bidirectional I/O port C bit 3 |
| 腳位 14 | RC4 — Bidirectional I/O port C bit 4 |
| 腳位 15 | RC5 — Bidirectional I/O port C bit 5 |
| 腳位 16 | RC6 — Bidirectional I/O port C bit 6 |
| 腳位 17 | RC7 — Bidirectional I/O port C bit 7 |
| 腳位 18 | RB4/AN10 — Bidirectional I/O port B bit 4, analog input 10 |
| 腳位 19 | RB5/AN11 — Bidirectional I/O port B bit 5, analog input 11 |
| 腳位 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
典型應用
PIC16LF1508-E/SS 適用於 6 應用s: Battery-Powered IoT Sensor Node, Low-Power Wireless Remote Control, LED Lighting Controller, Consumer Electronics User Interface, Portable Medical Device Monitoring, Industrial Sensor Interface Module.
Battery-Powered IoT Sensor Node
The PIC16LF1508-E/SS suits battery-powered IoT sensor nodes because its XLP nanoWatt technology delivers sleep currents below 50 nA while retaining RAM, allowing wake-on-interrupt cycles every few seconds for years on a single CR2032 cell. The 12-channel 10-bit ADC with internal voltage reference directly digitizes sensor outputs (temperature, light, motion) without external components. With 7 KB Flash, the device accommodates small Contiki-NG or application-specific sensor fusion code, and the I2C/SPI peripherals connect to common low-power sensors and radio modules like the RN2483 LoRa transceiver.
推薦
Low-Power Wireless Remote Control
For handheld remote controls (TV, garage door, industrial keyfob), the PIC16LF1508-E/SS provides a 20 MHz core capable of running RF protocol stacks while its XLP sleep mode extends battery life beyond 5 years on a single coin cell. The 18 I/O pins support matrix keypads up to 4x4, and the CWG/NCO peripherals generate precise carrier frequencies without CPU intervention. The wide 1.8-3.6 V supply range works directly from 2x alkaline or single Li-ion batteries without an LDO.
推薦
LED Lighting Controller
The PIC16LF1508-E/SS is well-matched to LED lighting controllers: the 5-bit DAC and 12-bit PWM peripherals generate dimming curves, color mixing, and soft-fade effects with minimal CPU overhead, while the CWG peripheral produces complementary drive signals for half-bridge LED driver topologies. The 12-channel 10-bit ADC reads ambient light sensors and potentiometer inputs for closed-loop dimming. The 1.8 V minimum supply enables direct operation from 2-cell NiMH battery packs in portable fixtures.
推薦
Consumer Electronics User Interface
In consumer appliances (coffee makers, air purifiers, fans), the PIC16LF1508-E/SS drives user interfaces with capacitive touch buttons via the CLC peripherals, controls displays over SPI or I2C, and runs motor control loops via PWM. The 20 MHz CPU executes user-interface state machines and basic safety logic, while 7 KB Flash accommodates graphical menu structures. The -40C to +125C extended operating range suits appliance environments near heating elements.
推薦
Portable Medical Device Monitoring
For portable medical monitors (pulse oximeters, thermometers, glucose meters), the PIC16LF1508-E/SS provides the precision ADC for biosensor signal acquisition, while the XLP sleep mode extends battery life for patient use. The 5-bit DAC generates bias voltages for sensor front-ends, and the UART enables wired data transfer to host devices. The 1.8 V minimum supply allows direct operation from single-cell alkaline or coin-cell batteries typical of handheld medical devices.
推薦
Industrial Sensor Interface Module
In industrial 4-20 mA loop-powered sensor transmitters, the PIC16LF1508-E/SS operates from as low as 1.8 V after the loop sense resistor, providing ADC conversion of bridge sensors, thermistors, or RTDs. The 256-byte SRAM buffers linearization tables, while 7 KB Flash holds calibration coefficients and ModBus RTU protocol stack. The -40C to +125C extended temperature range handles factory-floor environments, and the brown-out reset plus watchdog timer ensure reliable industrial operation.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF1508-E/SS — 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 | PIC16LF1508-I/SS | PIC16LF1508T-I/SS | PIC16F1508-E/SS | PIC16LF1508-E/P | PIC16LF1507-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-PDIP (through-hole) | 20-SSOP - same |
| Supply Voltage | 1.8 V to 3.6 V | 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 |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB |
| RAM | 256 B | 256 B | 256 B | 256 B | 256 B | 128 B |
| I/O Pins | 18 | 18 | 18 | 18 | 18 | 18 |
| ADC Channels | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +85C |
主要差異化特點
- Wide 1.8-3.6 V supply range with XLP nanoWatt sleep (對比PIC16F1508-E/SS)
- Extended -40C to +125C operating temperature range (對比PIC16LF1508-I/SS)
- On-chip CLC, NCO, and CWG peripherals (對比PIC16LF1507-I/SS)
設計說明
For battery-powered designs, use the PIC16LF1508-E/SS sleep mode with peripherals disabled. Per Microchip datasheet section 10, typical sleep current with WDT disabled is 30-50 nA. The on-chip brown-out reset is factory-trimmed; enable BOR in configuration bits for reliable operation across the 1.8-3.6 V range. A 100 nF decoupling capacitor close to VDD (pin 20) plus a 10 uF bulk capacitor is recommended for ADC accuracy.
Place the ICSP programming connector (MCLR/ICSPCLK/ICSPDAT) on the PCB edge or test-point area so that PICkit 4 or MPLAB Snap can be attached without removing the MCU. Keep analog traces (AN0-AN11, VREF+, DACOUT) short and away from switching nodes. Per Microchip layout guidelines, ground the thermal pad (pin 6 VSS) with a wide trace to a low-impedance ground plane for best ADC performance.
Do not apply voltage to RA0/RA1/RA3 during POR when configured as digital inputs without first ensuring VDD is stable - this can cause latch-up. Always configure unused I/O pins as outputs driving low to minimize current leakage. The MCLR pin (RA5/MCLR) requires a 10 kohm pull-up to VDD for normal operation; do not leave it floating. For ADC accuracy, perform a calibration sequence at startup using the internal voltage reference.
合規資訊
RoHS compliant per Microchip product page. PIC16LF1508-E/SS is NOT AEC-Q100 qualified; for automotive applications consult PIC16F1508-E/SS or AEC-Q100-qualified variants.
