PIC16LF1508T-I/SS - 8-bit 20MHz 7KB Flash MCU 20-SSOP | Microchip
料号： PIC16LF1508T-I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.5 | $1.50 |
| 10 | $1.41 | $14.10 |
| 100 | $1.32 | $132.00 |
| 500 | $1.2 | $600.00 |
| 1,000 | $1.1 | $1,100.00 |
PIC16LF1508T-I/SS 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable peripherals. The PIC16F1508 specifically uses an enhanced mid-range 8-bit core with 49 instructions and 16 stack levels, occupying the position of low-pin-count 8-bit MCUs in the broader taxonomy: 8-bit microcontroller -> microcontroller -> embedded controller -> semiconductor. It is one of the smallest, lowest-power members of Microchip's PIC16F1xxx family.
Key features of this part include 18 digital I/O pins, a 10-bit ADC with multiple channels, four Configurable Logic Cells (CLC), a Complementary Waveform Generator (CWG), a Numerically Controlled Oscillator (NCO), and nanoWatt XLP extreme-low-power technology. The peripheral set enables designers to implement custom logic, waveform generation, and frequency synthesis in hardware without external components.
The 7 KB Flash provides ample headroom for state-machine, sensor-interface, and small protocol-stack applications, while 256 bytes of SRAM handles small data buffers and the stack. ICSP (In-Circuit Serial Programming) via two pins plus a dedicated reset line allows in-field firmware updates and debug support through PICkit 3 or MPLAB ICD 3.
Typical applications include consumer white goods, low-cost LED lighting control, battery-powered sensor nodes, small appliances, and home-automation modules. The nanoWatt XLP feature is particularly useful in battery applications that require sleep currents in the nanoamp range.
When designing with this part, allocate adequate ground and supply decoupling near each supply pin and follow Microchip's SSOP thermal layout guidance. The MPLAB X IDE with XC8 compiler and the PICkit 3 / MPLAB ICD 3 / MPLAB Snap programmer are the standard development toolchain.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, enabling engineers to make quicker replacement and BOM decisions.
直接替换替代料： PIC16LF1508T-I/SS ——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： PIC16LF1508T-I/SS （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Instruction Set, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1508-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1508-E/SS
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC16LF1508T-I/GZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.31 / 个
查看数据手册 →PIC16F1508-I/SS
✅ 直接替换✓ 有现货
$1.02 / 个
查看数据手册 →PIC16LF1507-I/SS
✅ 直接替换✓ 有现货
$0.75 / 个
查看数据手册 →PIC16LF1508T-E/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1508T-I/SS 最大额定值与电气特性
| Core | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions, 16 stack levels |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 256 bytes |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF); 2.5 V to 3.6 V at 20 MHz |
| I/O Pins | 18 |
| ADC | 10-bit |
| Configurable Logic Cells (CLC) | 4 |
| Complementary Waveform Generator (CWG) | Yes |
| Numerically Controlled Oscillator (NCO) | Yes |
| Low-Power Technology | nanoWatt XLP |
| 工作温度 | -40 C to +85 C (industrial, "I" grade) |
| 封装 | 20-pin SSOP (0.209 inch / 5.30 mm body width) |
| 安装类型 | Surface Mount |
| Packaging | Tape and Reel ("T" suffix) |
| Programming/Debug | ICSP via PICkit 3, MPLAB ICD 3, MPLAB Snap |
| RoHS 状态 | Compliant |
PIC16LF1508T-I/SS 引脚配置
| 引脚 1 | RA5 — Digital I/O / analog input |
| 引脚 2 | RA4 — Digital I/O / analog input |
| 引脚 3 | RA3/MCLR — Digital I/O or Master Clear (reset) input |
| 引脚 4 | RA2 — Digital I/O / analog input |
| 引脚 5 | RA1 — Digital I/O / analog input |
| 引脚 6 | RA0 — Digital I/O / analog input |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| 引脚 9 | RB7 — Digital I/O |
| 引脚 10 | RB6 — Digital I/O / ICSP clock |
| 引脚 11 | RB5 — Digital I/O / analog input |
| 引脚 12 | RB4 — Digital I/O / analog input |
| 引脚 13 | RB3 — Digital I/O / analog input |
| 引脚 14 | RB2 — Digital I/O / analog input |
| 引脚 15 | RB1 — Digital I/O / analog input / ICSPCLK |
| 引脚 16 | RB0 — Digital I/O / analog input / ICSPDAT |
| 引脚 17 | RC7 — Digital I/O |
| 引脚 18 | RC6 — Digital I/O |
| 引脚 19 | RC5 — Digital I/O |
| 引脚 20 | RC4 — Digital I/O |
典型应用
PIC16LF1508T-I/SS 适用于 7 应用s: Battery-Powered IoT Sensor Node, LED Lighting Control, Small Appliance Control Board, Consumer White Goods Interface, Low-Cost Frequency Synthesizer / Tone Generator, Remote Control / IR-Emitter Node, Smart Home Sensor Hub.
Battery-Powered IoT Sensor Node
The PIC16LF1508T-I/SS fits battery-powered IoT sensor nodes by combining 7 KB Flash for sensor-firmware state machines with nanoWatt XLP deep-sleep currents in the nanoampere range, extending coin-cell battery life to multiple years. The 1.8 V minimum supply lets the MCU run directly from two AA cells without a boost regulator. The 10-bit ADC handles temperature, humidity, and battery-voltage measurements, while the CLC and NCO peripherals implement wake-up timing and pulse counting in hardware without external components.
推荐
LED Lighting Control
The PIC16LF1508T-I/SS suits LED lighting controllers because its Complementary Waveform Generator (CWG) generates complementary PWM outputs with programmable dead-band control for half-bridge LED drivers, eliminating external gate-driver timing circuits. Four Configurable Logic Cells (CLC) implement custom dimming profiles and over-current protection logic on-chip. With 20 MHz CPU speed, the part handles DMX-style or DALI protocol frames in software while the CLC handles real-time LED-current regulation in hardware.
推荐
Small Appliance Control Board
In small appliances such as coffee makers, blenders, or fans, the PIC16LF1508T-I/SS provides 18 I/O to drive keypads, seven-segment displays, triac-fired heater elements, and buzzer feedback from a single chip. The enhanced mid-range core at 20 MHz (5 MIPS) runs brushed-motor control loops and user-interface state machines with ample headroom. Its industrial -40 to +85 C temperature rating handles under-cabinet and kitchen-environment thermal stress without derating.
推荐
Consumer White Goods Interface
The PIC16LF1508T-I/SS handles user-interface tasks in washing machines, dishwashers, and refrigerators where a low-cost 8-bit MCU drives rotary encoders, capacitive touch buttons, and segmented LCDs. Seven KB Flash accommodates localized UI strings and diagnostic routines, while the EUSART and MSSP peripherals talk to the main appliance controller over UART or I2C. The PIC XLP low-power modes keep standby power below 0.5 W for energy-star compliance.
推荐
Low-Cost Frequency Synthesizer / Tone Generator
The PIC16LF1508T-I/SS's on-chip Numerically Controlled Oscillator (NCO) provides 20-bit frequency resolution with hardware accumulator stepping, producing accurate square-wave, triangular, or pulse outputs without CPU intervention. This makes the part useful as a low-cost replacement for external DAC-based synthesizers in test-tone generators, piezo-buzzer drivers, and reference-clock sources. Combined with the CWG module, dead-band-controlled complementary outputs are available for driving piezo transformers.
推荐
Remote Control / IR-Emitter Node
For IR remote controls and wireless sensor emitters, the PIC16LF1508T-I/SS combines nanoWatt XLP sleep modes for multi-year battery life with on-chip CLC for generating precisely-timed 38 kHz carrier waveforms. Seven KB Flash stores multiple protocol libraries (RC5, NEC, proprietary), and the MSSP peripheral supports SPI RF-transceiver links. The PIC16LF1508T-I/SS footprint in SSOP-20 keeps the BOM compact for handheld enclosures.
推荐
Smart Home Sensor Hub
The PIC16LF1508T-I/SS serves as a leaf-node controller in smart-home sensor hubs, aggregating inputs from one or two analog sensors via its 10-bit ADC and forwarding readings over UART or SPI to a parent MCU. With 256 bytes of RAM and 7 KB Flash, the part runs smoothing filters and event-detection state machines locally before forwarding. The industrial -40 to +85 C rating supports outdoor-mounted sensor enclosures in cold-climate and attic deployments.
推荐
推荐产品汇总
工程参考数据： PIC16LF1508T-I/SS ——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 | PIC16LF1508-I/SS | PIC16LF1508-E/SS | PIC16F1508-I/SS | PIC16LF1507-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Core | PIC16 8-bit enhanced mid-range | PIC16 8-bit enhanced mid-range | PIC16 8-bit enhanced mid-range | PIC16 8-bit enhanced mid-range | PIC16 8-bit enhanced mid-range |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB |
| RAM | 256 B | 256 B | 256 B | 256 B | 128 B |
| Operating 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 |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| Max CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| CLC / CWG / NCO | 4 / 1 / 1 | 4 / 1 / 1 | 4 / 1 / 1 | 4 / 1 / 1 | reduced set |
关键差异点
- Industrial temperature grade with tape-and-reel packaging （对比 PIC16LF1508-I/SS)
- Extended temperature option available in same package （对比 PIC16LF1508-E/SS)
- Lower-voltage operation than PIC16F1508 （对比 PIC16F1508-I/SS)
设计说明
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 8) and a bulk 1 uF to 10 uF tantalum or ceramic capacitor on the same supply trace. The PIC16LF1508T-I/SS draws sharp transient currents when peripherals and the CPU clock up, so star-ground topology is recommended. For nanoWatt XLP sleep modes, ensure no high-impedance digital inputs are left floating - tie unused I/O to VDD or VSS to avoid parasitic current paths during sleep.
At 20 MHz with all peripherals active, the SSOP-20 package typically dissipates under 50 mW, well within the 200 mW absolute maximum. However, in tightly enclosed industrial enclosures above 60 C ambient, derate CPU frequency or add a small copper pour on the SSOP exposed leads to spread heat. The industrial -40 to +85 C temperature grade is sufficient for most consumer and indoor-industrial use; select the -E variant for under-hood or attic installations above 85 C.
Route the ICSP clock and data lines (RB6/RB7 or RB1/RB0) away from high-frequency switching signals to avoid programming glitches during in-field firmware updates. Place the MCLR pull-up resistor (typically 10 kOhm to VDD) close to pin 3. If using an external crystal, keep traces short and symmetric, and place load capacitors within 5 mm of the OSC pins. For noisy environments, add a 100 nF decoupling cap directly on the VCAP pin if present.
Do not assume all PIC16F1508 variants run down to 1.8 V - only the LF suffix parts (PIC16LF1508) support 1.8 V operation. The 5 V PIC16F1508 will brown-out at 1.8 V. Also, when migrating from PIC16LF1507 firmware, verify that the additional CLC, CWG, and NCO peripherals are not inadvertently enabled by configuration mismatches, which can cause unexpected current draw in sleep mode. Always check the CONFIG1 and CONFIG2 register defaults against the datasheet's recommended settings for low-power applications.
The PIC16LF1508T-I/SS I/O pins have limited drive strength (typically 25 mA source/sink). For driving LEDs directly, use a current-limiting resistor and stay within the per-pin and per-port aggregate limits specified in the datasheet's electrical characteristics. For I2C buses above 400 kHz, use external pull-up resistors in the 1 kOhm to 4.7 kOhm range rather than relying on the weak internal pull-ups. Schmitt-trigger inputs on RB ports tolerate slow edges; RA ports do not, so add series resistors if RA lines carry long cable signals.
合规信息
RoHS and REACH compliance per Microchip product page; lead-free reflow compatible. Industrial -I temperature grade only - for automotive AEC-Q100 qualification, no -Q1 variant is offered for this part number family.
