PIC16LF1459T-I/SS - 14KB Flash 48MHz 8-bit XLP MCU | Microchip
料号： PIC16LF1459T-I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.72 | $17.20 |
| 100 | $1.49 | $149.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16LF1459T-I/SS 概述
An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (Flash), data memory (SRAM), peripherals, and I/O on a single die. Within the broader semiconductor taxonomy it sits at: microcontroller (MCU) -> embedded controller -> digital IC -> semiconductor. PIC microcontrollers are RISC-architecture devices with a Harvard memory layout (separate program and data buses), and the LF family is the low-power variant engineered for battery and USB-powered designs with the eXtreme Low Power (XLP) feature set.
Key features include 14KB self-programmable Flash (8K x 14 words), 1024 bytes of SRAM, an integrated 3.5KB USB 2.0 Full-Speed peripheral with internal 3.3V regulator and transceiver, an internal 48MHz oscillator (no external crystal required for USB), mTouch capacitive sensing, two 10-bit PWMs, and a 17-channel 10-bit ADC. The 20-pin SSOP package provides 18 I/O pins with four 10-bit PWM outputs and a wide operating voltage range.
The PIC16LF1459 architecture leverages an enhanced mid-range 14-bit instruction word core, allowing single-cycle execution of most instructions with skip/single-cycle branch support. Internal peripherals include the USB SIE with on-chip transceiver (eliminating external USB components), capacitive touch sensing via the mTouch hardware, and a configurable logic cell (CLC) for custom logic. The integrated nanoWatt XLP technology provides sleep currents as low as 30 nA, making the part suitable for battery-powered applications.
Typical applications include USB HID peripherals such as mice, keyboards, and custom input devices, capacitive touch user interfaces (keypads, sliders, proximity sensors), consumer electronics remote controls, low-power sensor nodes, and industrial control modules with USB diagnostics. The combination of integrated USB and low-power operation removes the need for external regulators and transceivers.
Design consideration: when designing USB applications, ensure the D+/D- traces are 90-ohm differential and the VBUS pin sees 5V from the host; the internal 3.3V regulator powers the USB transceiver. For capacitive touch, route the sense traces to minimize parasitic capacitance and use the mTouch software library.
This page synthesizes distributor pricing, drop-in alternatives within the PIC16LF145x family, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16LF1459T-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： PIC16LF1459T-I/SS （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Timers, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1459-I/SS
✅ 直接替换✓ 有现货
$1.62 / 个
查看数据手册 →PIC16F1459T-I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16LF1455T-I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16LF1454T-I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16LF1459-E/SS
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16LF1459T-I/SS 最大额定值与电气特性
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 enhanced mid-range (RISC, Harvard) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1024 bytes |
| Maximum CPU Frequency | 48 MHz |
| Instruction Cycle Time | 200 ns |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Typical Operating Voltage | 2.5 V / 3.3 V |
| Number of I/O Pins | 18 |
| USB Peripheral | USB 2.0 Full-Speed with integrated 3.3V regulator and transceiver |
| 封装 | 20-pin SSOP |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +85 C (Industrial) |
| Packaging Type | Tape and Reel (T suffix) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC16LF1459T-I/SS 20-pin ssop 引脚配置指南
PIC16LF1459T-I/SS（20-pin ssop 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： PIC16LF1459T-I/SS.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC16LF1459T-I/SS 适用于 6 应用s: USB HID Peripherals (Mouse, Keyboard, Custom Input), Capacitive Touch User Interfaces (mTouch Keypads, Sliders), Consumer Electronics Remote Controls, Low-Power Sensor Nodes (Battery IoT Endpoints), Industrial Control Modules with USB Diagnostics, USB Charging and Power Bank Controllers.
USB HID Peripherals (Mouse, Keyboard, Custom Input)
The PIC16LF1459T-I/SS is ideally suited for USB Human Interface Device peripherals because of its integrated USB 2.0 Full-Speed SIE with on-chip transceiver and 3.3V regulator. The 48MHz internal oscillator and 14KB Flash easily fit a complete USB HID class driver plus application firmware. At 48MHz the enhanced mid-range core executes instructions in 200ns, leaving ample MIPS for HID polling, button debouncing, and sensor processing. The wide 1.8V-3.6V VDD range simplifies single-cell Li-ion or 2xAA battery designs with direct USB VBUS (5V) sensing. For USB mouse designs, the mTouch hardware can be reused for touch-scroll surfaces alongside the optical sensor.
推荐
Capacitive Touch User Interfaces (mTouch Keypads, Sliders)
The PIC16LF1459's hardware mTouch peripheral - a dedicated CPS module that performs charge-and-discharge capacitive sensing without an external timer IC - enables reliable touch button arrays and sliders. The 1.8V-3.6V VDD supports battery-powered remote controls, and the 18 user I/O pins provide up to 17 capacitive sensor channels plus an indicator LED driver. XLP nanoWatt technology delivers typical sleep currents in the nanoamp range, so battery life is set by the standby drain of the MCU rather than the touch hardware. Microchip's mTouch software library provides debounced, hysteresis-managed touch detection with a development kit for tuning sensitivity.
推荐
Consumer Electronics Remote Controls
For IR/RF/Bluetooth remote controls, the PIC16LF1459T-I/SS offers the right balance of low power, USB debug/programming, and modest Flash. The integrated USB enables PC-based firmware update and factory calibration through a single Mini-USB connector. The 48MHz CPU and 14KB Flash handle remote control protocol stacks (NEC RC5/6, SIRC, or simple proprietary protocols) plus capacitive button decoding. Sleep currents in the sub-microamp range (with XLP) extend battery life to multi-year timelines on coin cells.
推荐
Low-Power Sensor Nodes (Battery IoT Endpoints)
The PIC16LF1459T-I/SS is well-matched to battery-powered sensor endpoints in indoor IoT, including temperature/humidity loggers, door/window sensors, and appliance monitors. XLP technology provides deep sleep currents measured in nanoamps, so a CR2032 cell can outlast the device. The 10-bit ADC and digital peripherals interface with digital sensors over I2C/SPI/UART. Microchip's firmware library includes low-power design patterns showing typical deep-sleep wake-and-measure cycles in the microamp-second range.
推荐
Industrial Control Modules with USB Diagnostics
Industrial control modules, machine-to-machine bridges, and panel meters increasingly need a USB port for diagnostics, firmware updates, and configuration. The PIC16LF1459T-I/SS integrates the USB PHY plus 3.3V regulator, eliminating external interface components. The 14KB Flash fits small Modbus or custom protocol stacks for simple data loggers and control peripherals. Industrial-grade -40C to +85C temperature range plus the option of the PIC16LF1459-E/SS (-40C to +125C) handle harsh-environment deployment. The 20-pin SSOP package provides 18 I/O, enough for 4-5 control outputs plus the USB port and a few ADC inputs.
推荐
USB Charging and Power Bank Controllers
The PIC16LF1459T-I/SS can implement custom USB charging controllers, power bank BMS front-ends, and fast-charge protocol shims. The integrated USB transceiver can enumerate as a charging port or implement proprietary device-to-device charging protocols, while the PIC ADC monitors battery voltage and current. The wide VDD range supports operation directly from a single Li-ion cell (3.0-4.2V) down to 1.8V cutoff. The PWM and comparator peripherals can switch high-current MOSFETs or drive indicator LEDs without external glue logic.
推荐
推荐产品汇总
工程参考数据： PIC16LF1459T-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 | PIC16LF1459-I/SS | PIC16LF1459-E/SS | PIC16F1459T-I/SS | PIC16LF1455T-I/SS | PIC16LF1454T-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 14 KB | 8 KB (-43%) | 7 KB (-50%) |
| SRAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 512 bytes (-50%) | 512 bytes (-50%) |
| Operating Voltage Range | 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 (broader) | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Integrated USB 2.0 FS | Yes (SIE + transceiver + 3.3V LDO) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packaging Format | Tape and Reel (T suffix) | Tube (no T suffix) | Tube | Tape and Reel | Tape and Reel | Tape and Reel |
关键差异点
- Tape-and-reel format for high-volume automated assembly （对比 PIC16LF1459-I/SS)
- Same die as PIC16F1459 with extended voltage tolerance （对比 PIC16F1459T-I/SS)
- Highest memory in the PIC16LF145x 20-SSOP family （对比 PIC16LF1455T-I/SS)
- Extended temperature option in same SSOP-20 pinout （对比 PIC16LF1459-E/SS)
设计说明
When designing battery-powered designs, leverage the PIC16LF1459's XLP nanoWatt technology in sleep modes for current consumption in the nanoamp range. Estimated: typical active current at 48MHz with all peripherals on is around 4-5 mA; deep sleep (with WDT and RTC enabled) drops to <1 uA, making 2xAA alkaline or CR2032 coin-cell operation feasible for years. Pay attention to the peripheral clock gating to avoid leaving unused peripherals clocked in active mode.
Place the 20-SSOP 100nF VDD decoupling capacitor within 5mm of the VDD pin with a wide trace (at least 0.5mm) and short loop. For USB applications, the D+ and D- traces must be routed as a 90-ohm differential pair with continuous reference plane; keep them matched within 0.5mm and avoid stubs. The VBUS pin connects directly to USB VBUS (5V from the host); the internal 3.3V regulator derives the USB PHY supply from this rail.
Do not connect the USB D+/D- pins to external pull-up resistors when using the internal USB transceiver; the internal pull-up is software-controlled and conflicts with external resistors. Estimated: when migrating firmware between PIC16LF1459 and PIC16F1459, check VDD configuration bits - the LF variant requires VDD minimum 1.8V while F requires 2.3V; running an F-variant firmware on an LF part at 1.8V-2.2V can cause Flash programming failures. The 'T' suffix on reel parts must match your pick-and-place tooling requirements; tube parts (-I/SS without T) are required for hand-prototyping.
For mTouch capacitive sensing layouts, route the sense traces away from switching signals and ground copper pours. Use a guard ring tied to ground around each sense pad, and ensure the chip's CTMU (Charge Time Measurement Unit) peripheral is calibrated per Microchip's AN1250 application note. The 20-SSOP package's exposed die pad (if present) must be soldered to the board's ground plane for thermal dissipation and electrical performance; failure to do so can affect ADC accuracy and mTouch sensitivity.
合规信息
RoHS compliant and lead-free per Microchip product page; not AEC-Q100 qualified; halogen-free status not stated in available data. Industrial temperature grade is -40C to +85C.
