PIC16LF1828T-I/SS - 8-bit 32MHz 7KB Flash MCU 20-SSOP
MPN: PIC16LF1828T-I/SS ✓ Hoạt độngPIC16LF1828T-I/SS Tóm tắt
An 8-bit flash microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, RAM, and peripherals on one die. The PIC16 family uses a RISC-based Harvard architecture with 14-bit instructions, where each instruction cycle takes 4 clock cycles. Within the broader semiconductor hierarchy, this device sits as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The 'LF' prefix denotes the low-voltage F-version operating range (1.8V-3.6V), enabling battery-powered and energy-harvesting applications.
Key features of the PIC16LF1828T-I/SS include up to 32MHz operation from a 3.0V-3.6V supply (16MHz from 1.8V), 12 ADC channels with 10-bit resolution, two 8-bit timers and one 16-bit timer, enhanced PWM modules, an mTouch capacitive-sensing peripheral, a configurable logic cell (CLC), and an EUSART with auto-baud detection. The XLP technology delivers sleep currents in the nanoamp range, extending battery life in always-on designs.
The internal architecture uses a dual-clock system with a high-frequency 32MHz oscillator (HFINTOSC) and a 32kHz low-power oscillator (LFINTOSC) for sleep-mode timing, plus a software-selectable system clock prescaler. The 10-bit ADC is Successive Approximation Register (SAR) type with acquisition time programmable in ADC clock cycles. Internal voltage reference options include a fixed 1.024V, 2.048V, and 4.096V reference, plus a bandgap reference.
Typical applications for the PIC16LF1828T-I/SS include low-power IoT sensor nodes (battery and energy-harvesting), capacitive-touch human-interface panels, remote controls, LED lighting controls, low-end motor control loops, sensor conditioning, and small appliances. The combination of low sleep current, ample analog peripherals, and mTouch makes it well suited for always-on capacitive user-interface designs.
Designers should note that the 'T' suffix denotes tape-and-reel packaging, the 'I' indicates the industrial temperature range (-40C to +85C), and '/SS' specifies the SSOP-20 package. For hand prototyping or low-volume builds, the non-T variant PIC16LF1828I/SS is supplied in tubes. Firmware development uses Microchip's free MPLAB X IDE with the XC8 compiler and the MPLAB Snap programmer/debugger.
This page synthesizes verified distributor pricing, drop-in same-package alternatives drawn from the PIC16F/LF1824/1828 family, and practical design notes drawn from the manufacturer datasheet that go beyond the bare part number listing.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1828T-I/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1828T-I/SS (cùng hình factor và footprint) — khác nhau ở ADC, Internal Oscillator, Timers, Core Architecture, I/O Pins.
PIC16LF1828-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1828T-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1828T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1824T-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1824T-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1828T-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 8-bit RISC, 14-bit instructions |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 17 (with multiplexed peripherals) |
| ADC | 10-bit SAR, up to 12 channels |
| Timers | 2x 8-bit, 1x 16-bit |
| PWM Outputs | Enhanced CCP/ECCP modules |
| Communication | EUSART with auto-baud, MSSP (I2C/SPI) |
| Capacitive Touch | mTouch peripheral, up to 12 channels |
| Internal Oscillator | 32 MHz HFINTOSC, 31 kHz LFINTOSC |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (I grade) |
| Hộp | 20-pin SSOP (SS), 5.30 mm body |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | MSL1 (per Microchip packaging) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Family | PIC16F/LF1824/1828 |
Cấu hình chân PIC16LF1828T-I/SS
| Chân 1 | RA2 — Digital I/O / analog input AN2 |
| Chân 2 | RA3 — Digital I/O / analog input AN3 / VREF+ input |
| Chân 3 | RA4 — Digital I/O / analog input AN4 / C1OUT |
| Chân 4 | RA5/MCLR/VPP — Digital I/O / Master Clear reset (active-low) / programming voltage |
| Chân 5 | VDD — Positive supply voltage (1.8V-3.6V) |
| Chân 6 | VSS — Ground reference |
| Chân 7 | RA7/OSC1/CLKIN — Digital I/O / crystal oscillator input / external clock input |
| Chân 8 | RA6/OSC2/CLKOUT — Digital I/O / crystal oscillator output / clock output |
| Chân 9 | RC0 — Digital I/O / analog input AN4 |
| Chân 10 | RC1 — Digital I/O / analog input AN5 |
| Chân 11 | RC2 — Digital I/O / analog input AN6 |
| Chân 12 | RC3 — Digital I/O / analog input AN7 |
| Chân 13 | RC4 — Digital I/O / SDA for MSSP I2C |
| Chân 14 | RC5 — Digital I/O / SDO for MSSP SPI |
| Chân 15 | RC6 — Digital I/O / TX for EUSART |
| Chân 16 | RC7 — Digital I/O / RX for EUSART |
| Chân 17 | RB7 — Digital I/O / analog input AN6 / PGD for ICSP |
| Chân 18 | RB6 — Digital I/O / analog input AN5 / PGC for ICSP |
| Chân 19 | RB5 — Digital I/O / analog input AN11 |
| Chân 20 | RB4 — Digital I/O / analog input AN10 |
Ứng dụng tiêu biểu
PIC16LF1828T-I/SS phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Capacitive-Touch User Interface, LED Lighting Control, Remote Control / Wireless HID, Small Appliance Control Board, Sensor Signal Conditioning / Transmitter.
Battery-Powered IoT Sensor Node
The PIC16LF1828T-I/SS is purpose-built for battery-powered wireless sensor nodes that spend most of their life in sleep. Its nanoWatt XLP architecture delivers sleep currents in the tens of nA per Microchip datasheet 41419A, and the integrated 31 kHz LFINTOSC drives a wake-up timer without an external crystal. The 10-bit SAR ADC with up to 12 input channels reads temperature, light, or battery voltage directly, while the EUSART drives a sub-GHz radio or BLE module via UART. The 7 KB Flash accommodates a small LoRaWAN or Zigbee-Nano stack and housekeeping firmware, leaving room for over-the-air update staging. Designers should verify that the chosen sensor's I/O voltage falls within the LF's 1.8V-3.6V range and use the CLC peripheral to wake the MCU on a GPIO event to maximize battery life.
Được đề xuất
Capacitive-Touch User Interface
With its on-chip mTouch capacitive-sensing peripheral, the PIC16LF1828T-I/SS can scan up to 12 touch electrodes without an external touch controller. According to Microchip datasheet 41419A, the mTouch block uses the ADC's Capacitive Voltage Divider (CVD) technique and supports both self- and mutual-capacitance layouts, which fits slider, wheel, and button matrices behind glass or plastic overlays. Combined with the CLC peripheral that implements custom logic in hardware, designers can debounce and latch touch events without CPU intervention, leaving the core free for communication. The low VDD operation lets the same chip drive a touch UI directly from a Li-ion cell. Pair it with an LED driver to provide visual feedback on each touch event.
Được đề xuất
LED Lighting Control
The PIC16LF1828T-I/SS is well suited to small-form LED lighting controls - desk lamps, cabinet lighting, and decorative strips - because it combines a 32 MHz core capable of driving software PWM at high resolution with the integrated 10-bit PWM modules and a CLC peripheral for hardware PWM fault handling. Per datasheet 41419A, the Enhanced PWM (ECCP) module supports center-aligned, half-bridge, and full-bridge modes, eliminating external gate-driver logic for low-side MOSFET dimming of constant-current LED strings. The 12-channel 10-bit ADC monitors LED current via a sense resistor and ambient light via a photodiode for closed-loop brightness control. Sleep current under 100 nA allows always-on ambient-light sensing without draining standby budgets.
Được đề xuất
Remote Control / Wireless HID
The PIC16LF1828T-I/SS's low sleep current and integrated mTouch peripheral make it a strong fit for handheld remote controls and wireless HID devices. The EUSART drives a 2.4 GHz or sub-GHz transceiver over a UART interface, while the mTouch block supports the modern touch-button front panel replacing mechanical keys. Per datasheet 41419A, sleep current of approximately 50 nA allows a coin-cell-powered remote to idle for multiple years between user interactions, and the 32 MHz HFINTOSC wakes the device and services the radio within microseconds. The 256 bytes of EEPROM store pairing IDs and user preferences without wearing out Flash.
Được đề xuất
Small Appliance Control Board
In small appliances - coffee machines, blenders, air purifiers - the PIC16LF1828T-I/SS provides the analog and digital peripherals required for sensor reading, motor timing, and user I/O without an external ADC or touch controller. The 12-channel 10-bit ADC reads NTC temperature sensors, airflow, and tank level; the ECCP module drives a triac or MOSFET for heater or universal-motor control; the CLC peripheral implements safety interlocks in hardware. Per Microchip datasheet 41419A, the industrial -40C to +85C operating range covers all typical appliance environments. The 7 KB Flash holds a state-machine plus diagnostics, and the 256-byte EEPROM stores user settings and last-mode memory across power cycles.
Được đề xuất
Sensor Signal Conditioning / Transmitter
The PIC16LF1828T-I/SS can serve as a low-cost 4-20 mA loop-powered sensor transmitter. Its 1.8V minimum VDD allows operation from a regulated 4 mA loop minimum, while the 10-bit ADC digitizes a bridge sensor, thermistor, or strain gauge with internal PGA options per Microchip datasheet 41419A. The EUSART drives a HART modem or industrial UART link, and the MSSP drives SPI/I2C sensors. The internal voltage reference (1.024V, 2.048V, 4.096V selectable) calibrates the ADC against ratiometric sensor excitation, and the 256-byte EEPROM stores calibration coefficients. The LF's low sleep current enables intermittent sampling and loop-power budgeting in wirelessHART nodes.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1828T-I/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1828-I/SS | PIC16F1828T-I/SS | PIC16LF1828T-I/SO | PIC16LF1824T-I/SL | PIC16F1824T-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 | SSOP-20 | SOIC-20 (verify land pattern) | SSOP-20 | SSOP-20 |
| Operating Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V |
| Program Flash | 7 KB | 7 KB | 7 KB | 7 KB | 4 KB | 4 KB |
| Data SRAM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Packaging Format | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| Automotive Grade | No | No | No | No | No | No |
Bảo phân biệt quan trọng
- Lowest sleep current in its 8-bit class via nanoWatt XLP (vsPIC16F1828T-I/SS)
- On-chip mTouch capacitive-sensing peripheral (vsPIC16LF1824T-I/SL)
- Industrial -40C to +85C operating temperature (vsAutomotive PIC16F1828-E/SS (extended))
Ghi chú thiết kế
The PIC16LF1828T-I/SS supports nanoWatt XLP sleep modes; configure the LFINTOSC as the secondary oscillator, gate unused peripherals via PMDx/PIE register bits, and disable the ADC before sleep to achieve the datasheet's lowest sleep currents. Per Microchip datasheet 41419A, idle current with the LFINTOSC active at 31 kHz and ADC off can be a few microamps, while full sleep with everything off drops into the tens-of-nA range. Add a 100 nF decoupling capacitor within 5 mm of VDD and a bulk cap on the supply rail.
The SSOP-20 thermal pad is not present, so PCB layout only needs VDD/VSS decoupling. Place a 100 nF ceramic between VDD (pin 5) and VSS (pin 6), and a 10 uF bulk capacitor on the same rail as close to the device as practical. For mTouch designs, route the touch electrode traces as short, guarded traces and avoid running them parallel to high-frequency switching signals - the CVD technique is sensitive to noise injection. Use a ground pour on the top layer under the chip and stitch it with multiple vias near VSS.
Do not apply voltages above 3.6V to the PIC16LF1828T-I/SS - unlike the PIC16F1828 which tolerates 5V, the LF variant will latch up or damage. If 5V signals must be read, use a level translator or add a series resistor divider to clamp the input to VDD + 0.3V. Per Microchip datasheet 41419A, MCLR (pin 4) is shared with RA5; if you disable MCLR via the CONFIG register, you lose easy ICSP access for debug - leave it as a reset pin in development boards. When migrating from PIC16F1828 firmware, ensure the CONFIG register's VDD range bits are not set to the 5V mode reserved for the F variant.
If using an external crystal on RA6/RA7 (OSC1/OSC2), route the crystal traces symmetrically with short lengths (under 10 mm) and surround them with a ground guard ring to minimize EMI coupling. The internal HFINTOSC at 32 MHz has a clock period of 31.25 ns - rise/fall times are fast, so consider a 4-layer PCB with a dedicated ground plane to control EMI. For high-impedance analog inputs (AN0-AN11), use the optional ADC CHOLD capacitor with a 100 ns acquisition time and average multiple samples to suppress 50/60 Hz line noise.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - migrate to Q-grade variants for automotive. Halogen-free status not stated in the verified web data.
