PIC16F1455-E/SL - 8-Bit USB MCU 14KB Flash 48MHz | Microchip
MPN: PIC16F1455-E/SL ✓ Hoạt độngPIC16F1455-E/SL Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, working RAM, and a rich set of peripheral interfaces such as timers, ADC, communication ports, and increasingly USB and capacitive touch sensing. The PIC16F1455 sits at the entry level of the enhanced mid-range 8-bit PIC family, providing USB connectivity that is uncommon in this pin count and price tier. Its taxonomy is: 8-bit microcontroller → enhanced mid-range PIC16 core → USB-capable PIC16F1xxx sub-family → power management IC domain (semiconductor).
Key features of the PIC16F1455-E/SL include a high-performance 49-instruction RISC core with 16 stack levels, an internal 48 MHz oscillator, self read/write Flash capability, and 128 bytes of non-volatile data storage. It also provides 12 I/O pins, multiple 8-bit and 10-bit ADC channels (per the LCSC product entry), two standalone 10-bit PWM modules, and Microchip's eXtreme Low Power (XLP) technology for sleep currents below the microamp range.
The device is built on Microchip's enhanced mid-range core architecture and supports in-circuit serial programming (ICSP) plus in-circuit debugging. Its USB 2.0 full-speed transceiver with internal clock recovery removes the cost and board area of a 12 MHz crystal for USB applications, making the part uniquely attractive in the 14-pin MCU segment.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), low-cost USB-to-UART bridges, sensor and lighting nodes requiring capacitive touch via mTouch, consumer toys, and battery-powered IoT endpoints that benefit from the XLP sleep current profile.
When designing with this MCU, note that the USB module requires a precise 48 MHz clock; although internal oscillator and PLL provide this, an external crystal can be used when stricter USB jitter compliance is required. The 14-SOIC footprint allows easy hand-soldering for prototypes while remaining production-friendly.
This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes for the PIC16F1455-E/SL that are not aggregated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1455-E/SL — 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 PIC16F1455-E/SL (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, Core Architecture, USB Module.
PIC16F1455-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1454-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1454T-I/ST
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1455-I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1455-E/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1454-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1455T-I/ST
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1455-E/SL Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Program Memory | 14 KB Flash (8K x 14 words) |
| RAM | 1 KB |
| Data EEPROM | 0 bytes (HEF emulation, 128 B NVDS) |
| Maximum CPU Speed | 48 MHz |
| Internal Oscillator | 48 MHz (with USB clock recovery) |
| Instruction Set | 49 instructions, 16 stack levels |
| I/O Pins | 12 |
| USB Module | USB 2.0 Full-Speed with clock recovery from USB |
| ADC | 8-bit and 10-bit modules |
| PWM | 2x 10-bit standalone PWM modules |
| Hộp | 14-SOIC (SL), 0.154 in / 3.90 mm body width |
| Nhiệt độ hoạt động | -40 °C to +125 °C (Industrial, E suffix) |
| Low Power Technology | XLP (eXtreme Low Power) |
| Programming | ICSP (In-Circuit Serial Programming) + ICD |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1455-E/SL
| Chân 1 | RA3/Vpp/MCLR — Digital I/O / programming voltage / Master Clear reset (active-low) |
| Chân 2 | RA0 — Digital I/O / analog input / DAC output |
| Chân 3 | RA1 — Digital I/O / analog input / DAC output |
| Chân 4 | Vss — Ground reference |
| Chân 5 | RA2 — Digital I/O / analog input |
| Chân 6 | RC0 — Digital I/O / USB Full-Speed D+ |
| Chân 7 | RC1 — Digital I/O / USB Full-Speed D- |
| Chân 8 | RC2 — Digital I/O |
| Chân 9 | RC3 — Digital I/O |
| Chân 10 | RC4 — Digital I/O |
| Chân 11 | RC5 — Digital I/O |
| Chân 12 | RA4 — Digital I/O / analog input |
| Chân 13 | RA5 — Digital I/O / analog input |
| Chân 14 | Vdd — Positive supply voltage |
Ứng dụng tiêu biểu
PIC16F1455-E/SL phù hợp cho 6 Áp dụngs: USB HID Peripherals, USB-to-UART Bridge, Consumer Toys and Education Boards, Capacitive Touch Sensor Nodes, Battery-Powered IoT Endpoints, Industrial Control Interfaces.
USB HID Peripherals
The PIC16F1455-E/SL is purpose-built for low-cost USB HID devices such as keyboards, mice, game controllers, custom input panels, and vendor-class USB gadgets. Its integrated USB 2.0 Full-Speed module with on-chip clock recovery eliminates the external 12 MHz crystal normally required for USB, shrinking the BOM and board area. The 14 KB Flash and 1 KB RAM fit HID report descriptors, bootloader logic, and modest application code, while the 12 available I/O pins are sufficient for matrix-scanned keyboards, capacitive touch sliders, and rotary encoder inputs.
Được đề xuất
USB-to-UART Bridge
The PIC16F1455-E/SL serves as a CP2102-equivalent USB-to-UART bridge for legacy equipment modernization. The on-chip USB device stack plus a software UART or bit-banged serial interface lets designers replace dedicated bridge ICs with a part that also has 12 GPIOs for RTS/CTS handshaking, status LEDs, and configuration straps. Operating from the USB 5 V bus directly with on-chip 3.3 V regulation keeps external components to a single bypass cap on most designs, and the industrial -40 to +125 °C range lets the same firmware deploy in industrial enclosures.
Được đề xuất
Consumer Toys and Education Boards
The PIC16F1455-E/SL is popular in STEM education kits and low-cost consumer toys because it combines USB programmability (no separate programmer required) with the PIC16 enhanced mid-range 8-bit core that students can learn quickly. The 14-SOIC package fits on through-hole adapter boards for breadboarding, while still being surface-mountable for finished products. The XLP sleep current below 1 µA extends battery life in portable toys, and the mTouch capacitive sensing peripherals enable touch-button toys without mechanical switches.
Được đề xuất
Capacitive Touch Sensor Nodes
The PIC16F1455-E/SL integrates Microchip's mTouch capacitive sensing module with up to 12 touch channels that map directly to its GPIO pins. Designers can build water-resistant touch buttons, sliders, and wheels for kitchen appliances, industrial control panels, and consumer electronics. The 10-bit ADC and 10-bit PWM modules support proximity sensing plus LED dimming on the same MCU, while the XLP sleep current keeps battery-powered touch wake-up designs in the sub-µA quiescent range.
Được đề xuất
Battery-Powered IoT Endpoints
The PIC16F1455-E/SL is well-suited to battery-powered IoT sensor endpoints that occasionally expose a USB port for firmware updates or configuration. XLP technology holds sleep current below 1 µA, allowing coin-cell-powered nodes to run for years. The 48 MHz core wakes quickly, processes sensor readings, and returns to sleep; USB enumeration is invoked only when the host requests a connection. The 14-SOIC's small footprint and industrial temperature grade suit outdoor IoT deployments.
Được đề xuất
Industrial Control Interfaces
The PIC16F1455-E/SL is used in industrial control interfaces such as USB-connected sensor readers, configuration programmers, and shop-floor status displays. Its -40 to +125 °C industrial temperature range ensures operation in unheated cabinets, while its 12 I/O pins drive opto-isolated inputs, relay coils, and indicator LEDs. The 48 MHz core plus 14 KB Flash supports Modbus, custom protocols, and local diagnostics without an external communication co-processor.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1455-E/SL — 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 | PIC16F1455-I/SL | PIC16F1454-I/SL | PIC16F1455-E/P | PIC16F1455T-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL), 3.90 mm body | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-PDIP (P) - different | TSSOP-14 (ST) - different |
| Program Memory (Flash) | 14 KB | 14 KB | 8 KB (-43%) | 14 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| USB 2.0 Module | Yes (Full-Speed, clock recovery) | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 °C to +125 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C | -40 °C to +85 °C (Industrial) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Approx. Qty-1 Price (USD) | 2.10 | 1.95 (-7%) | 1.70 (-19%) | 2.20 (+5%) | 2.00 (-5%) |
Bảo phân biệt quan trọng
- Industrial -40 to +125 °C temperature grade (vsPIC16F1455-I/SL)
- Higher Flash density than PIC16F1454 family (vsPIC16F1454-I/SL)
- Smaller surface-mount footprint vs PDIP alternatives (vsPIC16F1455-E/P)
Ghi chú thiết kế
Route the USB D+ (RC0, pin 6) and D- (RC1, pin 7) traces as a 90 Ω differential pair directly to the USB connector with no stubs. Keep the trace length under 50 mm and maintain a continuous ground reference plane underneath. Place the 100 nF Vdd bypass capacitor as close as possible to pin 14, with a 10 µF bulk capacitor within 10 mm of the supply pin. If the design is bus-powered only, the internal 3.3 V regulator output still requires a 4.7 µF decoupling cap on the regulator pin.
Do not leave MCLR/RA3 (pin 1) floating - even in production builds, configure MCLR disabled in the configuration word and add a 10 kΩ pull-up to Vdd. The internal 48 MHz oscillator is adequate for USB Full-Speed but adds jitter; designs requiring tight USB signal integrity should add a 12 MHz external crystal to the dedicated oscillator pins. Always define unused I/O pins as outputs and tie them low, or enable the internal weak pull-up to prevent shoot-through current in sleep mode.
XLP sleep current on the PIC16F1455-E/SL is rated below 1 µA at 3.3 V with the USB transceiver disabled. For battery-powered USB endpoints that wake on Vbus attach, configure the USB interrupt to wake from sleep but keep the on-chip regulator enabled to minimize attach-detection latency. Estimated: at 1 µA sleep current and a CR2032 coin cell (220 mAh), the theoretical node lifetime is approximately 25 years - actual life is dominated by coin-cell self-discharge rather than MCU quiescent current.
Thông tin tuân thủ
RoHS and REACH compliance inferred from Microchip product environmental information. AEC-Q100 not qualified - the PIC16F1455-E/SL is industrial-grade (E suffix) but not automotive-qualified; for AEC-Q100 USB PIC MCUs, consider PIC16F1459-E/SL Q1 variants or upgrade to PIC18F14K50 family.
