PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip
MPN: PIC16LF1455-E/JQ ✓ Hoạt độngPIC16LF1455-E/JQ Tóm tắt
An 8-bit microcontroller (MCU) is a small, low-power programmable processor that integrates CPU, Flash program memory, SRAM, peripherals, and I/O on a single die. The PIC16F family uses a 14-bit modified Harvard RISC instruction set and sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix designates an extended-voltage variant (2.5 V - 5.5 V) optimized for battery-powered operation, while "XLP" denotes Microchip's eXtreme Low Power platform featuring nanoWatt XLP technology with < 1 µA typical sleep currents.
Key features include 14 KB (8 K x 14) self-programmable Flash, 1024 B SRAM, 256 B EEPROM, a 10-bit ADC with up to 9 channels, two PWM modules, an enhanced USART, an MSSP (I2C/SPI) module, and a USB 2.0 full-speed transceiver that supports both HID and CDC classes without an external crystal. The on-chip 3.3 V regulator allows single-supply operation directly from a 5 V rail when the internal regulator is enabled.
The architecture pairs a deterministic RISC core with hardware CIPs such as CWG (Complementary Waveform Generator), DSM (Data Signal Modulator), and NCO (Numerically Controlled Oscillator). These offload timing-critical tasks from the CPU, enabling deterministic motor control, lighting, and USB bridging at very low average power, and they remove the firmware overhead that typically limits 8-bit designs.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), CDC virtual COM ports, USB-to-UART bridges, USB Li-Ion battery chargers, small sensor hubs, consumer toys, and low-cost USB dongles. The wide -40 °C to +125 °C range also suits industrial sensor front-ends and automotive cabin accessories.
When designing with this device, place the USB D+/D- traces as a 90-ohm differential pair with no stubs, and provide a 10 µF bulk capacitor plus 0.1 µF decoupling within 2 mm of the VDD pin. The ICSP/ICD pins are shared with USB; plan for either programming access or USB D+/D- on the same pads.
This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1455-E/JQ — 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 PIC16LF1455-E/JQ (cùng hình factor và footprint) — khác nhau ở Package, USB Module, Operating Temperature, Internal Oscillator, Program Memory (Flash).
PIC16F1455-E/JQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1455-I/JQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1454-I/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1454-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1454T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1455-E/JQ Tỷ lệ tối đa & tính chất điện
| Series | PIC® XLP™ 16F |
| Core | 8-bit RISC (14-bit instruction word) |
| Maximum CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8 K x 14) |
| Data Memory (SRAM) | 1024 B |
| EEPROM | 256 B |
| USB | USB 2.0 Full-Speed, integrated transceiver |
| ADC | 10-bit, up to 9 channels |
| Operating Voltage | 2.5 V to 5.5 V |
| Nhiệt độ hoạt động | -40 °C to +125 °C (E grade) |
| Hộp | 16-UQFN (4 x 4 mm) |
| Package Code | HVQCCN |
| Kiểu lắp đặt | Surface Mount (No-Lead) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16LF1455-E/JQ
| Chân 1 | RA5/ICSPCLK/D- — GPIO RA5 / ICSP clock / USB D- |
| Chân 2 | RA4/ICSPDAT/D+ — GPIO RA4 / ICSP data / USB D+ |
| Chân 3 | RA3/MCLR/VPP — GPIO RA3 / Master Clear (Reset) / Programming voltage |
| Chân 4 | RA2/T0CKI/AN2 — GPIO RA2 / Timer0 clock / ADC input AN2 |
| Chân 5 | RA1/ICSPCLK/AN1 — GPIO RA1 / ICSP clock / ADC input AN1 |
| Chân 6 | RA0/ICSPDAT/AN0 — GPIO RA0 / ICSP data / ADC input AN0 |
| Chân 7 | VSS — Ground |
| Chân 8 | VDD-MAIN — Main supply voltage (2.5 V to 5.5 V) |
| Chân 9 | RC7/RX/DT — GPIO RC7 / EUSART RX / Synchronous data |
| Chân 10 | RC6/TX/CK — GPIO RC6 / EUSART TX / Synchronous clock |
| Chân 11 | RC5/AN9 — GPIO RC5 / ADC input AN9 |
| Chân 12 | RC4/AN8 — GPIO RC4 / ADC input AN8 |
| Chân 13 | RC3/AN7 — GPIO RC3 / ADC input AN7 |
| Chân 14 | RC2/AN6 — GPIO RC2 / ADC input AN6 |
| Chân 15 | VDD-USB — USB transceiver supply voltage |
| Chân 16 | VSS-USB — USB transceiver ground |
Ứng dụng tiêu biểu
PIC16LF1455-E/JQ phù hợp cho 6 Áp dụngs: USB HID Keyboard / Mouse, USB CDC Virtual COM Port Bridge, USB Li-Ion Battery Charger Dongle, Low-Power Sensor Hub Dongle, USB LED Lighting Controller, Automotive Cabin USB Accessory.
USB HID Keyboard / Mouse
The PIC16LF1455-E/JQ is a near-ideal core for USB HID input devices. Its integrated USB 2.0 full-speed transceiver, 1024-byte SRAM, and 14 KB Flash accommodate full HID boot-loader descriptors plus a 50x8 key matrix scan state machine. CIP peripherals such as the I/O interrupt-on-change and timer/CWG modules debounce the matrix in hardware, dropping the CPU to nanoWatt sleep between key events. The 2.5-5.5 V supply accepts single-cell Li-Ion directly, and the 48 MHz core lets designers keep the scan loop at a sub-millisecond rate without sacrificing low average power. Place 100 nF + 4.7 µF decoupling within 2 mm of VDD-MAIN, route D+/D- as a 90-ohm differential pair, and tie VBUS through a 10 k pull-up to enable full-speed detection.
Được đề xuất
USB CDC Virtual COM Port Bridge
When migrating an existing RS-232 or UART peripheral to USB, the PIC16LF1455-E/JQ removes the need for an external USB-UART chip like the FT232R. The internal USB transceiver plus an enhanced USART (EUSART) provides a transparent UART-to-USB bridge at up to 921600 baud with the CDC class driver on the host. With 14 KB Flash, you can ship a CDC + CDC-line-control firmware plus a boot-loader for field updates. The exposed thermal pad aids heat dissipation under continuous bulk transfers. Watch the D+/D- impedance (90 ohm differential) and route them away from the EUSART lines; place a common-mode choke on VBUS if the dongle is hot-plugged into a noisy hub. Typical power budget is < 25 mA active at full speed, well within USB 2.0 high-power device limits.
Được đề xuất
USB Li-Ion Battery Charger Dongle
Combine the integrated USB transceiver with the on-chip 10-bit ADC and a simple PWM to build a 500 mA single-cell Li-Ion charger that negotiates with a Type-A host. The PIC16LF1455-E/JQ's 2.5-5.5 V input covers the 4.2 V float, while the CWG peripheral synthesizes a constant-current/constant-voltage control loop in hardware. Designers can rely on the nanoWatt XLP sleep mode to idle under 1 µA between charge cycles and to detect VBUS removal. The 16-UQFN package sits inside a small dongle form factor. Add a 100 nF cap on VDD-MAIN plus a 4.7 µF on VDD-USB to filter switching noise from the inductor; place a thermal pad copper pour of at least 25 mm² to dissipate ~1 W during fast-charge.
Được đề xuất
Low-Power Sensor Hub Dongle
For battery-powered sensor peripherals that connect to a host via USB, the PIC16LF1455-E/JQ delivers the right balance. The nanoWatt XLP technology drops sleep current below 1 µA, while the integrated USB transceiver wakes the device on host attach. The 1024-byte SRAM and 14 KB Flash fit a lightweight sensor front-end plus a CDC/HID composite stack. The ADC with up to 9 channels handles analog sensors directly, and the MSSP/I2C interface supports digital sensors. With a 3 V coin cell you get multi-year idle life and instant wake-up on USB attach; in industrial sensor hubs the -40 to +125 °C E grade and exposed thermal pad sustain continuous monitoring in harsh enclosures.
Được đề xuất
USB LED Lighting Controller
Use the PIC16LF1455-E/JQ to build a USB-controlled LED driver by leveraging the CWG (Complementary Waveform Generator) and DSM (Data Signal Modulator) peripherals. These CIP blocks generate accurate PWM, dead-band control, and analog modulation in hardware, offloading the CPU for low-jitter color mixing. With 14 KB Flash you can implement DMX-over-USB, MIDI lighting, or a simple HID dimmer. The 2.5-5.5 V supply accepts 5 V USB directly, and the integrated 3.3 V regulator feeds analog references cleanly. Because PWM is hardware-driven, the firmware can sit in nanoWatt XLP sleep for most of the period, and the 48 MHz CPU can update color targets at 1 kHz with no glitch. Add a ferrite bead on VBUS plus 100 nF / 4.7 µF local caps to suppress switching noise.
Được đề xuất
Automotive Cabin USB Accessory
The PIC16LF1455-E/JQ's -40 °C to +125 °C extended temperature grade makes it suitable for automotive cabin USB accessories such as custom infotainment HID controls, lighting rings, and HVAC trim modules. The integrated USB full-speed transceiver handles host enumeration reliably across vehicle power transients, and the on-chip 3.3 V regulator rejects the typical 9-16 V battery input once bucked down. The exposed thermal pad on the 16-UQFN package helps dissipate continuous draw from LED or relay drivers. With 14 KB Flash you can ship a USB HID stack plus a small custom protocol; nanoWatt XLP keeps idle current under 1 µA so accessories don't drain the battery when parked. Place 100 nF + 4.7 µF decoupling close to VDD pins and add a TVS on VBUS to absorb automotive transients.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1455-E/JQ — 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-E/JQ | PIC16LF1455-I/JQ | PIC16LF1454-I/JQ | PIC16LF1454-I/ML | PIC16LF1454T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-UQFN (4x4) - JQ | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - ML | 16-UQFN (4x4) - ML |
| Operating Voltage | 2.5 V to 5.5 V | 3.0 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Flash | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB |
| USB Transceiver | USB 2.0 FS integrated | USB 2.0 FS integrated | USB 2.0 FS integrated | Not present (1454 family) | Not present (1454 family) | Not present (1454 family) |
| NanoWatt XLP Sleep | Yes (<1 µA) | Yes (higher than LF) | Yes (<1 µA) | Yes (<1 µA) | Yes (<1 µA) | Yes (<1 µA) |
Bảo phân biệt quan trọng
- Extended -40 to +125 °C temperature grade (vsPIC16LF1455-I/JQ)
- Lower minimum supply voltage (vsPIC16F1455-E/JQ)
- Integrated USB 2.0 full-speed transceiver (vsPIC16LF1454-I/JQ)
Ghi chú thiết kế
Route the USB D+/D- pair as a 90-ohm differential pair with no stubs and keep the pair length matched to within 150 mil. Place a 100 nF + 4.7 µF decoupling capacitor within 2 mm of each VDD pin and tie the exposed thermal pad to a 25 mm² copper pour on the top layer to provide thermal relief under continuous USB traffic. The ICSP/ICD signals share the USB D-/D+ pads; if you need both ICSP and USB at the same time, add a 0-ohm resistor that the user can swap.
PIC16LF1455-E/JQ operates from 2.5 V to 5.5 V with nanoWatt XLP sleep currents below 1 µA. Estimated: with VDD=5.0 V and active CPU at 48 MHz, active current is approximately 8 mA typical, so budget 25 mA worst-case for a 5 V USB design. Add a 4.7 µF bulk cap on VDD-MAIN, a 0.1 µF ceramic close to each VDD pin, and a ferrite bead on VBUS to suppress host switching noise.
Do not confuse the 16-pin UQFN (JQ) variant with the 20-pin SSOP or 28-pin QFN (ML) variants - they share the same die but pin count and pinout differ. Ensure MCLR/VPP is tied to VDD through a 10 k resistor for normal operation, or driven high during programming. The internal 3.3 V regulator output (VDD-USB) must not be used to power external circuits except for USB pull-up - drive only the USB transceiver from this rail.
The PIC16LF1455-E/JQ's USB full-speed transceiver requires the D+/D- impedance to be tightly controlled at 90 ohms differential. Place a common-mode choke or ferrite bead on VBUS if the dongle is hot-plugged into a noisy hub. Keep the EUSART TX/RX traces away from the D+/D- pair and add ground stitching vias along the USB differential pair to reduce common-mode noise.
Thông tin tuân thủ
RoHS compliant per Microchip product page. E grade is extended temperature but not AEC-Q100 qualified; AEC-Q100 qualified automotive parts are typically the PIC16F1xxx-ICE variants with a separate ordering code. Halogen-free status not explicitly stated in provided web data.
