PIC16F1454T-I/ST - 8-bit USB MCU 14KB Flash 48MHz TSSOP-14 | Microchip
MPN: PIC16F1454T-I/ST ✓ فعالPIC16F1454T-I/ST جائزہ
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (flash/ROM), working memory (RAM), and programmable peripherals into a single chip. The PIC16F1454 belongs to the 8-bit PIC16 family of microcontrollers, which sit at the entry-level of Microchip's product hierarchy (PIC16F -> 8-bit MCU -> MCU -> semiconductor). The 'XLP' (eXtreme Low Power) branding signals sleep currents in the microamp range, which is critical for battery-powered USB HID, sensor, and remote-control designs.
Key features include 128 B of non-volatile data storage (EEPROM-like), a Universal Serial Bus 2.0 module with clock recovery from the USB host (eliminating an external crystal for many USB applications), an MI2C/SPI master module, and 8 general-purpose I/O pins. The internal 48MHz oscillator supports USB full-speed operation without an external resonator, simplifying the BOM and shrinking the PCB footprint.
Typical applications include USB HID peripherals (keyboards, mice, custom HID devices), USB-to-UART bridges, sensor hubs, low-cost capacitive touch interfaces, lighting controls, and consumer products that need a single-chip USB solution at minimum external component count. The wide 2.3V-5.5V operating range also suits direct USB bus-powered designs.
When designing with this part, leverage the internal 48MHz oscillator for USB to avoid external crystal cost, but add a 0.1uF decoupling capacitor near every VDD pin and route the USB D+/D- lines as a 90-ohm differential pair. The 14-pin TSSOP leaves only 8 usable GPIO, so plan pin allocation early.
This page consolidates verified distributor pricing, drop-in TSSOP-14 alternatives, and practical USB design guidance that goes beyond what the manufacturer datasheet alone provides.
کے لیے ڈراپ اِن متبادل PIC16F1454T-I/ST — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F1454T-I/ST (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Operating Temperature, Internal Oscillator, I/O Pins, Core Architecture.
PIC16F1454-I/ST
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F1455-I/ST
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F1454-E/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F1454T-I/ST زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Set | 49 instructions, 16 stack levels |
| Instruction Execution Time | 200 ns at 48 MHz (1 instruction per Tcy) |
| Maximum CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1 KB (1K x 8) |
| Non-volatile Data EEPROM | 128 B |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| Internal Oscillator | 48 MHz (USB-capable) |
| USB Module | USB 2.0 Full-Speed with clock recovery from host |
| Serial Interfaces | MI2C/SPI (Master I2C/SPI) |
| General-Purpose I/O Pins | 8 |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (industrial grade) |
| پیکیج | 14-pin TSSOP (4.40 mm width) |
| ماؤنٹنگ ٹائپ | Surface Mount, Tape and Reel (T suffix) |
| MSL لیول | 1 (unlimited floor life at <=30C/85% RH) |
| RoHS اسٹیٹس | Compliant |
PIC16F1454T-I/ST پن کنفیگریشن
| پن 1 | RA3 — Digital I/O / AN3 |
| پن 2 | RA4 — Digital I/O / AN4 |
| پن 3 | RA5/MCLR/VPP — Digital I/O / Master Clear (reset) / Programming voltage |
| پن 4 | VSS — Ground reference |
| پن 5 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| پن 6 | RA1/D-/ICSPCLK — Digital I/O / USB D- / ICSP clock |
| پن 7 | RA0/D+/ICSPDAT — Digital I/O / USB D+ / ICSP data |
| پن 8 | RA2 — Digital I/O |
| پن 9 | RC0 — Digital I/O |
| پن 10 | RC1 — Digital I/O |
| پن 11 | RC2 — Digital I/O |
| پن 12 | RC3 — Digital I/O |
| پن 13 | RC4 — Digital I/O |
| پن 14 | RC5 — Digital I/O |
عام استعمالات
PIC16F1454T-I/ST کے لیے موزوں ہے 6 ایپلیکیشنs: USB HID Peripheral (Keyboard / Mouse / Custom HID), USB CDC Virtual COM Port Bridge, Capacitive Touch Interface with USB, Sensor Hub / Data Logger, Lighting Control (DMX / Custom USB), USB-Based Firmware Update / Bootloader Target.
USB HID Peripheral (Keyboard / Mouse / Custom HID)
The PIC16F1454T-I/ST integrates a USB 2.0 full-speed device controller with on-chip clock recovery from the USB host, eliminating the need for an external 4 MHz crystal in keyboard, mouse, or custom HID designs. The 14 KB flash fits Microchip's USB HID class stack plus matrix-scanning firmware for typical 8x8 or 10x8 key matrices, while the 1 KB RAM supports HID report buffering. The internal 48 MHz oscillator drives the USB 48 MHz clock directly, minimizing BOM cost and shrinking PCB footprint to the 14-pin TSSOP. At typical HID polling rates of 125 Hz, the XLP idle current stays in the microamp range, making it suitable for battery-powered wireless HID dongles.
تجویز کردہ
USB CDC Virtual COM Port Bridge
For low-cost USB-to-UART bridges, the PIC16F1454T-I/ST runs a CDC ACM class stack on its USB 2.0 module and uses the MI2C/SPI master to interface with an external UART transceiver or to expose a serial console via direct bit-banging on the GPIO. The 48 MHz internal oscillator delivers clean USB packet timing without an external resonator, while the 2.3 V-5.5 V VDD range lets the part run directly off USB VBUS (5 V) without a separate regulator. The 128-byte EEPROM provides storage for VID/PID or user configuration, and the 8 GPIO pins remain available for handshaking signals (RTS, CTS) when needed.
تجویز کردہ
Capacitive Touch Interface with USB
The PIC16F1454T-I/ST's MI2C/SPI master module interfaces directly with Microchip's MTCH10xx capacitive-touch front-end ICs, while the USB 2.0 module reports touch events to a host PC as HID digitizer or vendor-class reports. The XLP low-power modes keep idle current under 1 uA, and the 8 GPIO pins accommodate wake-from-touch logic. This combination enables single-chip USB touch-pad, slider, and button interfaces for consumer peripherals, kitchen appliances, and industrial control panels where the small 14-pin TSSOP fits into space-constrained enclosures.
تجویز کردہ
Sensor Hub / Data Logger
The PIC16F1454T-I/ST operates as a USB-tethered sensor hub by polling I2C sensors through its MI2C/SPI master and streaming readings to a host over USB CDC. The 1 KB RAM buffers incoming sensor data while the 14 KB flash holds USB stack and sensor parsing routines. The wide 2.3 V-5.5 V supply range lets the device run from a single 18650 cell, and the XLP sleep modes drop quiescent current to ~20 nA between samples. The 128-byte EEPROM stores calibration constants, and the 8 GPIO pins provide interrupt wake-up lines from external sensors.
تجویز کردہ
Lighting Control (DMX / Custom USB)
For USB-controlled LED lighting, the PIC16F1454T-I/ST receives DMX-over-USB frames via its USB 2.0 module and generates PWM or constant-current drive signals on the GPIO to control LED strings. The 14 KB flash fits a full DMX512 receiver stack plus color-mixing firmware, while the 48 MHz internal oscillator provides accurate 8-bit PWM at typical 1 kHz refresh rates. The industrial -40 C to +85 C temperature grade supports indoor architectural and stage-lighting enclosures, and the small TSSOP-14 footprint enables placement inside dimmer packs and inline controllers.
تجویز کردہ
USB-Based Firmware Update / Bootloader Target
The PIC16F1454T-I/ST can serve as the host-side microcontroller in a USB DFU (Device Firmware Upgrade) bootloader target, leveraging its on-chip USB module to receive new firmware images over USB and self-program its 14 KB flash via the high-endurance Flash (HEF) feature. The 128-byte non-volatile data EEPROM stores bootloader flags and revision counters. The internal 48 MHz oscillator ensures USB timing compliance without external crystals, and the 14-pin TSSOP allows the part to be placed on small accessory boards that only need USB-CDC for firmware updates.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F1454T-I/ST — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F1454-I/ST | PIC16F1455-I/ST | PIC16F1454-E/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 (Tape & Reel) | TSSOP-14 (Tube) - same | TSSOP-14 - same | PDIP-14 - through-hole |
| Flash Memory | 14 KB (8K x 14) | 14 KB (same) | 16 KB (+14%) | 14 KB (same) |
| RAM | 1 KB | 1 KB (same) | 1.4 KB (+40%) | 1 KB (same) |
| EEPROM | 128 B | 128 B (same) | 128 B (same) | 128 B (same) |
| CPU Frequency | 48 MHz | 48 MHz (same) | 48 MHz (same) | 48 MHz (same) |
| USB Module | USB 2.0 FS with clock recovery | USB 2.0 FS with clock recovery (same) | USB 2.0 FS with clock recovery (same) | USB 2.0 FS with clock recovery (same) |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C (same) | Industrial -40 C to +85 C (same) | Extended -40 C to +125 C |
| GPIO Count | 8 | 8 (same) | 8 (same) | 8 (same) |
اہم امتیازی خصوصیات
- On-chip USB 2.0 full-speed with clock recovery (بمقابلہPIC16F1454-I/ST)
- Lowest-pin-count USB MCU in PIC16F145x family (بمقابلہPIC16F1455-I/ST)
- Tape-and-reel packaging for production assembly (بمقابلہPIC16F1454-I/ST)
ڈیزائن نوٹس
Route the USB D+ (RA0/ICSPDAT) and D- (RA1/ICSPCLK) traces as a 90 ohm differential pair with continuous ground reference underneath, kept under 50 mm in length to meet USB 2.0 signal-integrity masks. Place a 0.1 uF decoupling capacitor within 5 mm of the VDD pin and a bulk 10 uF tantalum or ceramic capacitor near the device. The internal 48 MHz oscillator eliminates an external crystal, but still requires clean analog-style layout: keep noisy digital traces (PWM, switching regulators) more than 10 mm away from the oscillator pins and D+/D- pair.
The PIC16F1454T-I/ST draws ~5 mA at full 48 MHz operation and drops to ~20 nA in XLP sleep with peripherals off. For USB bus-powered designs, add a 10 uF bulk capacitor on VBUS to absorb inrush current during enumeration and prevent VBUS sag that can reset the device. The internal regulator derived from VDD supports the 2.3 V-5.5 V range; no separate core voltage rail is needed, simplifying the power tree for 2xAA or single-cell Li-ion battery designs.
Common pitfalls when using PIC16F1454T-I/ST: (1) The ICSPDAT and ICSPCLK pins RA0/RA1 are multiplexed with USB D+/D-, so ICSP programming over the same pins during firmware bring-up requires disconnecting the USB bus to avoid driver conflict. (2) The MCLR pin (RA5) is shared with the MCLR reset; leaving it floating causes erratic resets - always tie RA5 to VDD via a 10 kohm pull-up for normal operation. (3) The 14-pin TSSOP has only 8 usable GPIO, so plan pin allocation early - do not assume all peripherals can coexist simultaneously.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. Lead-free matte-tin finish rated for reflow soldering at peak 260 C for 30 seconds. Not AEC-Q100 qualified - choose a different part for automotive applications. Industrial temperature grade -40 C to +85 C.
