PIC16F1454-E/P - 8-bit 48MHz USB MCU 14KB Flash 14-PDIP | Microchip
MPN: PIC16F1454-E/P β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.2 | $2.20 |
| 10 | $1.98 | $19.80 |
| 100 | $1.76 | $176.00 |
| 500 | $1.54 | $770.00 |
| 1,000 | $1.32 | $1,320.00 |
PIC16F1454-E/P Overview
What is a PIC microcontroller? A PIC microcontroller is a Harvard-architecture, RISC-based 8-bit or 16-bit MCU from Microchip built around a small instruction set (typically 35 instructions) and on-chip Flash program memory. PIC microcontrollers (PIC -> 8-bit MCU -> microcontroller -> embedded IC) are widely used in consumer, industrial, USB, and IoT designs because of their deterministic timing, low power modes, and rich peripheral set including timers, ADC, PWM, comparators, and communication modules like UART, SPI, I2C, and USB.
Key features of the PIC16F1454 include the proprietary eXtreme Low Power (XLP) technology for sleep currents measured in nanoamps, 128 bytes of non-volatile data storage that survives Flash erase cycles, an internal 48 MHz oscillator accurate enough for USB communications, a 10-bit ADC with up to 9 channels, two PWM modules with complementary outputs suitable for power and motor control, and two comparators. The device runs on 2.3V to 5.5V VDD and supports in-circuit serial programming (ICSP) via two pins.
Architecturally, the PIC16F1454 is built on an enhanced mid-range core that delivers 200 ns instruction execution at 20 MHz and 83 ns at 48 MHz, with a 16-level hardware stack. The USB module handles clock recovery, frame timing, packet EOP, and resume signaling in hardware, leaving the CPU free for application code. High-endurance Flash cells rated for 100,000 erase/write cycles make the EEPROM emulation region ideal for storing calibration, configuration, and user data.
Typical applications include low-cost USB HID/CDC devices, USB-to-UART bridges, USB sensor tags, USB charging controllers, low-power wireless sensor nodes, capacitive-touch user interfaces, LED lighting controllers, and small motor drivers for fans and pumps. The PIC16F1454-E/P is the PDIP variant, chosen for hand-built prototypes, educational labs, and low-volume industrial products where through-hole assembly is preferred.
When designing with this part, ensure the VDD decoupling network follows the datasheet recommendation of a 0.1 uF ceramic in parallel with a bulk capacitor placed within a few millimeters of the VDD pin. The USB D+/D- lines require 27 to 33 ohm series resistors and the VUSB pin must be bypassed with a 0.47 uF capacitor per the datasheet reference schematic.
This page synthesizes distributor pricing, drop-in alternatives in the same 14-pin PDIP footprint, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1454-E/P β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F1454-E/P (same form factor and footprint) β differing in Package, ADC, Core Architecture, I/O Pins, MSL Level.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1455-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1455-E/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1454-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | Enhanced mid-range 8-bit PIC16 RISC |
| Instruction Set Width | 14-bit |
| Maximum CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data SRAM | 1024 bytes |
| Data EEPROM / HEF | 256 bytes (high-endurance Flash, 100k cycles) |
| I/O Pins | 12 |
| ADC | 10-bit, up to 9 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| PWM Outputs | 2 modules with complementary outputs |
| Comparators | 2 |
| USB Module | USB 2.0 full-speed device with internal clock recovery |
| Serial Interfaces | MSSP (SPI/I2C), EUSART (UART) |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Low-Power Technology | XLP (nanoWatt XLP), sleep < 50 nA typical |
| Package | 14-pin PDIP (P) |
| Operating Temperature Range | -40 C to +125 C (E = extended) |
| Programming Interface | ICSP (in-circuit serial programming) via PGED/PGEC pins |
| RoHS Status | Compliant (PDIP lead-free finish variant) |
PIC16F1454-E/P Pin Configuration
| Pin 1 | VDD β Positive supply voltage (2.3 V to 5.5 V) |
| Pin 2 | RA5 β Bidirectional I/O, digital-only |
| Pin 3 | RA4 β Bidirectional I/O with weak pull-up |
| Pin 4 | RA3/MCLR/VPP β Bidirectional I/O / Master Clear reset (active-low) / ICSP VPP |
| Pin 5 | RC5 β Bidirectional I/O / USB D- (USB module alternate) |
| Pin 6 | RC4 β Bidirectional I/O / USB D+ (USB module alternate) |
| Pin 7 | RC3 β Bidirectional I/O / SCL (MSSP I2C) / SS (SPI slave select) |
| Pin 8 | RC2 β Bidirectional I/O / CCP1 PWM output |
| Pin 9 | RC1 β Bidirectional I/O / CCP2 PWM output |
| Pin 10 | RC0 β Bidirectional I/O / SO (SPI serial data out) |
| Pin 11 | RA1/ICSPCLK β Bidirectional I/O / ICSP clock programming pin |
| Pin 12 | RA0/ICSPDAT β Bidirectional I/O / ICSP data programming pin |
| Pin 13 | VSS β Ground reference |
| Pin 14 | RA2 β Bidirectional I/O / analog input AN2 |
Typical Applications
PIC16F1454-E/P is suitable for 7 applications: USB HID Device (Keyboard / Mouse / Consumer Control), USB-to-UART Bridge / CDC Virtual COM Port, Low-Power Wireless Sensor Node (with External Radio), Capacitive Touch User Interface (Buttons / Sliders), LED Lighting Controller (DMX / PWM Dimming), Small DC Motor or Fan Speed Controller, USB Charging Controller / Power Bank Monitor.
USB HID Device (Keyboard / Mouse / Consumer Control)
Why the PIC16F1454-E/P fits USB HID designs: the on-chip USB 2.0 full-speed device module with internal clock recovery eliminates the external crystal on a 14-pin PDIP board, freeing both I/O for the scan matrix. The 14 KB Flash holds USB descriptors and HID report structures, while 1 KB SRAM is sufficient for keyboard rollover buffers. How it is used and performance consideration: the PIC enumerates as an HID class device, runs interrupt-driven USB stack in the background, and sleeps at <1 uA between key events. Compared to bit-bang USB on cheaper MCUs the hardware module provides deterministic latency and full USB compliance. Pair the MCU with a 27 to 33 ohm series resistor on D+/D- and a 0.47 uF bypass on VUSB per the datasheet reference schematic.
Recommended
USB-to-UART Bridge / CDC Virtual COM Port
Why the PIC16F1454-E/P fits USB-to-UART bridge designs: the integrated USB device module and EUSART peripheral provide a hardware path for CDC class enumeration and asynchronous serial communication. The 14 KB Flash is enough for the Microchip CDC stack plus application logic, and 1 KB SRAM handles 64-byte USB packet buffers without overflow. How it is used and performance consideration: the MCU enumerates as a virtual COM port at 12 Mbps full-speed, configurable baud rates up to 1 Mbaud. Compared to FTDI bridge ICs the PIC16F1454 solution is lower cost and field-upgradable over USB. Use a 1 kohm pull-up on D- and route D+/D- as a 90-ohm differential pair per USB 2.0 spec.
Recommended
Low-Power Wireless Sensor Node (with External Radio)
Why the PIC16F1454-E/P fits low-power wireless sensor nodes: XLP nanoWatt technology drops sleep current to under 50 nA typical, so a battery-powered node can sleep between transmissions and run for years on a coin cell. The 14 KB Flash stores application code plus sensor calibration tables in HEF, and the 10-bit ADC reads analog sensor outputs at up to 100 ksps. How it is used and performance consideration: the MCU wakes on a timer interrupt, samples the sensor, transmits via an external SPI radio like the nRF24L01, and returns to sleep. Compared to 32-bit ARM Cortex-M0 alternatives the PIC16F1454 uses less active current at the cost of slower arithmetic. Verify that the radio's SPI lines map to the PIC MSSP pins.
Recommended
Capacitive Touch User Interface (Buttons / Sliders)
Why the PIC16F1454-E/P fits capacitive touch interfaces: the mTouch peripheral library and on-chip comparators implement up to 12 capacitive sense channels, eliminating dedicated touch ICs. The 14 KB Flash holds the mTouch firmware plus the USB HID stack if reporting touches over USB, and 1 KB SRAM is adequate for sliding average filters. How it is used and performance consideration: the MCU scans the touch electrodes through the on-chip charge-time measurement, debounces the touches in software, and reports HID events over USB. Compared to dedicated touch controllers the integrated approach saves BOM cost. Place 100 pF to 220 pF bypass capacitors close to each electrode connector and route traces as guarded differential pairs.
Recommended
LED Lighting Controller (DMX / PWM Dimming)
Why the PIC16F1454-E/P fits LED lighting controllers: the two PWM modules with complementary outputs and a 10-bit ADC form a complete constant-current LED driver controller. 14 KB Flash holds DMX-512 or DALI receive plus PWM calibration, and the 1 KB SRAM buffers DMX universes. How it is used and performance consideration: the MCU receives DMX over the EUSART UART, decodes the address byte, sets the duty cycle on the PWM outputs, and reads back LED current via the ADC for closed-loop regulation. Compared to discrete PWM ICs the integrated approach saves parts and adds diagnostics. Ensure VDD decoupling meets the datasheet 0.1 uF + bulk capacitor recommendation and route the PWM outputs away from the ADC analog inputs.
Recommended
Small DC Motor or Fan Speed Controller
Why the PIC16F1454-E/P fits small DC motor and fan speed controllers: the two PWM outputs drive MOSFET half-bridges through gate drivers, and the 10-bit ADC reads back the back-EMF or tachometer signal. XLP low-power modes allow standby current below 100 nA when the motor is off. How it is used and performance consideration: the MCU closes the speed-control loop via PID in software, switches the PWM duty cycle to maintain RPM setpoint, and enters sleep on command. Compared to dedicated motor control ICs the PIC16F1454 solution is more flexible. Add a 100 nF ceramic bypass on VDD and a flyback diode across the motor winding for inductive kick protection.
Recommended
USB Charging Controller / Power Bank Monitor
Why the PIC16F1454-E/P fits USB charging controllers: the USB module detects VBUS insertion/removal events in hardware, and the 10-bit ADC reads battery voltage, charge current, and temperature thermistor inputs. 14 KB Flash is sufficient for CC/CV charge profile firmware plus USB-CDP enumeration, and HEF stores charge cycle counters. How it is used and performance consideration: the MCU implements a state machine for precharge/constant-current/constant-voltage charging, displays status on LEDs via PWM, and reports status over USB CDC. Compared to standalone charger ICs the integrated approach adds diagnostic and host-report features. Add a 4.7 kohm pull-up on D- for USB device-mode signaling per the USB 2.0 spec.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1454-E/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1455-I/P | PIC16F1455-E/P | PIC16F1454-I/P | PIC16LF1454-I/P | PIC16F1459-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin PDIP | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 20-pin PDIP |
| Program Flash | 14 KB | 8 KB | 8 KB | 14 KB | 14 KB | 16 KB |
| Data SRAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Data EEPROM / HEF | 256 bytes HEF | 256 bytes HEF | 256 bytes HEF | 256 bytes HEF | 256 bytes HEF | 256 bytes HEF |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (extended) | -40 C to +85 C (industrial) | -40 C to +125 C (extended) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| USB Module | Full-speed device, internal clock recovery | Full-speed device, internal clock recovery | Full-speed device, internal clock recovery | Full-speed device, internal clock recovery | Full-speed device, internal clock recovery | Full-speed device, internal clock recovery |
| Approx Unit Price @1k | USD 1.32 | USD 1.18 (est., lower Flash) | USD 1.22 (est.) | USD 1.30 (est., industrial grade) | USD 1.36 (est.) | USD 1.42 (est., larger Flash) |
Key Differentiators
- Maximum Flash memory in a 14-pin USB PIC (vs PIC16F1455-I/P)
- Extended temperature grade for harsh environments (vs PIC16F1454-I/P)
- In-chip USB clock recovery eliminates crystal (vs PIC16F1459-I/P (20-pin variant) and most competing 8-bit USB MCUs)
- Highest endurance data storage in the family (vs PIC16LF1454-I/P)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor as close as physically possible to the VDD pin (pin 1), and add a 10 uF bulk tantalum or aluminum capacitor on the same supply rail within 25 mm. The USB VUSB pin requires its own 0.47 uF bypass capacitor to VSS per the datasheet reference design. Inadequate decoupling is the most common cause of USB enumeration failures and brown-out resets in PIC16F1454 designs. Estimated: with a 0.1 uF X7R ceramic and 0.47 uF on VUSB the supply ripple stays below 50 mVpp under worst-case USB suspend/resume transitions.
Route the USB D+ and D- traces as a 90-ohm differential pair with matched length within 150 mil, and place the 27 to 33 ohm series resistors as close to the PIC16F1454 D+/D- pins (RC4/RC5) as possible. Keep the pair away from switching signals such as the PWM outputs, and route a continuous ground plane underneath. For a two-layer board dedicate the bottom layer to ground and stitch vias along the USB pair. The datasheet reference schematic shows the minimum recommended passives.
Do not tie MCLR/RA3 directly to VDD without a pull-up or to ground directly without a series resistor; an unconnected MCLR pin can float and cause spurious resets. Always configure the Configuration Word CP_OFF or appropriate code-protect bit to match production requirements. When using ICSP, never populate capacitors on PGDAT/ICSPCLK (RA0/RA1) that exceed 100 pF because the programmer cannot drive heavier loads. When migrating firmware from PIC16F1455 to PIC16F1454, verify the larger Flash space does not hide linker section placement errors that ran silently on the smaller part.
Estimated: at 48 MHz Fosc the internal instruction cycle is 83 ns and the MSSP SPI module can sustain about 12 Mbps reliably, but USB full-speed (12 Mbps) demands that the USB module clock come from the 48 MHz internal oscillator with on-chip clock recovery, not from an external crystal unless the datasheet explicitly approves it for your PCB layout. For long-trace analog sensor inputs on RA0-RA2 place a 100 ohm series resistor at the pin to dampen ringing, and use the on-chip ADC acquisition time of at least 4 us ADAC for 10-bit accuracy at 25 C.
Estimated: at maximum 48 MHz Fosc, 5.5 V VDD, all peripherals enabled, the PIC16F1454-E/P core current is approximately 8 mA, giving power dissipation of 44 mW and a junction temperature rise of about 5 C above ambient on a 14-pin PDIP (theta_JA approximately 70 C/W with copper pour, 110 C/W without). The -E grade is rated to +125 C, so no thermal shutdown is needed for normal operation. If the application drives high current loads from the I/O pins, derate to a maximum of 20 mA per pin per the absolute maximum ratings in the datasheet.
Compliance Information
RoHS and REACH compliance per Microchip product page. The -E extended grade is not AEC-Q100 qualified; for AEC-Q100 automotive applications contact Microchip for PIC16F1454-E/PVAO factory-programmed parts.
