PIC18F47J53T-I/ML - 8-bit 48MHz 128KB Flash USB MCU | Microchip
MPN: PIC18F47J53T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.4 | $6.40 |
| 10 | $5.95 | $59.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $3.95 | $3,950.00 |
PIC18F47J53T-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and configurable peripherals. The PIC18F47J53 belongs to Microchip's PIC18J XLP family of 8-bit microcontrollers, an architecture descended from the PIC16 baseline and optimized for ultra-low-power operation (eXtreme Low Power, XLP) while still delivering the throughput and peripheral set needed for USB-equipped embedded designs. Within the broader taxonomy, it sits as: 8-bit MCU -> PIC microcontroller -> RISC microcontroller -> embedded processor -> semiconductor IC.
Key features include: 128 KB (64K x 16) Flash, 4 KB RAM, 12 MIPS throughput at 48 MHz, 12-bit ADC, on-chip full-Speed USB 2.0 transceiver with internal pull-ups and dedicated DMA, two USART modules, two MSSP (SPI/I2C) modules, an RTCC, deep-sleep current of roughly 100 nA, and CTMU charge-time measurement support. The QFN-44 package (8x8 mm) with an exposed pad gives a low thermal resistance and short bond-wire lengths, which is essential when the on-chip USB transceiver's VBUS sense pin and the ADC reference pin are used together for temperature or touch-sensing applications.
The architecture is a Harvard RISC core with a 16-bit instruction word and 8-bit data path, a hardware multiply, and a peripheral pin-select (PPS) routing matrix that remaps digital peripheral signals to a wide range of I/O pins. The USB module is OTG-capable and supports low-speed, full-speed, and a software-only high-speed (via external PHY) path, with up to 7 bidirectional endpoints plus a dedicated control endpoint.
Typical applications include USB-to-UART bridges, USB HID / CDC / MSD peripherals, low-cost data loggers, sensor hubs, automotive body controllers (AEC-Q100 qualified), capacitive-touch user interfaces via CTMU, and battery-powered consumer devices where the deep-sleep current budget matters. The 12-bit ADC and CTMU pair well with thermistor or capacitive-touch front-ends.
When designing with this part, follow Microchip's supply-pin decoupling guidance: place a 0.1 uF ceramic on every VDD/VSS pair as close to the package as possible, keep the USB DP/DM trace lengths matched within 150 mil, and tie the exposed pad (EP) to the analog ground plane with multiple thermal-relief vias. The internal 3.3V LDO must not be loaded by external circuitry.
Drop-in alternatives for PIC18F47J53T-I/ML — 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 PIC18F47J53T-I/ML (same form factor and footprint) — differing in ADC, Communication, Timers, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F47J53-I/ML
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →PIC18F46J53T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F45J11T-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.2 / Unit
View Datasheet →PIC18F46K80T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F46K42T-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.04 / Unit
View Datasheet →PIC18F47J53T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC, Harvard) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB |
| Maximum CPU Frequency | 48 MHz |
| Throughput | 12 MIPS |
| Operating Voltage Range | 2.5V / 3.3V nominal (2.0V-3.6V) |
| Package | 44-pin QFN (8x8 mm) with exposed pad (ML) |
| Package Type | Surface Mount (QFN EP, Tape & Reel) |
| USB Module | USB 2.0 Full-Speed, OTG-capable, internal pull-ups |
| ADC | 12-bit, multi-channel |
| ADC Channels | 13 channels (per datasheet family) |
| Timers | Multiple 8/16-bit timers, RTCC |
| Communication | 2x USART, 2x MSSP (SPI/I2C), USB |
| Temperature Range (I grade) | -40C to +85C (Industrial) |
| AEC-Q100 Qualification | Qualified (Automotive grade) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F47J53T-I/ML Pin Configuration
| Pin 1 | RB5/KBI1/PGM — I/O port B bit 5 / keyboard interrupt / LVP programming |
| Pin 2 | RB4/KBI0 — I/O port B bit 4 / keyboard interrupt |
| Pin 3 | RB3/AN9/C1IN+/CTED1/RTCC — I/O port B bit 3 / ADC ch 9 / comparator input / CTMU / RTCC output |
| Pin 4 | RB2/AN8/C1IN-/CTED0 — I/O port B bit 2 / ADC ch 8 / comparator input / CTMU |
| Pin 5 | RB1/AN10/C1INC/CTED12/RP9 — I/O port B bit 1 / ADC ch 10 / comparator / CTMU / PPS remappable |
| Pin 6 | RB0/AN12/C1IND/CTED11/RP8 — I/O port B bit 0 / ADC ch 12 / comparator / CTMU / PPS remappable |
| Pin 7 | VDD — Digital supply voltage (2.0V-3.6V) |
| Pin 8 | VSS — Digital ground |
| Pin 9 | RC7/AN21/RX1/DT1 — I/O port C bit 7 / ADC ch 21 / USART1 RX |
| Pin 10 | RC6/AN20/TX1/CK1 — I/O port C bit 6 / ADC ch 20 / USART1 TX |
| Pin 11 | RC5/D-/VP — USB D-minus / programming voltage (legacy) |
| Pin 12 | RC4/D+/VM — USB D-plus / voltage monitor |
| Pin 13 | RC3/AN19/SCL1/SCK2 — I/O port C bit 3 / ADC ch 19 / I2C1 clock / SPI2 clock |
| Pin 14 | RC2/AN18/SDA1/SDI2 — I/O port C bit 2 / ADC ch 18 / I2C1 data / SPI2 data in |
| Pin 15 | RC1/AN17/C2OUT — I/O port C bit 1 / ADC ch 17 / comparator 2 output |
| Pin 16 | RC0/AN16/C2IN+/VREF+ — I/O port C bit 0 / ADC ch 16 / comparator 2 input / ADC VREF+ |
| Pin 17 | VUSB — USB internal transceiver supply (3.3V LDO output) |
| Pin 18 | VBUS — USB VBUS sense input (5V tolerant) |
| Pin 19 | VSS — Digital ground |
| Pin 20 | VDD — Digital supply voltage |
| Pin 21 | RA7/OSC1/CLKI — I/O port A bit 7 / crystal oscillator input |
| Pin 22 | RA6/OSC2/CLKO — I/O port A bit 6 / crystal oscillator output |
| Pin 23 | RA5/AN4/C2IN-/SS1/HLVDIN/RP2 — I/O port A bit 5 / ADC ch 4 / SPI1 slave select |
| Pin 24 | RA4/AN3/C1IN-/SDO2/RP3 — I/O port A bit 4 / ADC ch 3 / SPI2 data out |
| Pin 25 | RA3/AN2/C1IN+/VREF-/RP4 — I/O port A bit 3 / ADC ch 2 / ADC VREF- / PPS remappable |
| Pin 26 | RA2/AN2/C2IN+ — I/O port A bit 2 / ADC ch 2 / comparator 2 input |
| Pin 27 | RA1/AN1/C1INC — I/O port A bit 1 / ADC ch 1 |
| Pin 28 | RA0/AN0/C1IND — I/O port A bit 0 / ADC ch 0 |
| Pin 29 | VDD — Digital supply voltage |
| Pin 30 | VSS — Digital ground |
| Pin 31 | RF7/AN13/SS2 — I/O port F bit 7 / ADC ch 13 / SPI2 slave select |
| Pin 32 | RF6/AN11/C1OUT — I/O port F bit 6 / ADC ch 11 / comparator 1 output |
| Pin 33 | RF5/AN10/C2IN- — I/O port F bit 5 / ADC ch 10 / comparator input |
| Pin 34 | RF4/AN9 — I/O port F bit 4 / ADC ch 9 |
| Pin 35 | RF3/AN8 — I/O port F bit 3 / ADC ch 8 |
| Pin 36 | RF2/AN7 — I/O port F bit 2 / ADC ch 7 |
| Pin 37 | RF1/AN6/C2IN+ — I/O port F bit 1 / ADC ch 6 |
| Pin 38 | RF0/AN5 — I/O port F bit 0 / ADC ch 5 |
| Pin 39 | RD7/PSP7 — I/O port D bit 7 / parallel slave port |
| Pin 40 | RD6/PSP6 — I/O port D bit 6 / parallel slave port |
| Pin 41 | RD5/PSP5 — I/O port D bit 5 / parallel slave port |
| Pin 42 | RD4/PSP4 — I/O port D bit 4 / parallel slave port |
| Pin 43 | RC7 — I/O port C bit 7 (secondary function mapping) |
| Pin 44 | VSS — Digital ground |
| Pin 45 | EP — Exposed thermal pad - tie to analog ground with multiple vias |
Typical Applications
PIC18F47J53T-I/ML is suitable for 7 applications: USB-to-UART Bridge, USB HID Sensor Peripheral, Automotive Body Controller (AEC-Q100), Battery-Powered Data Logger, Capacitive-Touch User Interface (CTMU), USB Mass-Storage Device, Industrial Sensor Hub with USB Diagnostics.
USB-to-UART Bridge
The PIC18F47J53T-I/ML is an ideal USB-to-UART bridge controller. Its integrated full-Speed USB 2.0 transceiver with internal pull-ups eliminates external USB components, while the 48 MHz CPU provides 12 MIPS to run the CDC class driver plus UART handling. The 128 KB Flash accommodates the Microchip USB stack, CDC ACM driver, and application logic. Place the part between the host USB port and the downstream UART, with a 0.1 uF decoupling capacitor on each VDD/VSS pair. Versus a discrete FTDI-style bridge, the PIC18F47J53T-I/ML gives firmware-side customization (custom VID/PID, vendor commands) at a lower BOM cost. Trade-off: USB only supports full-speed (12 Mbps), not high-speed.
Recommended
USB HID Sensor Peripheral
For USB HID sensor peripherals (custom joysticks, industrial input devices, laboratory instruments), the PIC18F47J53T-I/ML delivers 12 MIPS at 48 MHz plus a 12-bit ADC and CTMU for capacitive-touch or resistive-sensor front-ends. The 128 KB Flash fits the HID stack, sensor-fusion logic, and USB descriptor tables; the 4 KB RAM holds HID report buffers. Pin-select (PPS) routing lets the designer reassign ADC channels and communication peripherals without PCB changes. Compared to a Cortex-M0 + external PHY, this single-chip solution reduces BOM and PCB area. The exposed-pad QFN thermal performance supports sustained USB VBUS-powered operation. Limitation: 12-bit ADC rather than the 16-bit available on some newer PIC24 parts.
Recommended
Automotive Body Controller (AEC-Q100)
The PIC18F47J53T-I/ML is AEC-Q100 qualified, making it suitable for automotive body controllers, USB accessory ports, and sensor hubs. Operating from 2.0V-3.6V it tolerates load-dump transients when paired with an external TVS and regulator, and the -40C to +85C industrial temperature range covers cabin and underhood-adjacent placements. The on-chip USB supports infotainment accessories; the 12-bit ADC and CTMU handle capacitive-touch HMI panels. The 44-QFN (8x8 mm) with exposed pad keeps PCB area tight. Trade-off: for underhood deployments above +85C the user must select AEC-Q100 Grade 0/1 parts explicitly; the -I/ML grade covers cabin-class temperatures.
Recommended
Battery-Powered Data Logger
For battery-powered data loggers the PIC18F47J53T-I/ML's XLP (eXtreme Low Power) deep-sleep current in the nanoampere range extends coin-cell life. The 128 KB Flash logs years of timestamped sensor data, while the 12-bit ADC samples thermistors, batteries, or external sensors through CTMU charge-time measurement. The MCU wakes on RTCC alarm, samples, writes to internal Flash, and returns to deep-sleep, all at <1 uA average. The USB port doubles as the data offload and battery-charging interface. Compared to a Cortex-M0+ design, the PIC18J sleep current is competitive and the integrated USB saves an external PHY. Limitation: writing to internal Flash draws significant current per page; design firmware to write in bursts.
Recommended
Capacitive-Touch User Interface (CTMU)
The PIC18F47J53T-I/ML integrates the CTMU (Charge-Time Measurement Unit) for capacitive-touch buttons, sliders, and proximity sensors. The CTMU converts capacitance to time, measured against a precision current source and timer, with no external analog front-end beyond the touch pad itself. The 12 MIPS CPU runs touch-decoding algorithms in firmware while keeping total BOM to one IC plus the touch PCB. The 128 KB Flash accommodates 16+ buttons, sliders, and gesture decoding. The 12-bit ADC handles backup resistive or analog readings. Trade-off: touch firmware is sensitive to PCB layout; follow Microchip AN1250 for pad geometry and grounding.
Recommended
USB Mass-Storage Device
Implement a USB mass-storage (MSD) device using the PIC18F47J53T-I/ML and an external SPI Flash or SD card. The integrated USB full-speed and dual MSSP (SPI/I2C) modules give one SPI bus for SD-card access plus a second SPI/I2C bus for sensors or display. 128 KB Flash fits Microchip's MSD stack plus FAT file-system glue; 4 KB RAM handles sector buffers. The 48 MHz CPU sustains 12 Mbps USB throughput with simultaneous SD-card reads. Trade-off: full-speed USB caps throughput at ~1 MB/s; for higher-speed storage applications consider a Cortex-M part with USB high-speed PHY.
Recommended
Industrial Sensor Hub with USB Diagnostics
The PIC18F47J53T-I/ML is well suited as an industrial sensor hub that aggregates analog/digital sensors and exposes them via USB. The 12-bit ADC with multi-channel input supports thermistor, pressure-sensor, and 4-20 mA transducer front-ends; the USART and MSSP modules connect to UART-based sensors, SPI ADCs, or I2C peripherals. The USB port provides both configuration access and real-time data streaming to a host PC. AEC-Q100 qualification plus the industrial temperature range make it deployable in factory environments. Trade-off: 8-bit CPU limits complex DSP; for FFT or high-rate vibration analysis move to dsPIC33 or Cortex-M4.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F47J53T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F47J53-I/ML | PIC18F46J53T-I/ML | PIC18F45J11T-I/ML | PIC18F46K80T-I/ML | PIC18F46K42T-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm, ML) | 44-QFN (8x8 mm, ML) - same | 44-QFN (8x8 mm, ML) - same | 44-QFN (8x8 mm, ML) - same | 44-QFN (8x8 mm, ML) - same | 44-QFN (8x8 mm, ML) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB - identical | 64 KB (-50%) | 32 KB (-75%) | 64 KB (-50%) | 64 KB (-50%) |
| RAM | 4 KB | 4 KB - identical | 4 KB - identical | 3.8 KB - similar | 3.6 KB - similar | 2 KB - lower |
| CPU Frequency | 48 MHz (12 MIPS) | 48 MHz - identical | 48 MHz - identical | 48 MHz - identical | 64 MHz - higher | 64 MHz - higher |
| Integrated USB | Yes (USB 2.0 Full-Speed) | Yes - identical | Yes - identical | Yes - identical | No (CAN instead) | No |
| ADC | 12-bit | 12-bit - identical | 12-bit - identical | 12-bit - identical | 12-bit - identical | 12-bit - identical |
| AEC-Q100 Qualified | Yes | Yes - identical | Yes | Yes | Yes | Yes |
Key Differentiators
- Largest Flash in the 44-QFN PIC18J USB family (vs PIC18F46J53T-I/ML)
- Integrated full-Speed USB vs CAN-only alternative (vs PIC18F46K80T-I/ML)
- Same 44-QFN footprint across density steps (vs PIC18F45J11T-I/ML)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor on every VDD/VSS pair as close to the package pin as possible (within 2 mm). Add a bulk 10 uF tantalum or ceramic on the main 3.3V rail. The on-chip 3.3V LDO must not be loaded by external circuitry other than the VUSB pin's internal transceiver; do not draw external current from VUSB.
The exposed thermal pad (EP, pin 45) must be soldered to a copper pad tied to the analog ground plane with multiple thermal-relief vias (4-8 vias recommended). Match USB DP/DM trace lengths within 150 mil, maintain 90-ohm differential impedance, and keep the D+/D- traces away from high-frequency switching nodes. Place the crystal within 5 mm of OSC1/OSC2 with a guard ground ring.
Do not load the internal VUSB LDO output with external circuitry - it is sized only for the USB transceiver. When using the ADC, ensure the AVDD supply is decoupled separately and that the VREF+ pin is not left floating. CTMU touch-sensing is sensitive to PCB layout; follow Microchip AN1250 (Capacitive Touch Sensing) for pad geometry, ground floods, and software calibration. Firmware writing to internal Flash draws significant current per page; design deep-sleep duty cycles accordingly.
Compliance Information
AEC-Q100 qualified per Microchip product page and Arrow listing. RoHS and REACH compliant per Microchip material declaration. Halogen-free per datasheet marking.
