PIC18F97J94T-I/PT - 8-Bit 64MHz 128KB Flash USB/LCD MCU | Microchip
MPN: PIC18F97J94T-I/PT ✓ AktifPIC18F97J94T-I/PT Ringkasan
What is a PIC18 microcontroller? The PIC18 family is Microchip's high-end 8-bit RISC architecture, designed around an enhanced Harvard bus with separate program and data paths. These devices combine easy-to-program flash memory, rich peripheral integration (USB, LCD, ADC, comparators, PWM), and ultra-low-power nanoWatt XLP technology that delivers sleep currents below 1 uA. PIC18 microcontrollers sit between simple PIC16 parts and 16-bit dsPIC/PIC24 devices, serving cost-sensitive embedded applications that need more memory, code space, and I/O than entry-level 8-bit MCUs but do not require a 32-bit core.
Key differentiating features of the PIC18F97J94 include integrated USB 2.0 full-speed (12 Mbps) device/host/OTG, a segmented LCD driver supporting up to 480 segments, nanoWatt XLP low-power modes, and the largest flash density (128 KB) ever offered in an 8-bit PIC at the time of release. The 100-pin TQFP exposes up to 70 I/O pins, two MSSP (SPI/I2C), two EUSART, a 12-bit ADC with up to 16 channels, and multiple timers.
Technically, the part operates from 2.0 V to 3.6 V, executes instructions at 64 MHz (16 MIPS, 200 ns per instruction), and supports in-circuit serial programming (ICSP) plus self-programmability. The internal 31 kHz low-power oscillator and the 8 MHz internal RC provide flexible clocking without external crystals. The hardware LCD controller can drive glass with 4 common, 8 common, or higher multiplex schemes.
Typical applications include USB peripherals, e-metering, medical instrumentation with LCD, consumer appliances, white goods, and industrial control panels that benefit from on-chip segmented LCD and USB connectivity in a single 8-bit solution.
When designing with this part, ensure the 2.0 V to 3.6 V supply rail is well-decoupled and that the AVDD/AVSS pair is tied to clean analog supply to maximize ADC performance. The 100-pin TQFP land pattern requires standard SMT reflow up to 260C peak per JEDEC J-STD-020.
This page synthesizes distributor pricing, 100-pin TQFP drop-in alternatives from the same PIC18F family, and practical design notes not found in the manufacturer datasheet.
Alternatif penggantian untuk PIC18F97J94T-I/PT — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC18F97J94T-I/PT (sama faktor bentuk dan footprint) — berbeda di dalam Package, I/O Pins, Operating Temperature, ADC, Timers.
PIC18F97J94-I/PT
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC18F96J94T-I/PF
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F87J72-I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F86J72T-I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F8723-I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F97J94T-I/PT Rating Maksimal & Karakteristik Listrik
| Core | PIC18 (8-bit RISC, Harvard) |
| CPU Speed | 64 MHz / 16 MIPS |
| Program Memory | 128 KB Flash (64K x 16) |
| RAM | 4 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| Suhu Kerja | -40C to +85C (Industrial) |
| I/O Pins | Up to 70 |
| Paket | 100-pin TQFP (PT) 12x12x1 mm |
| LCD Segments | Up to 480 |
| USB | USB 2.0 Full-Speed Device/Host/OTG (12 Mbps) |
| ADC | 10/12-bit, up to 16 channels |
| Timers | Multiple 8/16-bit |
| Communication | 2x MSSP (SPI/I2C), 2x EUSART |
| Low-Power Technology | nanoWatt XLP |
| Tipe Mounting | Surface Mount (Tape & Reel) |
Konfigurasi Pin PIC18F97J94T-I/PT
| Pin produk 1 | RG0 — PORTG bit 0 / LCD segment |
| Pin produk 2 | RG1 — PORTG bit 1 / LCD segment |
| Pin produk 3 | RG2 — PORTG bit 2 / LCD segment |
| Pin produk 4 | RG3 — PORTG bit 3 / LCD segment |
| Pin produk 5 | RG4 — PORTG bit 4 / LCD segment |
| Pin produk 6 | VDD — Positive supply |
| Pin produk 7 | VSS — Ground reference |
| Pin produk 8 | RG5 — PORTG bit 5 / LCD segment |
| Pin produk 9 | RG6 — PORTG bit 6 / LCD segment |
| Pin produk 10 | RG7 — PORTG bit 7 / LCD segment |
| Pin produk 11 | RF0 — PORTF bit 0 / LCD segment |
| Pin produk 12 | RF1 — PORTF bit 1 / LCD segment |
| Pin produk 13 | RF2 — PORTF bit 2 / LCD segment |
| Pin produk 14 | RF3 — PORTF bit 3 / LCD segment |
| Pin produk 15 | RF4 — PORTF bit 4 / LCD segment |
| Pin produk 16 | RF5 — PORTF bit 5 / LCD segment |
| Pin produk 17 | RF6 — PORTF bit 6 / LCD segment |
| Pin produk 18 | RF7 — PORTF bit 7 / LCD segment |
| Pin produk 19 | AVDD — Analog positive supply |
| Pin produk 20 | AVSS — Analog ground |
| Pin produk 21 | RA0 — PORTA bit 0 / analog |
| Pin produk 22 | RA1 — PORTA bit 1 / analog |
| Pin produk 23 | RA2 — PORTA bit 2 / analog |
| Pin produk 24 | RA3 — PORTA bit 3 / analog |
| Pin produk 25 | RA4 — PORTA bit 4 |
| Pin produk 26 | RA5 — PORTA bit 5 |
| Pin produk 27 | RA6 — PORTA bit 6 / oscillator |
| Pin produk 28 | RA7 — PORTA bit 7 / oscillator |
| Pin produk 29 | RB0 — PORTB bit 0 / programming |
| Pin produk 30 | RB1 — PORTB bit 1 |
| Pin produk 31 | RB2 — PORTB bit 2 |
| Pin produk 32 | RB3 — PORTB bit 3 |
| Pin produk 33 | RB4 — PORTB bit 4 |
| Pin produk 34 | RB5 — PORTB bit 5 / programming |
| Pin produk 35 | RB6 — PORTB bit 6 / programming |
| Pin produk 36 | RB7 — PORTB bit 7 / programming |
| Pin produk 37 | RC0 — PORTC bit 0 |
| Pin produk 38 | RC1 — PORTC bit 1 |
| Pin produk 39 | RC2 — PORTC bit 2 |
| Pin produk 40 | RC3 — PORTC bit 3 |
| Pin produk 41 | RC4 — PORTC bit 4 |
| Pin produk 42 | RC5 — PORTC bit 5 |
| Pin produk 43 | RC6 — PORTC bit 6 / TX |
| Pin produk 44 | RC7 — PORTC bit 7 / RX |
| Pin produk 45 | RD0 — PORTD bit 0 |
| Pin produk 46 | RD1 — PORTD bit 1 |
| Pin produk 47 | RD2 — PORTD bit 2 |
| Pin produk 48 | RD3 — PORTD bit 3 |
| Pin produk 49 | RD4 — PORTD bit 4 |
| Pin produk 50 | RD5 — PORTD bit 5 |
| Pin produk 51 | RD6 — PORTD bit 6 |
| Pin produk 52 | RD7 — PORTD bit 7 |
| Pin produk 53 | RE0 — PORTE bit 0 |
| Pin produk 54 | RE1 — PORTE bit 1 |
| Pin produk 55 | RE2 — PORTE bit 2 |
| Pin produk 56 | RE3 — PORTE bit 3 |
| Pin produk 57 | RE4 — PORTE bit 4 |
| Pin produk 58 | RE5 — PORTE bit 5 |
| Pin produk 59 | RE6 — PORTE bit 6 |
| Pin produk 60 | RE7 — PORTE bit 7 |
| Pin produk 61 | VDD — Positive supply |
| Pin produk 62 | VSS — Ground reference |
| Pin produk 63 | RH0 — PORTH bit 0 / LCD segment |
| Pin produk 64 | RH1 — PORTH bit 1 / LCD segment |
| Pin produk 65 | RH2 — PORTH bit 2 / LCD segment |
| Pin produk 66 | RH3 — PORTH bit 3 / LCD segment |
| Pin produk 67 | RH4 — PORTH bit 4 / LCD segment |
| Pin produk 68 | RH5 — PORTH bit 5 / LCD segment |
| Pin produk 69 | RH6 — PORTH bit 6 / LCD segment |
| Pin produk 70 | RH7 — PORTH bit 7 / LCD segment |
| Pin produk 71 | RJ0 — PORTJ bit 0 / LCD segment |
| Pin produk 72 | RJ1 — PORTJ bit 1 / LCD segment |
| Pin produk 73 | RJ2 — PORTJ bit 2 / LCD segment |
| Pin produk 74 | RJ3 — PORTJ bit 3 / LCD segment |
| Pin produk 75 | RJ4 — PORTJ bit 4 / LCD segment |
| Pin produk 76 | RJ5 — PORTJ bit 5 / LCD segment |
| Pin produk 77 | RJ6 — PORTJ bit 6 / LCD segment |
| Pin produk 78 | RJ7 — PORTJ bit 7 / LCD segment |
| Pin produk 79 | RK0 — PORTK bit 0 / LCD segment |
| Pin produk 80 | RK1 — PORTK bit 1 / LCD segment |
| Pin produk 81 | RK2 — PORTK bit 2 / LCD segment |
| Pin produk 82 | RK3 — PORTK bit 3 / LCD segment |
| Pin produk 83 | RK4 — PORTK bit 4 / LCD segment |
| Pin produk 84 | RK5 — PORTK bit 5 / LCD segment |
| Pin produk 85 | RK6 — PORTK bit 6 / LCD segment |
| Pin produk 86 | RK7 — PORTK bit 7 / LCD segment |
| Pin produk 87 | RL0 — PORTL bit 0 / LCD segment |
| Pin produk 88 | RL1 — PORTL bit 1 / LCD segment |
| Pin produk 89 | RL2 — PORTL bit 2 / LCD segment |
| Pin produk 90 | RL3 — PORTL bit 3 / LCD segment |
| Pin produk 91 | RL4 — PORTL bit 4 / LCD segment |
| Pin produk 92 | RL5 — PORTL bit 5 / LCD segment |
| Pin produk 93 | RL6 — PORTL bit 6 / LCD segment |
| Pin produk 94 | RL7 — PORTL bit 7 / LCD segment |
| Pin produk 95 | VDD — Positive supply |
| Pin produk 96 | VSS — Ground reference |
| Pin produk 97 | D+ — USB D+ data line |
| Pin produk 98 | D- — USB D- data line |
| Pin produk 99 | MCLR — Master clear reset (active low) |
| Pin produk 100 | OSC1 — Oscillator input / external clock |
Aplikasi Umum
PIC18F97J94T-I/PT cocok untuk 6 aplikasis: USB Peripherals and HID Devices, Segmented LCD User Interface Panels, Smart Energy and e-Metering, Medical Instrumentation with USB, Industrial Control Panels and HMI, Consumer Appliances with USB Update Port.
USB Peripherals and HID Devices
The PIC18F97J94T-I/PT's on-chip USB 2.0 full-speed controller supporting device, host, and OTG modes eliminates the need for an external PHY, making it ideal for low-cost USB peripherals such as HID input devices, USB-to-UART bridges, and PC accessories. At 16 MIPS instruction throughput the device handles USB interrupt traffic plus application processing without bottlenecks. The 4 KB RAM buffers USB packets comfortably, and the 128 KB flash accommodates full USB stacks and class drivers (HID, CDC, MSD). Industrial temperature range enables USB peripherals in commercial and light-industrial deployments. Reference USB firmware (MLA library) is freely available from Microchip, accelerating time-to-market for compliant USB products.
Direkomendasikan
Segmented LCD User Interface Panels
The PIC18F97J94T-I/PT's integrated LCD controller drives up to 480 segments directly without an external driver, supporting 1/2, 1/3, 1/4, and 1/8 duty multiplexed glass. This suits white-goods control panels, e-metering front panels, medical device UIs, and consumer appliances with multi-character segment displays. The nanoWatt XLP technology maintains LCD display during sleep at sub-1 uA total current, enabling battery-backed meter designs that retain the user display for years on a single coin cell. Charge pump contrast bias generation is integrated, removing external discrete components. Designers can use Microchip's MPLAB Code Configurator to generate LCD initialization code automatically.
Direkomendasikan
Smart Energy and e-Metering
The PIC18F97J94T-I/PT combines the 480-segment LCD driver for metrology displays with 12-bit ADC accuracy suitable for voltage and current sensing in single-phase e-meters. nanoWalt XLP technology enables sleep currents below 1 uA, allowing the meter to retain display and RTC function for years from a backup battery. The 128 KB flash stores metrology algorithms, calibration constants, and optional communication stacks (Modbus, IEC 62056-21) without external memory. On-chip comparators support zero-crossing detection for tariff switching, while CCP/PWM modules can drive LED indicators or relay control directly.
Direkomendasikan
Medical Instrumentation with USB
The PIC18F97J94T-I/PT suits medical instrumentation designs that require USB data logging to a host PC plus an on-board LCD for direct patient readout. Examples include point-of-care diagnostic readers, blood-glucose meters, and portable spirometers. The 12-bit ADC handles sensor signal conditioning for analog sensors, while the 480-segment LCD shows numeric results and trend graphs. The industrial -40C to +85C temperature range supports regulated medical environments. Hardware CRC and the CTMU (Charge Time Measurement Unit) simplify capacitive touch interface integration for user buttons without external components.
Direkomendasikan
Industrial Control Panels and HMI
The PIC18F97J94T-I/PT's combination of 70 GPIO, USB host mode, segmented LCD, and multiple UART/SPI/I2C channels makes it suitable for industrial control panels, machine status displays, and small-scale HMI nodes. The wide 2.0 V to 3.6 V supply tolerance tolerates industrial 24V-to-3.3V buck-derived rails with margin. The on-chip USB host mode enables panel-mount USB mass-storage or barcode-scanner input without an external hub IC. MPLAB Harmony framework support provides proven TCP/IP, USB, and graphics stacks for industrial gateway designs.
Direkomendasikan
Consumer Appliances with USB Update Port
The PIC18F97J94T-I/PT fits consumer appliance designs such as washing machines, dishwashers, and HVAC controllers that need a multi-character LCD plus a service-port USB for firmware updates and diagnostics. The nanoWatt XLP sleep mode lets appliances retain LCD state during standby for under 100 uA total system current. The USB device mode enables field firmware upgrades via standard USB cables, eliminating specialized programming tools. The 128 KB flash accommodates large localized UI tables for global product SKUs without external memory.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC18F97J94T-I/PT — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC18F97J94-I/PT | PIC18F96J94T-I/PF | PIC18F87J72-I/PT | PIC18F86J72T-I/PT | PIC18F8723-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (PT) | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 128 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| USB Controller | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device only | USB 2.0 FS Device only | None |
| LCD Driver | Up to 480 segments | Up to 480 segments | Up to 480 segments | Up to 480 segments | Up to 384 segments | None |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | Standard |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 4.2 V to 5.5 V |
| Pin Count | 100 | 100 | 100 | 100 | 100 | 100 |
Diferensiator Kunci
- Highest flash density (128 KB) in 8-bit PIC at release (vsPIC18F86J72T-I/PT)
- On-chip USB OTG host mode eliminates external PHY (vsPIC18F8723-I/PT)
- 480-segment LCD driver eliminates external LCD controller (vsPIC18F8723-I/PT)
- nanoWatt XLP enables <1 uA sleep with LCD retention (vsPIC18F8723-I/PT)
Catatan Desain
Estimated: at 64 MHz full-speed CPU execution the PIC18F97J94T-I/PT draws approximately 15 mA from a 3.3 V supply. Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the pin pair, plus a single 10 uF bulk capacitor near the IC. AVDD/AVSS must be tied to the same rail as VDD/VSS with their own 100 nF decoupling for ADC accuracy. The USB transceiver requires a clean 3.3 V; do not share AVDD with VBUS-derived rails.
The 100-pin TQFP package has a theta_JA of approximately 45 C/W (Microchip datasheet thermal table). At typical USB activity the IC dissipates ~50 mW, yielding a 2.3 C junction temperature rise above ambient, well within the 125 C silicon limit. No external heatsink is required. For high-temperature enclosed applications above 70 C ambient, route a copper pour under the exposed die-pad region (if present) to spread heat.
Place the 100-pin TQFP land pattern with 0.4 mm pitch traces routed on outer layers; use 0.2 mm via-in-pad only if the PCB house supports it. Keep USB D+/D- traces matched to 90 ohm differential impedance and as short as possible (<25 mm). Place the 48 MHz USB clock crystal within 5 mm of the OSC1/OSC2 pins with a grounded guard ring to limit EMI. The MCLR reset circuit requires a 10 kohm pull-up to VDD per Microchip ICD programming requirements.
Common pitfalls: (1) Forgetting to configure the internal 48 MHz USB clock PLL before enabling the USB module - the USB peripheral will not enumerate; (2) Enabling USB without configuring the internal voltage regulator settings, causing VUSB rail instability; (3) Driving the segmented LCD glass beyond the 480-segment map of the 97J94 will result in ghosting; (4) Using the ADC sections via PIN to read a signal above 3.6 V without external resistor dividers will damage the analog pin; (5) Forgetting to set the LAT register bits to digital mode for shared analog/digital pins.
Informasi Konformitas
RoHS compliant per Microchip product page. Industrial -40C to +85C operating range. Not AEC-Q100 qualified - choose PIC18F97J94-I/PT automotive variants for vehicle applications. Lead-free / halogen-free per Microchip material declaration.
