PIC18F87J93-I/PT - 128KB Flash LCD MCU 8-bit 48MHz | Microchip
MPN: PIC18F87J93-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.16 | $71.60 |
| 100 | $6.36 | $636.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.77 | $4,770.00 |
PIC18F87J93-I/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripherals. The PIC18F87J93 belongs to the PIC18J family, which extends the classic PIC18 Harvard architecture with a 16-bit-wide program-memory bus, higher linear addressing, and nanoWatt XLP-style power management. It sits within the broader taxonomy: 8-bit microcontroller -> PIC microcontroller -> PIC18 family -> PIC18J sub-family -> Microchip 8-bit MCU portfolio.
Key features include 128KB (64K x 16) of self-programmable Flash, 4KB RAM, an integrated LCD driver capable of driving up to 192 segments, a 12-bit ADC, multiple USART/SPI/I2C peripherals, nanoWatt power-saving modes for battery operation, and an extended industrial temperature range (-40°C to +85°C) as indicated by the -I suffix. The 80-pin TQFP gives generous I/O and analog-channel count for sensor-rich applications.
The PIC18J core uses a 16-bit instruction path with a two-stage pipeline and a hardware multiply, allowing deterministic interrupt response and efficient C compilation via MPLAB XC8. The integrated LCD charge pump and resistor ladder remove the need for external voltage generation, reducing BOM cost and board area in human-machine-interface (HMI) products.
Typical applications include handheld digital multimeters, thermostats and HVAC controls, home-security keypads, portable medical monitors (glucometers, pulse oximeters), and electricity/water/gas utility meters. The combination of integrated 12-bit ADC, segmented LCD, and low-power nanoWatt modes suits battery-powered metering with on-device display readouts.
When designing with this part, allocate sufficient PCB area for decoupling (100 nF ceramic per VDD pair plus bulk tantalum) and route the LCD segment traces with care to avoid crosstalk. Verify that the segment count of your glass does not exceed the part's COM/SEG matrix in the selected pin configuration.
Drop-in alternatives for PIC18F87J93-I/PT — 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 PIC18F87J93-I/PT (same form factor and footprint) — differing in ADC, Package, I/O Pins, Core Architecture, LCD Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F87J93T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F87J72-I/PT
✅ Drop-In✓ In Stock
$4.78 / Unit
View Datasheet →PIC18F8723-I/PT
✅ Drop-In✓ In Stock
$7.95 / Unit
View Datasheet →PIC18F8722T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F85K90-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F87J93-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18J 8-bit Harvard (16-bit program bus) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data Memory (RAM) | 4 KB |
| Maximum CPU Frequency | 48 MHz |
| ADC | 12-bit, up to 12 channels |
| LCD Driver | Integrated segmented LCD controller (up to ~192 segments) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| I/O Pins | Up to 69 (80-pin device) |
| Package | 80-pin TQFP (PT), 12x12 mm |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| Peripherals | USART, SPI, I2C, ECCP, comparators, CTMU |
| Power-Saving Modes | nanoWatt XLP (Sleep, Idle, RTCC) |
| RoHS Status | Compliant |
| Programming/Debug | ICSP, ICD via MPLAB |
PIC18F87J93-I/PT Pin Configuration
| Pin 1 | RA0/AN0 — PORTA bit 0 / ADC analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / ADC analog input 1 |
| Pin 3 | RA2/AN2/VREF- — PORTA bit 2 / ADC analog input 2 / ADC VREF- |
| Pin 4 | RA3/AN3/VREF+ — PORTA bit 3 / ADC analog input 3 / ADC VREF+ |
| Pin 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 6 | RA5/AN4 — PORTA bit 5 / ADC analog input 4 |
| Pin 7 | RA6 — PORTA bit 6 |
| Pin 8 | RA7 — PORTA bit 7 |
| Pin 9 | RE0/RD — PORTE bit 0 / LCD segment drive |
| Pin 10 | RE1/WR — PORTE bit 1 / LCD segment drive |
| Pin 11 | RE2/CS — PORTE bit 2 / LCD segment drive |
| Pin 12 | VDD — Positive supply (2.0-3.6 V) |
| Pin 13 | VSS — Ground reference |
| Pin 14 | OSC1/CLKI/RA7 — Oscillator input / external clock input |
| Pin 15 | OSC2/CLKO/RA6 — Oscillator output |
| Pin 16 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator |
| Pin 17 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator / CCP2 |
| Pin 18 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Pin 19 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 20 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 21 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 22 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pin 23 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pin 24 | RD0/PSP0/SEG0 — PORTD bit 0 / LCD segment 0 |
| Pin 25 | RD1/PSP1/SEG1 — PORTD bit 1 / LCD segment 1 |
| Pin 26 | RD2/PSP2/SEG2 — PORTD bit 2 / LCD segment 2 |
| Pin 27 | RD3/PSP3/SEG3 — PORTD bit 3 / LCD segment 3 |
| Pin 28 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 |
| Pin 29 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 30 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 31 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Pin 32 | RB4/KBI0 — PORTB bit 4 / interrupt-on-change |
| Pin 33 | RB5/KBI1 — PORTB bit 5 / interrupt-on-change |
| Pin 34 | RB6/KBI2/PGC — PORTB bit 6 / ICSP clock |
| Pin 35 | RB7/KBI3/PGD — PORTB bit 7 / ICSP data |
| Pin 36 | VSS — Ground reference |
| Pin 37 | VDD — Positive supply (2.0-3.6 V) |
| Pin 38 | RF0 — PORTF bit 0 |
| Pin 39 | RF1 — PORTF bit 1 |
| Pin 40 | RF2 — PORTF bit 2 |
| Pin 41 | RF3 — PORTF bit 3 |
| Pin 42 | RF4 — PORTF bit 4 |
| Pin 43 | RF5 — PORTF bit 5 |
| Pin 44 | RF6 — PORTF bit 6 |
| Pin 45 | RF7 — PORTF bit 7 |
| Pin 46 | RG0 — PORTG bit 0 |
| Pin 47 | RG1 — PORTG bit 1 |
| Pin 48 | RG2 — PORTG bit 2 |
| Pin 49 | RG3 — PORTG bit 3 |
| Pin 50 | RG4 — PORTG bit 4 |
| Pin 51 | AVDD — Analog positive supply |
| Pin 52 | AVSS — Analog ground |
| Pin 53 | RH0 — PORTH bit 0 |
| Pin 54 | RH1 — PORTH bit 1 |
| Pin 55 | RH2 — PORTH bit 2 |
| Pin 56 | RH3 — PORTH bit 3 |
| Pin 57 | RH4 — PORTH bit 4 |
| Pin 58 | RH5 — PORTH bit 5 |
| Pin 59 | RH6 — PORTH bit 6 |
| Pin 60 | RH7 — PORTH bit 7 |
| Pin 61 | RJ0 — PORTJ bit 0 |
| Pin 62 | RJ1 — PORTJ bit 1 |
| Pin 63 | RJ2 — PORTJ bit 2 |
| Pin 64 | RJ3 — PORTJ bit 3 |
| Pin 65 | RJ4 — PORTJ bit 4 |
| Pin 66 | RJ5 — PORTJ bit 5 |
| Pin 67 | RJ6 — PORTJ bit 6 |
| Pin 68 | RJ7 — PORTJ bit 7 |
| Pin 69 | RK0 — PORTK bit 0 |
| Pin 70 | RK1 — PORTK bit 1 |
| Pin 71 | RK2 — PORTK bit 2 |
| Pin 72 | RK3 — PORTK bit 3 |
| Pin 73 | RK4 — PORTK bit 4 |
| Pin 74 | RK5 — PORTK bit 5 |
| Pin 75 | RK6 — PORTK bit 6 |
| Pin 76 | RK7 — PORTK bit 7 |
| Pin 77 | RL0 — PORTL bit 0 / LCD segment |
| Pin 78 | RL1 — PORTL bit 1 / LCD segment |
| Pin 79 | RL2 — PORTL bit 2 / LCD segment |
| Pin 80 | RL3 — PORTL bit 3 / LCD segment |
Typical Applications
PIC18F87J93-I/PT is suitable for 6 applications: Handheld Digital Multimeter, Programmable Thermostat / HVAC Controller, Home-Security Keypad / Alarm Panel, Portable Medical Device (Glucometer / Pulse Oximeter), Electric / Water / Gas Utility Meter, Industrial Sensor Hub with Local Display.
Handheld Digital Multimeter
The PIC18F87J93-I/PT is purpose-built for handheld digital multimeters (DMMs) where a low-power 8-bit core must drive a multi-digit 7-segment LCD and sample multiple analog inputs. Its 12-bit ADC with up to 12 channels captures voltage, current, and temperature sense lines, while the integrated LCD driver (up to 192 segments) drives the meter display without an external controller. NanoWatt XLP sleep currents in the microamp range extend battery life on 2xAA alkaline cells. Reference design patterns follow the Microchip AN1295 LCD meter note.
Recommended
Programmable Thermostat / HVAC Controller
For programmable HVAC thermostats and wall-mounted controllers, the PIC18F87J93-I/PT delivers 128 KB Flash for schedule storage, an integrated segmented LCD controller for backlit glass-front displays, and a 12-bit ADC for thermistor/thermocouple temperature sensing. The 2.0-3.6 V supply lets the design run from a 24VAC half-wave-derive rail with a simple LDO. Real-Time Clock and Calendar (RTCC) with external 32.768 kHz crystal maintains time during power loss. The Microchip PIC18F87J93 family datasheet (DS39948A) provides a typical thermostat reference schematic.
Recommended
Home-Security Keypad / Alarm Panel
The PIC18F87J93-I/PT fits home-security alarm panels and keypads where an MCU must drive a multi-line character LCD or large segment display while scanning a 4x4 matrix keypad and supervising multiple zone sensors. Its 128 KB Flash supports encrypted sensor protocols and event logging, while the integrated LCD driver removes a separate display chip from the BOM. USART/SPI/I2C peripherals provide cellular or Wi-Fi module connectivity for cloud reporting. NanoWatt modes keep quiescent current low during armed standby.
Recommended
Portable Medical Device (Glucometer / Pulse Oximeter)
Battery-powered medical devices such as glucometers, pulse oximeters, and digital thermometers benefit from the PIC18F87J93-I/PT's combination of low-power nanoWatt operation, integrated 12-bit ADC for analog sensor readout, and segmented LCD controller for direct glass display driving. The 128 KB Flash accommodates FDA-style calibration data and on-screen UI strings, while 4 KB RAM holds smoothed sensor samples. Operating from 2.0-3.6 V suits a single CR2032 or 2xAAA battery, and the -40 to +85 C industrial range covers portable-use environments.
Recommended
Electric / Water / Gas Utility Meter
Utility metering is the canonical use case for the PIC18F87J93-I/PT: an integrated LCD driver displays consumption digits and status icons on a multi-segment glass, the 12-bit ADC accurately samples current shunts or analog sensor outputs, and 128 KB Flash stores tamper events and tariff tables. NanoWatt XLP modes with RTCC ticking on a 32.768 kHz crystal allow multi-year battery operation. The 80-pin TQFP gives enough GPIO for optical tamper sensors, metrology pulse outputs, and wireless M-Bus or wireless M-Bus / LoRaWAN module interfaces.
Recommended
Industrial Sensor Hub with Local Display
Industrial sensor hubs that aggregate 4-20 mA loops, thermistors, and digital sensor buses benefit from the PIC18F87J93-I/PT's 12-channel 12-bit ADC, multiple USART/SPI/I2C peripherals, and on-chip segmented LCD driver for a local display readout. The 80-pin TQFP exposes enough GPIO for digital I/O expansion and isolated communication ports. Industrial -40 to +85 C operation tolerates factory-floor temperatures, and the extended PIC18J instruction set handles Modbus RTU framing in firmware without external protocol ICs.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F87J93-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F87J93T-I/PT | PIC18F67J93-I/PT | PIC18F87J72-I/PT | PIC18F8723-I/PT | PIC18F8722T-I/PT | PIC18F85K90-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP - same | 64-pin TQFP - different | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC18J 8-bit | PIC18J 8-bit - same | PIC18J 8-bit - same | PIC18F87J72 family | PIC18 5V 8-bit | PIC18 5V 8-bit | PIC18 K-series 8-bit |
| AEC-Q100 | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified |
Key Differentiators
- Integrated LCD driver eliminates external charge pump (vs PIC18F8723-I/PT)
- 12-bit ADC vs 10-bit on legacy 5 V parts (vs PIC18F8723-I/PT)
- More pins and GPIO than 64-pin sibling (vs PIC18F67J93-I/PT)
- Modern PIC18 K-series alternative at higher clock (vs PIC18F85K90-I/PT)
Design Notes
Place a 100 nF ceramic decoupling capacitor on every VDD/AVDD pair within 5 mm of the IC pin, and add a single 10 uF tantalum or ceramic bulk capacitor on the main 3.3 V rail. The PIC18F87J93-I/PT's integrated LCD charge pump draws brief current spikes during bias generation, so low‑ESR bulk decoupling prevents VDD droop that could cause ADC inaccuracy on the same supply rail.
Route LCD segment traces with short, parallel paths to the glass connector and keep them away from high-frequency switching lines (USART, SPI clock) and the on-board oscillator traces. The 80-pin TQFP (12x12 mm) gives 0.5 mm pitch - use 0.15 mm/0.20 mm trace/spacing and a 4-layer stackup with a continuous ground plane under the MCU to minimize noise coupling into the analog ADC inputs (AN0-AN11).
Do not assume the 80-pin TQFP pinout is identical across the PIC18F87J93 family and PIC18F8723/PIC18F8722 legacy 5 V families - they share the package but differ in pin function (LCD segments vs GPIO) and supply-voltage tolerance. Always cross-check the datasheet pin tables before migrating firmware between PIC18F87J93-I/PT and PIC18F8723-I/PT, since 5 V on PIC18F87J93 inputs will damage the part. Source: PIC18F87J93 family datasheet (DS39948A).
When driving long off-board sensor cables from PIC18F87J93-I/PT ADC pins, add a 100 ohm series resistor and a 10 nF ceramic to ground at the pin to form a low-pass filter that suppresses RF interference. The 12-bit ADC has limited analog bandwidth; oversampling or averaging 16x in firmware extends effective resolution to ~14 bits for slow DC measurements like thermistor sensing in thermostats and utility meters.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade (-I suffix) -40 to +85 C; not AEC-Q100 qualified for automotive. Pb-free reflow profile per JEDEC J-STD-020 MSL3.
