PIC18F87J93-I/PT - 128KB Flash LCD MCU 8-bit 48MHz | Microchip
Référence : PIC18F87J93-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour PIC18F87J93-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F87J93-I/PT (même facteur de forme et même empreinte) — différant par ADC, Package, I/O Pins, Core Architecture, LCD Driver.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F87J93T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F87J72-I/PT
✅ Remplacement direct✓ En stock
$4.78 / unité
Voir la fiche technique →PIC18F8723-I/PT
✅ Remplacement direct✓ En stock
$7.95 / unité
Voir la fiche technique →PIC18F8722T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F85K90-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F87J93-I/PT Valeurs maximales et caractéristiques électriques
| 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 |
| Plage de température de fonctionnement | -40 C to +85 C (Industrial) |
| I/O Pins | Up to 69 (80-pin device) |
| Boîtier | 80-pin TQFP (PT), 12x12 mm |
| Type de montage | Surface Mount |
| Niveau MSL | 3 |
| Peripherals | USART, SPI, I2C, ECCP, comparators, CTMU |
| Power-Saving Modes | nanoWatt XLP (Sleep, Idle, RTCC) |
| Statut RoHS | Compliant |
| Programming/Debug | ICSP, ICD via MPLAB |
Configuration des broches de PIC18F87J93-I/PT
| Broche 1 | RA0/AN0 — PORTA bit 0 / ADC analog input 0 |
| Broche 2 | RA1/AN1 — PORTA bit 1 / ADC analog input 1 |
| Broche 3 | RA2/AN2/VREF- — PORTA bit 2 / ADC analog input 2 / ADC VREF- |
| Broche 4 | RA3/AN3/VREF+ — PORTA bit 3 / ADC analog input 3 / ADC VREF+ |
| Broche 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Broche 6 | RA5/AN4 — PORTA bit 5 / ADC analog input 4 |
| Broche 7 | RA6 — PORTA bit 6 |
| Broche 8 | RA7 — PORTA bit 7 |
| Broche 9 | RE0/RD — PORTE bit 0 / LCD segment drive |
| Broche 10 | RE1/WR — PORTE bit 1 / LCD segment drive |
| Broche 11 | RE2/CS — PORTE bit 2 / LCD segment drive |
| Broche 12 | VDD — Positive supply (2.0-3.6 V) |
| Broche 13 | VSS — Ground reference |
| Broche 14 | OSC1/CLKI/RA7 — Oscillator input / external clock input |
| Broche 15 | OSC2/CLKO/RA6 — Oscillator output |
| Broche 16 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator |
| Broche 17 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator / CCP2 |
| Broche 18 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Broche 19 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Broche 20 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Broche 21 | RC5/SDO — PORTC bit 5 / SPI data out |
| Broche 22 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Broche 23 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Broche 24 | RD0/PSP0/SEG0 — PORTD bit 0 / LCD segment 0 |
| Broche 25 | RD1/PSP1/SEG1 — PORTD bit 1 / LCD segment 1 |
| Broche 26 | RD2/PSP2/SEG2 — PORTD bit 2 / LCD segment 2 |
| Broche 27 | RD3/PSP3/SEG3 — PORTD bit 3 / LCD segment 3 |
| Broche 28 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 |
| Broche 29 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Broche 30 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Broche 31 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Broche 32 | RB4/KBI0 — PORTB bit 4 / interrupt-on-change |
| Broche 33 | RB5/KBI1 — PORTB bit 5 / interrupt-on-change |
| Broche 34 | RB6/KBI2/PGC — PORTB bit 6 / ICSP clock |
| Broche 35 | RB7/KBI3/PGD — PORTB bit 7 / ICSP data |
| Broche 36 | VSS — Ground reference |
| Broche 37 | VDD — Positive supply (2.0-3.6 V) |
| Broche 38 | RF0 — PORTF bit 0 |
| Broche 39 | RF1 — PORTF bit 1 |
| Broche 40 | RF2 — PORTF bit 2 |
| Broche 41 | RF3 — PORTF bit 3 |
| Broche 42 | RF4 — PORTF bit 4 |
| Broche 43 | RF5 — PORTF bit 5 |
| Broche 44 | RF6 — PORTF bit 6 |
| Broche 45 | RF7 — PORTF bit 7 |
| Broche 46 | RG0 — PORTG bit 0 |
| Broche 47 | RG1 — PORTG bit 1 |
| Broche 48 | RG2 — PORTG bit 2 |
| Broche 49 | RG3 — PORTG bit 3 |
| Broche 50 | RG4 — PORTG bit 4 |
| Broche 51 | AVDD — Analog positive supply |
| Broche 52 | AVSS — Analog ground |
| Broche 53 | RH0 — PORTH bit 0 |
| Broche 54 | RH1 — PORTH bit 1 |
| Broche 55 | RH2 — PORTH bit 2 |
| Broche 56 | RH3 — PORTH bit 3 |
| Broche 57 | RH4 — PORTH bit 4 |
| Broche 58 | RH5 — PORTH bit 5 |
| Broche 59 | RH6 — PORTH bit 6 |
| Broche 60 | RH7 — PORTH bit 7 |
| Broche 61 | RJ0 — PORTJ bit 0 |
| Broche 62 | RJ1 — PORTJ bit 1 |
| Broche 63 | RJ2 — PORTJ bit 2 |
| Broche 64 | RJ3 — PORTJ bit 3 |
| Broche 65 | RJ4 — PORTJ bit 4 |
| Broche 66 | RJ5 — PORTJ bit 5 |
| Broche 67 | RJ6 — PORTJ bit 6 |
| Broche 68 | RJ7 — PORTJ bit 7 |
| Broche 69 | RK0 — PORTK bit 0 |
| Broche 70 | RK1 — PORTK bit 1 |
| Broche 71 | RK2 — PORTK bit 2 |
| Broche 72 | RK3 — PORTK bit 3 |
| Broche 73 | RK4 — PORTK bit 4 |
| Broche 74 | RK5 — PORTK bit 5 |
| Broche 75 | RK6 — PORTK bit 6 |
| Broche 76 | RK7 — PORTK bit 7 |
| Broche 77 | RL0 — PORTL bit 0 / LCD segment |
| Broche 78 | RL1 — PORTL bit 1 / LCD segment |
| Broche 79 | RL2 — PORTL bit 2 / LCD segment |
| Broche 80 | RL3 — PORTL bit 3 / LCD segment |
Applications typiques
PIC18F87J93-I/PT convient pour 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F87J93-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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.
