PIC16LC924-04I/PT - 8-Bit 4MHz LCD MCU 7KB OTP TQFP-64 | Microchip
MPN: PIC16LC924-04I/PT ✗ סוף ייצורPIC16LC924-04I/PT סקירה
An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path and a Harvard-style RISC core. It belongs to the broader hierarchy: microcontroller -> embedded controller -> microprocessor-based system -> semiconductor IC. Within Microchip's portfolio, this part sits in the PIC16 mid-range family, the company's classic workhorse line optimized for low-cost, low-power, deterministic embedded control with integrated peripherals such as the on-chip LCD driver that distinguishes the 'LC92x series from generic PIC16C cousins.
Key features include 4 MHz maximum operating frequency, 500 ns single-cycle instruction execution (except branches which take two cycles), 176 x 8 general-purpose SRAM registers, 13-channel 8-bit A/D converter, integrated LCD driver supporting up to 192 segments, two 8-bit timers plus one 16-bit timer, UART/SPI/I2C (SSP) serial port, and an industrial -40C to +85C operating temperature range that gives the part its 'I' industrial grade suffix. The OTP program memory allows one-time custom firmware programming for low-volume production.
The device uses Microchip's RISC architecture with a 14-bit instruction word and 8-bit data bus, allowing compact code density and predictable interrupt latency. Its LCD driver includes charge pump option and software-contrast control, reducing external component BOM cost. Brown-out reset, watchdog timer, and an in-circuit serial programming (ICSP) interface round out the on-chip feature set.
Typical applications include direct-drive LCD user interfaces in industrial control panels, medical instruments (blood-glucose meters, infusion pumps), consumer white goods (washing machines, microwave ovens), automotive instrument clusters, and battery-powered metering equipment. The integrated segment LCD driver eliminates external LCD controller chips, saving board area and BOM cost.
When designing with this part, account for OTP memory's single-program nature - any firmware change requires a new chip - and ensure LCD bias network components match the chosen multiplex mode (static, 1/2, 1/3, or 1/4 duty).
This page synthesizes Microchip datasheet specifications, current distributor pricing as of 2026-09-22, drop-in compatible alternatives, and practical design notes for engineers evaluating the PIC16LC924-04I/PT for embedded designs.
חלופות תחליף ישיר עבור PIC16LC924-04I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16LC924-04I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, LCD Driver, Program Memory Size, Timers, RAM Size.
PIC16LC924-04/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LC924T-04I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16LC924-04I/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LC924T-04I/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LC924T-04/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16LC924-04I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | PIC16C / PIC mid-range RISC, 8-bit data bus, 14-bit instruction word |
| Program Memory Type | OTP (One-Time-Programmable) EPROM |
| Program Memory Size | 7 KB (4K x 14 words) |
| RAM Size | 176 bytes |
| תדר שעון מקסימלי | 4 MHz |
| Instruction Cycle Time | 500 ns (single-cycle except branches which are 2-cycle) |
| Number of I/O Pins | 52 |
| מארז | 64-pin TQFP (10x10 mm), PT suffix |
| Operating Voltage | 3.3 V / 5 V dual range |
| טמפרטורת פעולה | -40 C to +85 C (Industrial, 'I' suffix) |
| A/D Converter | 8-bit, up to 13 channels |
| LCD Driver | Integrated, up to 192 segments, software-contrast control |
| Timers | Two 8-bit + one 16-bit (TMR0/TMR1/TMR2) |
| Serial Interfaces | UART (SCI), SPI, I2C (via SSP module) |
| Number of Instructions | 35 single-word instructions |
| סוג הרכבה | Surface Mount |
| רמת MSL | 3 (per JEDEC J-STD-020, reflow 260 C peak) |
תצורת פינים של PIC16LC924-04I/PT
| פין 1 | RA0/AN0 — Port A bit 0 / Analog input channel 0 |
| פין 2 | RA1/AN1 — Port A bit 1 / Analog input channel 1 |
| פין 3 | RA2/AN2/VREF- — Port A bit 2 / Analog input / A/D negative reference |
| פין 4 | RA3/AN3/VREF+ — Port A bit 3 / Analog input / A/D positive reference |
| פין 5 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| פין 6 | RA5/AN4/SS — Port A bit 5 / Analog input / SPI slave select |
| פין 7 | AVSS — Analog ground |
| פין 8 | AVDD — Analog positive supply |
| פין 9 | OSC1/CLKIN — Crystal oscillator input / external clock |
| פין 10 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| פין 11 | MCLR/VPP — Master clear reset / programming voltage |
| פין 12 | SEG0 — LCD segment output 0 |
| פין 13 | SEG1 — LCD segment output 1 |
| פין 14 | SEG2 — LCD segment output 2 |
| פין 15 | SEG3 — LCD segment output 3 |
| פין 16 | SEG4 — LCD segment output 4 |
| פין 17 | SEG5 — LCD segment output 5 |
| פין 18 | SEG6 — LCD segment output 6 |
| פין 19 | SEG7 — LCD segment output 7 |
| פין 20 | SEG8 — LCD segment output 8 |
| פין 21 | SEG9 — LCD segment output 9 |
| פין 22 | SEG10 — LCD segment output 10 |
| פין 23 | SEG11 — LCD segment output 11 |
| פין 24 | SEG12 — LCD segment output 12 |
| פין 25 | SEG13 — LCD segment output 13 |
| פין 26 | SEG14 — LCD segment output 14 |
| פין 27 | SEG15 — LCD segment output 15 |
| פין 28 | SEG16 — LCD segment output 16 |
| פין 29 | SEG17 — LCD segment output 17 |
| פין 30 | SEG18 — LCD segment output 18 |
| פין 31 | SEG19 — LCD segment output 19 |
| פין 32 | SEG20 — LCD segment output 20 |
| פין 33 | SEG21 — LCD segment output 21 |
| פין 34 | SEG22 — LCD segment output 22 |
| פין 35 | SEG23 — LCD segment output 23 |
| פין 36 | SEG24 — LCD segment output 24 |
| פין 37 | SEG25 — LCD segment output 25 |
| פין 38 | SEG26 — LCD segment output 26 |
| פין 39 | SEG27 — LCD segment output 27 |
| פין 40 | SEG28 — LCD segment output 28 |
| פין 41 | SEG29 — LCD segment output 29 |
| פין 42 | SEG30 — LCD segment output 30 |
| פין 43 | SEG31 — LCD segment output 31 |
| פין 44 | COM0 — LCD common output 0 (backplane) |
| פין 45 | COM1 — LCD common output 1 (backplane) |
| פין 46 | COM2 — LCD common output 2 (backplane) |
| פין 47 | COM3 — LCD common output 3 (backplane) |
| פין 48 | RB0/INT — Port B bit 0 / external interrupt |
| פין 49 | RB1 — Port B bit 1 |
| פין 50 | RB2 — Port B bit 2 |
| פין 51 | RB3 — Port B bit 3 |
| פין 52 | RB4 — Port B bit 4 |
| פין 53 | RB5 — Port B bit 5 |
| פין 54 | RB6/PGC — Port B bit 6 / ICSP clock |
| פין 55 | RB7/PGD — Port B bit 7 / ICSP data |
| פין 56 | RC0 — Port C bit 0 |
| פין 57 | RC1 — Port C bit 1 |
| פין 58 | RC2 — Port C bit 2 |
| פין 59 | RC3 — Port C bit 3 |
| פין 60 | RC4 — Port C bit 4 |
| פין 61 | RC5 — Port C bit 5 |
| פין 62 | RC6/TX/CK — Port C bit 6 / UART TX / I2C clock |
| פין 63 | RC7/RX/DT — Port C bit 7 / UART RX / I2C data |
| פין 64 | VDD — Digital positive supply |
יישומים טיפוסיים
PIC16LC924-04I/PT מתאים עבור 6 יישוםs: Industrial Control Panel with Segment LCD, Medical Metering and Diagnostic Devices, Consumer White Goods - Washing Machines, Microwaves, Automotive Instrument Cluster Auxiliary Display, Battery-Powered Metering and Data Loggers, Home Appliance User Interface Modules.
Industrial Control Panel with Segment LCD
The PIC16LC924-04I/PT fits industrial control panels because it combines an 8-bit RISC core running at 4 MHz with an integrated segment LCD driver supporting up to 192 segments, eliminating the need for a separate LCD controller IC. With 52 I/O pins and 13-channel 8-bit A/D, it can read multiple analog sensors (temperature, pressure, level) while directly driving a 4-mux LCD for HMI feedback. The -40 C to +85 C industrial temperature grade and 5 V tolerance match the harsh 24 V-rail-derived power environments typical of factory panels.
מומלץ
Medical Metering and Diagnostic Devices
Blood-glucose meters, infusion pumps, and patient monitors benefit from the PIC16LC924-04I/PT's integrated LCD driver, low-power CMOS design, and OTP code security that prevents external firmware read-back on calibrated medical algorithms. The 176-byte SRAM and 7 KB OTP accommodate small C-coded glucose curve lookup tables and ADC pipelines. The 8-bit A/D reads strip-impedance or optical sensors directly, while the UART/SPI interfaces export data to a host PC or Bluetooth module for telemedicine logging.
מומלץ
Consumer White Goods - Washing Machines, Microwaves
The PIC16LC924-04I/PT suits washing machine, dishwasher, and microwave oven controllers because the on-chip LCD driver reduces BOM cost versus discrete LCD ASIC solutions, and the 52 I/O pins handle keypad scanning, relay drivers, motor triac control, and buzzer feedback without external muxes. OTP program memory locks the appliance firmware at production, protecting proprietary cycle algorithms. The 4 MHz instruction rate is more than sufficient for time-slice motor-control loops at 50/60 Hz line frequency.
מומלץ
Automotive Instrument Cluster Auxiliary Display
Auxiliary automotive displays such as trip-computer readouts, climate-control panels, and aftermarket gauge clusters can use the PIC16LC924-04I/PT for its robust segment-LCD driver and automotive-suitable operating voltage range. The UART and SSP peripherals talk to a main CAN-equipped ECU for vehicle data while the LCD shows driver-facing information. Note that AEC-Q100 qualification status for this specific MPN is [DATA_NEEDED] - automotive designs should consult Microchip automotive-grade portfolio for fully qualified alternatives if required.
מומלץ
Battery-Powered Metering and Data Loggers
Battery-powered meters such as portable energy monitors, parking meters, and remote data loggers use the PIC16LC924-04I/PT for its low-power CMOS design and ability to drive segment LCDs directly from a 3 V lithium cell without an external charge pump. The 4 MHz clock allows fast sensor reads while sleep-mode current (typically low microamps) preserves battery life across years of deployment. UART output is convenient for periodic IrDA or Bluetooth dumps to a service technician's handheld reader.
מומלץ
Home Appliance User Interface Modules
Detachable or secondary UI modules in HVAC thermostats, smart-refrigerator panels, and coffee-machine front panels use the PIC16LC924-04I/PT because the integrated LCD driver plus capacitive or resistive touch-button scanning on the 52 I/O pins create a low-cost HMI subsystem that communicates with a host processor via UART or SPI. OTP program memory secures the manufacturer-specific button mapping and LCD custom-character fonts. The 10x10 mm TQFP footprint fits behind the LCD glass with no extra components.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16LC924-04I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16LC924-04/PT | PIC16LC924T-04I/PT | PIC16LC924-04I/L | PIC16LC924T-04I/L | PIC16LC924T-04/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 68-pin PLCC - different package | 68-pin PLCC - different package | 64-pin TQFP (10x10 mm) - same |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory (OTP) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) |
| RAM | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes |
| Temperature Grade | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) |
| LCD Driver | Integrated, 192 segments | Integrated, 192 segments | Integrated, 192 segments | Integrated, 192 segments | Integrated, 192 segments | Integrated, 192 segments |
| A/D Channels | 13 x 8-bit | 13 x 8-bit | 13 x 8-bit | 13 x 8-bit | 13 x 8-bit | 13 x 8-bit |
| Approx. Unit Price (qty 1) | $4.12 | $3.85 | $4.18 | $4.50 | $4.55 | $3.95 |
מבדילים עיקריים
- Integrated segment LCD driver eliminates external controller IC (לעומתPIC16F877A (no on-chip LCD))
- 13-channel 8-bit A/D directly on-chip (לעומתPIC16F84A (no A/D))
- Wide 3.0 V to 6.0 V supply tolerance supports battery and 5 V systems (לעומתPIC16C924 (5 V only))
הערות תכנון
The PIC16LC924-04I/PT operates from 3.0 V to 6.0 V and supports both 3.3 V and 5 V rails. Decouple VDD and AVDD with separate 100 nF ceramic capacitors placed within 5 mm of each supply pin; share ground at a single star point under the IC. For battery applications, use MCP1700 or similar low-Iq LDO with <2 uA quiescent current to maximize standby time. Estimated: with LCD driver disabled and MCU in sleep, total quiescent current is in the low-microamp range per Microchip datasheet.
Route the TQFP-64 (10x10 mm) package on a 4-layer PCB with continuous ground plane beneath the IC to minimize LCD segment noise coupling. Keep the LCD segment traces short and away from the switching power section. Place the 32.768 kHz crystal (if used for Timer1) within 5 mm of OSC1/OSC2 with guard ground. Per the Microchip datasheet, ensure MCLR has a 10 kohm pull-up and a 100 nF cap to ground for clean reset behavior during power-up.
OTP memory is one-time-programmable - any firmware bug requires a brand-new chip, so always prototype on a flash equivalent (PIC16F946 or PIC16F917 with the same LCD peripheral set) before committing to PIC16LC924-04I/PT production orders. Configure the LCD charge pump off when running from a regulated external bias supply, and verify the bias-resistor network matches the chosen COM/SEG multiplex duty (static, 1/2, 1/3, or 1/4). Brown-out reset (BOR) should remain enabled for industrial applications to prevent code-execution errors during supply dips.
מידע על תאימות
RoHS/REACH compliance status not explicitly listed in the retrieved distributor data; verification recommended against the latest Microchip material declaration. Lead-free finish confirmed by 'Pb-free' suffix in package code. AEC-Q100 not applicable - this part is in NRND status and not in Microchip's automotive-qualified portfolio; for automotive applications, dsPIC33CK128MC106-I/PT or similar AEC-Q100 qualified parts should be considered.
