PIC16C924-08/L - 8-Bit MCU w/ LCD Driver, 7KB OTP, 68-PLCC | Microchip
MPN: PIC16C924-08/L ✗ انتهى عمره الإنتاجيPIC16C924-08/L نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and configurable I/O peripherals. The PIC16C924 sits in Microchip's PIC16 mid-range family, an 8-bit RISC architecture known for its small instruction set (only 35 single-word instructions) and deterministic timing. Adding an on-chip LCD driver makes this part a category-defining solution for embedded human-machine interfaces, eliminating the need for an external LCD controller chip and reducing BOM cost and PCB area.
Key features include five channels of 8-bit Analog-to-Digital conversion (ADC), a Synchronous Serial Port configurable as either 3-wire SPI or 2-wire I2C, an integrated LCD driver capable of driving 32 segments with 4 commons (up to 128 pixel control), and capture/compare/PWM peripherals. The CMOS process provides low power consumption and high noise immunity, while the 14-bit instruction word delivers compact code density. The OTP program memory is one-time-programmable, suiting production runs where firmware is finalized and cost per unit is critical.
Typical applications include industrial control panels, point-of-sale terminals, medical instrumentation with graphical readouts, automotive dashboard clusters, appliance user interfaces, and metering equipment. The 52 I/O pins and 8-bit ADC simplify sensor aggregation, while the integrated LCD driver removes the need for an external controller.
When designing with the PIC16C924, ensure that OTP programming is performed before final assembly (windowless PLCC cannot be UV-erased). Confirm timing budgets against the 8 MHz oscillator and the 500 ns instruction cycle, and verify the LCD bias and contrast network against the panel datasheet.
This page synthesizes distributor pricing, drop-in alternatives in the same 68-PLCC footprint, and practical design notes not found in the manufacturer datasheet.
بدائل مباشرة لـ PIC16C924-08/L — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16C924-08/L (نفس عامل الشكل والبصمة) — يختلف في LCD Driver, Package, Operating Temperature, Timers, Mounting Type.
PIC16C924-04I/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C924/CL
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C923-08I/L
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C923T-08I/L
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C923-04I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C924-08/L الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 176 bytes |
| أقصى تردد للساعة | 8 MHz |
| Instruction Cycle | 500 ns |
| ADC | 5 channels x 8-bit |
| I/O Pins | 52 |
| LCD Driver | 32 segments x 4 commons (128 pixels) |
| Serial Interface | SSP - SPI / I2C |
| العلبة | 68-PLCC (24.23 x 24.23 mm) windowless |
| نوع التركيب | Surface Mount (J-Lead) |
| Instruction Set | 35 single-word instructions |
تكوين أطراف PIC16C924-08/L
| دبوس 1 | MCLR/Vpp — Master Clear reset (active low) / programming voltage input |
| دبوس 2 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| دبوس 3 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| دبوس 4 | RA0/AN0 — Port A bit 0 / analog input 0 |
| دبوس 5 | RA1/AN1 — Port A bit 1 / analog input 1 |
| دبوس 6 | RA2/AN2 — Port A bit 2 / analog input 2 |
| دبوس 7 | RA3/AN3/Vref — Port A bit 3 / analog input 3 / ADC reference |
| دبوس 8 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| دبوس 9 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| دبوس 10 | Vss — Ground reference |
| دبوس 11 | VDD — Positive supply voltage |
| دبوس 12 | RB0/INT — Port B bit 0 / external interrupt |
| دبوس 13 | RB1 — Port B bit 1 |
| دبوس 14 | RB2 — Port B bit 2 |
| دبوس 15 | RB3 — Port B bit 3 |
| دبوس 16 | RB4 — Port B bit 4 |
| دبوس 17 | RB5 — Port B bit 5 |
| دبوس 18 | RB6/PGC — Port B bit 6 / ICSP clock |
| دبوس 19 | RB7/PGD — Port B bit 7 / ICSP data |
| دبوس 20 | RC0 — Port C bit 0 |
| دبوس 21 | RC1 — Port C bit 1 |
| دبوس 22 | RC2 — Port C bit 2 |
| دبوس 23 | RC3/SCL/SCK — Port C bit 3 / I2C clock / SPI clock |
| دبوس 24 | RC4/SDA/SDI — Port C bit 4 / I2C data / SPI data in |
| دبوس 25 | RC5/SDO — Port C bit 5 / SPI data out |
| دبوس 26 | RC6 — Port C bit 6 |
| دبوس 27 | RC7 — Port C bit 7 |
| دبوس 28 | RD0 — Port D bit 0 |
| دبوس 29 | RD1 — Port D bit 1 |
| دبوس 30 | RD2 — Port D bit 2 |
| دبوس 31 | RD3 — Port D bit 3 |
| دبوس 32 | RD4 — Port D bit 4 |
| دبوس 33 | RD5 — Port D bit 5 |
| دبوس 34 | RD6 — Port D bit 6 |
| دبوس 35 | RD7 — Port D bit 7 |
| دبوس 36 | RE0/RD — Port E bit 0 / LCD register select |
| دبوس 37 | RE1/WR — Port E bit 1 / LCD write strobe |
| دبوس 38 | RE2/CS — Port E bit 2 / LCD chip select |
| دبوس 39 | SEG0 — LCD segment output 0 |
| دبوس 40 | SEG1 — LCD segment output 1 |
| دبوس 41 | SEG2 — LCD segment output 2 |
| دبوس 42 | SEG3 — LCD segment output 3 |
| دبوس 43 | SEG4 — LCD segment output 4 |
| دبوس 44 | SEG5 — LCD segment output 5 |
| دبوس 45 | SEG6 — LCD segment output 6 |
| دبوس 46 | SEG7 — LCD segment output 7 |
| دبوس 47 | SEG8 — LCD segment output 8 |
| دبوس 48 | SEG9 — LCD segment output 9 |
| دبوس 49 | SEG10 — LCD segment output 10 |
| دبوس 50 | SEG11 — LCD segment output 11 |
| دبوس 51 | SEG12 — LCD segment output 12 |
| دبوس 52 | SEG13 — LCD segment output 13 |
| دبوس 53 | SEG14 — LCD segment output 14 |
| دبوس 54 | SEG15 — LCD segment output 15 |
| دبوس 55 | SEG16 — LCD segment output 16 |
| دبوس 56 | SEG17 — LCD segment output 17 |
| دبوس 57 | SEG18 — LCD segment output 18 |
| دبوس 58 | SEG19 — LCD segment output 19 |
| دبوس 59 | SEG20 — LCD segment output 20 |
| دبوس 60 | SEG21 — LCD segment output 21 |
| دبوس 61 | SEG22 — LCD segment output 22 |
| دبوس 62 | SEG23 — LCD segment output 23 |
| دبوس 63 | SEG24 — LCD segment output 24 |
| دبوس 64 | SEG25 — LCD segment output 25 |
| دبوس 65 | SEG26/SEG28 — LCD segment output 26/28 (alternating) |
| دبوس 66 | SEG27/SEG31 — LCD segment output 27/31 (alternating) |
| دبوس 67 | COM0 — LCD common output 0 |
| دبوس 68 | COM1 — LCD common output 1 |
التطبيقات النموذجية
PIC16C924-08/L مناسب لـ 6 التطبيقs: Industrial Control Panels with LCD Readout, Point-of-Sale Terminals and Cash Registers, Medical Instrumentation Displays, Appliance User Interfaces, Automotive Dashboard Clusters (Legacy), Metering and Measurement Equipment.
Industrial Control Panels with LCD Readout
The PIC16C924-08/L is purpose-built for industrial control panels that combine push-button inputs with character or segment LCD readouts. Its integrated 32-segment x 4-common LCD driver eliminates the need for an external LCD controller, reducing PCB area and BOM cost by typically $0.50-$1.00 per unit. The 52 I/O pins support matrix keypads, LED indicators, relay drivers, and sensor inputs; the 5-channel 8-bit ADC handles analog monitoring such as temperature, pressure, or 4-20 mA loop sensing. At 8 MHz with 500 ns instruction cycles, the MCU comfortably handles real-time control loops and LCD refresh without CPU overload. The OTP memory suits high-volume OEM panels where firmware is finalized.
موصى به
Point-of-Sale Terminals and Cash Registers
POS terminals and cash registers benefit from the PIC16C924-08/L's combination of LCD driver, generous I/O count, and serial communication. The integrated LCD interface drives customer-facing alphanumeric displays without a dedicated controller IC, while the 52 I/Os handle keypad scanning, printer handshake lines, drawer-kick solenoids, and magnetic-stripe-reader interfaces. The SSP peripheral supports either SPI for external peripherals or I2C for EEPROM storage of transaction logs. With 7 KB OTP and 176 bytes RAM, the part fits typical firmware for price lookup, totaling, and receipt formatting in standalone or networked POS designs.
موصى به
Medical Instrumentation Displays
Medical devices such as infusion pumps, blood-pressure monitors, and portable diagnostics require clear, low-power LCD readouts combined with sensor acquisition. The PIC16C924-08/L delivers both with its on-chip 5-channel 8-bit ADC for pressure, flow, or temperature sensors, and its 32-segment LCD driver for direct glass-panel connection. The 8 MHz speed and 35-instruction RISC core keep firmware development fast and code compact for IEC 62304-style medical firmware. Industrial temperature range supports clinical and field-use environments. Verify the OTP programming workflow with your quality system before production.
موصى به
Appliance User Interfaces
White goods, HVAC thermostats, and small kitchen appliances use the PIC16C924-08/L to consolidate user-interface, sensor acquisition, and load control on a single chip. The 52 I/Os drive relay triac controls for compressors, heaters, and valves while simultaneously scanning touch keys and refreshing LCD segment displays. The CMOS process keeps quiescent current low for standby modes required by energy-star regulations. Integrated LCD bias generation simplifies the BOM and reduces PCB complexity versus designs that need an external LCD controller with charge pumps.
موصى به
Automotive Dashboard Clusters (Legacy)
Although the PIC16C924-08/L is not AEC-Q100 qualified, it has been used historically in aftermarket and pre-OEM automotive dashboard clusters, motorcycle instrument panels, and marine gauges. Its integrated LCD driver directly connects to glass displays for odometers, fuel, RPM, and warning icons, while the ADC reads analog sensor inputs. For new automotive designs, choose AEC-Q100-qualified PIC microcontrollers instead; for legacy repair and aftermarket applications, the PIC16C924 remains available through distributor stock and brokers.
موصى به
Metering and Measurement Equipment
Electricity meters, water meters, and gas meters use the PIC16C924-08/L's combination of ADC, LCD driver, and low-power CMOS design to deliver long-battery-life metering with clear consumption readouts. The 5-channel ADC supports voltage, current, and temperature sensing, while the LCD driver displays consumption, tariffs, and diagnostic codes. The PIC16 mid-range core's deterministic timing simplifies calibration routines. For new metering designs, evaluate flash-based successors with extended temperature range and updated security peripherals.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16C924-08/L — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C924-04I/L | PIC16C924/CL | PIC16C923-08I/L | PIC16C923T-08I/L | PIC16C923-04I/PT |
|---|---|---|---|---|---|---|
| Package | 68-PLCC (J-Lead) | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same | 68-PLCC (J-Lead) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 8 MHz | 4 MHz | 8 MHz | 8 MHz | 8 MHz | 4 MHz |
| Program Memory | 7 KB OTP (4K x 14) | 7 KB OTP (4K x 14) | 7 KB OTP (4K x 14) | 7 KB OTP (4K x 14) | 7 KB OTP (4K x 14) | 7 KB OTP (4K x 14) |
| RAM | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes |
| ADC Channels | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | None (no ADC module) | None (no ADC module) | None (no ADC module) |
| LCD Driver | 32 seg x 4 com (128 px) | 32 seg x 4 com (128 px) | 32 seg x 4 com (128 px) | 32 seg x 4 com (128 px) | 32 seg x 4 com (128 px) | 32 seg x 4 com (128 px) |
| Temperature Grade | Industrial | Industrial | Commercial | Industrial | Industrial | Industrial |
أبرز الفروقات
- Integrated 32-segment x 4-common LCD driver (مقابلPIC16C77-10I/P)
- 5-channel 8-bit ADC on-chip (مقابلPIC16C923-08I/L)
- 68-pin PLCC with 52 digital I/Os (مقابلPIC16F877A-I/P)
ملاحظات التصميم
The "/L" suffix on PIC16C924-08/L denotes a windowless PLCC package - the OTP program memory cannot be UV-erased after programming. Plan production-line programming workflow carefully: OTP blanks must be programmed once before final assembly, and any firmware revision requires new unprogrammed parts. For development, use the windowed ceramic ("/JW") variant on engineering benches.
The integrated LCD driver outputs directly to glass-panel segment and common pins. Place the MCU as close to the LCD connector as possible to minimize track capacitance, and route segment traces with adequate spacing (typically >= 0.2 mm) to prevent cross-talk. The bias network (resistor ladder or capacitor charge pump) must match the LCD panel's recommended MUX ratio and bias level - confirm against the panel datasheet before finalizing the BOM.
The PIC16C924 CMOS core draws modest current at 8 MHz (typically < 10 mA active). Decouple VDD with a 100 nF ceramic close to the package plus a bulk 10 uF tantalum or ceramic. For battery-backed designs (metering, portable medical), leverage the PIC mid-range's sleep mode and the LCD driver's ability to refresh the display while the CPU is idle - typical standby currents drop below 10 uA with proper configuration.
معلومات الامتثال
RoHS, REACH, lead-free, and halogen-free status not explicitly stated in the verified distributor data; request certificates from the manufacturer. Part is not AEC-Q100 qualified - not suitable for new automotive designs. Lifecycle status: obsolete.
