PIC16C924-08/L - 8-Bit MCU w/ LCD Driver, 7KB OTP, 68-PLCC | Microchip
MPN: PIC16C924-08/L ✗ סוף ייצורPIC16C924-08/L סקירה
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.
חלופות תחליף ישיר עבור PIC16C924-08/L — 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 PIC16C924-08/L (אותו גורם צורה וטביעת רגל) — שונים ב LCD Driver, Package, Operating Temperature, Timers, Mounting Type.
PIC16C924-04I/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C924/CL
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C923-08I/L
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C923T-08I/L
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C923-04I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C924-08/L דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 176 bytes |
| תדר שעון מקסימלי | 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 |
| מארז | 68-PLCC (24.23 x 24.23 mm) windowless |
| סוג הרכבה | Surface Mount (J-Lead) |
| Instruction Set | 35 single-word instructions |
תצורת פינים של PIC16C924-08/L
| פין 1 | MCLR/Vpp — Master Clear reset (active low) / programming voltage input |
| פין 2 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| פין 3 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| פין 4 | RA0/AN0 — Port A bit 0 / analog input 0 |
| פין 5 | RA1/AN1 — Port A bit 1 / analog input 1 |
| פין 6 | RA2/AN2 — Port A bit 2 / analog input 2 |
| פין 7 | RA3/AN3/Vref — Port A bit 3 / analog input 3 / ADC reference |
| פין 8 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| פין 9 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| פין 10 | Vss — Ground reference |
| פין 11 | VDD — Positive supply voltage |
| פין 12 | RB0/INT — Port B bit 0 / external interrupt |
| פין 13 | RB1 — Port B bit 1 |
| פין 14 | RB2 — Port B bit 2 |
| פין 15 | RB3 — Port B bit 3 |
| פין 16 | RB4 — Port B bit 4 |
| פין 17 | RB5 — Port B bit 5 |
| פין 18 | RB6/PGC — Port B bit 6 / ICSP clock |
| פין 19 | RB7/PGD — Port B bit 7 / ICSP data |
| פין 20 | RC0 — Port C bit 0 |
| פין 21 | RC1 — Port C bit 1 |
| פין 22 | RC2 — Port C bit 2 |
| פין 23 | RC3/SCL/SCK — Port C bit 3 / I2C clock / SPI clock |
| פין 24 | RC4/SDA/SDI — Port C bit 4 / I2C data / SPI data in |
| פין 25 | RC5/SDO — Port C bit 5 / SPI data out |
| פין 26 | RC6 — Port C bit 6 |
| פין 27 | RC7 — Port C bit 7 |
| פין 28 | RD0 — Port D bit 0 |
| פין 29 | RD1 — Port D bit 1 |
| פין 30 | RD2 — Port D bit 2 |
| פין 31 | RD3 — Port D bit 3 |
| פין 32 | RD4 — Port D bit 4 |
| פין 33 | RD5 — Port D bit 5 |
| פין 34 | RD6 — Port D bit 6 |
| פין 35 | RD7 — Port D bit 7 |
| פין 36 | RE0/RD — Port E bit 0 / LCD register select |
| פין 37 | RE1/WR — Port E bit 1 / LCD write strobe |
| פין 38 | RE2/CS — Port E bit 2 / LCD chip select |
| פין 39 | SEG0 — LCD segment output 0 |
| פין 40 | SEG1 — LCD segment output 1 |
| פין 41 | SEG2 — LCD segment output 2 |
| פין 42 | SEG3 — LCD segment output 3 |
| פין 43 | SEG4 — LCD segment output 4 |
| פין 44 | SEG5 — LCD segment output 5 |
| פין 45 | SEG6 — LCD segment output 6 |
| פין 46 | SEG7 — LCD segment output 7 |
| פין 47 | SEG8 — LCD segment output 8 |
| פין 48 | SEG9 — LCD segment output 9 |
| פין 49 | SEG10 — LCD segment output 10 |
| פין 50 | SEG11 — LCD segment output 11 |
| פין 51 | SEG12 — LCD segment output 12 |
| פין 52 | SEG13 — LCD segment output 13 |
| פין 53 | SEG14 — LCD segment output 14 |
| פין 54 | SEG15 — LCD segment output 15 |
| פין 55 | SEG16 — LCD segment output 16 |
| פין 56 | SEG17 — LCD segment output 17 |
| פין 57 | SEG18 — LCD segment output 18 |
| פין 58 | SEG19 — LCD segment output 19 |
| פין 59 | SEG20 — LCD segment output 20 |
| פין 60 | SEG21 — LCD segment output 21 |
| פין 61 | SEG22 — LCD segment output 22 |
| פין 62 | SEG23 — LCD segment output 23 |
| פין 63 | SEG24 — LCD segment output 24 |
| פין 64 | SEG25 — LCD segment output 25 |
| פין 65 | SEG26/SEG28 — LCD segment output 26/28 (alternating) |
| פין 66 | SEG27/SEG31 — LCD segment output 27/31 (alternating) |
| פין 67 | COM0 — LCD common output 0 |
| פין 68 | COM1 — LCD common output 1 |
יישומים טיפוסיים
PIC16C924-08/L מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16C924-08/L — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- Integrated 32-segment x 4-common LCD driver (לעומתPIC16C77-10I/P)
- 5-channel 8-bit ADC on-chip (לעומתPIC16C923-08I/L)
- 68-pin PLCC with 52 digital I/Os (לעומתPIC16F877A-I/P)
הערות תכנון
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.
מידע על תאימות
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.
