PIC16C924-08/L - 8-Bit MCU w/ LCD Driver, 7KB OTP, 68-PLCC | Microchip
MPN: PIC16C924-08/L ✗ Cuối đờiPIC16C924-08/L Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC16C924-08/L — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C924-08/L (cùng hình factor và footprint) — khác nhau ở LCD Driver, Package, Operating Temperature, Timers, Mounting Type.
PIC16C924-04I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C924/CL
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C923-08I/L
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C923T-08I/L
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C923-04I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C924-08/L Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 176 bytes |
| Tần số xung maksimum | 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 |
| Hộp | 68-PLCC (24.23 x 24.23 mm) windowless |
| Kiểu lắp đặt | Surface Mount (J-Lead) |
| Instruction Set | 35 single-word instructions |
Cấu hình chân PIC16C924-08/L
| Chân 1 | MCLR/Vpp — Master Clear reset (active low) / programming voltage input |
| Chân 2 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 3 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Chân 4 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 5 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 6 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 7 | RA3/AN3/Vref — Port A bit 3 / analog input 3 / ADC reference |
| Chân 8 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Chân 9 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| Chân 10 | Vss — Ground reference |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 13 | RB1 — Port B bit 1 |
| Chân 14 | RB2 — Port B bit 2 |
| Chân 15 | RB3 — Port B bit 3 |
| Chân 16 | RB4 — Port B bit 4 |
| Chân 17 | RB5 — Port B bit 5 |
| Chân 18 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 19 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 20 | RC0 — Port C bit 0 |
| Chân 21 | RC1 — Port C bit 1 |
| Chân 22 | RC2 — Port C bit 2 |
| Chân 23 | RC3/SCL/SCK — Port C bit 3 / I2C clock / SPI clock |
| Chân 24 | RC4/SDA/SDI — Port C bit 4 / I2C data / SPI data in |
| Chân 25 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 26 | RC6 — Port C bit 6 |
| Chân 27 | RC7 — Port C bit 7 |
| Chân 28 | RD0 — Port D bit 0 |
| Chân 29 | RD1 — Port D bit 1 |
| Chân 30 | RD2 — Port D bit 2 |
| Chân 31 | RD3 — Port D bit 3 |
| Chân 32 | RD4 — Port D bit 4 |
| Chân 33 | RD5 — Port D bit 5 |
| Chân 34 | RD6 — Port D bit 6 |
| Chân 35 | RD7 — Port D bit 7 |
| Chân 36 | RE0/RD — Port E bit 0 / LCD register select |
| Chân 37 | RE1/WR — Port E bit 1 / LCD write strobe |
| Chân 38 | RE2/CS — Port E bit 2 / LCD chip select |
| Chân 39 | SEG0 — LCD segment output 0 |
| Chân 40 | SEG1 — LCD segment output 1 |
| Chân 41 | SEG2 — LCD segment output 2 |
| Chân 42 | SEG3 — LCD segment output 3 |
| Chân 43 | SEG4 — LCD segment output 4 |
| Chân 44 | SEG5 — LCD segment output 5 |
| Chân 45 | SEG6 — LCD segment output 6 |
| Chân 46 | SEG7 — LCD segment output 7 |
| Chân 47 | SEG8 — LCD segment output 8 |
| Chân 48 | SEG9 — LCD segment output 9 |
| Chân 49 | SEG10 — LCD segment output 10 |
| Chân 50 | SEG11 — LCD segment output 11 |
| Chân 51 | SEG12 — LCD segment output 12 |
| Chân 52 | SEG13 — LCD segment output 13 |
| Chân 53 | SEG14 — LCD segment output 14 |
| Chân 54 | SEG15 — LCD segment output 15 |
| Chân 55 | SEG16 — LCD segment output 16 |
| Chân 56 | SEG17 — LCD segment output 17 |
| Chân 57 | SEG18 — LCD segment output 18 |
| Chân 58 | SEG19 — LCD segment output 19 |
| Chân 59 | SEG20 — LCD segment output 20 |
| Chân 60 | SEG21 — LCD segment output 21 |
| Chân 61 | SEG22 — LCD segment output 22 |
| Chân 62 | SEG23 — LCD segment output 23 |
| Chân 63 | SEG24 — LCD segment output 24 |
| Chân 64 | SEG25 — LCD segment output 25 |
| Chân 65 | SEG26/SEG28 — LCD segment output 26/28 (alternating) |
| Chân 66 | SEG27/SEG31 — LCD segment output 27/31 (alternating) |
| Chân 67 | COM0 — LCD common output 0 |
| Chân 68 | COM1 — LCD common output 1 |
Ứng dụng tiêu biểu
PIC16C924-08/L phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C924-08/L — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Integrated 32-segment x 4-common LCD driver (vsPIC16C77-10I/P)
- 5-channel 8-bit ADC on-chip (vsPIC16C923-08I/L)
- 68-pin PLCC with 52 digital I/Os (vsPIC16F877A-I/P)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
