PIC16C924-08/L - 8-Bit MCU w/ LCD Driver, 7KB OTP, 68-PLCC | Microchip
MPN: PIC16C924-08/L ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.45 | $10,450.00 |
PIC16C924-08/L Overview
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.
Drop-in alternatives for PIC16C924-08/L — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16C924-08/L (same form factor and footprint) — differing in LCD Driver, Package, Operating Temperature, Timers, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C924-04I/L
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PIC16C924/CL
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$14.2 / Unit
View Datasheet →PIC16C923-08I/L
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.75 / Unit
View Datasheet →PIC16C923T-08I/L
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.4 / Unit
View Datasheet →PIC16C923-04I/PT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$8.2 / Unit
View Datasheet →PIC16C924-08/L Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 176 bytes |
| Maximum Clock Frequency | 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 |
| Package | 68-PLCC (24.23 x 24.23 mm) windowless |
| Mounting Type | Surface Mount (J-Lead) |
| Instruction Set | 35 single-word instructions |
PIC16C924-08/L Pin Configuration
| Pin 1 | MCLR/Vpp — Master Clear reset (active low) / programming voltage input |
| Pin 2 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 3 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 4 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Pin 5 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Pin 6 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Pin 7 | RA3/AN3/Vref — Port A bit 3 / analog input 3 / ADC reference |
| Pin 8 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Pin 9 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| Pin 10 | Vss — Ground reference |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | RB0/INT — Port B bit 0 / external interrupt |
| Pin 13 | RB1 — Port B bit 1 |
| Pin 14 | RB2 — Port B bit 2 |
| Pin 15 | RB3 — Port B bit 3 |
| Pin 16 | RB4 — Port B bit 4 |
| Pin 17 | RB5 — Port B bit 5 |
| Pin 18 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 19 | RB7/PGD — Port B bit 7 / ICSP data |
| Pin 20 | RC0 — Port C bit 0 |
| Pin 21 | RC1 — Port C bit 1 |
| Pin 22 | RC2 — Port C bit 2 |
| Pin 23 | RC3/SCL/SCK — Port C bit 3 / I2C clock / SPI clock |
| Pin 24 | RC4/SDA/SDI — Port C bit 4 / I2C data / SPI data in |
| Pin 25 | RC5/SDO — Port C bit 5 / SPI data out |
| Pin 26 | RC6 — Port C bit 6 |
| Pin 27 | RC7 — Port C bit 7 |
| Pin 28 | RD0 — Port D bit 0 |
| Pin 29 | RD1 — Port D bit 1 |
| Pin 30 | RD2 — Port D bit 2 |
| Pin 31 | RD3 — Port D bit 3 |
| Pin 32 | RD4 — Port D bit 4 |
| Pin 33 | RD5 — Port D bit 5 |
| Pin 34 | RD6 — Port D bit 6 |
| Pin 35 | RD7 — Port D bit 7 |
| Pin 36 | RE0/RD — Port E bit 0 / LCD register select |
| Pin 37 | RE1/WR — Port E bit 1 / LCD write strobe |
| Pin 38 | RE2/CS — Port E bit 2 / LCD chip select |
| Pin 39 | SEG0 — LCD segment output 0 |
| Pin 40 | SEG1 — LCD segment output 1 |
| Pin 41 | SEG2 — LCD segment output 2 |
| Pin 42 | SEG3 — LCD segment output 3 |
| Pin 43 | SEG4 — LCD segment output 4 |
| Pin 44 | SEG5 — LCD segment output 5 |
| Pin 45 | SEG6 — LCD segment output 6 |
| Pin 46 | SEG7 — LCD segment output 7 |
| Pin 47 | SEG8 — LCD segment output 8 |
| Pin 48 | SEG9 — LCD segment output 9 |
| Pin 49 | SEG10 — LCD segment output 10 |
| Pin 50 | SEG11 — LCD segment output 11 |
| Pin 51 | SEG12 — LCD segment output 12 |
| Pin 52 | SEG13 — LCD segment output 13 |
| Pin 53 | SEG14 — LCD segment output 14 |
| Pin 54 | SEG15 — LCD segment output 15 |
| Pin 55 | SEG16 — LCD segment output 16 |
| Pin 56 | SEG17 — LCD segment output 17 |
| Pin 57 | SEG18 — LCD segment output 18 |
| Pin 58 | SEG19 — LCD segment output 19 |
| Pin 59 | SEG20 — LCD segment output 20 |
| Pin 60 | SEG21 — LCD segment output 21 |
| Pin 61 | SEG22 — LCD segment output 22 |
| Pin 62 | SEG23 — LCD segment output 23 |
| Pin 63 | SEG24 — LCD segment output 24 |
| Pin 64 | SEG25 — LCD segment output 25 |
| Pin 65 | SEG26/SEG28 — LCD segment output 26/28 (alternating) |
| Pin 66 | SEG27/SEG31 — LCD segment output 27/31 (alternating) |
| Pin 67 | COM0 — LCD common output 0 |
| Pin 68 | COM1 — LCD common output 1 |
Typical Applications
PIC16C924-08/L is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C924-08/L — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Integrated 32-segment x 4-common LCD driver (vs PIC16C77-10I/P)
- 5-channel 8-bit ADC on-chip (vs PIC16C923-08I/L)
- 68-pin PLCC with 52 digital I/Os (vs PIC16F877A-I/P)
Design Notes
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.
Compliance Information
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.
