PIC16C924T-08/PT - 8MHz 8-Bit OTP MCU w/ LCD Driver | Microchip | 64-TQFP
N.º de pieza: PIC16C924T-08/PT ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $17.2 | $172,00 |
| 100 | $15.4 | $1.540,00 |
| 500 | $13.95 | $6.975,00 |
| 1.000 | $12.6 | $12.600,00 |
PIC16C924T-08/PT Descripción general
What is a PIC16C microcontroller? PIC16C is a legacy OTP (One-Time-Programmable) family of 8-bit CMOS microcontrollers built on Microchip's RISC (Reduced Instruction Set Computing) architecture. Within the wider taxonomy, PIC16C is a sub-family of the PICmicro MCU family, which itself belongs to microcontrollers (MCUs) under embedded processors and finally to integrated circuits (semiconductors). These OTP parts are typically used in volume commercial products where firmware is finalized at production time.
Key features of the PIC16C924T-08/PT include 33 general-purpose I/O lines, an integrated LCD driver supporting segment drive, 8-bit timer/counter modules, a Watchdog Timer, low-power SLEEP mode, and an operating speed of DC to 8 MHz. The device has 192 bytes of on-chip data RAM and an enhanced instruction set including multiplication, which together ease the implementation of user interfaces with displays.
From an architectural perspective, the PIC16C924 uses Harvard architecture with separate program and data buses, 14-bit-wide instructions, and only 35 single-word instructions to learn - significantly reducing code complexity. The integrated LCD driver and segment logic allow direct connection to a glass LCD without external driver ICs, reducing BOM and PCB area in display-equipped products.
Typical applications include consumer appliances with LCD readouts, white-goods control panels, instrumentation front panels, industrial operator interfaces, and any embedded product that requires a low-pin-count human-machine interface. The integrated LCD peripheral is the defining feature that makes this device attractive versus general-purpose MCUs.
When designing with this part, note that OTP memory cannot be re-programmed - firmware must be fully validated before commitment. Always verify the 64-TQFP PCB footprint against the mechanical drawing in the manufacturer datasheet and add proper decoupling (100 nF plus bulk) close to VDD/AVDD pins. This page combines distributor pricing, drop-in alternatives, and design notes that complement (not duplicate) the manufacturer datasheet.
Alternativas directas para PIC16C924T-08/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16C924T-08/PT (mismo factor de forma y huella) — difiere en Timers, Instruction Cycle Time, LCD Driver, Package, Program Memory Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16C924-08/PT
✅ Sustitución directa✓ En stock
$5.21 / unidad
Ver hoja de datos →PIC16F914-I/PT
✅ Sustitución directa✓ En stock
$2.98 / unidad
Ver hoja de datos →PIC16F946-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16C923T-04I/L
✅ Sustitución directa✓ En stock
$5.31 / unidad
Ver hoja de datos →PIC16C923T-08I/L
✅ Sustitución directa✓ En stock
$5.4 / unidad
Ver hoja de datos →PIC16C924T-08/PT Valores máximos y características eléctricas
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC16C series |
| Instruction Set Width | 14-bit |
| Program Memory Type | OTP (One-Time-Programmable EPROM) |
| Program Memory Size | 7 KB (4K x 14) |
| Data RAM | 192 bytes |
| Frecuencia de reloj máxima | 8 MHz |
| Instruction Cycle Time | 500 ns |
| Tensión de alimentación | 5 V |
| I/O Pins | 33 |
| LCD Driver | Integrated on-chip segment LCD driver |
| Timers | 8-bit Timer/Counter modules |
| Watchdog Timer | Yes (on-chip) |
| Low-Power Mode | SLEEP mode |
| Encapsulado | 64-pin TQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Operating Temperature Grade | Commercial |
| Terminal Form | Gull Wing |
| Number of Terminals | 64 |
Configuración de pines de PIC16C924T-08/PT
| Pin 1 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Pin 2 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Pin 3 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Pin 4 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / VREF+ |
| Pin 5 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Pin 6 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| Pin 7 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Pin 8 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Pin 9 | MCLR/VPP — Master clear reset / programming voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply (5V) |
| 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 — Port B bit 6 |
| Pin 19 | RB7 — Port B bit 7 |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply (5V) |
| Pin 22 | RC0 — Port C bit 0 |
| Pin 23 | RC1 — Port C bit 1 |
| Pin 24 | RC2 — Port C bit 2 |
| Pin 25 | RC3 — Port C bit 3 |
| Pin 26 | RC4 — Port C bit 4 |
| Pin 27 | RC5 — Port C bit 5 |
| Pin 28 | RC6 — Port C bit 6 |
| Pin 29 | RC7 — Port C bit 7 |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply (5V) |
| Pin 32 | RD0 — Port D bit 0 |
| Pin 33 | RD1 — Port D bit 1 |
| Pin 34 | RD2 — Port D bit 2 |
| Pin 35 | RD3 — Port D bit 3 |
| Pin 36 | RD4 — Port D bit 4 |
| Pin 37 | RD5 — Port D bit 5 |
| Pin 38 | RD6 — Port D bit 6 |
| Pin 39 | RD7 — Port D bit 7 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply (5V) |
| Pin 42 | RE0 — Port E bit 0 |
| Pin 43 | RE1 — Port E bit 1 |
| Pin 44 | RE2 — Port E bit 2 |
| Pin 45 | AVSS — Analog ground reference |
| Pin 46 | AVDD — Analog positive supply (5V) |
| Pin 47 | SEG0 — LCD segment output 0 |
| Pin 48 | SEG1 — LCD segment output 1 |
| Pin 49 | SEG2 — LCD segment output 2 |
| Pin 50 | SEG3 — LCD segment output 3 |
| Pin 51 | SEG4 — LCD segment output 4 |
| Pin 52 | SEG5 — LCD segment output 5 |
| Pin 53 | SEG6 — LCD segment output 6 |
| Pin 54 | SEG7 — LCD segment output 7 |
| Pin 55 | COM0 — LCD common output 0 (backplane) |
| Pin 56 | COM1 — LCD common output 1 (backplane) |
| Pin 57 | COM2 — LCD common output 2 (backplane) |
| Pin 58 | COM3 — LCD common output 3 (backplane) |
| Pin 59 | SEG8 — LCD segment output 8 |
| Pin 60 | SEG9 — LCD segment output 9 |
| Pin 61 | SEG10 — LCD segment output 10 |
| Pin 62 | SEG11 — LCD segment output 11 |
| Pin 63 | SEG12 — LCD segment output 12 |
| Pin 64 | SEG13 — LCD segment output 13 |
Aplicaciones típicas
PIC16C924T-08/PT es adecuado para 6 aplicacións: Consumer Appliance Control Panels, Industrial Operator Interfaces, Portable Instrumentation with LCD Readout, White-Goods User Interface Boards, Medical Device Front Panels, Educational and Hobby Electronics.
Consumer Appliance Control Panels
The PIC16C924T-08/PT's integrated LCD segment driver makes it ideal for appliance control panels such as microwave ovens, washing machines, and dishwashers. The on-chip driver directly multiplexes a 4-common x 32-segment glass LCD without an external driver IC, reducing BOM cost and PCB area. The 33 GPIO pins handle keypad scanning, relay drivers, and sensor inputs, while 7 KB OTP holds the user interface state machine plus safety logic. Single-cycle 500 ns instruction execution at 8 MHz is more than adequate for display refresh and user input polling.
Recomendado
Industrial Operator Interfaces
In industrial HMI panels, the PIC16C924T-08/PT drives the front-panel LCD while monitoring push-buttons, encoders, and status LEDs. The integrated LCD peripheral eliminates the need for an external Holtek or Epson LCD controller, and the Watchdog Timer plus SLEEP mode allow low-power standby operation between user interactions. The 5V supply and commercial temperature grade suit factory-floor enclosures. With 7 KB OTP, designers can encode multi-language menus, calibration routines, and diagnostic screens without external memory.
Recomendado
Portable Instrumentation with LCD Readout
Handheld digital multimeters, thermocouple meters, and process calibrators benefit from the PIC16C924T-08/PT's integrated LCD segment driver, which can directly drive a custom glass display showing measurements, units, and battery status. The 8 MHz CPU bandwidth is sufficient for 16-bit ADC polling, linearization math, and refresh of the LCD at 50-60 Hz without flicker. SLEEP mode drops current consumption between measurements, extending battery life in portable instruments. The 64-pin TQFP package is compact enough for slim handheld enclosures.
Recomendado
White-Goods User Interface Boards
Refrigerator, oven, and air-conditioner user-interface boards traditionally use the PIC16C924T-08/PT for its integrated segment LCD and sufficient GPIO for capacitive touch sensing and rotary encoder inputs. The Harvard RISC architecture and 14-bit instructions produce compact, deterministic code for time-critical UI tasks such as debounce and buzzer control. OTP memory locks the firmware at production, preventing post-sale tampering while keeping per-unit cost low. The commercial temperature grade covers indoor appliance environments.
Recomendado
Medical Device Front Panels
Low-risk medical devices such as blood-pressure monitors, infusion-pump keypads, and home-diagnostic meters use the PIC16C924T-08/PT to drive alphanumeric LCD readouts while maintaining the BOM simplicity required by cost-sensitive healthcare products. The integrated LCD peripheral replaces a separate driver chip, the Watchdog Timer provides fail-safe recovery, and the OTP memory enforces firmware lock-in for FDA traceability. The 5V analog-friendly supply simplifies interface to medical sensors and signal-conditioning circuits.
Recomendado
Educational and Hobby Electronics
Electronics education labs and hobbyist projects use the PIC16C924T-08/PT as a teaching platform for LCD multiplexing, RISC assembly programming, and embedded design fundamentals. The 35-instruction PIC16C instruction set is small enough to learn in a semester, while the integrated LCD driver demonstrates real-world peripheral integration. Hobbyists exploring display-equipped projects benefit from the 33 GPIO pins to add buttons, LEDs, and serial interfaces. Note that OTP programming requires a one-time programmer and UV eraser is not applicable.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16C924T-08/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16C924-08/PT | PIC16F914-I/PT | PIC16F946-I/PT | PIC16C923T-04I/L | PIC16C923T-08I/L |
|---|---|---|---|---|---|---|
| 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 | 64-pin TQFP (10x10 mm) - same | 68-pin PLCC (24.23x24.23) - different | 68-pin PLCC (24.23x24.23) - different |
| Program Memory Type | OTP (7 KB) | OTP (7 KB) | Flash (7 KB) | Flash (14 KB) | OTP (4 KB) | OTP (4 KB) |
| Program Memory Size | 7 KB (4K x 14) | 7 KB | 7 KB | 14 KB | 4 KB | 4 KB |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 20 MHz (higher) | 20 MHz (higher) | 4 MHz (lower) | 8 MHz |
| LCD Driver | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
| I/O Pins | 33 | 33 | 33 | 53 (more) | 33 | 33 |
| Lifecycle Status | Obsolete | Obsolete | Active | Active | Obsolete | Obsolete |
| Packaging Form | Tape & Reel (T suffix) | Tray (no T suffix) | Tray | Tray | Tape & Reel | Tape & Reel |
Diferenciadores clave
- Integrated on-chip LCD segment driver with 32 segments x 4 commons (frente a Generic PIC16F877 (no LCD driver))
- Largest OTP memory in the PIC16C92x LCD-driver sub-family (frente a PIC16C923T-08I/L (4 KB OTP))
- Harvard RISC architecture with 35 single-word instructions (frente a 8051-based LCD MCUs (e.g., some Holtek parts))
- Tape-and-reel packaging variant (T suffix) for SMT production (frente a PIC16C924-08/PT (tray packaging))
Notas de diseño
Decouple each VDD/AVDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, and add a single 10 uF bulk tantalum or ceramic capacitor on the supply rail near the MCU. The PIC16C924T-08/PT draws supply current peaks during LCD segment switching; insufficient decoupling causes LCD contrast drift and may corrupt the internal analog references. AVDD should be tied to VDD through a ferrite bead if the analog inputs are used.
The 64-pin TQFP package (10x10 mm body, 0.5 mm pitch) requires careful PCB land pattern and reflow profile. Use the Microchip-recommended land pattern (IPC-7351 nominal) and a no-clean lead-free reflow profile with peak temperature below 250 C. Keep LCD segment traces short and routed away from switching nodes to minimize capacitive coupling that produces ghost segments on the glass.
PIC16C924T-08/PT uses OTP program memory, which can be programmed only once; there is no UV-erase window. Validate firmware in a flash-based PIC16F914 prototype before committing to OTP production parts. The MCLR pin must be pulled high through a resistor (typically 10 kohm) for normal operation; leaving it floating prevents startup. The 'T' suffix denotes tape-and-reel packaging - the base PIC16C924-08/PT comes on a tray.
Oscillator traces for OSC1/OSC2 must be kept short and surrounded by a ground guard ring to avoid injecting noise into the LCD segment lines. For a 4 MHz or 8 MHz crystal, place load capacitors (typically 15-33 pF) close to the crystal pins. Avoid routing the COM0..COM3 backplane signals near high-impedance analog inputs to prevent 50/60 Hz display flicker from coupling into measurement channels.
Información de cumplimiento
Compliance information not present in the verified web data; values shown as 'unknown' per data-authenticity policy. Part is OTP (legacy) and not AEC-Q100 qualified. RoHS/REACH status should be confirmed with Microchip or distributor documentation before procurement.
