PIC16C924T-08/PT - 8MHz 8-Bit OTP MCU w/ LCD Driver | Microchip | 64-TQFP
MPN: PIC16C924T-08/PT ✗ Cuối đờiPIC16C924T-08/PT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC16C924T-08/PT — 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 PIC16C924T-08/PT (cùng hình factor và footprint) — khác nhau ở Timers, Instruction Cycle Time, LCD Driver, Package, Program Memory Type.
PIC16C924-08/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F914-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F946-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C923T-04I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C923T-08I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C924T-08/PT Tỷ lệ tối đa & tính chất điện
| 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 |
| Tần số xung maksimum | 8 MHz |
| Instruction Cycle Time | 500 ns |
| Điện áp cung cấp | 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 |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Operating Temperature Grade | Commercial |
| Terminal Form | Gull Wing |
| Number of Terminals | 64 |
Cấu hình chân PIC16C924T-08/PT
| Chân 1 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 2 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 3 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 4 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / VREF+ |
| Chân 5 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 6 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| Chân 7 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Chân 8 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Chân 9 | MCLR/VPP — Master clear reset / programming voltage |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply (5V) |
| 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 — Port B bit 6 |
| Chân 19 | RB7 — Port B bit 7 |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply (5V) |
| Chân 22 | RC0 — Port C bit 0 |
| Chân 23 | RC1 — Port C bit 1 |
| Chân 24 | RC2 — Port C bit 2 |
| Chân 25 | RC3 — Port C bit 3 |
| Chân 26 | RC4 — Port C bit 4 |
| Chân 27 | RC5 — Port C bit 5 |
| Chân 28 | RC6 — Port C bit 6 |
| Chân 29 | RC7 — Port C bit 7 |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply (5V) |
| Chân 32 | RD0 — Port D bit 0 |
| Chân 33 | RD1 — Port D bit 1 |
| Chân 34 | RD2 — Port D bit 2 |
| Chân 35 | RD3 — Port D bit 3 |
| Chân 36 | RD4 — Port D bit 4 |
| Chân 37 | RD5 — Port D bit 5 |
| Chân 38 | RD6 — Port D bit 6 |
| Chân 39 | RD7 — Port D bit 7 |
| Chân 40 | VSS — Ground reference |
| Chân 41 | VDD — Positive supply (5V) |
| Chân 42 | RE0 — Port E bit 0 |
| Chân 43 | RE1 — Port E bit 1 |
| Chân 44 | RE2 — Port E bit 2 |
| Chân 45 | AVSS — Analog ground reference |
| Chân 46 | AVDD — Analog positive supply (5V) |
| Chân 47 | SEG0 — LCD segment output 0 |
| Chân 48 | SEG1 — LCD segment output 1 |
| Chân 49 | SEG2 — LCD segment output 2 |
| Chân 50 | SEG3 — LCD segment output 3 |
| Chân 51 | SEG4 — LCD segment output 4 |
| Chân 52 | SEG5 — LCD segment output 5 |
| Chân 53 | SEG6 — LCD segment output 6 |
| Chân 54 | SEG7 — LCD segment output 7 |
| Chân 55 | COM0 — LCD common output 0 (backplane) |
| Chân 56 | COM1 — LCD common output 1 (backplane) |
| Chân 57 | COM2 — LCD common output 2 (backplane) |
| Chân 58 | COM3 — LCD common output 3 (backplane) |
| Chân 59 | SEG8 — LCD segment output 8 |
| Chân 60 | SEG9 — LCD segment output 9 |
| Chân 61 | SEG10 — LCD segment output 10 |
| Chân 62 | SEG11 — LCD segment output 11 |
| Chân 63 | SEG12 — LCD segment output 12 |
| Chân 64 | SEG13 — LCD segment output 13 |
Ứng dụng tiêu biểu
PIC16C924T-08/PT phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C924T-08/PT — 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 | PIC16C924-08/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 |
Bảo phân biệt quan trọng
- Integrated on-chip LCD segment driver with 32 segments x 4 commons (vsGeneric PIC16F877 (no LCD driver))
- Largest OTP memory in the PIC16C92x LCD-driver sub-family (vsPIC16C923T-08I/L (4 KB OTP))
- Harvard RISC architecture with 35 single-word instructions (vs8051-based LCD MCUs (e.g., some Holtek parts))
- Tape-and-reel packaging variant (T suffix) for SMT production (vsPIC16C924-08/PT (tray packaging))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
