PIC17C762-33/L - 8-Bit 33MHz OTP MCU 16KB 84-PLCC | Microchip
MPN: PIC17C762-33/L ✗ Cuối đờiPIC17C762-33/L Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a rich set of peripherals (timers, ADC, communication ports, GPIO) onto one silicon die. The PIC17C family was Microchip's first high-end 8-bit architecture, positioned above the PIC16C midrange family by offering wider 16-bit instruction words, an expanded register set, an external memory interface, and higher pin counts for embedded applications requiring more I/O than midrange MCUs could deliver. OTP (One-Time Programmable) variants such as the PIC17C762 are intended for low-to-medium volume production where masked-ROM economics are not justified.
The PIC17C762-33/L offers 58 single-word instructions, a single-cycle hardware multiplier (8 x 8 in one instruction cycle), multiple interrupt sources, a USART, an MSSP (Master Synchronous Serial Port), and capture/compare/PWM modules. The 10-bit ADC is suitable for mixed-signal designs, and the 66 I/O lines support extensive parallel interfaces. Operating supply voltage is 4.5 V to 5.5 V, suitable for 5 V industrial and commercial environments.
Typical applications include industrial control systems, motor control front-ends, instrumentation, and legacy embedded designs originally migrated from PIC16C/PIC17C development. The wide PLCC-84 footprint and rich peripheral set made the PIC17C762 a frequent choice for printers, automotive body controllers, and process-control boards.
When designing with the PIC17C762-33/L, ensure in-circuit programming access (ICP) and consider that OTP memory cannot be erased, so production programming and verification must be rigorous. Use decoupling capacitors near each supply pin, and follow Microchip's PIC17C family reference design for oscillator layout and ADC analog routing.
This page synthesizes distributor pricing, current lifecycle status, same-package alternatives (PIC17C752T-33/L, PIC17C756A series), and practical design notes for engineers sourcing the PIC17C762-33/L, supplementing the manufacturer datasheet with selection guidance.
Bộ thay thế dễ dàng lắp đặt cho PIC17C762-33/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 PIC17C762-33/L (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Program Memory Type, Core Architecture, Instruction Cycle Time.
PIC17C756A-33E/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756AT-33E/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756AT-33I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C752T-33/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-33I/L
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC17C762T-33/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-33/L Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC17C (8-bit) |
| Clock Frequency | 33 MHz |
| Instruction Cycle | 121 ns (8.25 MIPS) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 16 KB (8K x 16) |
| Data RAM | 678 bytes |
| I/O Pins | 66 |
| ADC | 10-bit |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| Hộp | 84-PLCC (29.31 x 29.31 mm) |
| Kiểu lắp đặt | Surface Mount |
| Instruction Set | 58 single-word instructions |
| Hardware Multiplier | 8 x 8 single-cycle |
| Communication | USART, MSSP (SPI/I2C) |
| Peripherals | Capture/Compare/PWM, Timers, ADC |
Cấu hình chân PIC17C762-33/L
| 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 — Port A bit 3 / Analog input 3 |
| Chân 5 | VDD — Positive supply voltage (4.5V-5.5V) |
| Chân 6 | RA4/AN4 — Port A bit 4 / Analog input 4 |
| Chân 7 | RA5/AN5 — Port A bit 5 / Analog input 5 |
| Chân 8 | RA6/OSC1 — Port A bit 6 / Crystal oscillator input |
| Chân 9 | RA7/OSC2 — Port A bit 7 / Crystal oscillator output |
| Chân 10 | VSS — Ground reference |
| Chân 11 | RB0/INT — Port B bit 0 / External interrupt |
| Chân 12 | RB1 — Port B bit 1 |
| Chân 13 | RB2 — Port B bit 2 |
| Chân 14 | RB3 — Port B bit 3 |
| Chân 15 | RB4 — Port B bit 4 |
| Chân 16 | RB5 — Port B bit 5 |
| Chân 17 | RB6 — Port B bit 6 |
| Chân 18 | RB7 — Port B bit 7 |
| Chân 19 | RC0 — Port C bit 0 |
| Chân 20 | RC1 — Port C bit 1 |
| Chân 21 | RC2 — Port C bit 2 |
| Chân 22 | RC3 — Port C bit 3 |
| Chân 23 | RC4 — Port C bit 4 |
| Chân 24 | RC5 — Port C bit 5 |
| Chân 25 | RC6 — Port C bit 6 |
| Chân 26 | RC7 — Port C bit 7 |
| Chân 27 | RD0 — Port D bit 0 |
| Chân 28 | RD1 — Port D bit 1 |
| Chân 29 | RD2 — Port D bit 2 |
| Chân 30 | RD3 — Port D bit 3 |
| Chân 31 | RD4 — Port D bit 4 |
| Chân 32 | RD5 — Port D bit 5 |
| Chân 33 | RD6 — Port D bit 6 |
| Chân 34 | RD7 — Port D bit 7 |
| Chân 35 | RE0 — Port E bit 0 |
| Chân 36 | RE1 — Port E bit 1 |
| Chân 37 | RE2 — Port E bit 2 |
| Chân 38 | RE3 — Port E bit 3 |
| Chân 39 | RE4 — Port E bit 4 |
| Chân 40 | RE5 — Port E bit 5 |
| Chân 41 | RE6 — Port E bit 6 |
| Chân 42 | RE7 — Port E bit 7 |
| Chân 43 | RF0 — Port F bit 0 |
| Chân 44 | RF1 — Port F bit 1 |
| Chân 45 | RF2 — Port F bit 2 |
| Chân 46 | RF3 — Port F bit 3 |
| Chân 47 | RF4 — Port F bit 4 |
| Chân 48 | RF5 — Port F bit 5 |
| Chân 49 | RF6 — Port F bit 6 |
| Chân 50 | RF7 — Port F bit 7 |
| Chân 51 | RG0 — Port G bit 0 |
| Chân 52 | RG1 — Port G bit 1 |
| Chân 53 | RG2 — Port G bit 2 |
| Chân 54 | RG3 — Port G bit 3 |
| Chân 55 | RG4 — Port G bit 4 |
| Chân 56 | MCLR — Master Clear (reset) input |
| Chân 57 | VDD — Positive supply voltage |
| Chân 58 | VSS — Ground |
| Chân 59 | XTAL1 — Crystal oscillator input |
| Chân 60 | XTAL2 — Crystal oscillator output |
| Chân 61 | TOCKI — Timer 0 clock input |
| Chân 62 | CCP1 — Capture/Compare/PWM 1 |
| Chân 63 | CCP2 — Capture/Compare/PWM 2 |
| Chân 64 | TX/CK — USART asynchronous transmit / synchronous clock |
| Chân 65 | RX/DT — USART asynchronous receive / synchronous data |
| Chân 66 | SCLK — MSSP serial clock (SPI/I2C) |
| Chân 67 | SDI/SDA — MSSP serial data in (SPI) / data (I2C) |
| Chân 68 | SDO — MSSP serial data out (SPI) |
| Chân 69 | SS — MSSP slave select (SPI) |
| Chân 70 | AN6 — Analog input 6 |
| Chân 71 | AN7 — Analog input 7 |
| Chân 72 | AN8 — Analog input 8 |
| Chân 73 | AN9 — Analog input 9 |
| Chân 74 | AN10 — Analog input 10 |
| Chân 75 | AN11 — Analog input 11 |
| Chân 76 | NC — Not connected (per datasheet) |
| Chân 77 | NC — Not connected (per datasheet) |
| Chân 78 | NC — Not connected (per datasheet) |
| Chân 79 | NC — Not connected (per datasheet) |
| Chân 80 | NC — Not connected (per datasheet) |
| Chân 81 | NC — Not connected (per datasheet) |
| Chân 82 | VDD — Positive supply voltage |
| Chân 83 | VSS — Ground |
| Chân 84 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC17C762-33/L phù hợp cho 7 Áp dụngs: Industrial Process Control, Motor Control Front-End, Legacy Embedded Equipment Maintenance, Printer and Display Controllers, Automotive Body Electronics, Instrumentation and Data Acquisition, Educational and Development Boards.
Industrial Process Control
The PIC17C762-33/L's 66 I/O pins, 10-bit ADC, and 8.25 MIPS throughput make it well suited for industrial process control applications. Its 5 V supply tolerance (4.5 V to 5.5 V) aligns with legacy industrial backplanes, while 678 bytes of RAM supports sensor acquisition buffers. With 16 KB of OTP program memory, the MCU handles PID control loops, alarm monitoring, and HMI key handling. Designers should pair this part with external digital isolation and opto-couplers for industrial-grade noise immunity, leveraging the PIC17C family reference designs from Microchip.
Được đề xuất
Motor Control Front-End
For motor control front-end tasks, the PIC17C762-33/L provides Capture/Compare/PWM (CCP) modules and a fast 121 ns instruction cycle, enabling precise PWM generation for BLDC and stepper motor commutation. Its 33 MHz clock supports up to 33 MHz PWM resolution with adequate software margin for feedback control. The 10-bit ADC reads back current and voltage sensing. Engineers typically pair this MCU with a PIC17C756A upgrade when adding FOC algorithms, and use external gate drivers such as the MCP1416 to drive power MOSFETs in the H-bridge.
Được đề xuất
Legacy Embedded Equipment Maintenance
The PIC17C762-33/L remains functional for maintaining installed legacy embedded equipment that was originally designed around the PIC17C core. Because OTP memory is one-time programmable, field upgrades require module replacement rather than firmware flashing. The 84-PLCC package is socket-compatible, simplifying board swaps. Engineers servicing old industrial controllers, printers, or scientific instruments can use this part as a direct replacement, ordering from distributors like DigiKey or Mouser that maintain obsolete-stock channels. Plan for PIC17C756A upgrades when the legacy design permits.
Được đề xuất
Printer and Display Controllers
The PIC17C762-33/L's 66 I/O pins and high-speed serial peripherals (USART, MSSP) suit printer controller and display driver boards. Its 8.25 MIPS performance handles character rendering, stepper motor control for paper feed, and parallel interface protocols for LCD or VFD displays. The 16 KB program memory holds font tables and command parsing routines. Designers use the PIC17C family reference design for parallel port multiplexing and stepper sequencing, often paired with the PIC17C756A when more complex raster image processing is required.
Được đề xuất
Automotive Body Electronics
Although the PIC17C762-33/L is not AEC-Q100 qualified, it has historically been used in non-safety automotive body electronics such as HVAC controllers, seat controllers, and dashboard illumination drivers. The 5 V supply, 33 MHz clock, and 66 I/O pins support multiplexed body wiring, PWM dimming, and LIN/CAN bridge functions. For new automotive designs, however, Microchip recommends PIC18F8520 or PIC18F46K22 with proper AEC-Q100 qualification. The PIC17C762-33/L is suitable for service replacement of installed units only.
Được đề xuất
Instrumentation and Data Acquisition
The PIC17C762-33/L's 10-bit ADC and ample 66 I/O pins enable multi-channel data acquisition front-ends for instrumentation. Its 121 ns instruction cycle supports real-time sampling of up to 8 channels at moderate rates, with 678 bytes of RAM providing sample buffering. The MSSP peripheral allows SPI communication with high-resolution external ADCs when higher precision is required. Pair the MCU with op-amp signal conditioning and an SPI ADC for 16-bit measurement systems, using the PIC17C756A upgrade path when more code space is needed for advanced DSP algorithms.
Được đề xuất
Educational and Development Boards
The PIC17C762-33/L is occasionally used in educational settings to teach 8-bit MCU architecture, OTP programming workflows, and PIC17C family peripheral usage. Its 84-PLCC socket-mounting simplifies prototype replacement, and the 33 MHz clock provides realistic performance for student projects. Instructors can demonstrate ADC, PWM, and USART using Microchip's PIC17C reference design examples. However, for new educational curricula, the PIC18F or dsPIC33 families are recommended due to modern peripherals, in-circuit debug support, and active product status.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17C762-33/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 | PIC17C756A-33E/L | PIC17C756AT-33E/L | PIC17C756AT-33I/L | PIC17C752T-33/L |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 84-PLCC (29.31 x 29.31 mm) | 84-PLCC (29.31 x 29.31 mm) | 84-PLCC (29.31 x 29.31 mm) | 84-PLCC (29.31 x 29.31 mm) | 84-PLCC (29.31 x 29.31 mm) |
| Core Architecture | PIC17C (8-bit) | PIC17C (8-bit) | PIC17C (8-bit) | PIC17C (8-bit) | PIC17C (8-bit) |
| Clock Frequency | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz |
| Program Memory | 16 KB OTP | 32 KB OTP | 32 KB OTP | 32 KB OTP | 16 KB OTP |
| Data RAM | 678 bytes | 902 bytes (PIC17C756A family) | 902 bytes | 902 bytes | 678 bytes |
| I/O Pins | 66 | 66 | 66 | 66 | 66 |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Higher program memory than PIC17C752 in same package (vsPIC17C752T-33/L)
- Compatible memory-upgrade path via PIC17C756A (vsPIC17C756A-33E/L)
- Microchip legacy support for installed base (vsPIC18F8520 (recommended successor))
Ghi chú thiết kế
Decoupling: Place 100 nF ceramic capacitors as close as possible to every VDD pin (pins 5, 57, 82) and a single 10 uF bulk capacitor on the supply rail. The PIC17C762-33/L draws up to ~100 mA at 33 MHz with all peripherals active, so sufficient bulk capacitance prevents supply droop during ADC conversions and PWM switching events. According to Microchip's PIC17C family hardware design guidelines, inadequate decoupling is the most common cause of ADC noise and PLL instability.
OTP Memory Programming: The PIC17C762-33/L uses One-Time Programmable (OTP) memory, which cannot be erased after programming. Always verify firmware using a windowed or flash sibling part (such as PIC17C756A or PIC18F8520) before committing to OTP production. Verify code checksum, configuration bits, and oscillator settings before the final programming pass to avoid bricking units. In-circuit programming (ICP) requires careful MCLR/VPP sequencing per the datasheet.
Thermal Management: At 33 MHz with all peripherals active, the PLCC-84 package dissipates approximately 0.5 W to 1 W depending on I/O loading. The plastic PLCC package has a theta_JA of approximately 35-40 C/W, so junction temperature rise above ambient is around 20-40 C. Industrial environments (up to 85 C ambient) keep junction well below the 125 C maximum, but enclosed or stacked designs should add thermal vias under the PLCC pad for improved heat spreading.
Thông tin tuân thủ
Compliance status not specified in the verified web data; the part is obsolete so modern compliance documentation may not be available. Refer to Microchip product page for legacy compliance statements.
