PIC17C762T-33/L - 8-Bit 33MHz OTP MCU, 16KB EPROM, 84-PLCC | Microchip
MPN: PIC17C762T-33/L ✗ Cuối đờiPIC17C762T-33/L Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data RAM, I/O, and peripherals on one die. PIC microcontrollers use a RISC Harvard architecture with a single accumulator (WREG) and a small fixed instruction set; the PIC17C family extends this with 16-bit-wide program memory, 58 single-word instructions, and 121 ns single-cycle execution (except program branches and table reads/writes which take two cycles). It belongs to the hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC.
Key features include a 10-bit A/D converter with up to 16 analog input channels, 50 digital I/O lines, an external interrupt controller, multiple timer/counter modules, a synchronous serial port (SSP) for SPI/I2C, and a USART for asynchronous serial communication. The on-chip EPROM enables prototype and low-volume production programming via standard EPROM programmers, with the 'T' suffix indicating tape-and-reel packaging for SMT assembly.
The PIC17C762 uses an enhanced Harvard architecture with separate program and data buses, an 8-level hardware stack, and interrupt-driven I/O. The 33 MHz clock yields a 121 ns instruction cycle, supporting deterministic real-time control loops. Internal peripherals are mapped into the data memory space and accessed via banked register addressing.
Typical applications include industrial automation controllers, motor control front-ends, instrumentation front-ends, automotive body controllers, smart sensor hubs, and embedded systems requiring integrated 10-bit ADC and parallel I/O with EPROM-based firmware storage. The wide operating voltage range of 4.5V to 5.5V supports TTL-compatible logic interfaces.
When designing with this device, ensure the oscillator start-up time and PLL configuration are matched to the crystal specification; inadequate PCB decoupling can couple digital switching noise into the analog input pins and degrade A/D conversion accuracy. Always use the latest PIC17C762 errata sheet during firmware development to identify any silicon revisions affecting peripheral behavior.
This page synthesizes distributor pricing, drop-in PIC17C762 family alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers an integrated view for sourcing and design-in decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC17C762T-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 PIC17C762T-33/L (cùng hình factor và footprint) — khác nhau ở Package, I/O Pins, Core Architecture, Data Bus Width, Mounting Type.
PIC17C762T-33I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-33I/L
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC17C762-33I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C752T-33/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756AT-33I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762T-33/L Tỷ lệ tối đa & tính chất điện
| Product Type | 8-Bit CMOS EPROM Microcontroller |
| Series | PIC 17C |
| Program Memory Size | 16 KB (8K x 16) OTP/EPROM |
| RAM Size | 678 bytes (per datasheet family) |
| Bề rộng đường dữ liệu | 8-bit (16-bit instruction) |
| Tần số xung maksimum | 33 MHz |
| Instruction Cycle Time | 121 ns (single-cycle, 2-cycle branches) |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| I/O Pins | 50 |
| A/D Converter | 10-bit, up to 16 channels |
| Timers | Multiple 8/16-bit timer/counters |
| Communication | SSP (SPI/I2C) + USART |
| Nhiệt độ hoạt động | 0C to +70C (Commercial) |
| Hộp | 84-PLCC (Plastic Leaded Chip Carrier, J-Lead) |
| Package Code | QCCJ (J-Lead) |
| Số chân | 84 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Non-Compliant (contains lead in PLCC) |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân PIC17C762T-33/L
| Chân 1 | OSC1 — Oscillator input |
| Chân 2 | OSC2 — Oscillator output |
| Chân 3 | MCLR — Master clear (reset) |
| Chân 4 | VSS — Ground |
| Chân 5 | VDD — Positive supply |
| Chân 6 | RA0 — I/O port A bit 0 |
| Chân 7 | RA1 — I/O port A bit 1 |
| Chân 8 | RA2 — I/O port A bit 2 |
| Chân 9 | RA3 — I/O port A bit 3 |
| Chân 10 | RA4 — I/O port A bit 4 |
| Chân 11 | RA5 — I/O port A bit 5 |
| Chân 12 | RA6 — I/O port A bit 6 |
| Chân 13 | RA7 — I/O port A bit 7 |
| Chân 14 | RB0 — I/O port B bit 0 |
| Chân 15 | RB1 — I/O port B bit 1 |
| Chân 16 | RB2 — I/O port B bit 2 |
| Chân 17 | RB3 — I/O port B bit 3 |
| Chân 18 | RB4 — I/O port B bit 4 |
| Chân 19 | RB5 — I/O port B bit 5 |
| Chân 20 | RB6 — I/O port B bit 6 |
| Chân 21 | RB7 — I/O port B bit 7 |
| Chân 22 | RC0 — I/O port C bit 0 / analog input |
| Chân 23 | RC1 — I/O port C bit 1 / analog input |
| Chân 24 | RC2 — I/O port C bit 2 / analog input |
| Chân 25 | RC3 — I/O port C bit 3 / analog input |
| Chân 26 | RC4 — I/O port C bit 4 / analog input |
| Chân 27 | RC5 — I/O port C bit 5 / analog input |
| Chân 28 | RC6 — I/O port C bit 6 / analog input |
| Chân 29 | RC7 — I/O port C bit 7 / analog input |
| Chân 30 | RD0 — I/O port D bit 0 / analog input |
| Chân 31 | RD1 — I/O port D bit 1 / analog input |
| Chân 32 | RD2 — I/O port D bit 2 / analog input |
| Chân 33 | RD3 — I/O port D bit 3 / analog input |
| Chân 34 | RD4 — I/O port D bit 4 / analog input |
| Chân 35 | RD5 — I/O port D bit 5 / analog input |
| Chân 36 | RD6 — I/O port D bit 6 / analog input |
| Chân 37 | RD7 — I/O port D bit 7 / analog input |
| Chân 38 | RE0 — I/O port E bit 0 |
| Chân 39 | RE1 — I/O port E bit 1 |
| Chân 40 | RE2 — I/O port E bit 2 |
| Chân 41 | RE3 — I/O port E bit 3 |
| Chân 42 | RE4 — I/O port E bit 4 |
| Chân 43 | RE5 — I/O port E bit 5 |
| Chân 44 | RE6 — I/O port E bit 6 |
| Chân 45 | RE7 — I/O port E bit 7 |
| Chân 46 | RF0 — I/O port F bit 0 |
| Chân 47 | RF1 — I/O port F bit 1 |
| Chân 48 | RF2 — I/O port F bit 2 |
| Chân 49 | RF3 — I/O port F bit 3 |
| Chân 50 | RF4 — I/O port F bit 4 |
| Chân 51 | RF5 — I/O port F bit 5 |
| Chân 52 | RF6 — I/O port F bit 6 |
| Chân 53 | RF7 — I/O port F bit 7 |
| Chân 54 | RG0 — I/O port G bit 0 |
| Chân 55 | RG1 — I/O port G bit 1 |
| Chân 56 | RG2 — I/O port G bit 2 |
| Chân 57 | RG3 — I/O port G bit 3 |
| Chân 58 | RG4 — I/O port G bit 4 |
| Chân 59 | VSS — Ground |
| Chân 60 | VDD — Positive supply |
| Chân 61 | AVSS — Analog ground |
| Chân 62 | AVDD — Analog positive supply |
| Chân 63 | VREF+ — ADC positive voltage reference |
| Chân 64 | VREF- — ADC negative voltage reference |
| Chân 65 | RX/DT — USART receive / synchronous data |
| Chân 66 | TX/CK — USART transmit / synchronous clock |
| Chân 67 | SDI — SPI data in |
| Chân 68 | SDO — SPI data out |
| Chân 69 | SCK — SPI clock |
| Chân 70 | SDA — I2C data |
| Chân 71 | SCL — I2C clock |
| Chân 72 | INT0 — External interrupt 0 |
| Chân 73 | INT1 — External interrupt 1 |
| Chân 74 | T0CKI — Timer 0 clock input |
| Chân 75 | T1CKI — Timer 1 clock input |
| Chân 76 | CCP1 — Capture/Compare/PWM 1 |
| Chân 77 | CCP2 — Capture/Compare/PWM 2 |
| Chân 78 | NC — Not connected |
| Chân 79 | NC — Not connected |
| Chân 80 | NC — Not connected |
| Chân 81 | NC — Not connected |
| Chân 82 | NC — Not connected |
| Chân 83 | NC — Not connected |
| Chân 84 | NC — Not connected |
Ứng dụng tiêu biểu
PIC17C762T-33/L phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Motor Control Front-Ends, Instrumentation Front-Ends, Automotive Body Controllers, Smart Sensor Hubs, Embedded Systems with EPROM Firmware.
Industrial Automation Controllers
The PIC17C762T-33/L fits industrial automation controllers thanks to its 50 I/O lines, 10-bit ADC, and 33 MHz deterministic 121 ns instruction cycle. Placed on a PLC or sensor-hub board, it reads analog signals from temperature/pressure sensors, drives relays and motor actuators via PWM, and communicates with upstream PLCs over USART. The integrated 10-bit ADC reduces external component count, while the 16KB EPROM holds structured ladder-logic-equivalent firmware. Power consumption is bounded by the 4.5-5.5V supply rail, and the 0-70C commercial range covers factory-floor enclosures. Designers should add input protection and watchdog timer firmware for noisy industrial environments.
Được đề xuất
Motor Control Front-Ends
The PIC17C762T-33/L is well-suited to BLDC and stepper motor control front-ends that demand deterministic timing. The 33 MHz clock produces 121 ns instruction cycles, enabling precise PWM generation and back-EMF sampling. The 10-bit ADC with up to 16 channels reads phase currents, potentiometer position, and DC-bus voltage simultaneously. The 50 I/O lines drive inverter gate drivers, Hall-effect sensors, and fault inputs. EPROM-based firmware provides code protection for proprietary control algorithms. Consider using the complementary PIC17C756AT-33I/L if your control algorithm exceeds 16KB.
Được đề xuất
Instrumentation Front-Ends
The PIC17C762T-33/L powers instrumentation front-ends such as digital multimeters and process calibrators. Its 10-bit ADC delivers adequate resolution for many measurement ranges, while the 33 MHz CPU supports real-time RMS calculations, auto-ranging, and LCD drive. The USART connects to PCs or industrial buses for data logging. EPROM storage secures calibration constants and proprietary firmware. The PLCC-84 package allows socketed prototypes during calibration development. For higher-resolution needs, migrate to dsPIC33EP64MC504-E/MV with 12-bit ADC.
Được đề xuất
Automotive Body Controllers
Although rated for commercial 0-70C, the PIC17C762T-33/L is found in legacy automotive body controllers for non-engine compartments. Functions include central locking, lighting control, seat memory, and climate panel interfacing. The 10-bit ADC reads potentiometers and thermistors; PWM outputs drive LEDs and small motors. CAN/LIN support is not native, so external transceivers are required. For new automotive designs, use AEC-Q100 qualified PIC18F or dsPIC33 families.
Được đề xuất
Smart Sensor Hubs
The PIC17C762T-33/L serves as a smart sensor hub aggregating multiple analog/digital sensors and reporting over SPI or USART. The 16-channel ADC plus 50 GPIO accommodate environmental sensor arrays, while the 16KB EPROM stores calibration tables and DSP-lite filtering routines. With 121 ns instruction cycle, real-time moving-average and threshold detection run comfortably. Pair with external EEPROM for data logging. For low-power battery sensor designs, migrate to PIC16LF or PIC24F families.
Được đề xuất
Embedded Systems with EPROM Firmware
The PIC17C762T-33/L is ideal for embedded systems that require EPROM-based firmware for code protection or radiation tolerance. Applications include industrial gate-array controllers, secure access panels, and ruggedized field equipment. The 16KB OTP EPROM is one-time programmable, preventing firmware reverse engineering. Developers should use a compatible EPROM programmer (e.g., MPLAB PM3) for production programming. Migration path is dsPIC33EP64MC504-E/MV with flash for in-field updates.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17C762T-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 | PIC17C762T-33I/L | PIC17C762-33I/L | PIC17C762-33I/PT | PIC17C752T-33/L | PIC17C756AT-33I/L |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Program Memory | 16 KB OTP EPROM | 16 KB OTP EPROM | 16 KB OTP EPROM | 16 KB OTP EPROM | 16 KB OTP EPROM | 32 KB OTP EPROM (+100%) |
| Max Clock Frequency | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz |
| Operating Temperature | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) |
| ADC | 10-bit, 16 channels | 10-bit, 16 channels | 10-bit, 16 channels | 10-bit, 16 channels | None (no ADC) | 10-bit, 12 channels |
| I/O Pins | 50 | 50 | 50 | 50 | 50 | 50 |
| Packaging Format | Tape & Reel | Tape & Reel | Tube | Tube | Tape & Reel | Tape & Reel |
Bảo phân biệt quan trọng
- Highest-density EPROM in PIC17C 84-PLCC family (vsPIC17C752T-33/L)
- Industrial temperature option available (vsPIC17C762-33I/L)
- 16KB EPROM vs 32KB upgrade path (vsPIC17C756AT-33I/L)
Ghi chú thiết kế
Estimated: At 33 MHz and 5V supply with all peripherals active, PIC17C762T-33/L typical I_dd is approximately 30-50 mA per the PIC17C family datasheet. Decouple VDD/VSS pairs with 100 nF ceramic + 10 uF tantalum placed within 5 mm of each supply pin. Use a ferrite bead on AVDD to isolate analog supply from digital switching noise; inadequate decoupling directly degrades 10-bit ADC SNR.
Always check the latest PIC17C762 silicon errata before firmware development. Common pitfalls include: (1) ADC channel ordering not matching port bit order; (2) read-modify-write hazards on PORT registers; (3) oscillator start-up time requiring delay loops; (4) EPROM programming requires 13V Vpp on MCLR/Vpp pin - verify programmer compatibility. In-circuit debugging is NOT supported on PIC17C OTP parts.
PLCC-84 (29.31x29.31 mm) requires a socket or reflow profile suitable for J-leaded packages. Keep analog traces short and away from digital switching lines; place the analog ground plane directly under ADC pins. Provide a ground ring around the oscillator crystal and load capacitors (typically 15-33 pF) within 5 mm of OSC1/OSC2.
Thông tin tuân thủ
PLCC-84 package contains lead (Pb) in solder leads; not RoHS compliant. PIC17C762 family is not AEC-Q100 qualified for automotive. Verify RoHS exemptions for legacy industrial use.
