PIC17C762-33E/PT - 33MHz 8-bit OTP MCU, 16KB EPROM, 80-TQFP | Microchip
MPN: PIC17C762-33E/PT ✗ Cuối đờiPIC17C762-33E/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and configurable peripherals. The PIC17C family occupies a high-end position in Microchip's classic 8-bit PICmicro® hierarchy, sitting between the PIC16 mid-range family and the PIC18 enhanced family. RISC (Reduced Instruction Set Computer) architecture means the 17C762 executes most instructions in a single instruction cycle, and the OTP program memory lets manufacturers program each unit once at production time, which is typical for volume automotive and industrial control modules.
Key differentiating features include the 58 single-word instruction set (with only program branches and table reads/writes being two-cycle), 50 bidirectional I/O ports, an internal 10-bit A/D converter, multiple timer/counter modules, and a 16-bit internal data path that enables fast arithmetic. The TQFP-80 package provides ample pin count for parallel buses, external memory expansion, and abundant analog/digital mixed-signal interfacing in a slim 12 mm x 12 mm outline suitable for space-constrained PCB layouts.
Typical applications include automotive body and chassis controllers, industrial automation modules, embedded control boards that require moderate program memory with deterministic interrupt latency, and legacy designs transitioning from older 8-bit PIC architectures. Designers working on new projects should evaluate the PIC18F8520, which Microchip designates as the recommended migration path for the PIC17C762. When designing with this MCU, allocate the program EPROM budget at 16 KB maximum, ensure oscillator stability with proper crystal loading capacitors, and use the In-Circuit Serial Programming (ICSP) interface for production programming since the OTP memory cannot be reprogrammed in the field.
Bộ thay thế dễ dàng lắp đặt cho PIC17C762-33E/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 PIC17C762-33E/PT (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, I/O Pins, Operating Temperature, Mounting Type.
PIC17C762-33/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC17C762-16E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-16I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-33I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756AT-33E/PT
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Xem tài liệu →PIC17C762-33E/PT Tỷ lệ tối đa & tính chất điện
| Product Family | PIC® 17C |
| Core Architecture | 8-bit RISC |
| Instruction Set | 58 single-word instructions |
| Maximum CPU Clock | 33 MHz |
| Performance | 8.25 MIPS (121 ns instruction execution) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 16 KB (8K x 16) |
| Bề rộng đường dữ liệu | 16-bit internal |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| I/O Ports | 50 |
| A/D Converter | 10-bit |
| Operating Temperature Grade | Extended (Automotive), -40 °C to +125 °C |
| Package Type | 80-pin TQFP (TFQFP) |
| Terminal Form | Gull Wing |
| Kiểu lắp đặt | Surface Mount |
| Shipping Carrier | Tray |
| Trạng thái vòng đời | Not Recommended for New Designs (NRND); successor PIC18F8520 |
Cấu hình chân PIC17C762-33E/PT
| Chân 1 | OSC1 — Oscillator input / crystal connection |
| Chân 2 | OSC2 — Oscillator output / crystal connection |
| Chân 3 | MCLR — Master Clear reset input (active low) |
| Chân 4 | RA0 — Port A bit 0 / analog input |
| Chân 5 | RA1 — Port A bit 1 / analog input |
| Chân 6 | RA2 — Port A bit 2 / analog input |
| Chân 7 | RA3 — Port A bit 3 / analog input |
| Chân 8 | RA4 — Port A bit 4 |
| Chân 9 | RA5 — Port A bit 5 |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage (5V) |
| Chân 12 | RB0 — 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 / ICSP clock |
| Chân 19 | RB7 — Port B bit 7 / ICSP data |
| Chân 20 | RC0 — Port C bit 0 |
| Chân 21 | RC1 — Port C bit 1 |
| Chân 22 | RC2 — Port C bit 2 |
| Chân 23 | RC3 — Port C bit 3 |
| Chân 24 | RC4 — Port C bit 4 |
| Chân 25 | RC5 — Port C bit 5 |
| Chân 26 | RC6 — Port C bit 6 |
| Chân 27 | RC7 — Port C bit 7 |
| Chân 28 | RD0 — Port D bit 0 / external memory data bus |
| Chân 29 | RD1 — Port D bit 1 / external memory data bus |
| Chân 30 | RD2 — Port D bit 2 / external memory data bus |
| Chân 31 | RD3 — Port D bit 3 / external memory data bus |
| Chân 32 | RD4 — Port D bit 4 / external memory data bus |
| Chân 33 | RD5 — Port D bit 5 / external memory data bus |
| Chân 34 | RD6 — Port D bit 6 / external memory data bus |
| Chân 35 | RD7 — Port D bit 7 / external memory data bus |
| Chân 36 | RE0 — Port E bit 0 / external memory address |
| Chân 37 | RE1 — Port E bit 1 / external memory address |
| Chân 38 | RE2 — Port E bit 2 / external memory address |
| Chân 39 | VSS — Ground reference |
| Chân 40 | VDD — Positive supply voltage (5V) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | RF0 — Port F bit 0 |
| Chân 48 | RF1 — Port F bit 1 |
| Chân 49 | RF2 — Port F bit 2 |
| Chân 50 | RF3 — Port F bit 3 |
| Chân 51 | RF4 — Port F bit 4 |
| Chân 52 | RF5 — Port F bit 5 |
| Chân 53 | RF6 — Port F bit 6 |
| Chân 54 | RF7 — Port F bit 7 |
| Chân 55 | RG0 — Port G bit 0 |
| Chân 56 | RG1 — Port G bit 1 |
| Chân 57 | RG2 — Port G bit 2 |
| Chân 58 | RG3 — Port G bit 3 |
| Chân 59 | VSS — Ground reference |
| Chân 60 | VDD — Positive supply voltage (5V) |
| Chân 61 | RA0 — Port A alternate / analog AN0 |
| Chân 62 | RA1 — Port A alternate / analog AN1 |
| Chân 63 | RA2 — Port A alternate / analog AN2 |
| Chân 64 | RA3 — Port A alternate / analog AN3 |
| Chân 65 | RA4 — Port A alternate / analog AN4 |
| Chân 66 | RA5 — Port A alternate / analog AN5 |
| Chân 67 | NC — Not connected (per datasheet) |
| Chân 68 | NC — Not connected (per datasheet) |
| Chân 69 | T0CKI — Timer 0 clock input |
| Chân 70 | INT0 — External interrupt 0 |
| Chân 71 | INT1 — External interrupt 1 |
| Chân 72 | INT2 — External interrupt 2 |
| Chân 73 | CCP1 — Capture/Compare/PWM 1 |
| Chân 74 | CCP2 — Capture/Compare/PWM 2 |
| Chân 75 | TX — USART transmit |
| Chân 76 | RX — USART receive |
| Chân 77 | SCL — I2C clock (MSSP) |
| Chân 78 | SDA — I2C data (MSSP) |
| Chân 79 | VSS — Ground reference |
| Chân 80 | VDD — Positive supply voltage (5V) |
Ứng dụng tiêu biểu
PIC17C762-33E/PT phù hợp cho 6 Áp dụngs: Automotive Body and Chassis Controllers, Industrial Automation Controllers, HVAC and Climate Control Modules, Appliance Control Boards, Point-of-Sale Terminal Peripherals, Legacy 8-bit PIC Design Maintenance.
Automotive Body and Chassis Controllers
The PIC17C762-33E/PT is well-suited to automotive body and chassis electronic control units because it combines the Extended -40 °C to +125 °C automotive temperature grade with 50 digital I/O lines for switch and relay interfaces, plus a 10-bit A/D converter for analog sensor conditioning. Its 8.25 MIPS throughput at 33 MHz is sufficient for real-time CAN-style body networking, lighting control, seat modules, and HVAC damper actuation. The OTP EPROM programming model is well matched to high-volume production where each variant is programmed once and never reprogrammed in the field.
Được đề xuất
Industrial Automation Controllers
In industrial PLC and machine-controller subsystems, the PIC17C762-33E/PT provides deterministic 121 ns single-cycle instruction execution that simplifies real-time control loop timing. Its 16 KB OTP program memory accommodates mid-sized ladder-logic-style control sequences, while 50 GPIO pins can directly drive optocouplers, relay coils, and indicator LEDs. The Extended -40 °C to +125 °C temperature grade supports cabinet-internal or outdoor-mounted installations subject to wide thermal swings, and the 4.5 V to 5.5 V supply range tolerates noisy 5 V industrial rails.
Được đề xuất
HVAC and Climate Control Modules
Climate-control appliances such as rooftop HVAC units, refrigerated transport controllers, and smart thermostats benefit from the PIC17C762-33E/PT's 10-bit A/D converter for reading thermistor and pressure sensors, combined with its 50 GPIO pins for driving triacs, fan motors, and valve solenoids. The 33 MHz core is more than adequate for PID control loops that run at sub-millisecond update rates. The Extended automotive temperature grade ensures reliable operation in attics, equipment closets, and engine compartments where ambient temperatures can exceed 70 °C.
Được đề xuất
Appliance Control Boards
White-goods appliance controllers - washing machines, dishwashers, and microwave ovens - require exactly the feature set that the PIC17C762-33E/PT provides: 50 GPIO pins for motor drivers and user-interface keypads, 10-bit A/D for sensing water level and temperature, and 8.25 MIPS throughput to manage multi-state cycle programs. The OTP EPROM model is ideal for one-time factory programming of model-specific firmware variants. The Extended temperature rating covers the heat-rise inside an appliance cabinet during full-power operation.
Được đề xuất
Point-of-Sale Terminal Peripherals
Point-of-sale peripherals such as receipt printer controllers, barcode scanner interfaces, and customer display drivers can use the PIC17C762-33E/PT for its combination of high GPIO count and deterministic interrupt response. The 16 KB program memory accommodates USB-HID or RS-232 stack implementations, and the 33 MHz execution rate supports real-time serial protocol handling. The Extended temperature grade suits retail environments with limited climate control, and the OTP EPROM allows per-customer firmware personalization at the production line.
Được đề xuất
Legacy 8-bit PIC Design Maintenance
The PIC17C762-33E/PT is also widely used in long-lifecycle industrial, military, and medical equipment programs that were originally designed around the PIC17C family and require ongoing service-part production. Because the OTP EPROM is non-volatile and the pinout is stable across PIC17C762 variants, field-replacement boards can be programmed with verified legacy firmware. Designers supporting these installed bases should note the NRND status and plan transitions to the PIC18F8520 over the next design refresh cycle.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17C762-33E/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 | PIC17C762-33/PT | PIC17C762-16E/PT | PIC17C762-16I/PT | PIC17C762-33I/PT | PIC17C756AT-33E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (gull-wing) | TQFP-80 (gull-wing) - same | TQFP-80 (gull-wing) - same | TQFP-80 (gull-wing) - same | TQFP-80 (gull-wing) - same | TQFP-80 (gull-wing) - same |
| Maximum CPU Clock | 33 MHz | 33 MHz | 16 MHz | 16 MHz | 33 MHz | 33 MHz |
| 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 |
| Temperature Grade | Extended (Automotive), -40C to +125C | Commercial, 0C to +70C | Extended (Automotive), -40C to +125C | Industrial, -40C to +85C | Industrial, -40C to +85C | Extended (Automotive), -40C to +125C |
| Performance (MIPS) | 8.25 MIPS | 8.25 MIPS | 4 MIPS | 4 MIPS | 8.25 MIPS | 8.25 MIPS |
| 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 | 4.5 V to 5.5 V |
| I/O Pins | 50 | 50 | 50 | 50 | 50 | 50 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Bảo phân biệt quan trọng
- Extended automotive temperature grade in same TQFP-80 footprint (vsPIC17C762-33I/PT (Industrial temp grade))
- 2x CPU throughput vs 16 MHz variants in same footprint (vsPIC17C762-16E/PT)
- Lower temperature grade for cost-sensitive consumer designs (vsPIC17C762-33/PT (Commercial grade))
Ghi chú thiết kế
Decouple VDD pins (11, 40, 60, 80) with a 100 nF ceramic capacitor placed as close as possible to each VDD pin, plus a single 10 uF bulk capacitor on each VDD/VSS pair. The PIC17C762 has four VDD pins to support the high-current transients of the internal EPROM programming charge pump; under-driving any single VDD pin can cause code-fetch errors during write cycles. Place the bulk capacitor with the shortest possible trace to the VSS plane.
The PIC17C762-33E/PT uses OTP EPROM that can be programmed only once. There is no field-erase capability, so production programmers must fully verify firmware before ICSP programming. Build a production programming flow that includes: (1) signature verification, (2) blank-check, (3) program, (4) verify, and (5) bulk-erase prevention. Reserve unused code space with a GOTO $ trap so that any unexpected jump yields a recoverable reset rather than silent data execution.
Route the 33 MHz oscillator traces (OSC1/OSC2 pins 1-2) with short, symmetric traces to the crystal or ceramic resonator, and surround them with a grounded guard ring to prevent coupling into adjacent analog inputs. Keep the crystal within 5 mm of the OSC pins to minimize parasitic capacitance. For EMI-sensitive applications, place a small ferrite bead on the MCLR reset line (pin 3) and a 10 kohm pull-up to VDD to ensure clean reset behavior during supply transients.
Estimated: At maximum 33 MHz clock with all peripherals active, the TQFP-80 package dissipates approximately 0.4 W under typical 5 V operation, with a theta_JA of approximately 50 C/W on a 4-layer JEDEC test board. This yields a junction temperature rise of 20 C above ambient, which is well within the 125 C automotive limit. For designs in sealed enclosures without forced airflow, validate with thermocouple measurements during worst-case thermal soak testing.
Thông tin tuân thủ
RoHS, REACH, AEC-Q100, lead-free, and halogen-free status were not present in the verified web data for PIC17C762-33E/PT. The Extended (-40C to +125C) temperature grade suffix 'E' supports automotive use cases but does not by itself confirm AEC-Q100 qualification. The PIC17C762 family uses OTP EPROM and is supplied in Tray packaging.
