PIC17LC752-08I/L - 8-bit 8MHz 16KB OTP MCU 50 I/O | Microchip
MPN: PIC17LC752-08I/L ✓ Hoạt độngPIC17LC752-08I/L Tóm tắt
An 8-bit microcontroller is a small computing-on-a-chip device built around an 8-bit data bus, ALU, and on-chip program plus data memory; it executes firmware stored in non-volatile memory and drives discrete I/O and peripherals. Within the broader taxonomy, the PIC17LC752 sits inside the microcontroller hierarchy (microcontroller -> embedded controller -> MCU -> semiconductor) and the Microchip PIC17C sub-family specifically targets high-performance 8-bit applications that previously required 16-bit controllers. The PIC17C family introduced a RISC-style Harvard architecture with 58 single-word instructions, expanded peripheral integration, and wider memory addressing than the PIC16C baseline.
Key differentiating specifications include 16KB of OTP program memory, 678 bytes of general-purpose RAM, 50 bidirectional I/O pins (versus the typical 33 of smaller PICs), four 8-bit timer/counters, dual capture/compare/PWM modules, a USART, an MSSP for SPI/I2C, a parallel slave port, and the integrated 10-bit ADC with multiple input channels. The instruction set is optimized with 58 single-word instructions, allowing most operations to complete in 121 ns at 8 MHz, and the device supports up to 8 MHz clock frequency for deterministic real-time control loops.
Architecturally, the PIC17LC752-08I/L uses a 16-bit instruction word with separate program and data buses (Harvard architecture) and a 16-level hardware stack that enables fast interrupt servicing. The OTP program memory is field-programmable and is well suited to volume production runs where mask ROM economics are not justified, and the LC variant's 2.5 V to 5.0 V core lets it serve both 3.3 V and 5 V subsystems without a second regulator. Industrial-temperature grade (-40C to +85C) operation is denoted by the 'I' suffix.
Typical applications include industrial process control, instrumentation, motor control, embedded data acquisition, and legacy industrial automation equipment that requires many digital I/O lines and an on-board ADC. The 50 I/O count enables direct interface to keypads, displays, and parallel peripherals without external expanders. When designing with this part, note that the OTP memory requires a device programmer and cannot be reprogrammed in-circuit; pair the design with a thorough firmware verification cycle and consider migrating to a flash-based equivalent (for example, PIC18F variants) for field-updatable production units.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Engineers sourcing this part should verify lead time against current Microchip factory schedules, as PIC17C-family OTPs have been progressively superseded by flash-based PIC18F/PIC24 devices.
Bộ thay thế dễ dàng lắp đặt cho PIC17LC752-08I/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 PIC17LC752-08I/L (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Program Memory Size, Core Architecture, RoHS Status.
PIC17C752-16/L
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC17C752T-33/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C752-33/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC17C752-16E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC17C756AT-33I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-16I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC17LC752-08I/L Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit Harvard |
| Family | PIC17C |
| Program Memory Type | OTP (EPROM) |
| Program Memory Size | 16 KB (8K x 16) |
| RAM Size | 678 bytes |
| CPU Speed | 8 MHz maximum |
| Instruction Cycle Time | 121 ns (single-cycle) |
| Number of Instructions | 58 single-word |
| I/O Pins | 50 |
| Bề rộng đường dữ liệu | 16-bit (instruction), 8-bit (data) |
| Điện áp cung cấp | 2.5 V to 5.0 V |
| ADC | 10-bit integrated |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, 'I' suffix) |
| Hộp | 68-pin PLCC (24.23 x 24.23 mm) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân PIC17LC752-08I/L
| Chân 1 | OSC1/CLKIN — Oscillator input / external clock input |
| Chân 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 4 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 5 | RA3/AN3 — Port A bit 3 / analog input 3 |
| Chân 6 | RA4/AN4/T0CKI — Port A bit 4 / analog input 4 / Timer0 clock input |
| Chân 7 | RA5/AN5/SS — Port A bit 5 / analog input 5 / SPI slave select |
| Chân 8 | RA6/AN6 — Port A bit 6 / analog input 6 |
| Chân 9 | RA7/AN7 — Port A bit 7 / analog input 7 |
| Chân 10 | VSS — Ground reference |
| Chân 11 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Chân 12 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Chân 13 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Chân 14 | RB3/INT3 — Port B bit 3 / external interrupt 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 | VDD — Positive supply voltage |
| Chân 20 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / clock input |
| Chân 21 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / CCP2 |
| Chân 22 | RC2/CCP1 — Port C bit 2 / CCP1 |
| Chân 23 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 24 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 25 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 26 | RC6/TX/CK — Port C bit 6 / USART transmit / clock |
| Chân 27 | RC7/RX/DT — Port C bit 7 / USART receive / data |
| Chân 28 | RD0/PSP0 — Port D bit 0 / parallel slave port 0 |
| Chân 29 | RD1/PSP1 — Port D bit 1 / parallel slave port 1 |
| Chân 30 | RD2/PSP2 — Port D bit 2 / parallel slave port 2 |
| Chân 31 | RD3/PSP3 — Port D bit 3 / parallel slave port 3 |
| Chân 32 | RD4/PSP4 — Port D bit 4 / parallel slave port 4 |
| Chân 33 | RD5/PSP5 — Port D bit 5 / parallel slave port 5 |
| Chân 34 | RD6/PSP6 — Port D bit 6 / parallel slave port 6 |
| Chân 35 | RD7/PSP7 — Port D bit 7 / parallel slave port 7 |
| Chân 36 | VSS — Ground reference |
| Chân 37 | VDD — Positive supply voltage |
| Chân 38 | RE0/RD/AN8 — Port E bit 0 / read / analog input 8 |
| Chân 39 | RE1/WR/AN9 — Port E bit 1 / write / analog input 9 |
| Chân 40 | RE2/CS/AN10 — Port E bit 2 / chip select / analog input 10 |
| Chân 41 | RE3/AN11 — Port E bit 3 / analog input 11 |
| Chân 42 | RE4/AN12 — Port E bit 4 / analog input 12 |
| Chân 43 | RE5/AN13 — Port E bit 5 / analog input 13 |
| Chân 44 | RE6/AN14 — Port E bit 6 / analog input 14 |
| Chân 45 | RE7/AN15 — Port E bit 7 / analog input 15 |
| Chân 46 | RF0/AN16 — Port F bit 0 / analog input 16 |
| Chân 47 | RF1/AN17 — Port F bit 1 / analog input 17 |
| Chân 48 | RF2/AN18 — Port F bit 2 / analog input 18 |
| Chân 49 | RF3/AN19 — Port F bit 3 / analog input 19 |
| Chân 50 | RF4/AN20 — Port F bit 4 / analog input 20 |
| Chân 51 | RF5/AN21 — Port F bit 5 / analog input 21 |
| Chân 52 | RF6/AN22 — Port F bit 6 / analog input 22 |
| Chân 53 | RF7/AN23 — Port F bit 7 / analog input 23 |
| Chân 54 | RG0 — Port G bit 0 |
| Chân 55 | RG1 — Port G bit 1 |
| Chân 56 | RG2 — Port G bit 2 |
| Chân 57 | RG3 — Port G bit 3 |
| Chân 58 | RG4 — Port G bit 4 |
| Chân 59 | VSS — Ground reference |
| Chân 60 | VDD — Positive supply voltage |
| Chân 61 | NC — Not connected (per datasheet) |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | MCLR/VPP — Master clear reset / programming voltage |
| Chân 64 | OSC2/CLKOUT — Oscillator output / clock output |
| Chân 65 | NC — Not connected (per datasheet) |
| Chân 66 | NC — Not connected (per datasheet) |
| Chân 67 | NC — Not connected (per datasheet) |
| Chân 68 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC17LC752-08I/L phù hợp cho 7 Áp dụngs: Industrial Process Control, Motor Control and PWM Drive, Embedded Data Acquisition, Legacy Instrumentation and Test Equipment, Human-Machine Interface (HMI) Panels, Telecom and Serial Protocol Bridging, Automotive Subsystems (Non-Safety).
Industrial Process Control
The PIC17LC752-08I/L fits industrial process-control applications because it combines 50 digital I/O lines, an integrated 10-bit ADC, and an 8 MHz CPU in a 68-pin PLCC footprint that drops directly onto legacy PIC17C control boards. Its 2.5-5.0 V supply range tolerates 24 V-derived 5 V or 3.3 V rails, while the -40 C to +85 C industrial temperature rating suits factory-floor environments. The 678-byte RAM and 16 KB OTP program memory comfortably host PID-loop firmware plus HMI key scanning. Compared with a switching regulator-fed solution, the LC variant's wide voltage range simplifies power-tree design and reduces BOM cost.
Được đề xuất
Motor Control and PWM Drive
The PIC17LC752-08I/L's dual capture/compare/PWM modules and 50 I/O pins suit low- to mid-power motor-control applications including DC-brush, stepper, and small BLDC drivers. The 8 MHz CPU executes PWM-update routines in 121 ns per instruction, giving deterministic commutation timing at typical PWM frequencies of 10-20 kHz. The integrated 10-bit ADC reads back current shunts and back-EMF signals in real time, while the wide 2.5-5.0 V supply range lets the MCU share logic rails with 3.3 V gate drivers. The 68-pin PLCC footprint provides ample I/O for Hall-sensor inputs and H-bridge fault feedback.
Được đề xuất
Embedded Data Acquisition
The PIC17LC752-08I/L is well matched to embedded data-acquisition tasks where the on-chip 10-bit ADC, 50 I/O pins, and 16 KB OTP program memory let a single chip replace separate ADC plus glue-logic implementations. Industrial sensors, 4-20 mA loops, and thermistor bridges can be digitised directly into the ADC and processed in firmware. The 678-byte RAM is sufficient for moving-average and circular-buffer storage of recent samples. The 68-pin PLCC industrial-temperature package survives installation in remote or unenclosed cabinets, and the 2.5-5.0 V supply tolerates battery-derived rails for portable logging instruments.
Được đề xuất
Legacy Instrumentation and Test Equipment
The PIC17LC752-08I/L remains in demand for legacy instrumentation and test equipment where the original designer chose the PIC17C architecture for its 50 I/O and 16 KB code space. Its drop-in compatibility with PIC17C752 pin-compatibles preserves existing PCB investments when firmware updates or board rework are needed. The integrated USART and MSSP peripherals drive RS-232, RS-485, and SPI front-panel interfaces commonly found in bench instruments. Because OTP memory requires device programmers, design teams typically keep a small bank of pre-programmed PIC17LC752s on the manufacturing line to support long product lifecycles.
Được đề xuất
Human-Machine Interface (HMI) Panels
The PIC17LC752-08I/L's 50 I/O pins make it a strong fit for HMI front panels that drive character LCDs, scan keypads, and toggle indicator LEDs without external port expanders. The 8 MHz CPU refreshes character-LCD displays in real time while servicing key-debounce and rotary-encoder interrupts through its four 8-bit timers. The integrated 10-bit ADC reads analog panel controls such as potentiometers or joysticks. The 2.5-5.0 V supply range simplifies powering the MCU from the same 5 V or 3.3 V rail that drives the LCD backlight and logic-level shifters, reducing total BOM cost in compact panel designs.
Được đề xuất
Telecom and Serial Protocol Bridging
The PIC17LC752-08I/L's USART, MSSP (SPI/I2C), and parallel slave port make it a versatile protocol-bridging controller for telecom and industrial networks where multiple serial formats must be converted in real time. The 8 MHz CPU executes protocol-state machines with sufficient throughput to bridge RS-232 to SPI or I2C-to-parallel without external FIFOs. The wide supply range (2.5-5.0 V) lets the MCU sit on either side of level shifters in mixed-voltage systems. Its 50 I/O pins also provide GPIO expansion for legacy equipment, and the 68-pin PLCC package is well suited to conformal-coated telecom line cards.
Được đề xuất
Automotive Subsystems (Non-Safety)
Although the PIC17LC752-08I/L is not AEC-Q100 qualified, it can serve non-safety automotive subsystems such as HVAC control, interior lighting, and instrument-cluster sub-modules where automotive-grade qualification is not required by the OEM. Its -40 C to +85 C industrial temperature grade spans cabin temperatures, and the 50 I/O pins drive segment displays, switches, and small solenoid drivers directly. The integrated 10-bit ADC handles temperature and position-sensor inputs, while the 2.5-5.0 V supply range tolerates the regulated 5 V or 3.3 V rails common in body-electronics modules. For safety-critical applications choose an AEC-Q100-qualified part instead.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17LC752-08I/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 | PIC17C752-16/L | PIC17C752T-33/L | PIC17C752-33/PT | PIC17C756AT-33I/L |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 68-pin PLCC (24.23x24.23 mm) | 68-pin PLCC - same | 68-pin PLCC - same | 68-pin PLCC - same | 68-pin PLCC - same |
| Program Memory | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP | 32 KB OTP |
| RAM | 678 bytes | 678 bytes | 678 bytes | 678 bytes | 902 bytes |
| Maximum Clock | 8 MHz | 16 MHz | 33 MHz | 33 MHz | 33 MHz |
| I/O Pins | 50 | 50 | 50 | 50 | 50 |
| Supply Voltage | 2.5 V to 5.0 V (LC) | 4.5 V to 5.5 V (C) | 4.5 V to 5.5 V (C) | 4.5 V to 5.5 V (C) | 4.5 V to 5.5 V (C) |
| ADC | 10-bit integrated | 10-bit integrated | 10-bit integrated | 10-bit integrated | 10-bit integrated |
| Temperature Grade | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) |
Bảo phân biệt quan trọng
- 68-pin PLCC with 50 I/O (vsPIC16LF877A-I/PT (40-pin TQFP))
- Low-voltage 2.5-5.0 V supply range (vsPIC17C752-16/L (4.5-5.5 V))
- Larger memory option in same footprint (vsPIC17C756AT-33I/L (32 KB))
- Higher throughput in same package (vsPIC17C752-33/PT (33 MHz))
Ghi chú thiết kế
The PIC17LC752-08I/L operates from 2.5 V to 5.0 V. Decouple every VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the package pin, and add a bulk 10 uF tantalum or ceramic capacitor on the main supply rail per Microchip PIC17C752 datasheet design guidelines. Power-on ramp should be monotonic to avoid MCLR-induced brown-out resets; if the upstream regulator cannot guarantee monotonicity, add an external RC reset network on MCLR.
OTP memory cannot be erased, so production programming requires a verified firmware image and a device programmer that supports the PIC17C family. Always run a full firmware-validation cycle on a windowed or flash-equivalent PIC before committing the OTP order. Microchip's device programmers (such as MPLAB PM3 and ICD-style debug units) cover this family. Estimated: a typical 16 KB OTP programming cycle takes approximately 4-8 seconds including verification, so factor this into manufacturing takt time.
Place the 8 MHz crystal or resonator within 5 mm of OSC1 and OSC2 with short, ground-guarded traces to minimise EMI. Route analog input traces (RA0-RA7, RE0-RE7, RF0-RF7) away from digital switching signals, and provide a separate analog ground island joined to the main ground at a single point near the device. Use a guard ring around sensitive analog pins if high-current switching is nearby, as recommended in Microchip's PIC17C752 datasheet layout guidelines.
Although the PIC17LC752-08I/L is a CMOS MCU with modest power dissipation (typically under 100 mW), the 68-pin PLCC package's theta_JA of approximately 35-45 C/W should still be respected in sealed enclosures with no airflow. Provide a copper pour under the exposed die-pad region where the PLCC socket allows, and derate maximum ambient temperature by 10-15 C in fanless designs to keep junction rise under 20 C above ambient.
Thông tin tuân thủ
RoHS, REACH, lead-free and halogen-free status not explicitly stated in the verified web data for PIC17LC752-08I/L. Conflict-minerals declaration per Microchip corporate policy. AEC-Q100 not qualified - do not use in safety-critical automotive applications.
