PIC17LC752-08/L - 8-Bit 8MHz 16KB OTP MCU 68-PLCC | Microchip
MPN: PIC17LC752-08/L ✗ Cuối đờiPIC17LC752-08/L Tóm tắt
An EPROM-based microcontroller is a member of the broader category of microcontrollers - self-contained single-chip computers that integrate a CPU, non-volatile program memory, working RAM, and I/O peripherals. The PIC17C family sits hierarchically above 8-bit microcontrollers, within the larger class of embedded controllers, and ultimately within the integrated circuits > microcontrollers category. EPROM-based MCUs were historically used for cost-sensitive production runs where field reprogrammability was not required, and they bridge the gap between mask-ROM MCUs (lowest unit cost at high volumes) and Flash-based MCUs (re-programmability).
Key differentiating specifications of the PIC17LC752-08/L include its 16-bit-wide program memory bus (8K x 16 words), 50 high-current I/O pins suitable for direct LED or relay drive, a 33 MHz maximum clock input, and four hardware interrupt sources. Compared with PIC16-family parts, the PIC17C offers an extended instruction set with hardware multiply, a larger register file, and a wider 16-bit program-memory datapath that reduces fetch bottlenecks.
Architecturally, the device uses a Harvard architecture with separate program and data paths, a hardware multiply unit, and a multi-source interrupt controller with priority levels. The OTP EPROM cell provides one-time field programming via standard EPROM programmers, and the part is qualified for commercial-temperature operation.
Typical applications include industrial control panels, instrumentation front-ends, motor control firmware prototypes, HVAC controllers, point-of-sale terminals, and embedded control boards in commercial equipment where moderate I/O count and 8-bit processing suffice.
When designing with this device, note that the OTP memory cannot be re-programmed in-circuit, so firmware must be fully validated before final programming. Allocate one hardware timer for the watchdog to detect firmware lock-ups, and consult the Microchip PIC17C family reference manual for the exact timer-to-peripheral mapping.
This page synthesizes distributor pricing from DigiKey and LCSC, drop-in alternatives from Microchip's PIC17C family, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC17LC752-08/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 PIC17LC752-08/L (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Data Bus Width, Program Memory Size, Package, RoHS Status.
PIC17LC752T-08/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C752-16/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756A-16I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC17LC752-08/L Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC17C 8-bit Harvard |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 16 KB (8K x 16) |
| RAM Size | 678 bytes |
| Maximum Clock Input | 33 MHz |
| Instruction Cycle Time | 121 ns |
| Bề rộng đường dữ liệu | 16 bit |
| I/O Pins | 50 |
| Điện áp cung cấp | 2.5 V to 5.0 V |
| Nhiệt độ hoạt động | 0C to +70C |
| Hộp | 68-PLCC (24.23 x 24.23 mm) |
| Kiểu lắp đặt | Surface Mount (J-Lead) |
| ADC | 11-channel, 10-bit (per family datasheet) |
| Communication | USART (SCI) |
| Timers | Two 8-bit + two 16-bit |
| Instruction Set Size | 58 instructions |
Cấu hình chân PIC17LC752-08/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 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Chân 6 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Chân 7 | RA6/AN6 — Port A bit 6 / analog input 6 |
| Chân 8 | RA7/AN7 — Port A bit 7 / analog input 7 |
| Chân 9 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Chân 10 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Chân 11 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Chân 12 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| Chân 13 | RB4 — Port B bit 4 |
| Chân 14 | RB5 — Port B bit 5 |
| Chân 15 | RB6 — Port B bit 6 |
| Chân 16 | RB7 — Port B bit 7 |
| Chân 17 | RC0/T1CKI — Port C bit 0 / Timer1 clock input |
| Chân 18 | RC1/CCP1 — Port C bit 1 / CCP1 |
| Chân 19 | RC2/CCP2 — Port C bit 2 / CCP2 |
| Chân 20 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 21 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 22 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 23 | RC6/TX/CK — Port C bit 6 / USART TX / clock |
| Chân 24 | RC7/RX/DT — Port C bit 7 / USART RX / data |
| Chân 25 | RD0 — Port D bit 0 |
| Chân 26 | RD1 — Port D bit 1 |
| Chân 27 | RD2 — Port D bit 2 |
| Chân 28 | RD3 — Port D bit 3 |
| Chân 29 | RD4 — Port D bit 4 |
| Chân 30 | RD5 — Port D bit 5 |
| Chân 31 | RD6 — Port D bit 6 |
| Chân 32 | RD7 — Port D bit 7 |
| Chân 33 | RE0/AN8 — Port E bit 0 / analog input 8 |
| Chân 34 | RE1/AN9 — Port E bit 1 / analog input 9 |
| Chân 35 | RE2/AN10 — Port E bit 2 / analog input 10 |
| Chân 36 | RE3/AN11 — Port E bit 3 / analog input 11 |
| Chân 37 | RE4 — Port E bit 4 |
| Chân 38 | RE5 — Port E bit 5 |
| Chân 39 | RE6 — Port E bit 6 |
| Chân 40 | RE7 — Port E bit 7 |
| Chân 41 | RF0 — Port F bit 0 |
| Chân 42 | RF1 — Port F bit 1 |
| Chân 43 | RF2 — Port F bit 2 |
| Chân 44 | RF3 — Port F bit 3 |
| Chân 45 | RF4 — Port F bit 4 |
| Chân 46 | RF5 — Port F bit 5 |
| Chân 47 | RF6 — Port F bit 6 |
| Chân 48 | RF7 — Port F bit 7 |
| Chân 49 | RG0 — Port G bit 0 |
| Chân 50 | RG1 — Port G bit 1 |
| Chân 51 | RG2 — Port G bit 2 |
| Chân 52 | RG3 — Port G bit 3 |
| Chân 53 | RG4 — Port G bit 4 |
| Chân 54 | MCLR/VPP — Master clear / programming voltage |
| Chân 55 | OSC1/CLKIN — Oscillator input / external clock |
| Chân 56 | OSC2/CLKOUT — Oscillator output / clock out |
| Chân 57 | VSS — Ground |
| Chân 58 | VDD — Positive supply |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | NC — Not connected (per datasheet) |
| Chân 61 | NC — Not connected (per datasheet) |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | NC — Not connected (per datasheet) |
| Chân 64 | NC — Not connected (per datasheet) |
| 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
PIC17LC752-08/L phù hợp cho 6 Áp dụngs: Industrial Control Panel, Motor Control Firmware Prototype, HVAC Thermostat Controller, Point-of-Sale Terminal, Test and Measurement Instrumentation, Embedded Control Board - Commercial Equipment.
Industrial Control Panel
The PIC17LC752-08/L's 50 general-purpose I/O pins, 33 MHz clock input, and 11-channel 10-bit ADC suit industrial control panels that scan keypads, drive LED/LCD indicators, and read analog sensor inputs such as temperature or pressure. Its 16KB OTP program memory accommodates mid-sized control firmware with state machines, and the 678-byte RAM supports moderate data buffering. Operated from a 3.3V or 5V industrial rail, the part delivers deterministic 121 ns instruction execution. Companion parts include a low-dropout regulator such as the LM7805 for the 5V rail, an RS-232/RS-485 transceiver for panel-bus connectivity, and an EEPROM like 24LC256 for parameter storage.
Được đề xuất
Motor Control Firmware Prototype
For motor-control prototypes the PIC17LC752-08/L's two 16-bit timers with PWM/capture/compare peripherals, plus 50 I/O for gate-drive and feedback signals, allow direct control of small DC or stepper motors. The 33 MHz clock input and 16-bit datapath execute fast inner-loop PID computations, while the hardware multiply unit accelerates control-law math. Designers should pair the MCU with a dedicated gate driver such as the IR2110 and Hall-sensor conditioning circuitry. The OTP memory is acceptable for prototypes where firmware is mature; switch to a Flash-based dsPIC33 for production.
Được đề xuất
HVAC Thermostat Controller
The PIC17LC752-08/L's integrated 10-bit ADC measures thermistor or RTD inputs for indoor/outdoor temperature sensing, while the USART interfaces to a Wi-Fi or sub-GHz module for remote telemetry. With 16KB of OTP firmware storage, the MCU can host scheduling logic, PID loops, and LCD/segment-display drivers. Its commercial 0C to +70C temperature range covers indoor HVAC enclosures. Companion parts include a 24LC256 EEPROM for setpoint backup, an SPI-segment LCD driver, and a relay-driver array for compressor and fan control.
Được đề xuất
Point-of-Sale Terminal
Point-of-sale terminals require an MCU that can drive a character LCD, scan a keypad matrix, and communicate over RS-232 to a receipt printer or back-office terminal. The PIC17LC752-08/L provides 50 I/O pins for keypad scanning and LCD interface, a USART for printer connectivity, and 16KB of OTP memory for transaction-logic firmware. Its 33 MHz throughput handles encryption-light operations and barcode-decoder algorithms. Note that OTP memory requires final firmware to be fully validated before programming - use a Flash-based PIC18F4550 for development and final migration.
Được đề xuất
Test and Measurement Instrumentation
Bench-top test instruments such as digital panel meters, frequency counters, and laboratory data loggers benefit from the PIC17LC752-08/L's 33 MHz throughput, 11-channel 10-bit ADC, and large I/O count for front-panel switches and 7-segment displays. The 16-bit datapath accelerates DSP-light filtering, while the OTP memory ensures firmware integrity in metrology applications. For higher-resolution ADCs, the MCU's SPI interface can connect to external 16-bit converters such as the ADS1115. Pair the MCU with a precision voltage reference like the REF5025 for ratiometric measurements.
Được đề xuất
Embedded Control Board - Commercial Equipment
Commercial equipment such as vending machines, washing-machine controllers, and access-control panels require reliable embedded control with a moderate code footprint. The PIC17LC752-08/L's 16KB OTP memory, 50 I/O, and 2.5V to 5.0V supply flexibility support coin/bill validator interfaces, solenoid drivers, keypad scanning, and LCD display. Its NRND status makes it appropriate for re-spinning existing designs rather than starting new ones; new designs should target Microchip's Flash-based PIC18F or dsPIC33 family. Companion parts include a watchdog supervisor like the MCP130 and a 24LC256 EEPROM for transaction audit trails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17LC752-08/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 | PIC17LC752T-08/L | PIC17C752-16/L | PIC17C756A-16I/PT |
|---|---|---|---|---|
| Package | 68-PLCC | 68-PLCC | 68-PLCC | 64-TQFP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 16 KB OTP EPROM | 16 KB OTP EPROM | 16 KB OTP EPROM | 16 KB OTP EPROM |
| RAM | 678 bytes | 678 bytes | 678 bytes | 902 bytes |
| Max Clock Input | 33 MHz | 33 MHz | 33 MHz | 33 MHz |
| I/O Pins | 50 | 50 | 50 | 52 |
| Supply Voltage | 2.5V to 5.0V | 2.5V to 5.0V | 4.5V to 6.0V | 4.5V to 6.0V |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C |
| Lifecycle Status | NRND | NRND | NRND | NRND |
Bảo phân biệt quan trọng
- Wider 2.5V to 5.0V supply range vs C-variant (vsPIC17C752-16/L)
- Identical die, only shipping format differs (vsPIC17LC752T-08/L)
- Larger 68-PLCC with 50 I/O vs 64-TQFP with 52 I/O (vsPIC17C756A-16I/PT)
Ghi chú thiết kế
The PIC17LC752-08/L uses OTP (One-Time-Programmable) EPROM memory that cannot be erased or re-programmed in-circuit. Validate firmware on a PIC17C44 or PIC17LC44 development equivalent before committing to the LC752 silicon. Once programmed, every silicon revision or bug fix requires a new chip and re-programming of all units in the field.
The LC variant operates from 2.5V to 5.0V; the standard C variant (e.g. PIC17C752-16/L) requires 4.5V to 6.0V and will not function at 3.3V rails. Decouple VDD with a 0.1uF ceramic capacitor placed within 5 mm of the VDD pin, plus a bulk 10uF tantalum or aluminum polymer cap near the package. The 68-PLCC has multiple VDD/VSS pins that must all be connected.
The 68-PLCC (24.23 x 24.23 mm) package is a J-lead surface-mount format suitable for standard SMT assembly, but its lead pitch is 1.27 mm, requiring careful solder-paste stencil design. For prototype breadboarding, use a PLCC-to-DIP adapter socket. Ensure the ICSP programming header (MCLR, RB6, RB7, VDD, VSS) is accessible on the PCB for factory programming of the OTP memory.
Thông tin tuân thủ
RoHS/REACH compliance status not stated in the verified web data for PIC17LC752-08/L. Microchip's PIC17C752 datasheet references document 30072c but does not surface compliance certifications on the distributor pages reviewed.
