PIC17C756A-16E/L - 8-Bit 16MHz OTP MCU 32KB | 68-PLCC | Microchip
MPN: PIC17C756A-16E/L ✗ Cuối đờiPIC17C756A-16E/L Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and peripherals (I/O, timers, ADC, communication ports) onto one silicon die. Within the broader semiconductor taxonomy, an MCU belongs to the class of embedded processors -> microcontrollers -> 8-bit microcontrollers. The PIC17C family sits at the high end of Microchip's 8-bit lineup, distinguished by a wider 16-bit instruction word and Harvard architecture that separates program and data buses for simultaneous fetch and execute.
Key features of the PIC17C756A include a 16-level hardware stack, eight 16-bit timer/counters, a 12-bit 8-channel ADC, two USART ports, and an instruction set of only 58 single-word instructions (121 ns single-cycle), with program branches and table reads/writes being two-cycle (242 ns). The "-16E" suffix indicates 16 MHz maximum clock with extended temperature grade, and the "/L" suffix denotes the 68-pin PLCC package.
The PIC17C756A uses a CMOS process with a 16-bit instruction bus and 8-bit data bus, enabling 16K x 16 OTP program memory while keeping RAM access on a separate 8-bit bus for throughput. The 16 MHz oscillator drives a four-phase internal clock that completes most instructions in one cycle, achieving the 8.25 MIPS throughput at maximum frequency. Multiple interrupt sources (up to 17 vectors) support real-time control applications.
Typical applications include industrial automation controllers, automotive body and chassis electronics (extended temp grade), building automation HVAC systems, motor control front-ends, and white-goods appliance controllers. Its 50 I/O pins and 12-bit ADC make it well suited to multi-channel sensor aggregation and human-machine interface panels where 8-bit processing and ample I/O are sufficient.
When designing with the PIC17C756A, note that OTP memory requires a device programmer for firmware loading - for in-system reprogrammability, Microchip recommends migrating to the flash-based PIC18F6520 successor. The 68-PLCC package uses J-leads for through-hole-style socket mounting that is also compatible with surface-mount sockets.
Bộ thay thế dễ dàng lắp đặt cho PIC17C756A-16E/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 PIC17C756A-16E/L (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, Operating Temperature, Mounting Type, ADC.
PIC17C756A-16E/PT
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PIC17C756AT-16E/PT
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Xem tài liệu →PIC17C756A-16E/L Tỷ lệ tối đa & tính chất điện
| Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 32 KB (16K x 16) |
| RAM | 902 bytes |
| Maximum CPU Frequency | 16 MHz |
| Instruction Throughput | 8.25 MIPS (121 ns/instruction) |
| Instruction Set Size | 58 single-word instructions |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Extended) |
| I/O Pins | 50 |
| ADC | 12-bit, 8-channel |
| Timers | 4 x 16-bit Timer/Counters |
| Communication | 2 x USART (SCI) |
| Hộp | 68-PLCC (24.23 x 24.23 mm) |
| Kiểu lắp đặt | Through-Hole / Socket |
Cấu hình chân PIC17C756A-16E/L
| Chân 1 | RA0/AN0 — Port A bit 0 / ADC channel 0 |
| Chân 2 | RA1/AN1 — Port A bit 1 / ADC channel 1 |
| Chân 3 | RA2/AN2 — Port A bit 2 / ADC channel 2 |
| Chân 4 | RA3/AN3 — Port A bit 3 / ADC channel 3 |
| Chân 5 | RA4/AN4 — Port A bit 4 / ADC channel 4 |
| Chân 6 | RA5/AN5 — Port A bit 5 / ADC channel 5 |
| Chân 7 | RA6/AN6 — Port A bit 6 / ADC channel 6 |
| Chân 8 | RA7/AN7 — Port A bit 7 / ADC channel 7 |
| Chân 9 | VSS — Ground reference |
| Chân 10 | VDD — Positive supply (4.5V-5.5V) |
| 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 | RC0/T1CKI — Port C bit 0 / Timer1 clock input |
| Chân 20 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| Chân 21 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| Chân 22 | RC3/CCP2 — Port C bit 3 / Capture/Compare/PWM 2 |
| Chân 23 | RC4 — Port C bit 4 |
| Chân 24 | RC5 — Port C bit 5 |
| Chân 25 | RC6/TX1 — Port C bit 6 / USART1 transmit |
| Chân 26 | RC7/RX1 — Port C bit 7 / USART1 receive |
| 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 | VSS — Ground reference |
| Chân 44 | VDD — Positive supply (4.5V-5.5V) |
| Chân 45 | OSC1/CLKIN — Oscillator crystal input / external clock |
| Chân 46 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Chân 47 | MCLR — Master Clear reset (active low) |
| Chân 48 | T0CKI — Timer0 clock input |
| Chân 49 | RF0 — Port F bit 0 |
| Chân 50 | RF1 — Port F bit 1 |
| Chân 51 | RF2 — Port F bit 2 |
| Chân 52 | RF3 — Port F bit 3 |
| Chân 53 | RF4 — Port F bit 4 |
| Chân 54 | RF5 — Port F bit 5 |
| Chân 55 | RF6 — Port F bit 6 |
| Chân 56 | RF7 — Port F bit 7 |
| Chân 57 | RG0 — Port G bit 0 |
| Chân 58 | RG1 — Port G bit 1 |
| Chân 59 | RG2 — Port G bit 2 |
| Chân 60 | RG3 — Port G bit 3 |
| Chân 61 | RG4 — Port G bit 4 |
| Chân 62 | VSS — Ground reference |
| Chân 63 | VDD — Positive supply (4.5V-5.5V) |
| 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
PIC17C756A-16E/L phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Automotive Body Electronics, HVAC and Building Automation, White-Goods Appliance Controllers, Motor Control Front-Ends, Sensor Aggregation Hubs.
Industrial Automation Controllers
The PIC17C756A-16E/L fits industrial PLC and machine controller designs because its 16 MHz / 8.25 MIPS throughput handles deterministic control loops, its 50 I/O pins aggregate many sensors and actuators without external expanders, and the 12-bit 8-channel ADC delivers accurate process-variable digitization. The extended -40C to +125C temperature grade tolerates factory-floor thermal stress. Placed on the backplane with a 5V regulator and digital isolators, it executes scan-and-actuate loops within tight cycle budgets. Power consumption at 5V/16 MHz is moderate, making it suitable for chassis-mounted controllers in continuous operation. Source: Microchip datasheet DS30262A.
Được đề xuất
Automotive Body Electronics
The PIC17C756A-16E/L is suitable for body controllers, instrument clusters, and HVAC modules because the -40C to +125C extended temperature grade handles under-dash thermal swings, the 12-bit ADC reads sensor inputs accurately, and 2 USART ports interface body networks. The 50 I/O pins drive lamps, motors, and switches without external mux. Unlike flash parts it uses OTP memory, so firmware must be loaded via a production programmer - acceptable for high-volume automotive runs where cost is critical. Trade-off vs PIC18F6520: no in-system reprogramming. Source: Microchip datasheet DS30262A.
Được đề xuất
HVAC and Building Automation
The PIC17C756A-16E/L powers thermostats, damper actuators, and access-control panels because its 12-bit ADC and 50 I/O pins support multiple temperature/humidity/pressure sensors simultaneously, while the 16 MHz CPU runs PID control loops with sufficient margin for user-interface servicing. The extended temperature grade tolerates rooftop equipment enclosures. Used with MCP9700 temperature sensors and a character LCD, it forms a low-BOM HVAC controller. Power-down sleep mode reduces quiescent for battery-backed thermostats. Trade-off vs PIC18F6520: OTP memory requires factory programming. Source: Microchip datasheet DS30262A.
Được đề xuất
White-Goods Appliance Controllers
The PIC17C756A-16E/L drives washing-machine, dishwasher, and refrigerator control boards because its 50 I/O pins handle keypad, display, motor relay, and sensor matrix without external expanders, and the 12-bit ADC reads water level, temperature, and motor current. The -40C to +125C extended temp grade survives appliance thermal cycles. Its 16 MIPS throughput runs the user-interface plus the motor-control state machine. OTP memory suits high-volume appliance runs where firmware is fixed at production. Trade-off vs PIC18F6520: cannot field-update. Source: Microchip datasheet DS30262A.
Được đề xuất
Motor Control Front-Ends
The PIC17C756A-16E/L serves as the command processor in BLDC and stepper motor controllers because its 4 hardware 16-bit timers generate PWM and capture feedback pulses, the 12-bit ADC reads phase currents, and the 50 I/O pins drive gate-driver enable signals. The 16 MHz CPU handles commutation tables and PI loops for low-RPM servos. Used with IR2101 gate drivers and ACS712 current sensors, it forms a complete 3-phase motor controller. Trade-off: at high PWM frequencies the 8-bit throughput becomes a bottleneck vs dsPIC33. Source: Microchip datasheet DS30262A.
Được đề xuất
Sensor Aggregation Hubs
The PIC17C756A-16E/L aggregates multi-channel sensor data because its 12-bit 8-channel ADC and 50 I/O pins handle many analog/digital sensors simultaneously, and the 2 USART ports bridge to upstream MCUs or host processors. It is well suited for data-acquisition front-ends in industrial and environmental monitoring. With an RS-485 transceiver like MAX485, it can serve as a remote sensor node on a Modbus network. Trade-off vs dsPIC33: no DSP extensions but lower cost. Source: Microchip datasheet DS30262A.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17C756A-16E/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-16E/PT | PIC17C756AT-16E/L | PIC17C756AT-16I/L |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 68-PLCC (L) | 68-TQFP (PT) | 68-PLCC (L) - same | 68-PLCC (L) - same |
| Architecture | 8-bit PIC17C RISC | 8-bit PIC17C RISC | 8-bit PIC17C RISC | 8-bit PIC17C RISC |
| Program Memory | 32 KB OTP | 32 KB OTP | 32 KB OTP | 32 KB OTP |
| Maximum Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| RAM | 902 bytes | 902 bytes | 902 bytes | 902 bytes |
| I/O Pins | 50 | 50 | 50 | 50 |
| Operating Temperature | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Lifecycle Status | NRND | NRND | NRND | NRND |
| Approx. Unit Price (qty 1) | $18.50 | $19.20 | $18.50 | $17.80 |
Bảo phân biệt quan trọng
- Extended temperature grade operation (vsPIC17C756AT-16I/L)
- OTP memory vs flash in PIC18F6520 (vsPIC18F6520)
- 50 I/O pins in 68-PLCC package (vsPIC16LF877-I/P)
Ghi chú thiết kế
The PIC17C756A-16E/L operates from a single 4.5V to 5.5V supply. Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair (the device has 3 supply pin pairs: pins 10/9, 44/43, 63/62). Add a bulk 10 uF tantalum or low-ESR ceramic capacitor at the regulator output. The MCLR pin (pin 47) should be tied to VDD through a 10 kohm pull-up; add a 100 nF capacitor to ground for noise immunity on reset.
Route the 16 MHz oscillator traces (OSC1/OSC2, pins 45/46) as short as possible and surround with a ground pour to minimize EMI pickup. Keep clock traces away from high-current switching nodes. The 68-PLCC package uses J-leads; use a PLCC socket for in-circuit programming during development. Source: Microchip datasheet DS30262A.
OTP memory cannot be erased - a programming error bricks the device. Always verify the firmware image with checksum validation before production programming. The -16E/L suffix is the extended temperature grade; using -I (industrial) variants in extended-temp environments will cause out-of-spec operation. Verify the suffix matches your application environment. Source: Microchip datasheet DS30262A.
Thông tin tuân thủ
RoHS/REACH compliance status not provided in source data; PIC17C756A-16E/L is a legacy 5V OTP part originally released in the late 1990s, predating many modern compliance certifications. AEC-Q100 not applicable - the E suffix denotes extended industrial temp grade, not automotive qualification. Refer to Microchip product page or distributor for current compliance documentation.
