PIC16C77-10/L - 8-Bit 10MHz OTP MCU, 14KB, 44-PLCC | Microchip
MPN: PIC16C77-10/L ✗ Cuối đờiPIC16C77-10/L Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/EPROM), data memory (RAM), and peripherals such as timers, I/O ports, ADCs, and communication interfaces. The PIC16C77 belongs to the mid-range PIC16C family, positioned within the PIC architecture hierarchy of PIC10/12/14/16/18/24/dsPIC families, and is built on OTP (One-Time Programmable) EPROM technology, meaning the program memory can be written only once but offers mature, well-characterized CMOS behavior.
Key features include 33 digital I/O lines, an 8-channel 8-bit A/D converter, three timers (Timer0, Timer1, Timer2), a USART module for serial communication, and an instruction execution time of 200 ns at 10 MHz. The device operates from 4.0 V to 6.0 V across an industrial temperature range of -40 °C to +85 °C, and is upward code-compatible with PIC16C5X and PIC12CXXX devices, easing migration for legacy designs.
Architecturally, the PIC16C77 uses a Harvard-style RISC core with 35 single-word instructions, a hardware stack of 8 levels, and direct/indirect addressing modes. Its CMOS-EPROM process gives low standby current (~1 µA typical) and robust noise immunity, while on-chip peripherals such as the Capture/Compare/PWM module and the parallel slave port make it suitable for embedded control tasks without external glue logic.
Typical applications include industrial automation controllers, motor control front-ends, instrumentation with analog sensing, automotive body electronics modules, and legacy embedded systems requiring a 5 V supply rail. The 33 I/O pins allow direct connection to keypads, LED or LCD displays, and analog sensors through the integrated ADC.
When designing with the PIC16C77-10/L, note that OTP memory cannot be erased, so firmware must be fully verified before programming; a windowed UV-erasable variant (PIC16C77JW) is recommended for prototype development. The 44-PLCC footprint simplifies through-hole and socketed assembly, supporting field-replaceable modules in industrial equipment.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling faster sourcing and design-in decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16C77-10/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 PIC16C77-10/L (cùng hình factor và footprint) — khác nhau ở Core Architecture, Program Memory Type, Operating Temperature, Serial Interfaces, Package.
PIC16C77-04/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C77-20/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C77-04I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C77-04/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F77-I/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C77-10/L Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 16C (Mid-Range Harvard RISC) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 14 KB (8K x 14) |
| RAM | 368 bytes |
| CPU Speed | 10 MHz |
| Instruction Execution Time | 200 ns |
| Number of Instructions | 35 |
| I/O Pins | 33 |
| ADC | 8 channels, 8-bit |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Serial Interface | USART (SCI) |
| CCP/PWM Module | Yes |
| Supply Voltage (Vcc) | 4.0 V to 6.0 V |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Hộp | 44-pin PLCC (J-Lead, 16.59 x 16.59 mm) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân PIC16C77-10/L
| Chân 1 | MCLR/Vpp — Master Clear (Reset) input / Programming voltage |
| Chân 2 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| Chân 3 | OSC2/CLKOUT — Oscillator crystal output / Clock output (RC1) |
| Chân 4 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Chân 5 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Chân 6 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Chân 7 | RA3/AN3/Vref — PORTA bit 3 / Analog input 3 / ADC Vref |
| Chân 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 9 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / Slave Select |
| Chân 10 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port Read / Analog input 5 |
| Chân 11 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port Write / Analog input 6 |
| Chân 12 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port Chip Select / Analog input 7 |
| Chân 13 | Vss — Ground reference |
| Chân 14 | Vdd — Positive supply voltage (4.0 V to 6.0 V) |
| Chân 15 | OSC1 — (duplicate — see pin 2 in package variant) |
| Chân 16 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 17 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| Chân 18 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O |
| Chân 19 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 20 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 21 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 22 | RC6/TX/CK — PORTC bit 6 / USART async transmit / sync clock |
| Chân 23 | RC7/RX/DT — PORTC bit 7 / USART async receive / sync data |
| Chân 24 | RB0/INT — PORTB bit 0 / External interrupt input |
| Chân 25 | RB1 — PORTB bit 1 |
| Chân 26 | RB2 — PORTB bit 2 |
| Chân 27 | RB3 — PORTB bit 3 |
| Chân 28 | RB4 — PORTB bit 4 |
| Chân 29 | RB5 — PORTB bit 5 |
| Chân 30 | RB6/PGC — PORTB bit 6 / ICSP clock (serial programming) |
| Chân 31 | RB7/PGD — PORTB bit 7 / ICSP data (serial programming) |
| Chân 32 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Chân 33 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Chân 34 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Chân 35 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Chân 36 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Chân 37 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Chân 38 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Chân 39 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Chân 40 | Vss — Ground reference |
| Chân 41 | Vdd — Positive supply voltage (4.0 V to 6.0 V) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C77-10/L phù hợp cho 6 Áp dụngs: Industrial Process Control, Motor Control Front-End, Instrumentation with Analog Sensing, Automotive Body Electronics, Embedded HMI Keypad/Display Controllers, Legacy Embedded System Maintenance.
Industrial Process Control
The PIC16C77-10/L fits industrial process controllers because it delivers 33 digital I/O lines, 8 channels of 8-bit ADC, and a USART for host communication on a single 5 V rail. Its 14 KB OTP program memory accommodates mid-sized ladder-logic or state-machine code, while the Harvard RISC core provides deterministic 200 ns instruction timing for time-critical loops. The industrial -40 to +85 °C temperature range suits factory-floor deployments, and the 44-PLCC package supports socketed modules for fast field replacement.
Được đề xuất
Motor Control Front-End
In motor-control subsystems the PIC16C77-10/L serves as the command and feedback front-end, generating PWM via its Capture/Compare/PWM module and reading back encoder or current-sense signals through the ADC. The 10 MHz instruction cycle provides 200 ns resolution, enough for sub-millisecond torque loops on fractional-horsepower DC or stepper drives. With 33 I/O, the MCU can multiplex bridge driver controls, fault inputs, and HMI buttons without external glue logic.
Được đề xuất
Instrumentation with Analog Sensing
The integrated 8-channel 8-bit ADC makes the PIC16C77-10/L suitable for multi-sensor instruments such as temperature loggers, weigh scales, or gas-detection boards. Each ADC conversion completes in roughly 20 µs, allowing up to 50,000 samples per second aggregate, which exceeds the update requirements of most low-bandwidth instrumentation. The 368 bytes of RAM buffer instantaneous readings while the USART streams them to a host PC or display module.
Được đề xuất
Automotive Body Electronics
Within 12 V-derived automotive body modules (seat controllers, mirror adjusters, climate panels) the PIC16C77-10/L functions as a 5 V logic island providing switch scanning, lighting PWM, and LIN-style serial communication through its USART. The MCU's CMOS-EPROM design is rugged against automotive electrical transients when paired with external TVS protection. Industrial temperature rating of -40 to +85 °C covers cabin and under-hood zones, and 33 I/O lines accommodate multi-channel body loads.
Được đề xuất
Embedded HMI Keypad/Display Controllers
The PIC16C77-10/L drives small HMIs that combine 4x4 keypads, 7-segment or character LCDs, and indicator LEDs, because its 33 I/O pins can scan a matrix keypad and refresh an LCD bus directly. At 10 MHz the firmware can debounce keys and refresh displays in real time without missing presses. The USART enables updates from a master controller, making this MCU a flexible peripheral in larger distributed-embedded systems.
Được đề xuất
Legacy Embedded System Maintenance
The PIC16C77-10/L is a direct fit for maintenance of long-lifecycle industrial or military systems originally designed around the PIC16C7X family, where OTP memory prevents unauthorized field firmware updates and the 44-PLCC package enables socketed board-level replacement. The MCU's mature CMOS-EPROM process is widely understood and supported by legacy compilers and emulators. Designers can perform drop-in board swaps using PIC16C77-04/L, -20/L, or industrial -I variants with identical pinouts.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C77-10/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 | PIC16C77-04/L | PIC16C77-20/L | PIC16C77-04I/L | PIC16C77-04/PT | PIC16F77-I/L |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin PLCC (J-Lead) | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin TQFP (PT) - same die, SMD variant | 44-pin PLCC (J-Lead) - same |
| Core / Family | PIC16C Mid-Range 8-bit | PIC16C Mid-Range 8-bit | PIC16C Mid-Range 8-bit | PIC16C Mid-Range 8-bit | PIC16C Mid-Range 8-bit | PIC16F Mid-Range 8-bit (Flash) |
| Program Memory | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB Flash |
| Max Clock Speed | 10 MHz | 4 MHz (-60%) | 20 MHz (+100%) | 4 MHz (-60%) | 4 MHz (-60%) | 20 MHz (+100%) |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Operating Voltage | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 2.0 V to 5.5 V (Flash version) |
| Temperature Range | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C | 0 °C to +70 °C | -40 °C to +85 °C (Industrial) | 0 °C to +70 °C | -40 °C to +85 °C (Industrial) |
Bảo phân biệt quan trọng
- Higher clock speed than the -04 variant (vsPIC16C77-04/L)
- Lower cost option than -20 grade for clock-limited systems (vsPIC16C77-20/L)
- OTP memory for code-locked applications (vsPIC16F77-I/L)
Ghi chú thiết kế
The PIC16C77-10/L uses OTP EPROM which cannot be electrically erased. Verify all firmware logic on a windowed UV-erasable variant (PIC16C77JW) or use a development toolchain with full simulation before programming production units. In-circuit programming is not supported on OTP parts, so failed programming yields scrap parts. Allow a programming-margin margin of at least 10 % above the Vpp spec during in-circuit programming.
Place a 100 nF decoupling capacitor as close as possible to the Vdd pins (pins 14 and 41 on the 44-PLCC) with a short trace to Vss. Add a 10 µF bulk capacitor at the board entry point to suppress noise injected by relay coils or motor loads. The PIC16C77-10/L is rated for 4.0 V to 6.0 V; operation outside this range can cause memory corruption or ADC reference drift. Estimated: typical operating current is 5 mA active and 1 µA standby.
The 44-pin PLCC package provides J-leads that wrap under the package body; ensure the land pattern follows JEDEC MS-018 guidelines with at least 0.5 mm pad overhang. For socketed designs, use a Mill-Max or 3M Textool PLCC socket to allow field replacement. Keep the crystal oscillator traces (OSC1/OSC2) under 10 mm and surround them with a ground guard ring to avoid noise coupling into the internal oscillator.
Thông tin tuân thủ
RoHS and lead-free status not explicitly stated in verified web data; set to unknown pending datasheet confirmation. AEC-Q100 not applicable for non-automotive-grade OTP MCU; choose automotive-grade PIC16C77-10I/L variants for AEC-Q100 contexts.
