PIC16C711-04/SS - 8-Bit 4MHz 1.75KB OTP MCU | Microchip | SSOP-20
MPN： PIC16C711-04/SS ✗ 停產PIC16C711-04/SS 概覽
What is an 8-bit OTP microcontroller? An 8-bit microcontroller is a small computer-on-a-chip that processes 8-bit data words and executes instructions from on-chip program memory. OTP memory is programmed once at production time and cannot be erased, which lowers die cost and is ideal for high-volume, fixed-function consumer and industrial products. Within the taxonomy, the PIC16C711 sits at: microcontroller -> 8-bit MCU -> OTP MCU -> PIC mid-range -> PIC16C71x family, and is classified as a power management/embedded control IC adjacent to the analog/mixed-signal hierarchy thanks to its integrated ADC.
Key features include 35 single-word instructions, 200 ns instruction cycle at 4 MHz, four 8-bit ADC channels with successive approximation register (SAR) architecture, an 8-bit timer/counter (TMR0), and a watchdog timer with on-chip RC oscillator for reliable operation. The PIC RISC Harvard architecture separates program and data buses, allowing instruction fetch and operand access in a single cycle.
The 13 I/O pins are bidirectional with individually controllable direction registers and support weak pull-ups. The integrated ADC samples at approximately 20 µs conversion time per channel with 8-bit resolution. The device operates across 2.5 V to 6.0 V supply range with low-power CMOS design, supporting both commercial and industrial temperature grades depending on the speed suffix.
Typical applications include appliance control, sensor signal conditioning, automotive subsystems (non-safety), battery chargers, and simple sensor interfaces. The 4 MHz speed grade is suitable for control-loop applications that do not require intensive computation but demand reliable mixed-signal integration. The recommended modern replacement per Microchip is the flash-based PIC16F716, which adds in-circuit programmability and is pin-compatible in similar packages.
When designing with the PIC16C711-04/SS, account for the OTP programming constraint: code must be fully validated before production programming because post-programming changes are impossible. Use Microchip's MPASM assembler and MPLAB development environment for code development. Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the pin, and keep the analog reference pin bypassed to minimize ADC noise.
This page synthesizes distributor pricing, drop-in compatible alternatives, and design notes not found on individual distributor pages.
直接替換替代品，適用於 PIC16C711-04/SS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16C711-04/SS （相同外形與佔位） — 差異在於 Package, Timers, Operating Temperature, ADC, Program Memory Size.
PIC16C711-04I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16C711-04/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16C710-04/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F716-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16C711T-04/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16C711-04/SS 最大額定值與電氣特性
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory Size | 1.75 KB (1K x 14) OTP |
| RAM Size | 68 bytes |
| 最大時脈頻率 | 4 MHz |
| Instruction Cycle Time | 200 ns at 4 MHz |
| Number of I/O Pins | 13 |
| ADC | 4 channels, 8-bit resolution |
| Timers | 1 x 8-bit (TMR0) |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Instruction Set | 35 single-word instructions |
| 工作溫度範圍 | 0C to +70C (commercial) |
| 封裝 | 20-pin SSOP (5.30 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Non-compliant (legacy OTP) |
| MSL 等級 | 1 (unlimited floor life) |
PIC16C711-04/SS 腳位配置
| 腳位 1 | RA2/AN2 — Bidirectional I/O / Analog input channel 2 |
| 腳位 2 | RA3/AN3 — Bidirectional I/O / Analog input channel 3 |
| 腳位 3 | RA4/T0CKI — Bidirectional I/O / Timer 0 clock input (open-drain) |
| 腳位 4 | MCLR/VPP — Master clear reset / Programming voltage input |
| 腳位 5 | VSS — Ground reference |
| 腳位 6 | RB0/INT — Bidirectional I/O / External interrupt input |
| 腳位 7 | RB1 — Bidirectional I/O port B |
| 腳位 8 | RB2 — Bidirectional I/O port B |
| 腳位 9 | RB3 — Bidirectional I/O port B |
| 腳位 10 | RB4 — Bidirectional I/O port B |
| 腳位 11 | RB5 — Bidirectional I/O port B |
| 腳位 12 | RB6 — Bidirectional I/O port B |
| 腳位 13 | RB7 — Bidirectional I/O port B |
| 腳位 14 | VDD — Positive supply voltage (2.5V-6.0V) |
| 腳位 15 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| 腳位 16 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| 腳位 17 | RA0/AN0 — Bidirectional I/O / Analog input channel 0 |
| 腳位 18 | RA1/AN1 — Bidirectional I/O / Analog input channel 1 |
| 腳位 19 | VREF — ADC voltage reference input |
| 腳位 20 | AVSS — Analog ground reference |
典型應用
PIC16C711-04/SS 適用於 6 應用s: Appliance Control Systems, Battery Charger Controllers, Sensor Interface Modules, Automotive Body Electronics, Simple LED Display Drivers, Remote Control and IR Transmitters.
Appliance Control Systems
The PIC16C711-04/SS suits appliance control boards (washing machines, microwave ovens, dishwashers) where cost-optimized fixed-function logic is required. Its 13 I/O pins drive relays, triacs, LED indicators, and keypad scanners directly, while the 4-channel 8-bit ADC monitors temperature sensors (NTC thermistors), water level probes, and motor current. The 4 MHz instruction cycle provides adequate bandwidth for PID-style control loops running at 100 Hz update rates. With 68 bytes of RAM and 1.75 KB OTP program memory, the device handles state-machine-based user interface logic without external memory. Production programming is performed once via standard Microchip device programmers.
推薦
Battery Charger Controllers
The PIC16C711-04/SS provides intelligent charging control for lead-acid and NiMH battery packs in consumer and industrial chargers. The integrated ADC samples battery voltage and current sense amplifier outputs, while the 8-bit timer generates PWM control signals for switching FET drivers. The 2.5-6.0 V operating range aligns directly with single-cell lithium and multi-cell NiMH battery stacks. OTP programming locks the charging algorithm at production, eliminating field tampering. Watchdog timer ensures recovery from supply glitches during charging transitions.
推薦
Sensor Interface Modules
Sensor interface modules for HVAC, environmental monitoring, and industrial process control benefit from the PIC16C711-04/SS integrated ADC and flexible I/O. Four 8-bit ADC channels digitize signals from thermistors, photocells, pressure sensors, and 4-20 mA loop transmitters. The 13 digital I/O pins drive indicator LEDs, communicate with peripheral UART devices, and trigger alarms. Operating from 2.5-6.0 V, the device interfaces directly with 3.3 V and 5 V sensor rails. Low CMOS power consumption enables solar-powered remote sensor nodes.
推薦
Automotive Body Electronics
Non-safety automotive body electronics (window controllers, seat adjusters, mirror positioners, interior lighting) commonly use the PIC16C711-04/SS in commercial-grade variants or the industrial-grade /04I/SS suffix for under-hood or cabin modules. The 4-channel ADC reads potentiometer wiper positions for seat position feedback, while digital I/O drives motor H-bridge enable lines. OTP memory locks the calibration data and prevents unauthorized field modification. For new automotive designs, migrate to the AEC-Q100 qualified PIC16F716-I/SS with enhanced EMC immunity.
推薦
Simple LED Display Drivers
The PIC16C711-04/SS drives multiplexed 7-segment LED displays, dot-matrix indicators, and Charlieplexed LED arrays in consumer electronics and industrial HMIs. Software-based multiplexing (via timer interrupts) eliminates the need for external display driver ICs, reducing BOM cost. The 13 I/O pins support up to 12 multiplexed LED segments plus common-anode/cathode drivers. The 35-instruction PIC RISC architecture enables tight scan loops with predictable timing, critical for flicker-free LED operation at refresh rates above 100 Hz.
推薦
Remote Control and IR Transmitters
Consumer remote controls (TV, set-top box, audio equipment) and IR-based wireless sensor transmitters are ideal applications for the PIC16C711-04/SS. Its 4 MHz speed generates accurate 38 kHz / 40 kHz carrier frequencies for IR modulation without external crystals, using the internal RC oscillator option. Low-power CMOS operation extends battery life in handheld units. OTP programming prevents reverse engineering of proprietary IR protocols. The 8-bit timer (TMR0) handles carrier generation while the main loop processes button matrix scanning.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16C711-04/SS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16C711-04I/SS | PIC16C710-04/SS | PIC16F716-I/SS |
|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.75 KB OTP | 1.75 KB OTP | 0.875 KB OTP | 2 KB Flash |
| RAM Size | 68 bytes | 68 bytes | 36 bytes | 128 bytes |
| ADC | 4-ch 8-bit | 4-ch 8-bit | None | Enhanced 8/10-bit |
| Memory Type | OTP (one-time programmable) | OTP | OTP | Flash (reprogrammable) |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Operating Temperature | 0C to +70C | -40C to +85C | 0C to +70C | -40C to +85C |
| I/O Pins | 13 | 13 | 13 | 13 |
| Lifecycle Status | NRND | NRND | NRND | Active |
主要差異化特點
- Integrated 4-channel 8-bit ADC on-chip (對比PIC16C710-04/SS)
- Modern flash memory upgrade path (對比PIC16F716-I/SS)
- Commercial temperature grade (對比PIC16C711-04I/SS)
設計說明
The OTP (One-Time Programmable) memory is programmed once during production and CANNOT be erased or rewritten. Validate all firmware using PIC16C711 flash-emulator devices (PIC16F716 or PIC16F84A with compatible peripherals) before committing to OTP programming. Plan for factory rejects and tooling costs. The MCLR pin must be pulled high through a 10 kOhm resistor for normal operation; if left floating, the device may intermittently reset or fail to start.
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and connect AVSS (pin 20) directly to VSS (pin 5) with a short trace. For ADC applications, add a 10 uF bulk capacitor on VDD and a separate 0.1 uF bypass on VREF (pin 19) to minimize ADC conversion noise. The ADC sample-and-hold acquisition time must exceed 20 µs for full 8-bit accuracy.
Route the oscillator traces (OSC1/OSC2) as short as possible and keep them away from high-current switching signals. Use a ground guard ring around the oscillator components. For crystal operation, add load capacitors per the crystal manufacturer's specifications (typically 15-22 pF). The SSOP-20 package has a thermal pad on the underside that should be soldered to a copper pour for improved thermal dissipation, although this MCU's CMOS current draw is low enough that thermal concerns are minimal at 4 MHz.
The PIC16C711 is NRND (Not Recommended for New Designs) per Microchip's product lifecycle. For all new product developments, migrate to the flash-based PIC16F716 which offers larger memory (2 KB flash vs 1.75 KB OTP), in-circuit serial programming (ICSP), enhanced ADC, PWM module, and active lifecycle status. The PIC16F716 is pin-compatible in similar SSOP-20 packages.
合規資訊
Legacy OTP part, not lead-free / not RoHS compliant in original SSOP-20 form. Not AEC-Q100 qualified; for automotive use, migrate to PIC16F716-I/SS. REACH compliance maintained by Microchip supply chain.
