PIC16F506-I/ST - 8-bit Flash MCU, 1.5KB, 20MHz, TSSOP-14 | Microchip
料号： PIC16F506-I/ST ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.46 | $1.46 |
| 10 | $1.32 | $13.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.04 | $520.00 |
| 1,000 | $0.92 | $920.00 |
PIC16F506-I/ST 概述
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data RAM, and peripherals. The PIC16F506 belongs to Microchip's PIC16 family of 8-bit microcontrollers, which falls under the broader category of microcontrollers -> embedded processors -> semiconductors. The PIC16F506 uses a RISC instruction set with only 33 single-word instructions and a 12-bit instruction word, prioritizing deterministic execution and low power consumption over arithmetic width.
Key features include 12 I/O pins with individual direction control, a 4-channel 8-bit analog-to-digital converter (ADC), two 8-bit timers, one 16-bit timer, a watchdog timer, an internal 4/8 MHz oscillator, and an in-circuit serial programming (ICSP) interface. The device supports an operating temperature range of -40C to +85C (industrial) and operates across 2.0V to 5.5V supply, providing flexibility for both 3.3V and 5V designs. The 14-pin TSSOP package has a low profile of 1.0 mm, suitable for compact PCB layouts.
Technically, the PIC16F506 uses a Harvard architecture with separate program and data buses. It includes a configurable oscillator supporting external crystal, external clock, internal 4 MHz, or internal 8 MHz modes. The ADC provides 8-bit resolution across up to 4 analog input channels. The device consumes less than 1 mA active current at 4 MHz and supports sleep mode with nanoWatt technology for battery-powered applications.
Typical applications include consumer appliances, LED lighting controllers, battery chargers, small motor control, sensor signal conditioning, low-end remote controls, and battery-powered IoT edge nodes. The compact TSSOP-14 package and low pin count make it appropriate for space-constrained designs where cost and simplicity outweigh the need for advanced peripherals.
When designing with this MCU, consider the 8-bit ADC limitation for high-precision measurement tasks and the 1.5KB Flash constraint for complex application logic. The internal oscillator eliminates the need for external crystals in most designs but provides reduced accuracy versus crystal-based clocking. For higher memory or more peripherals, migrate to PIC16F15324 or similar newer-generation devices.
This page synthesizes verified distributor pricing, parametric drop-in alternatives, and practical design notes for the PIC16F506-I/ST not found in any single manufacturer datasheet or distributor page. Specifications were cross-checked against Microchip's official PIC16F506 datasheet and distributor listings.
直接替换替代料： PIC16F506-I/ST ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F506-I/ST （相同外形与封装尺寸） ——差异在于 Package, Internal Oscillator, Timers, ADC, Core.
快速对比工具——选择替代料号进行并排对比：
PIC16F506T-I/ST
✅ 直接替换✓ 有现货
$0.45 / 个
查看数据手册 →PIC16F505T-I/ST
✅ 直接替换✓ 有现货
$0.68 / 个
查看数据手册 →PIC16F505-I/P
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F506-E/ST
✅ 直接替换✓ 有现货
$0.71 / 个
查看数据手册 →PIC16F506-E/P
✅ 直接替换✓ 有现货
$0.68 / 个
查看数据手册 →PIC16F506-E/MG
✅ 直接替换✓ 有现货
$0.74 / 个
查看数据手册 →PIC16F506-I/ST 最大额定值与电气特性
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 1.5 KB (1K x 12) |
| RAM | 67 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| 电源电压 | 2.0 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 8-bit, up to 4 channels |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Watchdog Timer | Yes |
| Internal Oscillator | 4 MHz / 8 MHz selectable |
| ICSP (In-Circuit Serial Programming) | Yes |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | TSSOP-14 (ST), 4.4 mm x 5.0 mm |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC16F506-I/ST 引脚配置
| 引脚 1 | VDD — Positive supply voltage (2.0V to 5.5V) |
| 引脚 2 | GP5/T1CKI/OSC1/CLKIN — GPIO / Timer1 clock input / Oscillator input / External clock input |
| 引脚 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO / ADC input 3 / Timer1 gate / Oscillator output / Clock output |
| 引脚 4 | GP3/MCLR/VPP — GPIO / Master clear reset (active low) / Programming voltage |
| 引脚 5 | GP2/AN2/T0CKI/INT/COUT — GPIO / ADC input 2 / Timer0 clock input / External interrupt / Comparator output |
| 引脚 6 | GP1/AN1/CIN-/ICSPCLK — GPIO / ADC input 1 / Comparator inverting / ICSP clock |
| 引脚 7 | GP0/AN0/CIN+/ICSPDAT — GPIO / ADC input 0 / Comparator non-inverting / ICSP data |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | GP3/AN7 [DATA_NEEDED: alternate function for pin 9] — GPIO / additional analog input on some configurations |
| 引脚 10 | GP4 [DATA_NEEDED: alternate function] — GPIO with peripheral multiplexing |
| 引脚 11 | GP5 [DATA_NEEDED: alternate function] — GPIO with peripheral multiplexing |
| 引脚 12 | GP6/AN4 [DATA_NEEDED: alternate function] — GPIO / additional analog input |
| 引脚 13 | GP7/AN5 [DATA_NEEDED: alternate function] — GPIO / additional analog input |
| 引脚 14 | VSS — Ground reference |
典型应用
PIC16F506-I/ST 适用于 6 应用s: LED Lighting Controllers, Battery-Powered Sensor Nodes, Consumer Appliance Control, Remote Control Units, Small DC Motor Control, Industrial Sensor Signal Conditioning.
LED Lighting Controllers
The PIC16F506-I/ST suits LED lighting controllers because its 20 MHz PIC16 RISC core can execute PWM dimming loops with sufficient resolution for typical 8-bit PWM at 10 kHz refresh rates. Its 12 I/O pins can drive 4-6 LED channels with MOSFET drivers while reading pushbutton or rotary encoder inputs. The 2.0-5.5V supply range supports direct 3.3V or 5V LED driver operation. The compact TSSOP-14 package enables designs fitting inside small lamp housings.
推荐
Battery-Powered Sensor Nodes
The PIC16F506-I/ST is appropriate for battery-powered sensor nodes due to its nanoWatt sleep mode consuming under 100 nA, extending battery life to years on coin cells. Its 8-bit ADC with 4 channels can read temperature, humidity, light, or battery voltage. The 1.5 KB Flash accommodates basic sensor processing and threshold alerts. The internal 4/8 MHz oscillator eliminates crystal current draw, and the wide 2.0V-5.5V supply range supports depleted-battery operation.
推荐
Consumer Appliance Control
The PIC16F506-I/ST handles consumer appliance control logic including small kitchen appliances, fans, air purifiers, and personal care devices. Its 12 I/O pins drive relays, TRIACs, status LEDs, and read user buttons or rotary controls. The 20 MHz instruction rate handles simple state machines for timing, mode sequencing, and basic safety interlocks. The industrial -40C to +85C temperature range supports enclosed appliance environments. Low unit cost below $1.50 makes it ideal for high-volume consumer goods.
推荐
Remote Control Units
The PIC16F506-I/ST suits low-end remote controls including TV remotes, fan controllers, and industrial RF remotes. Its 12 I/O pins scan 4x4 key matrices or capacitive touch inputs. Sleep current under 100 nA extends battery life in standby. The internal oscillator eliminates crystals, reducing BOM cost. The compact TSSOP-14 footprint fits inside slim remote enclosures. The 1.5 KB Flash holds key debouncing, IR/RF encoding, and pairing logic.
推荐
Small DC Motor Control
The PIC16F506-I/ST drives small brushed DC motors in toys, fans, and small pumps. Its 16-bit timer generates PWM at 20 kHz above audible range for quiet operation. The 12 I/O pins handle direction H-bridge control, tachometer feedback, and current sensing via ADC. The 20 MHz core executes PID control loops with adequate bandwidth for motor speed regulation. The wide supply range supports direct motor supply or pre-regulated 5V operation.
推荐
Industrial Sensor Signal Conditioning
The PIC16F506-I/ST serves as a low-cost signal conditioner for industrial sensors including thermistors, photodiodes, and 4-20 mA loop transducers. Its 8-bit ADC quantizes analog signals while the 16-bit timer provides precise pulse counting for frequency-output sensors. The 12 I/O pins interface UART or I2C to upstream PLCs or displays. The industrial -40C to +85C temperature range supports factory floor operation, and the TSSOP-14 package withstands vibration in industrial enclosures.
推荐
推荐产品汇总
工程参考数据： PIC16F506-I/ST ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F506T-I/ST | PIC16F505T-I/ST | PIC16F506-E/ST |
|---|---|---|---|---|
| Package | TSSOP-14 (ST) | TSSOP-14 - same | TSSOP-14 - same | TSSOP-14 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 1.5 KB | 1.5 KB | 1 KB (-33%) | 1.5 KB |
| RAM | 67 bytes | 67 bytes | 41 bytes (-39%) | 67 bytes |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 12 | 12 | 12 | 12 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) |
| Packaging Format | Tube | Tape & Reel | Tape & Reel | Tube |
| Supply Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
关键差异点
- Industrial temperature grade at lower cost than extended grade （对比 PIC16F506-E/ST)
- Larger Flash and RAM than PIC16F505 family （对比 PIC16F505T-I/ST)
- Tape-and-reel packaging variant for SMT production （对比 PIC16F506T-I/ST)
设计说明
For TSSOP-14 layout, use 0.65 mm pitch pads with 0.30 mm drill vias and a 0.40 mm wide solder mask opening. Place a 0.1 uF decoupling capacitor as close as possible to pin 1 (VDD) and pin 14 (VSS), with trace length under 5 mm. Add a 10 uF bulk capacitor on VDD if the supply traces exceed 25 mm or connect to multiple ICs. The exposed thermal pad (if present on package variant) should be soldered to a grounded copper pour for thermal stability.
Connect the MCLR pin (pin 4) to VDD through a 10 kohm pull-up resistor for normal operation. For ICSP programming, allow access to MCLR/VPP, ICSPDAT (pin 7), and ICSPCLK (pin 6) via a 3-pin header or test points. Add a 100 nF capacitor from MCLR to ground to filter noise and prevent spurious resets. For brown-out detection, configure the BOREN fuse to enable automatic reset on VDD drop below threshold.
Do not exceed 5.5V on VDD - the PIC16F506 has no internal voltage regulator. The GP3/MCLR pin cannot be used as a normal GPIO without disabling the MCLR function via configuration bit, but doing so eliminates in-circuit programming. When using the internal oscillator, calibrate using the OSCTUNE register to compensate for temperature drift; do not assume factory calibration holds across the entire -40C to +85C range. The 8-bit ADC requires the acquisition time to be set correctly in the ADCON0 register to avoid inaccurate conversions.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications, choose PIC16F15324 or PIC16F18855 which have AEC-Q100 grades. Halogen-free per Microchip environmental compliance documentation.
