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PCA9535CPW

16-bit I2C I/O expander, TSSOP-24

11980

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جزء الشركة المصنعة ： جزء الشركة المصنعة

PCA9535CPW

الحزمة ： الحزمة

TSSOP-24

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
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الوصف

نظرة عامة على المنتج

The PCA9535CPW from NXP is a 16-bit I2C-bus I/O expander with interrupt output in TSSOP-24 for adding GPIO ports to microcontrollers.

المواصفات الرئيسية

الحزمة TSSOP-24

الميزات

  • See datasheet for complete specifications
  • Industry-standard package

التطبيقات

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics

The PCA9535CPW from NXP is a 16-bit I2C-bus I/O expander with interrupt output in TSSOP-24 for adding GPIO ports to microcontrollers.

The PCA9535CPW is a 16-bit I2C I/O expander from NXP in TSSOP-24, providing 16 general-purpose I/O pins controlled via I2C (400kHz Fast-mode). The device has 8 internal registers: Input Port (read pin state), Output Port (set pin output level), Polarity Inversion (invert input polarity), Configuration (set direction: 0=output, 1=input). Each register is 8 bits, with separate registers for Port 0 and Port 1. The I2C base address is 0x20 (7-bit), with A0-A2 pins selecting one of 8 addresses (0x20-0x27), allowing 8 devices (128 I/O pins) on a single I2C bus. The I/O pins can sink 25mA (LED driving) and source 10mA. The interrupt output (INT#) asserts LOW when any input pin changes state from its previous read value, enabling interrupt-driven input scanning instead of polling. The interrupt is cleared by reading the Input Port register. The PCA9535 differs from the PCA9555 in that it has weaker pull-up resistors (100k vs 50k on PCA9555) and no internal pull-ups on I/O pins configured as inputs. The -CPW suffix specifies TSSOP-24, commercial temperature (0C to +70C). The PCA9535 is one of the most popular I2C I/O expanders, used in: LED matrix control, button/keyboard scanning, and adding extra GPIO to microcontrollers.

دبوس الاسم النوع الوظيفة
1-8 I/O0.0-I/O0.7 الإدخال/الإخراج Port 0 (8-bit, push-pull or open-drain, 25mA sink, 10mA source)
9 A0 المدخلات Address bit 0 (connect to VDD or GND for I2C address selection)
10 A1 المدخلات Address bit 1
11 A2 المدخلات Address bit 2 (3 bits = 8 devices on same I2C bus)
12-19 I/O1.0-I/O1.7 الإدخال/الإخراج Port 1 (8-bit, same capabilities as Port 0)
20 INT# المخرجات Interrupt output (active LOW, asserts on input change, open-drain)
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics
    • الشركة المصنعة رقم الجزء الحزمة الملاحظات
    NXP PCA9535CPW TSSOP-24 Same device, NXP brand
    NXP PCAL9535APW TSSOP-24 Enhanced version with latch, programmable output drive
    تكساس إنسترومنتس TCA9535PWR TSSOP-24 Pin-compatible, TI brand
    الرقاقة الدقيقة MCP23017-E/SP SPDIP-28 16-bit I2C I/O expander, Microchip brand
    NXP PCA9555PW TSSOP-24 16-bit I2C I/O with interrupt, NXP brand
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    Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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