NXP Semiconductors PCA9506
the PCA9506 except that it includes 100 kΩ internal pull-up resistors on all the I/Os. The PCA9506 does not include the internal pullups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver. The device can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to have the I/O data logic state to be inverted when read by the system controller.| Part No. | PCA9506 |
|---|---|
| Datasheet | PCA9506 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 40-bit I2C-bus I/O port |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● Standard mode (100 kHz) and Fast mode (400 kHz) compatible I2C-bus serial interface● 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
● 40 configurable I/O pins that default to inputs at power-up
● PCA9505 includes 100 kΩ internal pull-up resistors on all the I/Os
● Outputs: – Totem-pole (10 mA source, 15 mA sink) with controlled edge rate output structure – Active LOW output enable (OE) input pin 3-states all outputs – Output state change on Acknowledge – Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins programmed as inputs NXP Semiconductors PCA9505_9506 40-bit I2C-bus I/O port with RESET, OE and INT
● Inputs: – Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change – Polarity Inversion register allows inversion of the polarity of the I/O pins when read
● Active LOW reset (RESET) input pin resets device to power-up default state
● 3 programmable address pins...
