Overview
The PCA9698DGG,512 is a 40-bit Fast-mode Plus (Fm+) I²C-bus advanced I/O port produced by NXP USA Inc. This device provides significant expansion of I/O ports for I²C-bus applications, organized into 5 banks of 8 I/Os each. It is designed to operate within a supply voltage range of 2.3 V to 5.5 V, making it versatile for various applications. The PCA9698 is notable for its high-frequency operation up to 1 MHz and its ability to support longer, more densely populated bus operations.
Key Specifications
| Attribute | Specification |
|---|---|
| Interface Type | I²C |
| Clock Frequency - Max | 1 MHz |
| No of I/O Lines | 40 |
| Supply Voltage - Nom | 2.3 V to 5.5 V |
| Supply Current | 500 mA |
| Package Style | TSSOP-56 |
| Mounting Method | Surface Mount |
| Operating Temperature | -40°C to 85°C |
| Output Type | Open Drain |
| Output Current - Source/Sink | 10 mA / 25 mA |
Key Features
- 40-bit parallel input/output (I/O) port expansion for I²C-bus applications, organized in 5 banks of 8 I/Os.
- Operates at frequencies up to 1 MHz and supports longer, more densely populated bus operations.
- Each I/O port can be configured as an input or output.
- Output ports can be programmed to be totem-pole or open-drain.
- Internal power-on reset (POR) and hardware reset pin (RESET).
- Noise filter on SDA/SCL inputs and edge rate control on outputs.
- No output glitches on power-up and supports hot insertion.
- Low standby current and 5.5 V tolerant inputs.
- Open-drain interrupt output pin (INT) for monitoring input pins.
- Output Enable pin (OE) for 3-stating any I/O selected as output.
- SMBus Alert feature for wired-AND signal formation.
- GPIO All Call command for programming multiple Advanced GPIOs simultaneously.
Applications
- LED status information and LED displays.
- LCD backlights and keypad backlights for cellular phones or handheld devices.
- General-purpose I/O expansion in various embedded systems.
- Industrial control systems and automation.
- Consumer electronics requiring multiple I/O ports.
Q & A
- What is the PCA9698DGG,512 used for?
The PCA9698DGG,512 is used for 40-bit parallel input/output (I/O) port expansion for I²C-bus applications.
- What is the maximum clock frequency of the PCA9698DGG,512?
The maximum clock frequency is 1 MHz.
- How many I/O lines does the PCA9698DGG,512 have?
The device has 40 I/O lines, organized into 5 banks of 8 I/Os each.
- What is the supply voltage range of the PCA9698DGG,512?
The supply voltage range is 2.3 V to 5.5 V.
- What type of package does the PCA9698DGG,512 come in?
The device comes in a TSSOP-56 package.
- Does the PCA9698DGG,512 support hot insertion?
Yes, the device supports hot insertion.
- What is the purpose of the Output Enable (OE) pin?
The Output Enable (OE) pin 3-states any I/O selected as output and can be used as an input signal to blink or dim LEDs.
- Can the PCA9698DGG,512 be used in LCD backlight applications?
Yes, it can be used in LCD backlight applications.
- Does the PCA9698DGG,512 have an internal power-on reset (POR)?
Yes, the device has an internal power-on reset (POR) and a hardware reset pin (RESET).
- What is the SMBus Alert feature in the PCA9698DGG,512?
The SMBus Alert feature allows the SMBALERT pins of multiple devices to be connected together to form a wired-AND signal.
