Overview
The PCA9698DGG,518 is a 40-bit parallel input/output (I/O) port expansion device designed for I²C-bus applications, manufactured by NXP USA Inc. This device is part of the Fast-mode Plus (Fm+) family, offering enhanced performance with higher frequency operation up to 1 MHz and support for longer, more densely populated bus lines. The PCA9698 is organized into 5 banks of 8 I/Os, providing flexible configuration options for various applications.
Key Specifications
| Specification | Value |
|---|---|
| Number of I/O Ports | 40 |
| Supply Voltage | Up to 5 V |
| Output Current Capability | Sourcing: 10 mA, Sinking: 25 mA |
| Total Package Load | Up to 1 A |
| I²C-Bus Frequency | Up to 1 MHz (Fast-mode Plus) |
| Package Type | TSSOP56 |
| Operating Temperature Range | -40 °C to +85 °C |
| Interrupt Output | Open-drain interrupt output pin (INT) |
| Output Enable Pin | 3-states any I/O selected as output (OE) |
Key Features
- 40-bit parallel input/output port expansion organized in 5 banks of 8 I/Os.
- Each I/O port can be configured as an input or output.
- Output ports can be programmed as totem-pole or open-drain.
- Logic states can change at either the Acknowledge (bank change) or the Stop Command (global change).
- Input ports can be masked to prevent generating interrupts when their state changes.
- I/O data logic state can be inverted when read by the system master.
- GPIO All Call command allows programming multiple Advanced GPIOs simultaneously.
- SMBus Alert feature for wired-AND signal and SMBus Alert Response Address.
- Internal Power-On Reset (POR) or hardware reset pin (RESET) initializes the 40 I/Os as inputs.
Applications
- Industrial automation and control systems.
- Automotive systems requiring extensive I/O expansion.
- Consumer electronics needing flexible I/O configurations.
- LED lighting and display systems where direct driving of LEDs is necessary.
- Any system requiring high-density I/O expansion with advanced I²C-bus features.
Q & A
- What is the PCA9698DGG,518 used for?
The PCA9698DGG,518 is used for 40-bit parallel input/output port expansion in I²C-bus applications. - How many I/O ports does the PCA9698DGG,518 have?
The device has 40 I/O ports organized in 5 banks of 8 I/Os each. - What is the maximum supply voltage for the PCA9698DGG,518?
The maximum supply voltage is up to 5 V. - What is the output current capability of the PCA9698DGG,518?
The outputs can source 10 mA and sink 25 mA, with a total package load of up to 1 A. - What is the operating temperature range of the PCA9698DGG,518?
The operating temperature range is -40 °C to +85 °C. - Can the output ports be configured as totem-pole or open-drain?
Yes, the output ports can be programmed as either totem-pole or open-drain. - What is the purpose of the GPIO All Call command?
The GPIO All Call command allows programming multiple Advanced GPIOs simultaneously, even if they have different I²C-bus addresses. - How does the SMBus Alert feature work?
The SMBus Alert feature allows the SMBALERT pins of multiple devices to be connected together to form a wired-AND signal and to be used in conjunction with the SMBus Alert Response Address. - What initializes the 40 I/Os as inputs at power-up or reset?
The internal Power-On Reset (POR) or the hardware reset pin (RESET) initializes the 40 I/Os as inputs. - Can the I/O data logic state be inverted when read by the system master?
Yes, the I/O data logic state can be inverted when read by the system master.
