Overview
The PCA9564D,118 is an integrated circuit designed by NXP Semiconductors, serving as a parallel bus to I²C-bus controller. This device is fabricated using CMOS technology and acts as an interface between standard parallel-bus microcontrollers/microprocessors and the serial I²C-bus. It enables bi-directional communication between the parallel bus system and the I²C-bus, operating as either a master or a slave and supporting both transmitter and receiver functions.
Key Specifications
| Specification | Value |
|---|---|
| Operating Supply Voltage | 2.3 V to 3.6 V |
| I/O Voltage Tolerance | 5 V tolerant |
| I²C-Bus Modes | Standard and fast mode, compatible with SMBus |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, and 1000 V CDM |
| Latch-up Testing | Exceeds 100 mA per JEDEC Standard JESD78 |
| Packages Available | DIP20, SO20, TSSOP20, HVQFN20 |
| Internal Oscillator Frequency | 9 MHz |
Key Features
- Parallel-bus to I²C-bus protocol converter and interface
- Multi-master capability
- Internal oscillator reduces external components
- Supports both master and slave functions on the I²C-bus
- Bidirectional data transfer between the I²C-bus and the parallel-bus microcontroller on a byte-wise basis using interrupt or polled handshake
- Contains four internal registers for configuration and data transfer
Applications
- Add an I²C-bus port to controllers/processors that do not have one
- Add additional I²C-bus ports to controllers/processors that need multiple I²C-bus ports
- Higher frequency, lower voltage migration path for the PCF8584
- Converts 8 bits of parallel data to a serial data stream to prevent running a large number of traces across the entire PC board
Q & A
- What is the primary function of the PCA9564D,118?
The PCA9564D,118 serves as a parallel bus to I²C-bus controller, enabling communication between parallel-bus microcontrollers/microprocessors and the serial I²C-bus.
- What are the operating supply voltage ranges for the PCA9564D,118?
The device operates within a supply voltage range of 2.3 V to 3.6 V.
- Is the PCA9564D,118 compatible with SMBus?
- What types of packages are available for the PCA9564D,118?
The device is available in DIP20, SO20, TSSOP20, and HVQFN20 packages.
- Does the PCA9564D,118 have internal ESD protection?
- How does the PCA9564D,118 handle data transfer between the parallel bus and the I²C-bus?
Data transfer is carried out on a byte-wise basis using either an interrupt or polled handshake.
- What is the frequency of the internal oscillator in the PCA9564D,118?
The internal oscillator frequency is 9 MHz.
- Can the PCA9564D,118 operate as both a master and a slave on the I²C-bus?
- What are some common applications of the PCA9564D,118?
- How many internal registers does the PCA9564D,118 contain?
