WEIKAI WK2132-ISSG

WK2132 is the first 2-channel universal asynchronous transceiver featuring 256-level FIFO and supporting UART/SPI/IIC bus interfaces. The chip can be configured via mode selection to operate in any of the above host interface modes, expanding the selected host interface into 2 enhanced UART channels. Each sub-channel supports independent configuration of baud rate, word length, and parity format, with a maximum communication rate of 2Mbps. Each sub-channel can be independently configured for IrDA infrared communication, and features dedicated 256-level TX/RX FIFOs with programmable interrupt trigger levels and timeout interrupt support. The device is available in an SSOP16 lead-free package, operates over a supply voltage range of 2.50 ~ 5.00V, and supports configurable auto-sleep and wake-up functionality.

• Supports UART, SPI, IIC host interfaces
• 256-level hardware TX/RX FIFO
• Low-power design with configurable auto-sleep and auto-wake modes (microsecond-level wake-up)
• Wide operating voltage range: 2.50 ~ 5.00V
• Simplified configuration registers and control words for easy and reliable operation
• Industrial-grade products available
• High-speed CMOS process; sub-UART baud rate up to 2Mbps@5V, 1.5Mbps@3.3V, 1Mbps@2.5V
• RoHS-compliant lead-free SSOP16 package
• Independently configurable sub-channel UARTs for high flexibility
• Each sub-UART is full-duplex, software-enabled or disabled
• Independently configurable baud rates; sub-UART maximum rate up to 2Mbps
• Independently configurable character format per sub-UART (data length, stop bits, parity mode)
• Comprehensive sub-UART status query functionality
• Software reset support for individual sub-UARTs
• Independent 256-level TX FIFO per sub-UART with programmable trigger level
• Independent 256-level RX FIFO per sub-UART with programmable trigger level
• Software-controlled FIFO enable and flush
• FIFO status and counter output
• Parity error, framing error, overflow error, and line break error detection
• Start bit error detection
• Built-in SIR-compliant IrDA infrared TX/RX codec, transfer rate up to 115.2Kbit/s
• Sub-UART RX FIFO timeout interrupt
• Line break error interrupt support
• Host interface: standard 3-wire UART (RX, TX, GND)
• Auto baud rate detection, up to 2Mbit/s
• Odd parity, even parity, and no parity modes
• Multi-UART expansion via on-chip protocol processor, no address line control required
• UART host interface configurable to infrared mode via pin setting
• Supports up to 16-byte continuous TX/RX
• SPI host interface up to 10Mbit/s, slave mode only, SPI mode 0, supports up to 256-byte continuous TX/RX
• IIC host interface up to 1Mbit/s, slave mode only, supports up to 256-byte continuous TX/RX

• Multi-port serial server / multi-port serial card
• Industrial/automation RS-485 field control
• Wireless data transmission via 2G/3G/4G
• Telematics platform / in-vehicle GPS positioning system
• Remote automatic meter reading system