 | CH438Q | 4Mbps 3.3V~5V transceiver 4/5 LQFP-44(10x10) RS232 ICs ROHS | WCH | +1 $3.71460 +10 $3.14789 +30 $2.81097 | Min Qty:1 Multiple: 1 | 90 Ship immediately | - | - | - | - |
 | MAX3100EEE+T | IC UART SPI COMPAT 16-QSOP | ADI | +1 $6.41049 +10 $6.17306 +100 $5.60324 +500 $5.31833 more | Min Qty:1 Multiple: 1 | 10 Ship immediately | - | - | - | - |
 | WK2124-ISSG | SPI interface four channel universal asynchronous transceiver lead-free packaging | 成都为开 | +1 $3.39600 +10 $2.93644 +30 $2.66295 | Min Qty:1 Multiple: 1 | 62 Ship immediately | 2.5V~5V | SPI | SMT | SSOP20_208MIL |
 | SC16IS752IPW,128 | Dual UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support TSSOP28_9.7X4.4MM | NXP | | Min Qty:5 Multiple: 5 | 100 Ship immediately | 2.5V,3.3V | I²C,SPI,UART | SMT | TSSOP28_9.7X4.4MM |
 | CH432T | - | WCH(南京沁恒) | +1 $2.54259 +10 $2.13250 +30 $1.87596 +69 $1.58345 more | Min Qty:1 Multiple: 1 | 19 Ship in 3-5Days | - | - | - | - |