 | CH438Q | 4Mbps 3.3V~5V transceiver 4/5 LQFP-44(10x10) RS232 ICs ROHS | WCH | +1 $5.97064 +10 $5.05842 +30 $4.51768 | Min Qty:1 Multiple: 1 | 150 Ship immediately | - | - | - | - |
 | MAX3100EEE+T | IC UART SPI COMPAT 16-QSOP | ADI | +1 $6.60300 +10 $6.35845 +100 $5.77151 +500 $5.47805 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 $3.80318 +10 $3.28790 +30 $2.98233 +100 $2.49701 more | Min Qty:1 Multiple: 1 | 154 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:1 Multiple: 1 | 70 Ship immediately | 2.5V,3.3V | I²C,SPI,UART | SMT | TSSOP28_9.7X4.4MM |
 | CH432T | - | WCH(南京沁恒) | +1 $2.39359 +10 $2.00566 +30 $1.76300 +69 $1.51374 more | Min Qty:1 Multiple: 1 | 328 Ship in 4-7Days | - | - | - | - |