 | CH438Q | 4Mbps 3.3V~5V transceiver 4/5 LQFP-44(10x10) RS232 ICs ROHS | WCH | +1 $4.01939 +10 $3.40586 +30 $3.04073 | Min Qty:1 Multiple: 1 | 150 Ship immediately | - | - | - | - |
 | MAX3100EEE+T | IC UART SPI COMPAT 16-QSOP | ADI | +1 $6.59647 +10 $6.35216 +100 $5.76581 +500 $5.47263 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 $3.82635 +10 $3.30111 +30 $2.98985 | Min Qty:1 Multiple: 1 | 38 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 | +1 $3.83383 +10 $3.32505 +30 $3.02277 | 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 $2.39122 +10 $2.00368 +30 $1.76126 +69 $1.51224 more | Min Qty:1 Multiple: 1 | 319 Ship in 3-6Days | - | - | - | - |