
UARTs (Universal Asynchronous Receiver Transmitter)
UARTs (Universal Asynchronous Receiver/Transmitter) interfaces are physical circuits that convert parallel bits from a microcontroller or CPU into serial bits for transmission or convert received serial bits to parallel bits for use by another microcontroller or CPU. UARTs may use RS232, RS422 or RS485 protocols for data transmission and are selected by number of channels, data rate and additional features such as internal oscillators, timer, counter, GPIO and printer ports.
Sourcing Exar (MaxLinear) UARTs (Universal Asynchronous Receiver Transmitter): in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 508
| Product | Pricing | Datasheet | FIFO's | With Auto Flow Control | With IrDA Encoder/Decoder | With False Start Bit Detection | With Modem Control | Data Rate (Max) | Protocol | Features | Mounting Type | Number of Channels | Voltage - Supply | Package / Case | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() ST16C1551CJ28TR-F Exar (MaxLinear) | 16 Byte | - | - | - | Yes | 1.5Mbps | - | - | Surface Mount | - | 2.97V ~ 5.5V | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | 6,616 | ||
![]() ST16C1551IJ28TR-F Exar (MaxLinear) | 16 Byte | - | - | - | Yes | 1.5Mbps | - | - | Surface Mount | - | 2.97V ~ 5.5V | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | 7,827 | ||
![]() ST16C2550IJ44TR-F Exar (MaxLinear) | 16 Byte | - | - | Yes | Yes | 4Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.97V ~ 5.5V | 44-LCC (J-Lead) | 44-PLCC (16.59x16.59) | 9,290 | ||
![]() ST16C450IQ48TR-F Exar (MaxLinear) | 1 Byte | - | - | Yes | Yes | 1.5Mbps | - | Timer/Counter | Surface Mount | 1, UART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 3,967 | ||
![]() ST16C554CQ64TR-F Exar (MaxLinear) | 16 Byte | Yes | - | Yes | Yes | 1.5Mbps | RS232 | Internal Oscillator, Timer/Counter | Surface Mount | 4, QUART | 2.97V ~ 5.5V | 64-LQFP | 64-LQFP (10x10) | 8,966 | ||
![]() ST16C654IJ68TR-F Exar (MaxLinear) | 64 Byte | Yes | Yes | Yes | Yes | 1.5Mbps | RS232 | Internal Oscillator, Timer/Counter | Surface Mount | 4, QUART | 2.97V ~ 5.5V | 68-LCC (J-Lead) | 68-PLCC (24.23x24.23) | 4,928 | ||
![]() XR16L2551IM-F Exar (MaxLinear) | 1 $7.0152 | 16 Byte | Yes | Yes | Yes | Yes | 3.125Mbps | RS232 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.25V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 6,944 | |
![]() XR88C681CJTR-F Exar (MaxLinear) | 1 $7.4247 | 3 Byte | - | - | - | - | 1Mbps | - | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 5V | 44-LCC (J-Lead) | 44-PLCC (16.59x16.59) | 1,126 | |
![]() XR16C2550IM-F Exar (MaxLinear) | 1 $7.5053 | 16 Byte | - | - | Yes | Yes | 4Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 3,249 | |
![]() ST16C650AIQ48-F Exar (MaxLinear) | 1 $7.5360 | 32 Byte | Yes | Yes | Yes | Yes | 3.125Mbps | RS232, RS422, RS485 | Internal Oscillator, Printer Port, Timer/Counter | Surface Mount | 1, UART | 2.9V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 2,868 | |
![]() ST16C2550CJ44TR-F Exar (MaxLinear) | 16 Byte | - | - | Yes | Yes | 4Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.97V ~ 5.5V | 44-LCC (J-Lead) | 44-PLCC (16.59x16.59) | 3,852 | ||
![]() ST16C450CJ44-F Exar (MaxLinear) | 1 Byte | - | - | Yes | Yes | 1.5Mbps | - | Timer/Counter | Surface Mount | 1, UART | 2.97V ~ 5.5V | 44-LCC (J-Lead) | 44-PLCC (16.59x16.59) | 6,049 | ||
![]() ST16C450CJ44TR-F Exar (MaxLinear) | 1 Byte | - | - | Yes | Yes | 1.5Mbps | - | Timer/Counter | Surface Mount | 1, UART | 2.97V ~ 5.5V | 44-LCC (J-Lead) | 44-PLCC (16.59x16.59) | 8,689 | ||
![]() ST16C450CQ48-F Exar (MaxLinear) | 1 Byte | - | - | Yes | Yes | 1.5Mbps | - | Timer/Counter | Surface Mount | 1, UART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 6,297 | ||
![]() ST16C450CQ48TR-F Exar (MaxLinear) | 1 Byte | - | - | Yes | Yes | 1.5Mbps | - | Timer/Counter | Surface Mount | 1, UART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 4,418 | ||
![]() ST16C654IQ100TR-F Exar (MaxLinear) | 64 Byte | Yes | Yes | Yes | Yes | 1.5Mbps | RS232 | Internal Oscillator, Timer/Counter | Surface Mount | 4, QUART | 2.97V ~ 5.5V | 100-BQFP | 100-QFP (14x20) | 9,813 | ||
![]() ST16C654IQ64TR-F Exar (MaxLinear) | 64 Byte | Yes | Yes | Yes | Yes | 1.5Mbps | RS232 | Internal Oscillator, Timer/Counter | Surface Mount | 4, QUART | 2.97V ~ 5.5V | 64-LQFP | 64-LQFP (10x10) | 6,171 | ||
![]() XR16C2850CMTR-F Exar (MaxLinear) | 128 Byte | Yes | Yes | Yes | Yes | 6.25Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 9,414 | ||
![]() XR16C2850IMTR-F Exar (MaxLinear) | 128 Byte | Yes | Yes | Yes | Yes | 6.25Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 2, DUART | 2.97V ~ 5.5V | 48-TQFP | 48-TQFP (7x7) | 9,559 | ||
![]() XR16C854DCVTR-F Exar (MaxLinear) | 128 Byte | Yes | Yes | Yes | Yes | 2Mbps | RS232, RS485 | Internal Oscillator, Timer/Counter | Surface Mount | 4, QUART | 2.97V ~ 5.5V | 64-LQFP | 64-LQFP (10x10) | 9,552 |





