The TL16C552A, TL16C552AM is a dual asynchronous communications element with FIFO function from Texas Instruments, which can operate at a clock rate of 16Mhz and support a transmission speed of 1Mbaud. The product has the following features: IBM PC/AT compatible, two TL16C550 ACEs, enhanced bidirectional printer port, 16-byte FIFO, reduced CPU interrupts, independently controlled transmit, receive, line status and data set interrupts for each channel, individual modem control signals for each channel, programmable serial interface characteristics for each channel, 5-, 6-, 7- or 8-bit characters, even, odd or no parity bit generation and detection, 1-, 1-1/2- or 2 stop bit generation, TTL drive for the I/O and control bus for each channel, hardware and software compatible with TL16C452
The TL16C552A and TL16C552AM are enhanced dual-channel versions of the popular TL16C550B asynchronous communications element (ACE). These devices serve two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems, performing serial-to-parallel conversion on received data and parallel-to-serial conversion on transmitted data. The complete status of each channel can be read at any time during functional operation by the CPU, including transfer operation conditions and error states.
| Clock Rate | Up to 16-MHz |
|---|---|
| FIFO Size | 16-Byte |
| Package Types | 68-pin FN, 48-pin PN, 80-pin PN, 68-pin HV |
| Character Formats | 5-, 6-, 7-, or 8-Bit |
| Stop Bits | 1-, 1-1/2-, or 2-Stop Bit |
The TL16C552A is an enhanced dual-channel version of the popular TL16C550B asynchronous communications element (ACE).
The TL16C552A is available in a 68-pin plastic-leaded chip-carrier (FN) package, a 48-pin TQFP (PN) package, and the 80-pin TQFP (PN) package.
The device supports up to a 16-MHz clock rate for up to 1-Mbaud operation.