The TL16C752D-Q1 is a dual universal asynchronous receiver transmitter (UART) with
64-byte FIFOs, automatic hardware and software flow control, and data rates up to 3 Mbps. The
device offers enhanced features. It has a transmission character control register (TCR) that stores
received FIFO threshold level to start or stop transmission during hardware and software flow
control.
With the FIFO RDY register, the software gets the status of TXRDY or RXRDY for all two
ports in one access. On-chip status registers provide the user with error indications, operational
status, and modem interface control. System interrupts may be tailored to meet user requirements.
An internal loop-back capability allows onboard diagnostics. The TL16C752D-Q1 incorporates the
functionality of two UARTs, each UART having its own register set and FIFOs.
The two UARTs share only the data bus interface and clock source, otherwise they operate
independently. Another name for the UART function is asynchronous communications element (ACE), and
these terms are used interchangeably. The bulk of this document describes the behavior of each ACE,
with the understanding that two such devices are incorporated into the TL16C752D-Q1 device.
- Q100 Automotive Qualified
- Pin Compatible With TL16C2550 With Enhanced Features Provided Through an Improved FIFO Register
- Supports Wide Supply Voltage Range of 1.62 V to 5.5 V
- 3 Mbps (48-MHz Oscillator Input Clock) at 5 V
- 2 Mbps (32-MHz Oscillator Input Clock) at 3.3 V
- 1.5 Mbps (24-MHz Oscillator Input Clock) at 2.5 V
- 1 Mbps (16-MHz Oscillator Input Clock) at 1.8 V
- Characterized for Operation from –40°C to 105°C
- 64-Byte Transmit/Receive FIFO
- Software-Selectable Baud-Rate Generator
- Programmable and Selectable Transmit and Receive FIFO Trigger Levels for DMA, Interrupt Generation, and Software or Hardware Flow Control
- Software/Hardware Flow Control
- Programmable Xon and Xoff Characters With Optional Xon Any Character
- Programmable Auto-RTS and Auto-CTS-Modem Control Functions (CTS, RTS, DSR, DTR, RI, and CD)
- DMA Signaling Capability for Both Received and Transmitted Data on PN Package
- RS-485 Mode Support
- Infrared Data Association (IrDA) Capability
- Programmable Sleep Mode
- Programmable Serial Interface Characteristics
- 5, 6, 7, or 8-Bit Characters With 1, 1.5, or 2 Stop Bit Generation
- Even, Odd, or No Parity Bit Generation and Detection
- False Start Bit and Line Break Detection
- Internal Test and Loopback Capabilities
- SC16C752B and XR16M752 Pin Compatible With Additional Enhancements
| Number of channels | 2 |
| FIFO (Byte) | 64 |
| Rx FIFO trigger levels (#) | 16 |
| Tx FIFO trigger levels (#) | 16 |
| Programmable FIFO trigger levels | Yes |
| CPU interface | X86 |
| Baud rate at Vcc = 2.5 V & with 16x sampling (max) (MBits) | 1.5 |
| Baud rate at Vcc = 1.8 V & with 16x sampling (max) (MBits) | 1 |
| Baud rate at Vcc = 3.3 V & with 16x sampling (max) (MBits) | 2 |
| Baud rate at Vcc = 5 V & with 16x sampling (max) (MBits) | 3 |
| Operating voltage (V) | 1.62 to 5.5 |
| Auto RTS/CTS | Yes |
| Rating | Automotive |
| Operating temperature range (°C) | -40 to 105 |