1 Features
1. SC16C752B and XR16M752 Pin Compatible With
Additional Enhancements
. Support 1.8-V, 2.5-V, 3.3-V, or 5-V Supply
. Characterized for Operation from .40°C to 85°C
. Supports up to:
. 48-MHz Oscillator Input Clock (3 Mbps) for 5-V
Operation
. 32-MHz Oscillator Input Clock (2 Mbps) for
3.3-V Operation
. 24-MHz Input Clock (1.5 Mbps) for 2.5-V
Operation
. 16-MHz Input Clock (1 Mbps) for 1.8-V
Operation
. 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-CTSModem
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

3 Description
The TL16C752C 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.