TL16C752
3.3-V DUAL UART WITH 64-BYTE FIFO
SLLS305 – MAY 1999
Pin Compatible With ST16C2550 With
Additional Enhancements
Supports 3.3-V Operation
Software Selectable Baud Rate Generator
Prescaleable Clock Rates of 1X and 4X
Supports Up to 3.125 Mbps Baud Rate
– Up to 2.1875 Mbps Baud Rate When
Using Crystal (35 MHz Input Clock)
– Up to 3.125 Mbps Baud Rate When Using
Oscillator or Clock Source (50 MHz Input
Clock)
Fast Access Time 2 Clock Cycle IOR/IOW
Pulse Width
Programmable Sleep Mode
Programmable Serial Interface
Characteristics
– 5, 6, 7, or 8Bit Characters
– Even, Odd, or No Parity Bit Generation
and Detection
64-Byte Transmit FIFO
64-Byte Receive FIFO With Error Flags
Programmable and Selectable Transmit and
Receive FIFO Trigger Levels for DMA and
Interrupt Generation
– 1, 1.5, or 2 Stop Bit Generation
False Start Bit Detection
Programmable Receive FIFO Trigger Levels
for Software/Hardware Flow Control
Complete Status Reporting Capabilities in
Both Normal and Sleep Mode
Software/Hardware Flow Control
– Programmable Xon/Xoff Characters
– Programmable Auto-RTS and Auto-CTS
Line Break Generation and Detection
Internal Test and Loopback Capabilities
Fully Prioritized Interrupt System Controls
Software Flow Control Turned Off
Optionally by Any Xon Rx Character
Modem Control Functions (CTS, RTS, DSR,
DTR, RI, and CD)
DMA Signalling Capability for Both
Received and Transmitted Data
PACKAGE
(TOP VIEW)
48 47 46 45 44 43 42 41 40 39 38 37
36
35
34
33
32
31
30
29
28
27
26
25
RESET
DTRB
DTRA
RTSA
OPA
RXRDYA
INTA
INTB
A0
D5
D6
D7
RXB
RXA
1
2
3
4
5
6
7
8
9
TXRDYB
TXA
TXB
OPB
A1
A2
NC
CSA 10
CSB
NC
11
12
13 14 15 16 17 18 19 20 21 22 23 24
NC – No internal connection
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
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