TL16C752B
3.3-V DUAL UART WITH 64-BYTE FIFO
SLLS405 – DECEMBER 1999
Pin Compatible With ST16C2550 With
Additional Enhancements
Supports 3.3-V Operation
Software Selectable Baud Rate Generator
Up to 1.5 Mbps Baud Rate When Using
Crystal (24 MHz Input Clock)
Prescaler Provides Additional Divide By 4
Function
Up to 2.25 Mbps Baud Rate When Using
Oscillator or Clock Source (36 MHz Input
Clock)
Fast Access Time 2 Clock Cycle IOR/IOW
Pulse Width
Programmable Sleep Mode
64-Byte Transmit FIFO
Programmable Serial Interface
Characteristics
64-Byte Receive FIFO With Error Flags
Programmable and Selectable Transmit and
Receive FIFO Trigger Levels for DMA and
Interrupt Generation
– 5, 6, 7, or 8 Bit Characters
– Even, Odd, or No Parity Bit Generation
and Detection
– 1, 1.5, or 2 Stop Bit Generation
Programmable Receive FIFO Trigger Levels
for Software/Hardware Flow Control
False Start Bit Detection
Software/Hardware Flow Control
– Programmable Xon/Xoff Characters
– Programmable Auto-RTS and Auto-CTS
Complete Status Reporting Capabilities in
Both Normal and Sleep Mode
Line Break Generation and Detection
Internal Test and Loopback Capabilities
Fully Prioritized Interrupt System Controls
Optional Data Flow Resume by Xon Any
Character
DMA Signalling Capability for Both
Received and Transmitted Data
Modem Control Functions (CTS, RTS, DSR,
DTR, RI, and CD)
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.
Copyright 1999, Texas Instruments Incorporated
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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265