TL16C752B
3.3-V DUAL UART WITH 64-BYTE FIFO
SLLS405A – DECEMBER 1999 – REVISED AUGUST 2000
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Pin Compatible With ST16C2550 With
Additional Enhancements
Up to 1.5 Mbps Baud Rate When Using
Crystal (24 MHz Input Clock)
Up to 3 Mbps Baud Rate When Using
Oscillator or Clock Source (48 MHz Input
Clock)
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
Programmable Receive FIFO Trigger Levels
for Software/Hardware Flow Control
Software/Hardware Flow Control
– Programmable Xon/Xoff Characters
– Programmable Auto-RTS and Auto-CTS
Optional Data Flow Resume by Xon Any
Character
DMA Signalling Capability for Both
Received and Transmitted Data
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Supports 3.3-V Operation
Software Selectable Baud Rate Generator
Prescaler Provides Additional Divide By 4
Function
Fast Access Time 2 Clock Cycle IOR/IOW
Pulse Width
Programmable Sleep Mode
Programmable Serial Interface
Characteristics
– 5, 6, 7, or 8 Bit Characters
– Even, Odd, or No Parity Bit Generation
and Detection
– 1, 1.5, or 2 Stop Bit Generation
False Start Bit Detection
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
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
D4
D3
D2
D1
D0
TXRDYA
VCC
RIA
CDA
DSRA
CTSA
NC
D5
D6
D7
RXB
RXA
TXRDYB
TXA
TXB
OPB
CSA
CSB
NC
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
36
35
34
33
32
31
30
29
28
27
26
25
RESET
DTRB
DTRA
RTSA
OPA
RXRDYA
INTA
INTB
A0
A1
A2
NC
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
©
2000, 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.
XTAL1
XTAL2
IOW
CDB
GND
RXRDYB
IOR
DSRB
RIB
RTSB
CTSB
NC
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
