SC28L92A1A NXP Semiconductors, SC28L92A1A Datasheet - Page 73

UART, DUAL, 3.3V OR 5V, SMD, 28L92

SC28L92A1A

Manufacturer Part Number
SC28L92A1A
Description
UART, DUAL, 3.3V OR 5V, SMD, 28L92
Manufacturer
NXP Semiconductors
Datasheet

Specifications of SC28L92A1A

No. Of Channels
2
Supply Voltage Range
2.97V To 3.63V, 4.5V To 5.5V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
PLCC
No. Of Pins
44
Svhc
No SVHC (18-Jun-2010)
Operating
RoHS Compliant
Data Rate
230.4Kilobaud
Uart Features
Programmable Channel Mode, Line Break Detection & Generation
Rohs Compliant
Yes

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NXP Semiconductors
19. Contents
1
2
3
4
5
5.1
5.2
6
6.1
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.2.10
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10
7
7.1
7.2
7.3
7.3.1
7.3.1.1
7.3.1.2
7.3.1.3
7.3.1.4
7.3.1.5
7.3.1.6
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pinning information . . . . . . . . . . . . . . . . . . . . . . 6
Functional description . . . . . . . . . . . . . . . . . . 13
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 9
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . 13
Data bus buffer . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation control . . . . . . . . . . . . . . . . . . . . . . 13
Interrupt control . . . . . . . . . . . . . . . . . . . . . . . 13
FIFO configuration . . . . . . . . . . . . . . . . . . . . . 14
68xxx mode . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Timing circuits. . . . . . . . . . . . . . . . . . . . . . . . . 14
Crystal clock . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Baud rate generator . . . . . . . . . . . . . . . . . . . . 15
Counter/timer . . . . . . . . . . . . . . . . . . . . . . . . . 15
Timer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Counter mode . . . . . . . . . . . . . . . . . . . . . . . . . 16
Time-out mode . . . . . . . . . . . . . . . . . . . . . . . . 16
Time-out mode caution . . . . . . . . . . . . . . . . . . 17
Communications channels A and B . . . . . . . . 17
Input port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Output port . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Transmitter reset and disable . . . . . . . . . . . . . 19
Receiver FIFO . . . . . . . . . . . . . . . . . . . . . . . . 20
Receiver status bits . . . . . . . . . . . . . . . . . . . . 20
Receiver reset and disable . . . . . . . . . . . . . . . 20
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Receiver time-out mode . . . . . . . . . . . . . . . . . 21
Time-out mode caution . . . . . . . . . . . . . . . . . . 22
Multi-drop mode (9-bit or wake-up). . . . . . . . . 22
Register overview . . . . . . . . . . . . . . . . . . . . . . 22
Condensed register bit formats. . . . . . . . . . . . 24
Register descriptions . . . . . . . . . . . . . . . . . . . 26
Mode registers . . . . . . . . . . . . . . . . . . . . . . . . 26
Mode Register 0 channel A (MR0A) . . . . . . . . 26
Mode Register 1 channel A (MR1A) . . . . . . . . 28
Mode Register 2 channel A (MR2A) . . . . . . . . 29
Mode Register 0 channel B (MR0B) . . . . . . . . 32
Mode Register 1 channel B (MR1B) . . . . . . . . 32
Mode Register 2 channel B (MR2B) . . . . . . . . 32
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
7.3.2
7.3.2.1
7.3.2.2
7.3.3
7.3.3.1
7.3.3.2
7.3.4
7.3.4.1
7.3.4.2
7.3.5
7.3.6
7.3.7
7.3.8
7.3.9
7.3.10
7.3.11
7.3.12
7.3.13
7.3.14
7.4
7.5
8
9
10
11
12
13
14
14.1
14.2
14.3
14.4
15
16
17
17.1
17.2
17.3
17.4
18
19
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2007.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 50
Static characteristics . . . . . . . . . . . . . . . . . . . 51
Dynamic characteristics . . . . . . . . . . . . . . . . . 54
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . 58
Test information. . . . . . . . . . . . . . . . . . . . . . . . 64
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 65
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 70
Revision history . . . . . . . . . . . . . . . . . . . . . . . 71
Legal information . . . . . . . . . . . . . . . . . . . . . . 72
Contact information . . . . . . . . . . . . . . . . . . . . 72
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Clock select registers . . . . . . . . . . . . . . . . . . . 33
Clock Select Register channel A (CSRA). . . . 33
Clock Select Register channel B (CSRB). . . . 34
Command registers . . . . . . . . . . . . . . . . . . . . 35
Command Register channel A (CRA) . . . . . . 35
Command Register channel B (CRB) . . . . . . 36
Status registers . . . . . . . . . . . . . . . . . . . . . . . 37
Status Register channel A (SRA). . . . . . . . . . 37
Status Register channel B (SRB). . . . . . . . . . 39
Output Configuration Control Register
(OPCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Set Output Port bits Register (SOPR) . . . . . . 41
Reset Output Port bits Register (ROPR) . . . . 42
Output Port Register (OPR) . . . . . . . . . . . . . . 43
Auxiliary Control Register (ACR) . . . . . . . . . . 44
Input Port Change Register (IPCR) . . . . . . . . 45
Interrupt Status Register (ISR). . . . . . . . . . . . 45
Interrupt Mask Register (IMR) . . . . . . . . . . . . 47
Interrupt Vector Register (IVR; 68xxx mode)
or General Purpose register
(GP; 80xxx mode) . . . . . . . . . . . . . . . . . . . . . 48
Counter/timer registers. . . . . . . . . . . . . . . . . . 48
Output port notes . . . . . . . . . . . . . . . . . . . . . . 49
The CTS, RTS, CTS enable Tx signals . . . . . 49
Introduction to soldering. . . . . . . . . . . . . . . . . 68
Wave and reflow soldering . . . . . . . . . . . . . . . 68
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 68
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 69
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 72
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Date of release: 19 December 2007
Document identifier: SC28L92_7
SC28L92
All rights reserved.

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