SC68C652BIB48 NXP Semiconductors, SC68C652BIB48 Datasheet - Page 43

• Manufacturer Part Number: SC68C652BIB48
• Manufacturer: NXP Semiconductors

Specifications of SC68C652BIB48

• Transmitter And Receiver Fifo Counter: Yes
• Data Rate: 5Mbps
• Package Type: LQFP
• Operating Supply Voltage (max): 5.5V
• Mounting: Surface Mount
• Pin Count: 48
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
17. Contents
1
2
3
4
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
7
7.1
7.2
7.2.1
7.2.2
7.3
7.3.1
7.3.1.1
7.3.1.2
7.3.2
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
8
9
10
10.1
11
12
12.1
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 8
Register descriptions . . . . . . . . . . . . . . . . . . . 15
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 28
Static characteristics. . . . . . . . . . . . . . . . . . . . 29
Dynamic characteristics . . . . . . . . . . . . . . . . . 30
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 37
Soldering of SMD packages . . . . . . . . . . . . . . 38
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
UART A-B functions . . . . . . . . . . . . . . . . . . . . . 8
Internal registers. . . . . . . . . . . . . . . . . . . . . . . . 9
FIFO operation . . . . . . . . . . . . . . . . . . . . . . . . . 9
Hardware flow control . . . . . . . . . . . . . . . . . . . 10
Software flow control . . . . . . . . . . . . . . . . . . . 10
Special feature software flow control . . . . . . . 11
Hardware/software and time-out interrupts. . . 11
Programmable baud rate generator . . . . . . . . 12
DMA operation . . . . . . . . . . . . . . . . . . . . . . . . 13
Loopback mode . . . . . . . . . . . . . . . . . . . . . . . 13
Transmit Holding Register (THR) and
Receive Holding Register (RHR) . . . . . . . . . . 16
Interrupt Enable Register (IER) . . . . . . . . . . . 16
IER versus Transmit/Receive FIFO interrupt
mode operation. . . . . . . . . . . . . . . . . . . . . . . . 17
IER versus Receive/Transmit FIFO polled
mode operation. . . . . . . . . . . . . . . . . . . . . . . . 18
FIFO Control Register (FCR) . . . . . . . . . . . . . 18
DMA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mode 0 (FCR bit 3 = 0) . . . . . . . . . . . . . . . . . . 18
Mode 1 (FCR bit 3 = 1) . . . . . . . . . . . . . . . . . . 18
FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Interrupt Status Register (ISR) . . . . . . . . . . . . 21
Line Control Register (LCR) . . . . . . . . . . . . . . 22
Modem Control Register (MCR) . . . . . . . . . . . 23
Line Status Register (LSR) . . . . . . . . . . . . . . . 24
Modem Status Register (MSR). . . . . . . . . . . . 25
Scratchpad Register (SPR) . . . . . . . . . . . . . . 25
Enhanced Feature Register (EFR) . . . . . . . . . 26
SC68C652B external reset condition . . . . . . . 27
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . 31
Introduction to soldering . . . . . . . . . . . . . . . . . 38
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
12.2
12.3
12.4
13
14
15
15.1
15.2
15.3
15.4
16
17
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. 2009.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 40
Revision history . . . . . . . . . . . . . . . . . . . . . . . 41
Legal information . . . . . . . . . . . . . . . . . . . . . . 42
Contact information . . . . . . . . . . . . . . . . . . . . 42
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Wave and reflow soldering . . . . . . . . . . . . . . . 38
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 38
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 39
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 42
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 42
SC68C652B
Document identifier: SC68C652B_2
Date of release: 2 November 2009
All rights reserved.