SC16C754B datasheet(6/51 Pages) NXP

Part #	SC16C754B

Description	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs

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Manufacturer	NXP [NXP Semiconductors]

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SC16C754B_4

Product data sheet

Rev. 04 — 6 October 2008

6 of 51

NXP Semiconductors

SC16C754B

5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs

5.2 Pin description

Fig 4.

Pin conﬁguration for PLCC68

SC16C754BIA68

DSRA

DSRD

CTSA

CTSD

DTRA

DTRD

VCC

GND

RTSA

RTSD

INTA

INTD

CSA

CSD

TXA

TXD

IOW

IOR

TXB

TXC

CSB

INTB

RTSB

GND

DTRB

CTSB

DSRB

CSC

INTC

RTSC

VCC

DTRC

CTSC

DSRC

002aaa868

10

11

12

13

14

15

16

17

18

19

20

60

59

58

57

56

55

54

53

52

51

50

21

22

23

24

25

26

49

48

47

46

45

44

Table 2.

Pin description

Symbol

Type

Description

LQFP64 LQFP80 PLCC68

A0

24

30

34

I

Address 0 select bit. Internal registers address selection.

A1

23

29

33

I

Address 1 select bit. Internal registers address selection.

A2

22

28

32

I

Address 2 select bit. Internal registers address selection.

CDA64

79

9

I

Carrier Detect (active LOW). These inputs are associated with

individual UART channels A through D. A logic LOW on these pins

indicates that a carrier has been detected by the modem for that channel.

The state of these inputs is reﬂected in the Modem Status Register

(MSR).

CDB

18

23

27

CDC

31

39

43

CDD

49

63

61

CLKSEL

-

26

30

I

Clock Select. CLKSEL selects the divide-by-1 or divide-by-4 prescalable

clock. During the reset, a logic 1 (VCC) on CLKSEL selects the

divide-by-1 prescaler. A logic 0 (GND) on CLKSEL selects the divide-by-4

prescaler. The value of CLKSEL is latched into MCR[7] at the trailing

edge of RESET. A logic 1 (VCC) on CLKSEL will latch a logic 0 into

MCR[7]. A logic 0 (GND) on CLKSEL will latch a logic 1 into MCR[7].

MCR[7] can be changed after RESET to alter the prescaler value. This

pin is associated with LQFP80 and PLCC68 packages only. This pin is

connected to VCC internally on LQFP64 package.

Similar Part No. - SC16C754B

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	SC16C754B	259Kb / 50P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs Rev. 02-13 June 2005
	SC16C754BIA68	259Kb / 50P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs Rev. 02-13 June 2005
	SC16C754BIB80	259Kb / 50P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs Rev. 02-13 June 2005
	SC16C754BIBM	259Kb / 50P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs Rev. 02-13 June 2005

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Similar Description - SC16C754B

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	SC16C754B	259Kb / 50P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs Rev. 02-13 June 2005
	SC16C752B	225Kb / 47P	5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs Rev. 03-14 December 2004
	SC16C752B	226Kb / 47P	5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs Rev. 05-2 October 2008
	SC16C554B	253Kb / 51P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs Rev. 01-9 February 2005
	SC16C554BIB80-T	1Mb / 58P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs Rev. 4-8 June 2010
	SC16C554B	1Mb / 58P	5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs Rev. 4-8 June 2010
	SC16C2550B	211Kb / 43P	5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs Rev. 04-15 February 2007
	SC16C2552B	188Kb / 38P	5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs Rev. 03-12 February 2009
	SC16C2550B	221Kb / 43P	5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs Rev. 05-12 January 2009
	SC16C752B	1,019Kb / 47P	5 V, 2.2 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs Rev. 6-30 November 2010

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