SC28L91A1B,557

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P43

Philips Semiconductors Product data sheet

SC28L91

3.3 V or 5.0 V Universal Asynchronous

Receiver/Transmitter (UART)

2004 Oct 21

37

t

TXD

t

TCS

1 BIT TIME

(1 OR 16 CLOCKS)

TxD

TxC

(INPUT)

TxC

(1X OUTPUT)

SD00138

Figure 12. Transmitter External Clocks

t

RXS

t

RXH

RxC

(1X INPUT)

RxD

SD00139

Figure 13. Receiver External Clock

TRANSMITTER

ENABLED

TxD D1 D2 D3 D4 D6BREAK

TxRDY

(SR2)

WRN

D1 D8 D9 D10 D12START

BREAK

STOP

BREAK

D11 WILL

NOT BE

WRITTEN TO

THE TxFIFO

CTSN

1

(IP0)

RTSN

2

(OP0)

OPR(0) = 1 OPR(0) = 1

NOTES:

1. Timing shown for MR2[4] = 1.

2. Timing shown for MR2[5] = 1.

SD00155

Figure 14. Transmitter Timing

Philips Semiconductors Product data sheet

SC28L91

3.3 V or 5.0 V Universal Asynchronous

Receiver/Transmitter (UART)

2004 Oct 21

38

D1 D2 D8 D9 D10 D11 D12 D13

RxD

D12, D13 WILL BE LOST

DUE TO RECEIVER DISABLE.

RECEIVER

ENABLED

RxRDY

(SR0)

FFULL

(SR1)

RxRDY/

FFULL

(OP5)

2

RDN

STATUS DATA

D1

STATUS DATA

D2

STATUS DATA

D3

STATUS DATA

D10

D11 WILL BE LOST

DUE TO OVERRUN

OVERRUN

(SR4) RESET BY COMMAND

RTS

1

(OP0)

OPR[0] = 1

NOTES:

1. Timing shown for MR1[7] = 1.

2. Shown for OPCR[4] = 1 and MR[6] = 0.

SD00156

Figure 15. Receiver Timing

TRANSMITTER

ENABLED

TxD

ADD#1

TxRDY

(SR2)

WRN

MR1[4:3] = 11

MR1[2] = 1

1

BIT 9

D0 0

BIT 9

ADD#2 1

BIT 9

MASTER STATION

ADD#1 MR1[2] = 0 D0 MR1[2] = 1 ADD#2

RxD

ADD#1 1

BIT 9

D0 0

BIT 9

ADD#2 1

BIT 9

PERIPHERAL STATION

0

BIT 9

0

BIT 9

RECEIVER

ENABLED

RxRDY

(SR0)

RDN/WRN

MR1[4:3] = 11

ADD#1

STATUS DATA

D0

STATUS DATA

ADD#2

SD00096

Figure 16. Wake-Up Mode

Philips Semiconductors Product data sheet

SC28L91

3.3 V or 5.0 V Universal Asynchronous

Receiver/Transmitter (UART)

2004 Oct 21

39

INTRN

DACKN

D0–D7

TxDA/B

OP0–OP7

125pF

+5V

I = 2.4mA

125pF

I = 2.4mA V

OL

return to V

CC

for a 0 level

I = 400µA V

OH

return to V

SS

for a 1 level

SD00690

Figure 17. Test Conditions on Outputs

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P43

SC28L91A1B,557

Mfr. #:

Buy SC28L91A1B,557

Manufacturer:

NXP Semiconductors

Description:

UART Interface IC 3V-5V 1CH UART INTEL/MOT INTRF

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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