Philips Semiconductors

Product data sheet

SC26C562

CMOS dual universal serial communications controller

(CDUSCC)

2006 Aug 10

13

AC ELECTRICAL CHARACTERISTICS (Continued)

1 BIT TIME

(1 OR 16 CLOCKS)

tCILTXV

tCOLTXV

TxC

(INPUT)

TxD

TxC

(1X OUTPUT)

tCILTXV

tCOLTXV

TxC

(INPUT)

TxD

TxC

(1X OUTPUT)

tCILTXV

tCOLTXV

a. Transmit Timing NRZ

b. Transmit Timing FM0/1, Manchester Encoding

SD00244

Figure 10.

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

Min

Max

UNIT

TxC input LOW (1X) to TxD output

–

120

ns

TxC input LOW (16X) to TxD output

–

120

ns

–

20

ns

FM, MAN

–

30

ns

*Characterized with no loads on TxD and TxC outputs. Tester load is approximately 50 pF.

tRCHSOL

tSILRCH

tRCHSIH

tRXVRCH

tRCHRXI

SYNOUTN

SYNIN

RXC (1X)

INPUT

RxD

tRXVRCH

RXC

(INPUT)

RxD

tRCHRXI

tRCHRXI

tRXVRCH

a. Receive Timing NRZ

b. Receive Timing FM0/1, Manchester Encoding

SD00245

Figure 11.

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

Min

Max

UNIT

RxD data valid to RxC HIGH:

For NRZ data

20

–

ns

For NRZI, Manchester, FM0, FM1 data

30

–

ns

RxC HIGH to RxD data invalid:

For NRZ data

20

–

ns

For NRZI, Manchester, FM0, FM1 data

30

–

ns

SYNIN LOW to RxC HIGH

50

–

ns

RxC HIGH to SYNIN HIGH

20

–

ns

RxC HIGH to SYNOUT LOW

–

100

ns