Philips Semiconductors

Product specification

SC26C562

CMOS dual universal serial communications controller

(CDUSCC)

1998 Sep 04

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.

LIMITS

SYMBOL

PARAMETER

INDUSTRIAL SC26C562

COMMERCIAL SC26C562

UNIT

Min

Max

Min

Max

TxC input low (1X) to TxD output

120

120

ns

TxC input low (16X) to TxD output

120

120

ns

(NRZ, NRZI)

25

20

ns

FM, MAN

35

30

ns

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

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.

LIMITS

SYMBOL

PARAMETER

INDUSTRIAL SC26C562

COMMERCIAL SC26C562

UNIT

Min

Max

Min

Max

RxD data valid to RxC high:

For NRZ data

25

20

ns

For NRZI, Manchester, FM0, FM1 data

30

30

ns

RxC high to RxD data invalid:

For NRZ data

25

20

ns

For NRZI, Manchester, FM0, FM1 data

30

30

ns

SYNIN low to RxC high

50

50

ns

RxC high to SYNIN high

20

20

ns

RxC high to SYNOUT low

110

100

ns