Philips Semiconductors

Product specification

SCN2652/SCN68652

Multi-protocol communications controller (MPCC)

1995 May 01

17

PARAMETER

2MHz CLOCK

UNIT

PARAMETER

Min

Typ

Max

UNIT

Set-up and hold time

Address/control set-up

50

Address/control hold

0

Data bus set-up (write)

50

ns

Data bus hold (write)

0

Receiver serial data set-up

150

Receiver serial data hold

150

Pulse width

RESET

250

ns

DBEN

250

Delay Time

Data bus (read)

170

ns

Transmit serial data

250

ns

DBEN to DBEN delay

200

Data bus float time (read)

150

ns

f

Clock (RxC, TxC) frequency

2.0

MHz

Clock high (MM = 0)

165

Clock high (MM = 1)

240

ns

Clock low

240

NOTES:

1. Parameters are valid over operating temperature range unless otherwise specified. See ordering code table for applicable temperature

range and operating supply range.

2. All voltage measurements are referenced to ground. All time measurements are at 0.8V or 2.0V. Input voltage levels for testing are 0.4V and

2.4V.

TIMING DIAGRAMS

RESET

tRES

RESET

RESET AND WRITE DATA BUS

tDBEN

tACS

DBEN

tACH

tACS

tACH

CE, R/W,

BYTE

tDF

tDD

FLOATING

VALID

VALID

FLOATING

NOT

D0–D15

(READ)

tDS

tDH

D0–D15

(WRITE)

SD00065

Figure 10. Timing Diagrams