SN28846

SERIAL DRIVER

SOCS024B – FEBRUARY 1991

6

POST OFFICE BOX 655303

PARAMETER

SELECT

MODE ‡

TEST CONDITIONS

MIN

TYP

MAX

UNIT

0

24

tPLH

Propagation delay time,

1

t

= 140 ns

f=3 6MHz

33

ns

tPLH

gy

low-to-high-level output

2

tw = 140 ns,

f = 3.6 MHz

39

ns

3

47

0

24

tPHL

Propagation delay time,

1

t

= 140 ns

f=3 6MHz

23

ns

tPHL

gy

high-to-low-level output

2

tw = 140 ns,

f = 3.6 MHz

22

ns

3

22

∆tPLH

(see Note 7)

Any

TA =20°Cto55°C

20

ns

∆tPHL

(see Note 7)

Any

TA = – 20°C to 55°C

20

ns

tw

Pulse duration

100

140

180

tr

Rise time

Any

tw = 140 ns,

f = 3.6 MHz

17

ns

tf

Fall time

10

† The load is a Texas Instruments CCD image sensor.

‡ The select mode is determined by the voltage levels applied to SEL1 and SEL0 as follows:

SELECT MODE

SEL1

SEL0

0VSS

VSS

1VSS

VCC

2VCC

VSS

3VCC

VCC

NOTE 7:

∆tPLHand∆tPHLarethechangesintPLHandtPHL,respectively,whenthedeviceisoperatedoverthetemperaturerange–20°Cto55°C

rather than at 25

°C.