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A.c. characteristics, Ht93lc66 – Rainbow Electronics HT93LC66 User Manual

Page 3

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A.C. Characteristics

Symbol

Parameter

V

CC

=5V±10%

V

CC

=3V±10%

V

CC

=2V*

Unit

Min.

Max.

Min.

Max.

Min.

Max.

f

SK

Clock Frequency

0

2000

0

500

0

250

kHz

t

SKH

SK High Time

250

¾

1000

¾

2000

¾

ns

t

SKL

SK Low Time

250

¾

1000

¾

2000

¾

ns

t

CSS

CS Setup Time

50

¾

200

¾

200

¾

ns

t

CSH

CS Hold Time

0

¾

0

¾

0

¾

ns

t

CDS

CS Deselect Time

250

¾

250

¾

1000

¾

ns

t

DIS

DI Setup Time

100

¾

200

¾

400

¾

ns

t

DIH

DI Hold Time

100

¾

200

¾

400

¾

ns

t

PD1

DO Delay to ²1²

¾

250

¾

1000

¾

2000

ns

t

PD0

DO Delay to ²0²

¾

250

¾

1000

¾

2000

ns

t

SV

Status Valid Time

¾

250

¾

250

¾

¾

ns

t

HV

DO Disable Time

100

¾

400

¾

400

¾

ns

t

PR

Write Cycle Time

¾

5

¾

5

¾

¾

ms

* For Read Operating Only

A.C. test conditions
Input rise and fall time: 5ns (1V to 2V)
Input and output timing reference levels: 1.5V
Output load circuit: See Figure right

HT93LC66

Rev. 1.20

3

October 29, 2001

D O

8 0 0 W

1 0 0 p F *

V C C = 1 . 9 5 2 V

* l n c l u d i n g s c o p e a n d j i g

C S

S K

D O

D I

t

C D S

t

C S S

t

C S H

t

S K L

t

S K H

t

D I S

t

D I H

t

P D 1

t

P D 0

H i - Z

V a l i d D a t a

V a l i d D a t a