Table of Contents
Advertisement
-
( c )
O I N V
( p i n 3 5 ) , DS ( p i n 34)
---
TTL i n p u t
C o n t r o l i n p u t t e r m i n a l
of RD
o u t p u t .
( d )
i %
( p i n 33)
---
Totempole TTL o u t p u t
Read d a t a p u l s e o u t p u t t e r m i n a l t o t h e c o n t r o l c i r c u i t .
The o u t p u t i s c o n t r o l l e d by
O I N V
and
i n p u t s i g n a l s a s shown i n
Table 203.
I n t h i s FDD, b o t h
of
t h e
O I N V
and
i n p u t s a r e f i x e d
t o
LOW
l e v e l and n e g a t i v e p u l s e s a r e o u t p u t a t t h i s t e r m i n a l .
R e f e r
t o F i g . 204.
( e ) AGND ( p i n 1 6 ) . EGND ( p i n 2 3 ) . and DGND ( p i n 38)
OV p o w e r t e r m i n a l s mainly f o r t h e f o l l o w i n g c i r c u i t s i n t h e LSI.
AGND:
Analog o p e r a t i o n c i r c u i t s such a s p r e - a m p l i f i e r .
EGND: E r a s e d r i v e r .
X N D :
D i g i t a l o p e r a t i o n c i r c u i t s such
as
w r i t e c o n t r o l l o g i c .
(f)
AVGG ( p i n
8 ) ,
DVGG ( p i n 4 1 ) , LVGG ( p i n 37)
+5V p o w e r t e r m i n a l s mainly f o r t h e f o l l o w i n g c i r c u i t s i n t h e LSI.
AVGG: Analog o p e r a t i o n c i r c u i t s such as p r e - a m p l i f i e r .
DVGG: D i g i t a l o p e r a t i o n c i r c u i t s such a s w r i t e c o n t r o l l o g i c .
LVGG: Low v o l t a g e s e n s o r (LVS1)
(9)
EVCC
( p i n 20)
+12V p o w e r t e r m i n a l
f o r
common d r i v e r .
-
222
-
Advertisement
Chapters
Table of Contents
