454
Table 17.4
AC Characteristics (V
CC
= 6.0 V ± 0.25 V, V
PP
= 12.5 ± 0.3 V, V
SS
= 0 V,
Ta = 25 ± 5˚C)
Item
Symbol
Min
Typ
Max
Unit
Test
Conditions
Address setup time
t
AS
2
—
—
µs
Figure 17.5
*
1
OE
setup time
t
OES
2
—
—
µs
Data setup time
t
DS
2
—
—
µs
Address hold time
t
AH
0
—
—
µs
Data hold time
t
DH
2
—
—
µs
Data output disable time
t
DF
*
2
—
—
130
ns
V
PP
setup time
t
VPS
2
—
—
µs
PGM
pulse width in initial programming
t
PW
0.19
0.20
0.21
ms
PGM
pulse width in overprogramming
t
OPW
*
3
0.19
—
5.25
ms
V
CC
setup time
t
VCS
2
—
—
µs
CE
setup time
t
CES
2
—
—
µs
Data output delay time
t
OE
0
—
150
ns
Notes:
*
1 Input pulse level: 0.45–2.4 V
Input rise, fall time
≤
20 ns
Input timing reference levels: 0.8 V, 2.0 V
Output timing reference levels: 0.8 V, 2.0 V
*
2 t
DF
is defined at the point where the output is in the open state and the output level
cannot be referenced.
*
3 t
OPW
is defined by the value given in the flowchart.
Summary of Contents for HD6417032
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Page 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
Page 578: ...543 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 62 Self Refresh ...
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