D765 查看數據表（PDF） - NEC => Renesas Technology
零件编号
产品描述 (功能)
比赛名单
D765 Datasheet PDF : 17 Pages
| |||
uPD765AIuPD7656
AC Characteristics
= -10 to
=V
Parameter
Symbol Min Typ
Clock period
120 125
240 250
Clock active
40
(high, low)
Clock rise
time
Clock fall
time
-
-
DACK
0
setup time to RO
-
-
CS, DACK
0
hold time from
width
200
Data access
from
DB to float delay
10
time from
-
-
CS. OACK
AW
0
setup time to WR I
OACK
0
hold time
width
200
Data setup time to
100
Max Unit Conditions
500
CLK
ns
CLK
20
20 ns
ns
140
85 ns
= 100
ns
ns
ns
Data hold time from
0
ns
time from
INT delay time from
ns Non-DMA
+
+ 135
mode
+ 135
cycle time
13
ns (Note 4)
DACK
delav
140 ns
DRQ DACK
delay
200
ns
ns (Note 4)
DACK width
AA
ns
+ 15
TC width
1
Reset width
14
DRQ INT
response time
60
77
only
INT DACK
1
ineffective
Parameter
WCLK cycle time
Symbol
WCLK active time
CLK
delay
WCLK
WCLK. RDATA and
WINDOW time
WCLK,
and
WINDOW fall time
Preshift
time
from WCLK
WCLK
delav
RDATA
time
Window cycle time
Window hold time
from RDATA
Window setup time
to RDATA
setup time
to SEEK
SEEK setup time
to DIR
Direction setup time
to step
hold time
from step t
Step active time
(high)
Step cycle time
Fault reset
time (high)
Write data width
hold time
after seek
SEEK hold time
from DIR
DIR hold time
after step
Index pulse
Min Typ Max
16
8
250 350
Conditions
MFM = 0
MFM = 1
ns Note 4
0
ns
only
20 ns
20 ns
20
ns
20
100 ns
20
100 ns
40
ns
2
1
15
MFM=O
ns
15
ns
12
CLK
Notes 4, 5
7
5.0
678
33 Note 2Note 2
8.0
10
Notes 4.5
15
CLK
Notes 3.4.
5
30
CLK
Notes 4, 5
24
4
Share Link: 