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參數(shù)資料
| 型號： | SAA5700GP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 圖文 |
| 英文描述： | Chinese Character System Teletext CCST decoder |
| 中文描述： | TELETEXT DECODER, PQFP64 |
| 封裝： | 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, SOT-319-2, QFP-64 |
| 文件頁數(shù)： | 15/24頁 |
| 文件大小： | 139K |
| 代理商： | SAA5700GP |
1997 May 16
15
Philips Semiconductors
Preliminary specification
Chinese Character System Teletext
(CCST) decoder
SAA5700
DRAM Interface timing
(see note 1 and Fig.4)
Note
1.
Based on a display clock frequency of 24 MHz, maximum 24 MHz + 500 ppm.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
T
cy(RAS)
t
pch(RAS)
t
h(CAS)
t
d(RAS-CAS)
t
WL(CAS)
T
cy(CAS)
t
pch(CAS)
t
h(CAS-RAS)
t
pch(CAS-RAS)
t
su(RA)
t
h(RA)
t
su(CA)
t
h(CA)
t
su(R)
t
h(R)(CAS)
t
h(R)(RAS)
t
su(W)
t
h(W)
t
su(i)(D)
t
h(i)(D)
t
ACC(R)(CAS)
t
ACC(R)(RAS)
RAS cycle time
RAS precharge time
CAS hold time
RAS to CAS delay time
CAS pulse width LOW
CAS page mode cycle time
CAS precharge time
RAS hold time after CAS
CAS to RAS precharge time
row address set-up time
row address hold time
column address set-up time
column address hold time
read command set-up time
read command hold time from (CAS)
read command hold time from (RAS)
write command set-up time
write command hold time
data input set-up time
data input hold time
read access time from (CAS)
read access time from (RAS)
60
80
20
20
50
10
20
10
0
10
0
15
0
0
10
0
15
0
15
375
20
80
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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