參數(shù)資料
型號: DS21Q43ATN
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 57/60頁
文件大?。?/td> 748K
代理商: DS21Q43ATN
DS21Q43A
57 of 60
TRANSMIT SYSTEM SIDE AC TIMING
Figure 12-9
NOTES:
1.
TSER is only sampled on the falling edge of TSYSCLK when the transmit side elastic store is
enabled.
2.
TCHCLK and TCHBLK are synchronous with TSYSCLK when the transmit side elastic store is
enabled.
AC CHARACTERISTICS -
NON-MULTIPLEXED PARALLEL
(0
°
C to 70
°
C; V
DD
=5V
±
10% for DS21Q43AT;
PORT (MUX=0)
-40
°
C to +85
°
C; V
DD
=5V
±
10% for DS21Q43ATN)
PARAMETER
SYMBOL
Set Up Time for A0 to A6, FS0, FS1
Valid to
CS
Active
Set Up Time for
CS
Active to either
RD
,
WR
, or DS Active
Delay Time from either
RD
or DS
Active to Data Valid
Hold Time from either
RD
,
WR
, or DS
Inactive to
CS
Inactive
Hold Time from
CS
Inactive to Data
Bus 3-State
Wait Time from either
WR
or DS
Active to Latch Data
Data Set Up Time to either
WR
or DS
Inactive
Data Hold Time from either
WR
or DS
Inactive
Address Hold Time
t
9
See Figures 13-10 to 13-13 for details.
MIN
0
TYP
MAX
UNITS
ns
NOTES
t
1
t
2
0
ns
t
3
75
ns
t
4
0
ns
t
5
5
20
ns
t
6
75
ns
t
7
10
ns
t
8
10
ns
10
ns
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