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| 型號(hào)： | CMX208 |
| 英文描述： | ISDN Dual Telephony Protocol Engine?? |
| 中文描述： | 綜合業(yè)務(wù)數(shù)字網(wǎng)電話協(xié)議雙引擎？？ |
| 文件頁(yè)數(shù)： | 24/25頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | CMX208 |
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ISDN Dual Telephony Protocol Engine
CMX208
1999
Consumer Microcircuits Limited
1999
Chiron Technology Limited
24
D/208/1
Read/Write operation (2/2)
Parameter
Symbol
Conditions
V
DD
= +5.0 V ± 10%
Min.
Max.
Units
ns
ns
ns
ns
ns
ns
ns
Data setup time (to WR
↑
)
t
SODW
(1.5 + n) T - 30
(1.5 + n) T - 40
0.5T - 5
0.5T - 25
0.5T - 12
(1.5 + n) T - 30
(1.5 + n) T - 40
Data hold time (to WR
↑
)
Note 1
t
HWOD
V
DD
= +5.0V ± 10%
Delay fromWR
↑
to ASTB
↑
WR low-level width
t
DWST
t
WWL
V
DD
= +5.0V ± 10%
Note 1: Hold time includes the time during which V
OH1
and V
OL1
are held under the load conditions of C
L
= 50 pF and R
L
= 4.7 k
.
Bus Hold timing
Parameter
Symbol
Conditions
Min.
Max.
Units
Delay fromWAITN
↑
to float
Delay fromWAITN
↑
to STN
↑
t
FHQC
t
DHQHHAH
(6 + a + n) T + 50
ns
(7 + a + n) T + 30
ns
(7 + a + n) T + 40
ns
1T + 30
2T + 40
2T + 60
V
DD
= +5.0 V ± 10%
Delay fromfloat to STN
↑
Delay fromWAITN
↑
to STN
↓
t
DCFHA
t
DHQLHAL
ns
ns
ns
ns
ns
V
DD
= +5.0 V ± 10%
Delay fromSTN
↓
to active
t
DHAC
V
DD
= +5.0 V ± 10%
1T - 20
1T - 30
Miscellaneous timing
Parameter
Symbol
Conditions
Min.
nT
0.5 t
CYCL
- 10
0.5 t
CYCL
- 20
0.5 t
CYCL
- 10
0.5 t
CYCL
- 20
Max.
Units
ns
ns
ASTB cycle time
ASTB low-level width
t
CYCL
t
CLL
10
20
10
20
V
DD
= +5.0 V ± 10%
ASTB high-level width
t
CLH
V
DD
= +5.0 V ± 10%
ns
ASTB rise time
t
CLR
V
DD
= +5.0 V ± 10%
ns
ASTB fall time
t
CLF
V
DD
= +5.0 V ± 10%
ns
ns
NMI low-level width
NMI high-level width
t
WNIL
t
WNIH
10
10
μs
μs
RSTN low-level width
RSTN high-level width
t
WRSL
t
WRSH
10
10
μs
μs
Where:
T = t
CYK
(systemclock cycle time)
a = 1 (during address wait), otherwise, 0.
n = Number of wait states (n = 2).
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相關(guān)代理商/技術(shù)參數(shù) |
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| CMX208S1 | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:ISDN Dual Telephony Protocol Engine |
| CMX20T | 制造商:APart 功能描述: |
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| CMX228 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN Protocol Engine? D-Channel Data?? |
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