CMX228S1 MX-COM, Inc., CMX228S1 Datasheet - Page 32

• Manufacturer Part Number: CMX228S1
• Description: ISDN data and telephony protocol engine with x.25
• Manufacturer: MX-COM, Inc.

ISDN Data and Telephony Protocol Engine with x.25
6.1.3.2.2
Note:
1. Hold time includes the time during which V
6.1.3.2.3
Where: T =
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and R
Data setup time (to WR
Data hold time (to WR
Delay from WR
WR low-level width
a =
n =
L
Read/Write operation (2/2)
Miscellaneous timing
= 4.7k .
ASTB cycle time
ASTB low-level width
ASTB high-level width
ASTB rise time
ASTB fall time
NMI low-level width
NMI high-level width
RST low-level width
RST high-level width
Parameter
t
1 (during address wait), otherwise, 0.
Number of wait states (n = 2).
Parameter
CYK
(system clock cycle time)
to ASTB
)
Note 1
)
t
t
t
t
t
t
t
t
t
CYCL
CLL
CLH
CLR
CLF
WNIL
WNIH
WRSL
WRSH
Symbol
t
t
t
t
Symbol
SODW
HWOD
DWST
WWL
V
V
V
V
OH1
DD
DD
DD
DD
Conditions
V
V
V
= +5.0 V ± 10%
= +5.0 V ± 10%
= +5.0 V ± 10%
= +5.0 V ± 10%
DD
DD
DD
and V
Conditions
= +5.0 V ± 10%
= +5.0V ± 10%
= +5.0V ± 10%
32
OL1
are held under the load conditions of C
nT
0.5 t
0.5 t
0.5 t
0.5 t
10
10
10
10
(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
CYCL
CYCL
CYCL
CYCL
Min.
- 10
- 20
- 10
- 20
Min.
2000 Chiron Technology Limited
10
20
10
20
Max.
CMX228 Advance Information
Max.
Units
Doc. # 20480216.001
µ s
µ s
µ s
µ s
ns
ns
ns
ns
ns
ns
ns
ns
ns
2000 MX-COM, Inc.
Units
ns
ns
ns
ns
ns
ns
ns
L
= 50pF