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DS2155 Datasheet(PDF) 249 Page - Dallas Semiconductor

Part # DS2155
Description  T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
PDF  262 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS2155 Datasheet(HTML) 249 Page - Dallas Semiconductor

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DS2156
249 of 262
36.
AC TIMING PARAMETERS AND DIAGRAMS
Capacitive test loads are 40pF for bus signals, 20pF for all others.
36.1 Multiplexed Bus AC Characteristics
AC CHARACTERISTICS: MULTIPLEXED PARALLEL PORT (MUX = 1)
(Figure 36-1, Figure 36-2, and Figure 36-3)
(VDD = 3.3V
±5%, TA = 0°C to +70°C for DS2156L; VDD = 3.3V ±5%, TA = -40°C to +85°C for DS2156LN.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Cycle Time
tCYC
200
ns
Pulse Width, DS Low or RD High
PWEL
100
ns
Pulse Width, DS High or RD Low
PWEH
100
ns
Input Rise/Fall Times
tR, tF
20
ns
R/W Hold Time
tRWH
10
ns
R/W Setup Time Before DS High
tRWS
50
ns
CS Setup Time Before DS, WR, or RD
Active
tCS
20
ns
CS Hold Time
tCH
0
ns
Read Data Hold Time
tDHR
10
50
ns
Write Data Hold Time
tDHW
0
ns
Muxed Address Valid to AS or ALE Fall
tASL
15
ns
Muxed Address Hold Time
tAHL
10
ns
Delay Time DS, WR, or RD to AS or ALE
Rise
tASD
20
ns
Pulse Width AS or ALE High
PWASH
30
ns
Delay Time, AS or ALE to DS, WR or RD
tASED
10
ns
Output Data Delay Time from DS or RD
tDDR
20
80
ns
Data Setup Time
tDSW
50
ns



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