ds2156gn Maxim Integrated Products, Inc., ds2156gn Datasheet - Page 250

• Manufacturer Part Number: ds2156gn
• Description: Ds2156, Ds2156l, Ds2156ln T1/e1/j1 Single-chip Transceiver Tdm/utopia Ii Interface
• Manufacturer: Maxim Integrated Products, Inc.

36.
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)
(V
Cycle Time
Pulse Width, DS Low or RD High
Pulse Width, DS High or RD Low
Input Rise/Fall Times
R/W Hold Time
R/W Setup Time Before DS High
CS Setup Time Before DS, WR, or RD
Active
CS Hold Time
Read Data Hold Time
Write Data Hold Time
Muxed Address Valid to AS or ALE Fall
Muxed Address Hold Time
Delay Time DS, WR, or RD to AS or ALE
Rise
Pulse Width AS or ALE High
Delay Time, AS or ALE to DS, WR or RD
Output Data Delay Time from DS or RD
Data Setup Time
DD
= 3.3V ±5%, T
AC TIMING PARAMETERS AND DIAGRAMS
PARAMETER
A
= 0°C to +70°C for DS2156L; V
SYMBOL
PW
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
ASED
R
RWH
t
DHW
RWS
t
DHR
DDR
DSW
CYC
AHL
ASD
ASL
CH
, t
CS
ASH
DD
250 of 265
EH
EL
F
= 3.3V ±5%, T
CONDITIONS
A
= -40°C to +85°C for DS2156LN.)
MIN
200
100
100
10
50
20
10
15
10
20
30
10
20
50
0
0
TYP
MAX
20
50
80
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns