DS21448-LW Maxim Integrated Products, DS21448-LW Datasheet - Page 49

• Manufacturer Part Number: DS21448-LW
• Description: Network Controller & Processor ICs 3.3V Quad E1-T1-J1 L ine Interface T1-E1-
• Manufacturer: Maxim Integrated Products

Specifications of DS21448-LW

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.
Table 10-A. AC Characteristics—Multiplexed Parallel Port (BIS0 = 0)
(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
Figure 10-1. Intel Bus Read Timing (PBTS = 0, BIS0 = 0)
DD
= 3.3V ±5%, T
AD0–AD7
AC TIMING PARAMETERS AND DIAGRAMS
WR
ALE
RD
CS
PARAMETER
A
t ASD
= -40°C to +85°C.)
PW
t
t ASD
EL
ASL
PW
(Figure
ASH
10-1,
SYMBOL
PW
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
ASED
R
RWH
DHW
RWS
t
t
DSW
CYC
DHR
ASD
DDR
ASL
AHL
CS
CH
, t
49 of 60
t
Figure
ASH
EH
t
EL
CS
F
t
AHL
ASED
10-2, and
t CYC
CONDITIONS
t DDR
Figure
PW
EH
10-3)
MIN
200
100
100
10
50
20
10
15
10
20
30
10
20
50
0
5
t
TYP
CH
t
DHR
MAX
20
50
80
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns