DS2148T+ Maxim Integrated Products, DS2148T+ Datasheet - Page 61

• Manufacturer Part Number: DS2148T+
• Description: IC LIU E1/T1/J1 5V 44-TQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS2148T+

• Number Of Drivers/receivers: 1/1
• Protocol: T1/E1/J1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10 AC CHARACTERISTICS
Table 10-1. AC Characteristics—Multiplexed Parallel Port
(BIS1 = 0, 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
DD
= 5.0V ±5%, T
PARAMETER
A
= -40°C to +85°C.) (See
SYMBOL
PW
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
ASED
R
RWH
DHW
t
DSW
CYC
RWS
t
DHR
AHL
DDR
ASD
ASL
CH
CS
, t
ASH
EH
EL
F
MIN
200
100
100
61 of 73
Figure
10
50
20
10
15
10
20
30
10
20
50
0
0
10-1,
TYP
Figure
MAX
10-2, and
20
50
80
UNITS
Figure
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10-3.)
NOTES