DS21448L+ Maxim Integrated Products, DS21448L+ Datasheet - Page 52
![IC LIU QUAD E1/T1/J1 128-LQFP](/photos/6/82/68247/128-lqfp_21-0086d_sml.jpg)
DS21448L+
Manufacturer Part Number
DS21448L+
Description
IC LIU QUAD E1/T1/J1 128-LQFP
Manufacturer
Maxim Integrated Products
Type
Line Interface Units (LIUs)r
Datasheet
1.DS21448L.pdf
(60 pages)
Specifications of DS21448L+
Number Of Drivers/receivers
4/4
Protocol
T1/E1/J1
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
128-TQFP, 128-VQFP
Product
Framer
Number Of Transceivers
4
Supply Voltage (max)
3.465 V
Supply Voltage (min)
3.135 V
Supply Current (max)
400 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 10-5. Intel Bus Write Timing (PBTS = 0, BIS0 = 1)
Figure 10-6. Motorola Bus Read Timing (PBTS = 1, BIS0 = 1)
Figure 10-7. Motorola Bus Write Timing (PBTS = 1, BIS0 = 1)
A0–A4
D0–D7
A0–A4
D0–D7
A0–A4
D0–D7
R/W
WR
R/W
RD
CS
CS
DS
CS
DS
0ns (MIN)
0ns (MIN)
0ns (MIN)
t1
t1
t1
0ns (MIN)
0ns (MIN)
0ns (MIN)
t2
t2
t2
75ns (MAX)
ADDRESS VALID
ADDRESS VALID
ADDRESS VALID
t3
52 of 60
75ns (MIN)
75ns (MIN)
t6
t6
5ns (MIN) / 20ns (MAX)
10ns
(MIN)
10ns
(MIN)
t7
DATA VALID
t7
t8
t4
10ns
(MIN)
t4
t4
t8
10ns
(MIN)
0ns (MIN)
0ns (MIN)
0ns (MIN)
t5