DS21448L+ Maxim Integrated Products, DS21448L+ Datasheet - Page 52

• Manufacturer Part Number: DS21448L+
• Description: IC LIU QUAD E1/T1/J1 128-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

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