DS21448L+ Maxim Integrated Products, DS21448L+ Datasheet - Page 50

• 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 10-2. Intel Bus Write Timing (PBTS = 0, BIS0 = 0)
Figure 10-3. Motorola Bus Timing (PBTS = 1, BIS0 = 0)
AD0–AD7
AD0–AD7
AD0–AD7
(WRITE)
(READ)
ALE
CS
WR
CS
RD
R/W
AS
DS
t ASD
PW EL
t ASD
t ASD
PW
t
t
ASL
t ASL
EL
ASL
PW
PW
t
AHL
t
ASH
AHL
ASH
t RWS
t ASED
t
t
AHL
50 of 60
t
CS
ASED
t CS
t CYC
t
DDR
t CYC
t
DSW
PW
EH
t
DSW
PW EH
t CH
t
CH
t
t
DHW
DHR
t
RWH
t
DHW