82P2821BH IDT, Integrated Device Technology Inc, 82P2821BH Datasheet - Page 142

• Manufacturer Part Number: 82P2821BH
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2821BH

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

8.13.4 PARALLEL MOTOROLA MULTIPLEXED MICROPROCESSOR INTERFACE
8.13.4.1Read Cycle Specification
Physical And Electrical Specifications
IDT82P2821
Symbol
t
t
t
t
t
t
t
t
t
RSW
RWV
RWH
ASW
CSD
PRD
VAS
VAH
ZRD
Valid AS signal width
Valid read signal width
Valid DS + CS falling edge delay after AS
R/ W available time after valid DS + CS signal falling edge
R/ W hold time after valid DS + CS signal falling edge
Valid address to AS setup time
Valid address to AS hold time
Data propagation delay after valid DS + CS signal falling edge
Valid read negated to output High-Z before valid AS rising
edge
Figure-65 Parallel Motorola Multiplexed Microprocessor Interface Read Cycle
DS + CS
D[7:0]
R/W
ACK
AS
Parameter
t
ASW
t
VAS
Valid address
t
CSD
t
VAH
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
142
41 (T1/J1) / 38 (E1) or wait until ACK activated
t
PRD
t
RWV
t
RWH
t
RSW
36 (T1/J1) / 33 (E1)
Min
5
0
0
5
5
5
Valid Data
t
ZRD
36 (T1/J1) / 33 (E1)
MAX
February 6, 2009
20
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns