PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 253

• Manufacturer Part Number: PEB2085
• Description: ISDN SubscribernAccess Controller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 94
Non-Multiplexed Address Timing
Microprocessor Interface Timing
Parameter
ALE pulse width
Address setup time to ALE
Address hold time from ALE
Address latch setup time to WR, RD
Address setup time
Address hold time
ALE guard time
DS delay after RW setup
RD pulse width
Data output delay from RD
Data float from RD
RD control interval
W pulse width
Data setup time to W CS
Data hold time from W CS
W control interval
Semiconductor Group
CS x DS
AD0
- AD5
t
AS
253
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AA
AL
LA
ALS
AS
AH
AD
DSD
RR
RD
DF
RI
WW
DW
WD
WI
Electrical Characteristics
t
min.
50
15
10
0
25
10
15
0
110
70
60
35
10
70
AH
Limit Values
max.
110
25
ITT00718
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns