PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 272

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Semiconductor Group
Figure 110
8.7.1.3
C
Parameter
ALE pulse width
Address setup time to ALE
Address hold time from ALE
Address latch setup time to WR, RD
Address setup time to WR, RD
Address hold time from WR, RD
ALE pulse delay
DS delay after R/W setup
R/W hold time after DS
RD pulse width
Data output delay from RD
Data float from RD
RD control interval
WR pulse width
Data setup time to WR x CS
Data hold time from WR x CS
WR control interval
Load
= 50pF
CS x DS
AD0
- AD5
Timing Values of the µP interface in Parallel Mode
Motorola Non-Multiplexed Address Timing
t
AS
272
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AA
AL
LA
ALS
AS
AH
AD
DSD
RWD
RR
RD
DF
RI
WW
DW
WD
WI
t
AH
Electrical Characteristics
min.
50
15
10
0
25
0
10
0
0
110
70
60
35
10
70
Data Sheet 01.99
ITT00718
max. unit
110
25
PEB 2091
PEF 2091
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns