PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 277

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

8.7.4
Note 80: This section is only applicable to the stand-alone mode.
Note 81: In case the period of signals is stated the time reference will be at 1.4 V;
For pin definition, see "Power Controller Pins", page 36.
8.7.4.1
Figures 115 and 116 depict the timing for read and write operations.
Figure 115
Semiconductor Group
PCRD
PCWR
PCA
PCD
Write Access
in all other cases 0.8 V (low) and 2.0 V (high) thresholds are used as
reference.
Power Controller Interface Timing
Data Port
0...1
0...2
Dynamic Characteristics of Power Controller Write Access
. . .
t
sAD
277
t
wRL
t
Electrical Characteristics
dDW
Data Sheet 01.99
ITD04236
PEB 2091
PEF 2091