PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 250

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

XTAL1 Clock Characteristics (external oscillator input)
Parameter
Duty cycle
AC Characteristics
T
Inputs are driven to 2.4 V for a logical "1" and to 0.4 V for a logical "0". Timing measurements
are made at 2.0 V for a logical "1" and 0.8 V for a logical "0". The AC testing input/output
waveforms are shown in figure 87.
Figure 87
Input/Output Waveform for AC Tests
Semiconductor Group
A
= 0 to 70 °C, V
0.45
2.4
2.0
0.8
DD
= 5 V 5%
Test Points
2.0
0.8
250
Limit Values
min.
1:2
Device
Under
Test
Electrical Characteristics
max.
2:1
C
Load
= 150
ITS00621
pF