PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 247

• Manufacturer Part Number: PEF2054
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Capacitances
Parameter
Input capacitance
Output capacitance
I/O
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 at 0.8 V for a logical “0”.
The AC-testing input/output wave forms are shown below.
Figure 89
I/O-Wave Form for AC-Test
AC Characteristics
Ambient temperature under bias range,
Semiconductor Group
2.4 V
0.4 V
2.0 V
0.8 V
Test Points
V
Symbol
C
C
C
DD
IN
OUT
I/O
247
2.0 V
0.8 V
= 5 V
5 %.
min.
Limit Values
Electrical Characteristics
Device
Test
Under
max.
10
15
20
C
PEB 2055
PEF 2055
L
= 150 pF
ITS05853
Unit
pF
pF
pF