ACS8520T Semtech, ACS8520T Datasheet - Page 135

• Manufacturer Part Number: ACS8520T
• Description: Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
• Manufacturer: Semtech

Table 35 DC Characteristics: TTL Input Port with Internal Pull-up
Table 36 DC Characteristics: TTL Input Port with Internal Pull-down
Table 37 DC Characteristics: TTL Output Port
Table 38 DC Characteristics: PECL Input/Output Port
Revision 3.02/October 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Across all operating conditions, unless otherwise stated
V
V
Pull-up Resistor
Input Current
Across all operating conditions, unless otherwise stated
V
V
Pull-down Resistor
Input Current
Across all operating conditions, unless otherwise stated
V
V
Drive Current
Across all operating conditions, unless otherwise stated
PECL Input Low Voltage
Differential Inputs (Note ii)
PECL Input High Voltage
Differential Inputs (Note ii)
Input Differential Voltage
PECL Input Low Voltage
Single-ended Input (Note iii)
IN
IN
IN
IN
OUT
OUT
High
Low
High
Low
Low (l
High (l
OL
OH
= 4mA)
= 4mA)
Parameter
Parameter
Parameter
Parameter
V
Symbol
Symbol
Symbol
Symbol
V
V
V
ILPECL_S
IHPECL
IDPECL
ILPECL
V
V
V
V
PU
V
V
PD
I
I
I
IN
IN
OH
OL
IH
IH
D
IL
IL
FINAL
Page 135
Minimum
Minimum
Minimum
Minimum
V
V
V
DD
DD
DD
2.4
0.1
25
25
2
2
0
-
-
-
-
-
-2.5
-2.4
-2.4
Typical
Typical
Typical
Typical
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Maximum
Maximum
Maximum
Maximum
ACS8520 SETS
V
V
V
DD
DD
DD
120
120
0.8
0.8
0.4
1.4
90
90
4
-
-
-
-0.5
-0.4
-1.5
DATASHEET
www.semtech.com
Units
Units
Units
Units
kΩ
µΑ
kΩ
mA
µA
V
V
V
V
V
V
V
V
V
V