ST70135A Datasheet, PDF (27/29 Pages) STMicroelectronics – ASCOTTM DMT TRANSCEIVER

ST70135A
ELECTRICAL SPECIFICATIONS
Generic DC Electrical Characteristics
The values presented in the following table apply for all inputs and/or outputs unless otherwise specified.
Specifically they are not influenced by the choice between CMOS or TTL levels. All voltages are
referenced to V_SS, unless otherwise specified, positive current is towards the device.
IO Buffers Generic DC Characteristics
Symbol
Parameter
I_IN
Input Leakage Current
I_OZ
Tristate Leakage Current
I_PU
Pull up Current
I_PD
Pull Down Current
R_PU
Pull up Resistance
R_PD
Pull Down Resistance
Test Condition
V_IN = V_SS, V_DD no
pull up /pull down
V_IN = V_SS, V_DD no
pull up /pull down
V_IN = V_SS
V_IN = V_DD
V_IN = V_SS
V_IN = V_DD
Minimu m Typical Maximum Unit
-1
1
µA
-1
1
µA
-25
-66
-125
mA
25
66
125
mA
50
KΩ
50
KΩ
Input / Output CMOS Generic Characteristics
The values presented in the following table apply for all CMOS inputs and/or outputs unless otherwise specified.
CMOS IO Buffers Generic Characteristics
Symbol
Parameter
Test Condition Minimum Typical Maximum Unit
V_IL
Low Level Input Voltage
V_IH
High Level Input Voltage
0.8 x V_DD
V_HY
Schmitt trigger hysteresis
Slow edge < 1V/µs,
0.8
only for SCHMITx
V_OL
Low Level Output Voltage
I_OUT = XmA*
V_OH
High Level Output Voltage
I_OUT = XmA*
0.85 x V_DD
0.2 x V_DD
V
V
V
0.4
V
V
*Note The reference current is dependent on the exact buffer chosen and is a part of the buffer name. The available values are 2, 4 and 8mA.
Input/ Output TTL Generic Characteristics
The values presented in the following table apply for all TTL inputs and/or outputs unless otherwise
specified.
Symbol
Parameter
V_IL
V_IH
V_ILHY
V_IHHY
V_HY
V_OL
V_OH
Low Level Input Voltage
High Level Input Voltage
Low Level Threshold, falling
High Level Threshold, rising
Schmitt Trigger Hysteresis
Low Level Output Voltage
High Level Output Voltage
Test Conditio n Minimum Typical Maximum Unit
0.8
V
2.0
V
Slow edge < 1V/µs
0.9
1.35
V
Slow edge < 1V/µs
1.3
Slow edge < 1V/µs
0.4
1.9
V
0.7
V
I_OUT = XmA*
I_OUT = XmA*
2.4
0.4
V
V
*Note The reference current is dependent on the exact buffer chosen and is a part of the buffer name. The available values are 2, 4 and 8mA.
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