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參數(shù)資料
| 型號： | T7688 |
| 廠商： | Lineage Power |
| 英文描述： | 5.0 V E1/CEPT Quad Line Interface(5.0 V E1/CEPT四線接口) |
| 中文描述： | 5.0V的E1/CEPT四線接口（5.0V的E1/CEPT四線接口） |
| 文件頁數(shù)： | 33/38頁 |
| 文件大?。?/td> | 577K |
| 代理商： | T7688 |
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Data Sheet
May 1998
T7688 5.0 V E1/CEPT Quad Line Interface
33
Lucent Technologies Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent or latent damage to the device. These
are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of this device specification. Exposure to absolute maximum rat-
ings for extended periods can adversely affect device reliability.
Table 20. Absolute Maximum Ratings
Handling Precautions
Although protection circuitry has been designed into this device, proper precautions should be taken to avoid expo-
sure to electrostatic discharge (ESD) during handling and mounting. Lucent Technologies employs a human-body
model (HBM) and charged-device model (CDM) for ESD-susceptibility testing and protection design evaluation.
ESD voltage thresholds are dependent on the circuit parameters used in the defined model. No industry-wide stan-
dard has been adopted for the CDM. However, a standard HBM (resistance = 1500
, capacitance = 100 pF) is
widely used and, therefore, can be used for comparison purposes. The HBM ESD threshold presented here was
obtained by using these circuit parameters.
Operating Conditions
Parameter
Min
–0.5
–65
—
–0.5
—
Max
6.5
125
0.5
—
0.5
Unit
V
°
C
V
V
V
dc Supply Voltage
Storage Temperature
Maximum Voltage (digital pins) with Respect to V
DDD
Minimum Voltage (digital pins) with Respect to GND
D
Maximum Allowable Voltages (RTIP[1—4], RRING[1—4])
with Respect to V
DD
Minimum Allowable Voltages (RTIP[1—4], RRING[1—4])
with Respect to GND
–0.5
—
V
Table 21. HBM ESD Threshold Voltage
Device
T7688
Voltage
>1500 V
Table 22. CDM ESD Threshold Voltage
Device
T7688
Voltage
>1500 V
Table 23. Recommended Operating Conditions
Parameter
Symbol
T
A
V
DD
Min
–40
4.75
Typ
—
5.0
Max
85
5.25
Unit
°
C
V
Ambient Temperature
Power Supply
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