T9000
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
17 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 operation sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
External leads can be soldered safely at temperatures up to 300 °C.
Table 117. Absolute Maximum Ratings
Parameter
dc Supply Voltage Range
Symbol
VDD
Min
–0.5
–55
Max
6.5
Unit
V
Storage Temperature
Tstg
150
6.5
°C
V
Voltage (any pin) with Respect to GND
—
–0.5
18 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 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 to define the model. No industry-wide standard has been
adopted for the CDM. However, a standard HBM (resistance = 1500 Ω, capacitance = 100 pF) is widely used and,
therefore, can be used for comparison. The HBM ESD threshold presented here was obtained by using the circuit
parameters shown below.
Table 118. ESD Threshold Voltage
Device
Voltage
T9000
>500
19 Recommended Operating Conditions
Table 119. Recommended Operating Conditions
Parameter
Ambient Temperature
Any VDD
Symbol
TA
Test Condition
Min
–40
Typ
—
Max
85
Unit
°C
VDD = 5 V ± 5%
VDD
—
—
—
—
4.75
5.0
5.25
10
V
GND to GND
VGG
–10
—
mV
µF
Voltage Ref Capacitor
Master Clock Frequency
Master Clock Tolerance
CVR
MCLK
MCLK
0.08
0.1
0.2
—
15.36
—
MHz
NT Mode
LT Mode
–225*
–225 + x*†
47
—
—
–225*
–225 + x*†
53
ppm
ppm
Master Clock Duty Cycle
MCLK
—
—
%
* To meet ANSI T1.601 free-run line rate requirement, NT tolerance is 100 ppm.
† x = tolerance of MTC.
110
Lucent Technologies Inc.
AGERE [ AGERE SYSTEMS ]
