P R E L I M I N A R Y
ABSOLUTE MAXIMUM RATINGS
OPERATING RANGES
Storage Temperature. . . . . . . . . . . . . –65°C to +150°C
Ambient Temperature Under Bias. . . . . . . . . 0 to 70°C
Supply Voltage referenced to
Commercial (C) Devices
Temperature (TA) . . . . . . . . . . . . . . . . . .0°C to + 70° C
Supply Voltages (V ). . . . . . . . . . . . . . . . . +5 V ±5%
DD
Operating ranges define those limits between which the
functionality of the device is guaranteed.
AV or DV (AV , DV ) . . . . . . . . . . . . . .–0.3 to +6V
SS
SS
DD
DD
Stresses above those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent device failure. Functionality
at or above these limits is not implied. Exposure to Absolute
Maximum Ratings for extended periods may affect device re-
liability. Programming conditions may differ.
DC CHARACTERISTICS over operating ranges unless otherwise specified
Parameter
Symbol
Parameter Description
Input LOW Voltage
Test Conditions
DV = 0.0 V
Min
Max
Unit
Digital I/O
V
-0.5
2.0
-
0.8
V
V
IL
IH
SS
V
Input HIGH Voltage
DV +0.5
DD
V
Output LOW Voltage
I
=4.0 mA
=-0.4 mA
0.4
-
V
OL
OH
IH
OL
V
I
Output HIGH Voltage
I
2.4
-
V
OH
Input Leakage Current HIGH (DIR,
SDATA, CLK, RST)
0<V <DV
10
µA
IN
DD
I
Input Leakage Current LOW (DIR,
SDATA, CLK, TEST)
0V<V <DV
-
-10
µA
IL
IN
DD
I
InputLeakageCurrentHIGH(TEST)
Input Leakage Current LOW (RST)
0<V <DV
-
-
500
µA
µA
ILDH
IN
DD
I
0V<V <DV
-500
ILDL
IN
DD
PAUI Ports
V
Output HIGH Voltage
Output LOW Voltage
PAUI Mode
PAUI Mode
PAUI Mode
PAUI Mode
V
+ 0.45
DD/2
-
V
V
POH
V
-
V
-0.45
POL
DD/2
V
Input HIGH Voltage
V
+ 0.45
-
V
PIH
DD/2
V
Input LOW Voltage
-
-
-
V
- 0.45
V
PIL
DD/2
I
Input Leakage Current HIGH
Input Leakage Current LOW
AV = MAX
10
-10
-0.175
µA
µA
mV
PILH
DD
I
AV = MAX
DD
PILL
V
PDO Squelch (the value PDO must go to
before internal PDO carrier sense can be
turned on)
V
-0.400 V
DD/2
PASQ
DD/2
Twisted Pair Ports
I
Input Current at RXD±
RXD Differential Input Resistance
RXD±, Open Circuit Input Voltage
(Bias)
AV <V <AV
DD
-500
10
500
-
µA
kΩ
V
IRXD
SS
IN
R
(Note 1)
= 0 mA
RXD
V
I
AV -3.0
AV -1.5
TIVB
IN
DD
DD
V
Differential Mode Input Voltage Range
(RXD)
AV = 5.0 V
-3.1
300
3.1
520
-300
293
-120
V
TIDV
DD
V
RXD Positive Squelch Threshold
(Peak)
Sinusoid 5 MHz <f< 10 MHz
Sinusoid 5 MHz <f< 10 MHz
Sinusoid 5 MHz <f< 10 MHz
mV
mV
mV
mV
TSQ+
V
RXD Negative Squelch Threshold
(Peak)
-520
120
TSQ-
THS+
V
RXD Post-Squelch Positive Threshold
(Peak)
V
RXD Post-Squelch Negative Threshold Sinusoid 5 MHz <f< 10 MHz
(Peak)
-293
THS-
16
Am79C988A
AMD [ AMD ]
