ns32491 National Semiconductor Corporation, ns32491 Datasheet - Page 5

• Manufacturer Part Number: ns32491
• Description: Serial Network Interface
• Manufacturer: National Semiconductor Corporation

Symbol
V
V
I
I
V
V
V
I
V
V
V
V
I
Symbol
OSCILLATOR SPECIFICATION
t
t
TRANSMIT SPECIFICATION
t
t
t
t
t
t
t
t
t
t
t
t
t
6 0 Absolute Maximum Ratings
Supply Voltage (V
Input Voltage (TTL)
Input Voltage (differential)
Output Voltage (differential)
Output Current (differential)
Storage Temperature
Lead Temperature (soldering 10 sec)
Package Power Rating at 25 C
ESD rating is to be determined
7 0 Electrical Characteristics
8 0 Switching Characteristics
Note 1 All currents into device pins are positive all currents out of device pins are negative All voltages are referenced to ground unless otherwise specified
Note 2 All typicals are given for V
IH
IL
OS
CC
XTH
XTL
TCd
TCr
TCf
TDs
TDh
TEs
TEh
TOd
TOr
TOf
TOj
TOh
TOi
For actual power dissipation of the device please refer to Section 7 0
IH
IL
CL
OH
OL
OD
OB
DS
CM
(PC Board Mounted)
Derate Linearly at the rate of 23 8 mW C
X1 to Transmit Clock High
X1 to Transmit Clock Low
Transmit Clock Duty Cycle at 50% (10 MHz)
Transmit Clock Rise Time (20% to 80%)
Transmit Clock Fall Time (80% to 20%)
Transmit Data Setup Time to Transmit Clock Rising Edge
Transmit Data Hold Time from Transmit Clock Rising Edge
Transmit Enable Setup Time to Trans Clock Rising Edge
Transmit Enable Hold Time from Trans Clock Rising Edge
Transmit Output Delay from Transmit Clock Rising Edge
Transmit Output Rise Time (20% to 80%)
Transmit Output Fall Time (80% to 20%)
Transmit Output Jitter
Transmit Output High Before Idle in Half Step Mode
Transmit Output Idle Time in Half Step Mode
Input High Voltage (TTL and X1)
Input Low Voltage (TTL and X1)
Input High Current (TTL)
Input High Current (RX
Input Low Current (TTL)
Input Low Current (RX
Input Clamp Voltage (TTL)
Ouptut High Voltage (TTL MOS)
Output Low Voltage (TTL MOS)
Output Short Circuit Current (TTL MOS)
Differential Output Voltage (TX
Diff Output Voltage Imbalance (TX
Diff Squelch Threshold (RX
Diff Input Common Mode Voltage (RX
Power Supply Current
CC
)
CC
e
Parameter
5V and T
g
g
Parameter
CD
CD
A
g
e
g
g
)
25 C
CD
)
g
b
b
)
5 5 to
65 to 150 C
g
g
V
)
V
CC
)
0 to 5 5V
b
CC
0 to 16V
g
2 95W
40 mA
a
300 C
e
e
CD
16V
5V
6V
5V
g
g
)
g
5% T
5% T
5
V
V
V
V
I
I
I
78X termination and
270X from each to GND
same as above
10Mbit s
which the safety of the device cannot be guaranteed They
are not meant to imply that the device should be operated at
these limits
IN
OH
OL
Recommended Operating
Conditions
Supply Voltage (V
Ambient Temperature
Note Absolute maximum ratings are those values beyond
A
IN
IN
IN
IN
A
e
e b
Test Conditions
e
e
e
e
e
e b
e
0 to 70 C (Notes 1
8 mA
V
V
0 5V
0 5V
0 to 70 C (Note 2)
CC
CC
12 mA
100 mA
Figure
4
4
4
5
4
5
5
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
CC
)
Min
200
42
20
20
8
8
0
0
2)
g
b
b
5 25
Min
2 0
3 5
500
175
40
g
Typ
50
0 25
g
b
b
b
b
b
g
Max
5 25
500
270
0 8
0 5
1200
50
300
700
200
300
Max
1 2
40
800
20
20
58
40
8
8
7
7
0 to 70 C
5V
g
Units
Units
mA
mV
mV
mV
mA
mA
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
5%
V
V
V
V
V
V