DS36950V National Semiconductor, DS36950V Datasheet - Page 3

• Manufacturer Part Number: DS36950V
• Description: IC, RS485 BUS TRANSCEIVER, 5.25V, PLCC20
• Manufacturer: National Semiconductor

Specifications of DS36950V

• Device Type: Differential Transceiver
• Ic Interface Type: RS485
• No. Of Drivers: 1
• Supply Voltage Range: 4.75V to 5.25V
• Driver Case Style: PLCC
• No. Of Pins: 20
• Rohs Compliant: No

DRIVER SINGLE-ENDED CHARACTERISTICS
t
t
t
t
DRIVER DIFFERENTIAL CHARACTERISTICS
t
t
t
t
RECEIVER CHARACTERISTICS
t
t
t
t
t
t
t
DRIVER AND RECEIVER CHARACTERISTICS
V
I
I
I
I
I
PZH
PZL
PHZ
PLZ
R
PLHD
PHLD
SKD
PLHD
PHLD
SKD
ZH
ZL
HZ
LZ
IN
IH
IL
CC
CCZ
Electrical Characteristics
Symbol
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
CL
Switching Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation.
Note 2: Current into device pins is define as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: I
Note 4: ∆IV
Note 5: In EIA Standards EIA-422 and EIA-485, V
Note 6: Threshold parameter limits specified as an algebraic value rather than by magnitude.
Note 7: Hysteresis defined as V
Note 8: I
Note 9: Short one output at a time.
Note 10: Total package supply current.
Note 11: All typicals are given for V
, t
Symbol
F
IH
IN
and I
includes the receiver input current and driver TRI-STATE leakage current.
OD
Enable Input Clamp Voltage
Line Input Current
(Note 8)
Enable Input Current High
Enable Input Current Low
Supply Current (Note 10)
Supply Current (Note 10)
I and ∆IV
IL
R
R
R
R
Rise & Fall Time
Differential Propagation
Delays (Note 15)
|t
Differential Propagation Delays
C
|t
Output Enable Time to High Level
Output Enable Time to Low Level
Output Disable Time from High Level
Output Disable Time from Low Level
PLHD
PLHD
includes driver input current and receiver TRI-STATE leakage current.
L
L
L
L
L
= 110Ω (Figure 4)
= 110Ω (Figure 5)
= 110Ω (Figure 4)
= 110Ω (Figure 5)
= 15 pF, V
OC
− t
− t
I are changes in magnitude of V
PHLD
PHLD
Parameter
HST
| Differential Skew
CM
| Differential Receiver Skew
CC
= V
= 5.0V and T
= 1.5V (Figure 6)
TH
− V
TL
.
OC
Conditions
A
, which is the average of the two output voltages with respect to ground, is called output offset voltage, V
(Note 2) (Continued)
= 25˚C.
OD
I = −18 mA
Other Input = 0V
V
V
No Load, Outputs Enabled
No Load, Outputs Disabled
and V
OH
OL
= 0.4V
OC
= 2.4V
R
C
C
(Figures 3, 8)
C
(Figure 7)
, respectively, that occur when the input changes state.
L
L
D
L
= 54Ω
= 50 pF
= 15 pF
= 15 pF
Conditions
3
V
V
RE4 or DE
REC
RE4 or DE
REC
I
I
= +12V
= −7V
Min
9
9
9
9
Min
Typ
35
25
15
35
13
15
15
14
14
15
20
10
17
3
1
−0.45
Typ
0.5
75
50
Max
40
40
25
40
16
19
19
19
19
22
30
17
25
6
3
Max
−1.5
−0.8
−20
−60
20
60
90
70
1
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Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
mA
mA
mA
mA
µA
µA
µA
µA
V
OS
.