DS34LV87TM National Semiconductor, DS34LV87TM Datasheet - Page 3

• Manufacturer Part Number: DS34LV87TM
• Description: RS422/485 Line Driver IC
• Manufacturer: National Semiconductor

Specifications of DS34LV87TM

• Device Type: Line
• No. Of Drivers: 4
• Driver Case Style: SOIC
• No. Of Pins: 16
• Mounting Type: Surface Mount
• Output Current Max: 150mA
• Peak Reflow Compatible (260 C): No
• Supply Voltage: 5V
• Interface Circuit Standard 1: EIA/TIA-422-B/RS-422
• Number Of Receivers: Not Required
• Number Of Transmitters: 4
• Number Of Transceivers: Not Required
• Data Transmission Topology: Multidrop
• Receiver Signal Type: Not Required
• Transmitter Signal Type: Differential
• Single Supply Voltage (typ): 3.3V
• Single Supply Voltage (min): 3V
• Single Supply Voltage (max): 3.6V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Supply Current: 0.1mA
• Power Supply Requirement: Single
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

t
t
t
t
t
t
t
t
t
t
t
f
Symbol
PHLD
PLHD
SKD
SK1
SK2
TLH
THL
PHZ
PLZ
PZH
PZL
MAX
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 device
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.
Note 2: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except differential
voltages V
Note 3: All typical values are given for V
Note 4: Only one output shorted at a time. The output (true or complement) is configured High.
Note 5: f = 1 MHz, t
Note 6: See TIA/EIA-422-B specifications for exact test conditions.
Note 7: This specification limit is for compliance with TIA/EIA-422-B and ITU-T V.11.
Note 8: Devices are at the same V
Note 9: All channels switching, output duty cycle criteria is 40%/60% measured at 50%. This parameter is guaranteed by design and characterization.
Parameter Measurement Information
OD1
Differential Propagation Delay
High to Low
Differential Propagation Delay
Low to High
Differential Skew
|t
Skew, Pin to Pin (same device)
Skew, Part to Part (Note 8)
Differential Transition Time
Low to High (20% to 80%)
Differential Transition Time
High to Low (80% to 20%)
Disable Time High to Z
Disable Time Low to Z
Enable Time Z to High
Enable Time Z to Low
Maximum Operating Frequency
(Note 9)
PHLD
, V
OD2
–t
r
, V
PLHD
and t
OD3
f
.
|
≤ 6 ns (10% to 90%).
CC
and within 5˚C within the operating temperature range.
Parameter
CC
= 3.3V and T
FIGURE 1. Differential Driver DC Test Circuit
(Notes 5, 6)
A
= +25˚C.
3
R
(Figures 2, 3)
(Figures 4, 5 )
L
= 100Ω, C
Conditions
L
= 50 pF
Min
6
6
01264502
10.5
Typ
0.5
1.0
3.0
4.2
4.7
11
12
22
22
32
9
Max
www.national.com
2.0
2.0
5.0
16
16
10
10
20
20
32
32
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns