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DS34C87T Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. DS34C87T
Description  CMOS Quad TRISTATE Differential Line Driver
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DS34C87T Datasheet(HTML) 3 Page - National Semiconductor (TI)

   
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Switching Characteristics (Note 4)
V
CC = 5V ±10%,t r,tf ≤ 6ns(Figures 1, 2, 3, 4)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
PLH,tPHL
Propagation Delay
S1 Open
6
11
ns
Input to Output
Skew
(Note 8)
S1 Open
0.5
3
ns
t
TLH,tTHL
Differential Output Rise
S1 Open
6
10
ns
And Fall Times
t
PZH
Output Enable Time
S1 Closed
12
25
ns
t
PZL
Output Enable Time
S1 Closed
13
26
ns
t
PHZ
Output Disable Time (Note 9)
S1 Closed
4
8
ns
t
PLZ
Output Disable Time (Note 9)
S1 Closed
6
12
ns
C
PD
Power Dissipation
100
pF
Capacitance (Note 10)
C
IN
Input Capacitance
6
pF
Note 8: Skew is defined as the difference in propagation delays between complementary outputs at the 50% point.
Note 9: Output disable time is the delay from the control input being switched to the output transistors turning off. The actual disable times are less than indicated
due to the delay added by the RC time constant of the load.
Note 10: CPD determines the no load dynamic power consumption, PD = CPD V
2CCf+I
CC VCC, and the no load dynamic current consumption, IS = CPD VCC f+
ICC.
Comparison Table of Switching Characteristics into “LS-Type” Load(Note 11)
V
CC = 5V, TA = +25˚C, tr ≤ 6 ns, tf ≤ 6ns(Figures 4, 5, 6, 7, 8, 9)
Symbol
Parameter
Conditions
DS34C87
DS3487
Units
Typ
Max
Typ
Max
t
PLH,tPHL
Propagation Delay
6
10
10
15
ns
Input to Output
Skew
(Note 8)
1.5
2.0
ns
t
THL,tTLH
Differential Output Rise
4
7
10
15
ns
and Fall Times
t
PHZ
Output Disable Time
C
L = 50 pF, RL = 200Ω,
8
11
17
25
ns
(Note 9)
S1 Closed, S2 Closed
t
PLZ
Output Disable Time
C
L = 50 pF, RL = 200Ω,
7
10
15
25
ns
(Note 9)
S1 Closed, S2 Closed
t
PZH
Output Enable Time
C
L = 50 pF, RL = ,
11191125
ns
S1 Open, S2 Closed
t
PZL
Output Enable Time
C
L = 50 pF, RL = 200Ω,
14211525
ns
S1 Closed, S2 Open
Note 11: This table is provided for comparison purposes only. The values in this table for the DS34C87 reflect the performance of the device but are not tested or
guaranteed.
Note 12: ESD Rating: HBM (1.5 k
Ω, 100 pF)
Inputs
≥ 1500V
Outputs
≥ 1000V
EIAJ (0
Ω, 200 pF)
All Pins
≥ 350V
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