Datasheet


  
SCHS319A − NOVEMBER 2002 − REVISED NOVEMBER 2004
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C
−55°C
TO 125°C
−40°C
TO 85°C
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN MAX MIN MAX MIN MAX
UNIT
V
T+
Positive-going
threshold
5 V 1.4 2 1.4 2 1.4 2 V
V
T−
Negative-going
threshold
5 V 0.8 1.3 0.8 1.3 0.8 1.3 V
∆V
T
Hysteresis
(V
T+
− V
T−
)
5 V 0.4 0.4 0.4 V
I
OH
= −50 µA 4.5 V 4.4 4.4 4.4
V
OH
V
I
= V
T+
I
OH
= −24 mA 4.5 V 3.94 3.7 3.8
V
V
OH
V
I
= V
T+
I
OH
= −50 mA
†
5.5 V 3.85
V
I
OH
= −75 mA
†
5.5 V 3.85
I
OL
= 50 µA 4.5 V 0.1 0.1 0.1
V
OL
V
I
= V
T−
I
OL
= 24 mA 4.5 V 0.36 0.5 0.44
V
V
OL
V
I
= V
T−
I
OL
= 50 mA
†
5.5 V 1.65
V
I
OL
= 75 mA
†
5.5 V 1.65
I
I
V
I
= V
CC
or GND 5.5 V ±0.1 ±1 ±1 µA
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 4 80 40 µA
DI
CC
‡
V
I
= V
CC
− 2.1 V 4.5 V to 5.5 V 2.4 3 2.8 mA
C
i
10 10 10 pF
†
Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize
power dissipation. Test verifies a minimum 50-Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C.
‡
Additional quiescent supply current per input pin, TTL inputs high, 1 unit load
ACT INPUT LOAD TABLE
INPUT
UNIT LOAD
A 0.21
Unit load is ∆I
CC
limit specified in
electrical characteristics table
(e.g., 2.4 mA at 25°C).
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V " 0.5 V, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
−55°C
TO 125°C
−40°C
TO 85°C
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
UNIT
t
PLH
A
Y
3.6 14.5 3.7 13.2
ns
t
PHL
A Y
2.4 9.5 2.4 8.6
ns
operating characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TYP UNIT
C
pd
Power dissipation capacitance 45 pF