Datasheet

SN74F1056
8-BIT SCHOTTKY BARRIER DIODE
BUS-TERMINATION ARRAY
SDFS085A – AUGUST 1992 – REVISED JULY 1997
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Steady-state reverse voltage, V
R
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous forward current, I
F
: Any D terminal from GND 50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total through all GND terminals 170 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repetitive peak forward current, I
FRM
(see Note 1): Any D terminal from GND 300 mA. . . . . . . . . . . . . . . . . .
Total through all GND terminals 1.2 A. . . . . . . . . . . . . . .
Continuous total power dissipation at (or below) 25°C free-air temperature 500 mW. . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: These values apply for t
w
≤ 100 µs, duty cycle ≤ 20%.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
single-diode operation (see Note 2)
PARAMETER TEST CONDITIONS MIN TYP
‡
MAX UNIT
I
R
Static reverse current V
R
= 7 V 2 µA
V
F
Static forward voltage
I
F
= 18 mA 0.8 1
V
V
F
Static
for
w
ard
v
oltage
I
F
= 50 mA 1 1.2
V
V
FM
Peak forward voltage I
F
= 200 mA 1.23 V
C
t
Total ca
p
acitance
V
R
= 0, f = 1 MHz 3 3.75
p
F
C
t
Total
capacitance
V
R
= 2 V, f = 1 MHz 2.5 3
pF
‡
All typical values are at T
A
= 25°C.
NOTE 2: Test conditions and limits apply separately to each of the diodes. The diodes not under test are open-circuited during the measurement
of these characteristics.
multiple-diode operation
PARAMETER TEST CONDITIONS MIN TYP
‡
MAX UNIT
I
x
Internal crosstalk current Total GND current = 1.2 A, See Note 3 10 50 µA
‡
All typical values are at T
A
= 25°C.
NOTE 3: I
x
is measured under the following conditions with one diode static, all others switching:
Switching diodes: t
w
= 100 µs, duty cycle = 20%
Static diode: V
R
= 5 V
The static diode input current is the internal crosstalk current I
x
.
switching characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
rr
Reverse recovery time I
F
= 10 mA, I
RM(REC)
= 10 mA, I
R(REC)
= 1 mA, R
L
= 100 Ω 5 7 ns
undershoot characteristics
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
US
Undershoot voltage
t
f
= 2 ns, t
w
= 50 ns, V
IH
= 5 V, V
IL
= 0, Z
S
= 25 Ω, Z
O
= 50 Ω,
L = 36-inch coax
0.6 0.7 V