IL74 Datasheet, PDF (1/4 Pages) Siemens Semiconductor Group – PHOTOTRANSISTOR OPTOCOUPLER

FEATURES
• 7400 Series T2L Compatible
• Transfer Ratio, 35% Typical
• Coupling Capacitance, 0.5 pF
• Single, Dual, & Quad Channel
• Industry Standard DIP Package
• Underwriters Lab File #E52744
•
V
DE
VDE Approvals #0884
(Optional with Option 1, Add -X001 Suffix)
DESCRIPTION
The IL74 is an optically coupled pair with a Gal-
lium Arsenide infrared LED and a silicon NPN
phototransistor. Signal information, including a
DC level, can be transmitted by the device while
maintaining a high degree of electrical isolation
between input and output. The IL74 is especially
designed for driving medium-speed logic, where
it may be used to eliminate troublesome gound
loop and noise problems. Also it can be used to
replace relays and transformers in many digital
interface applications, as well as analog applica-
tions such as CRT modulation.
The ILD74 has two isolated channels in a single
DIP package; the ILQ74 has four isolated chan-
nels per package.
SINGLE CHANNEL IL74
DUAL CHANNEL ILD74
QUAD CHANNEL ILQ74
PHOTOTRANSISTOR OPTOCOUPLER
Dimensions in inches (mm)
Pin One ID.
321
.248 (6.30)
.256 (6.50)
Anode 1
Cathode 2
6 Base
5 Collector
.039
(1.00)
min.
4°
typ.
.018 (0.45)
.022 (0.55)
4 56
.335 (8.50)
.343 (8.70)
NC 3
4 Emitter
.300 (7.62)
typ.
.130 (3.30)
.150 (3.81)
.020 (.051) min.
.031 (0.80)
.035 (0.90)
.100 (2.54) typ.
18° typ.
.010 (.25)
.014 (.35)
.300 (7.62)
.347 (8.82)
.110 (2.79)
.150 (3.81)
.268 (6.81)
.255 (6.48)
43 21
Pin One I.D.
Anode 1
8 Emitter
Cathode 2
7 Collector
56 78
.390 (9.91)
.379 (9.63)
Cathode
Anode
.045 (1.14) .150 (3.81)
.030 (.76) .130 (3.30)
3
4
.305 typ.
(7.75) typ.
6 Collector
5 Emitter
4°
Typ.
.022 (.56)
.018 (.46)
.040 (1.02) ^{3°–9°}
.030 (.76 )
.100 (2.54) Typ.
10 °
Typ.
.012 (.30)
.008 (.20)
.135 (3.43)
.115 (2.92)
Anode 1
16 Emitter
Cathode 2
15 Collector
Cathode 3
8
7
6
5
4
3
2
1
pin one
ID. _Anode
4
14 Collector
13 Emitter
.240 (6.10)
.260 (6.60)
Anode 5
Cathode 6
12 Emitter
11 Collector
9 10 11 12 13 14 15 16
.780 (19.81)
.800 (20.32)
Cathode 7
Anode 8
10 Collector
9 Emitter
.040 (1.02)
.050 (1.27)
.280 (7.11)
.330 (8.38)
.014
(.35)
typ.
.048 (1.22)
.052 (1.32)
.016 (.41)
.020 (.51)
.033 (.84)
typ.
.034 (.86)
.130 (3.30)
.150 (3.81)
.300 (7.62)
typ.
.020 (.51)
.030 (.76)
.0255 (.65)
typ.
.100 (2.54) typ.
3° to 9°
.008 (.20)
.012 (.31)
.130 (3.30)
.150 (3.81)
5–1