defining a degree of excellence
5 TAP LEADING EDGE CONTROL
LOW VOLTAGE DELAY MODULES
.20 Typ
.375
.350
.20 Typ
12 4 10 6 8
.285 Max
.10
.015
.004 4
o
.012
.008
.012
.008
Vcc 14
In 1
Gnd 7
.325
Cat 30 -R2
bel
.30
(DC )
(P/N)
.20
bel
.30
*
(DC)
(P/N)
.20
.285 Max
.10
.80 Max
.22 Max
.018
Coplanarity + .002
.80 Max
.23 Max
100
o
90
o
.20 Max
.015 Min
.045
.030
.12 Min
.018
Part Numbers
SMD
Thru-Hole
Total
Delay
25 ns
30 ns
40 ns
50 ns
60 ns
70 ns
Delay
per Tap
5 ns
6 ns
8 ns
10 ns
12 ns
14 ns
16
18
20
25
ns
ns
ns
ns
Rise
Time
3 ns
3 ns
3 ns
3 ns
3 ns
3 ns
3
3
3
3
ns
ns
ns
ns
Ein
Trin
PW
P
P
Iccl
Vcc
Test Conditions @ 25
o
C
Pulse Voltage
Rise Time
Pulse Width
Pulse Period
Supply Current
Supply Voltage
3.0 Volts
3.0 ns (10%-90%)
1.2 x Total Delay
4 x Pulse Width
25 ma Typical
3.3 Volts
S477-0025-02 A477-0025-02
S477-0030-02 A477-0030-02
S477-0040-02 A477-0040-02
S477-0050-02 A477-0050-02
S477-0060-02 A477-0060-02
S477-0070-02 A477-0070-02
S477-0080-02
S477-0090-02
S477-0100-02
S477-0125-02
Electrical Characteristics
V c c Supply Voltage
Vih Logic 1 Input Voltage
Vil Logic 0 Input Voltage
Iik Input Clamp Current
Ioh Logic 1 Output Current
Iol Logic 0 Output Current
Voh Logic 1 Output Voltage
Vol Logic 0 Output voltage
Vik Input Clamp Voltage
Iih Logic 1 Input Current
Iil
Logic 0 Input Current
Icch Logic 1 Supply Current
Iccl Logic 0 Supply Current
Ta Operating Free Air Temperature
PW Min. Input Pulse Width of Total Delay
d
Maximum Duty Cycle
Tc
Temp. Coeff. of Total Delay (TD)
Min.
3.0
2.4
Max.
3.6
0.8
-20
20
-20
2.9
0.1
-0.5
1
-1
10
30
70
o
50
Units
V
V
V
ma
ma
ma
V
V
V
ua
ua
ma
ma
C
%
%
A477-0080-02
80 ns
A477-0090-02
90 ns
A477-0100-02 100 ns
A477-0125-02 125 ns
S477-0150-02 A477-0150-02 150 ns
S477-0200-02 A477-0200-02 200 ns
S477-0250-02 A477-0250-02 250 ns
30 ns
40 ns
50 ns
3 ns
3 ns
3 ns
Tolerances
Input to Taps + 2 ns or 5 % , Whichever is Greater
Tap to Tap + 2 ns or 7%, Whichever is Greater
Delays measured @ 50% levels on Leading Edge only
with no loads on Taps
Rise and Fall Times measured from 10% to 90% levels
0
o
40
Drive Capabilities
Nh Logic 1 Fanout
Nl Logic 0 Fanout
-
-
10 LSTTL Loads Max.
10 LSTTL Loads Max.
100 + (25000/TD) PPM/
O
C
Notes
Transfer molded for better reliability
Compatible with TTL & CMOS circuits
Terminals: Electro-Tin plate phosphor bronze
Performance warranty is limited to specified parameters listed
SMD - Tape & Reel available:
32mm Wide x 16mm Pitch, 500 pieces per 13" reel
Recommended Temperature Profile
300
o
C
200
o
C
100
o
C
Temp.
Infra Red
225
o
C Max Temp.
> 185
o
C
for 90 Seconds Max
0
2
4
6
Time in Minutes
8
Other Delays and Tolerances Available
Consult Sales
Specifications subject to change without notice.
Corporate Office
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: Belfuse@compuserve.com
Internet: http://www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366
21
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