LVMDM
Series
LVC Low Voltage Logic
Buffered 5-Tap Delay Modules
Low Profile 8-Pin Package
Two Surface Mount Versions
Low Voltage CMOS 74LVC
Logic Buffered
5 Equal Delay Taps
Operating Temp. -40
O
C to +85
O
C
LVMDM
8-Pin Schematic
Vcc
8
Tap1 Tap3 Tap5
7
6
5
Inputs accept voltages up to 5.5 V
74LVC type input can be driven from either 3.3V or 5V
devices. This allows delay module to serve as a
translator in a mixed 3.3V / 5V system environment.
1
IN
2
3
4
GND
Tap2 Tap4
Electrical Specifications at 25
O
C
LVC 5 Tap
Tap 1
Tap 2
Tap 3
Tap 4
Tap 5
Tap-to-Tap
( ns )
( ns )
( ns )
( ns )
( ns )
(ns)
8 Pin P/N
LVMDM-7
3.0 ± 1.0
4.0 ± 1.0
5.0 ± 1.0
6.0 ± 1.0
7 ± 1.0
1.0 ± 0.4
LVMDM-9
3.0 ± 1.0
4.5 ± 1.0
6.0 ± 1.0
7.5 ± 1.0
9 ± 1.0
1.5 ± 0.5
LVMDM-11
3.0 ± 1.0
5.0 ± 1.0
7.0 ± 1.0
9.0 ± 1.0
11 ± 1.5
2.0 ± 0.6
LVMDM-13
3.0 ± 1.0
5.5 ± 1.0
8.0 ± 1.0
10.5 ± 1.0
13 ± 1.5
2.5 ± 0.8
LVMDM-15
3.0 ± 1.0
6.0 ± 1.0
9.0 ± 1.0
12.0 ± 1.5
15 ± 1.5
3.0 ± 1.0
LVMDM-20
4.0 ± 1.0
8.0 ± 1.2
12.0 ± 1.5
16.0 ± 1.5
20 ± 2.0
4.0 ± 1.0
LVMDM-25
5.0 ± 1.0
10.0 ± 1.5
15.0 ± 1.5
20.0 ± 2.0
25 ± 2.0
5.0 ± 1.5
LVMDM-30
6.0 ± 1.0
12.0 ± 1.5
18.0 ± 1.5
24.0 ± 2.0
30 ± 2.0
6.0 ± 1.5
LVMDM-35
7.0 ± 1.0
14.0 ± 1.5
21.0 ± 2.0
28.0 ± 2.0
35 ± 2.0
7.0 ± 1.8
LVMDM-40
8.0 ± 1.0
16.0 ± 1.5
24.0 ± 2.0
32.0 ± 2.0
40 ± 2.0
8.0 ± 2.0
LVMDM-45
9.0 ± 1.0
18.0 ± 1.5
27.0 ± 2.0
36.0 ± 2.0
45 ± 2.25
9.0 ± 2.0
LVMDM-50
10.0 ± 1.5
20.0 ± 2.0
30.0 ± 2.0
40.0 ± 2.0
50 ± 2.5
10 ± 2.0
LVMDM-60
12.0 ± 1.5
24.0 ± 2.0
36.0 ± 2.0
48.0 ± 2.4
60 ± 3.0
12 ± 2.0
LVMDM-75
15.0 ± 2.0
30.0 ± 2.0 45.0 ± 2.25 60.0 ± 3.0
75 ± 3.75
15 ± 2.5
LVMDM-80
16.0 ± 2.0
32.0 ± 2.0
48.0 ± 2.4
64.0 ± 3.2
80 ± 4.0
16 ± 2.5
LVMDM-100
20.0 ± 2.0
40.0 ± 2.0
60.0 ± 3.0
80.0 ± 2.0
100 ± 5.0
20 ± 3.0
** These part numbers do not have 5 equal taps. Tap-to-Tap Delays reference Tap 1.
TEST CONDITIONS
-- Low Voltage CMOS, LVC
V
CC
Supply Voltage ................................................ 3.30VDC
Input Pulse Voltage ................................................... 2.70V
Input Pulse Rise Time ....................................... 3.0 ns max.
Input Pulse Width / Period ........................... 1000 / 2000 ns
1. Measurements made at 25
O
C
2. Delay Times measured at 1.50V level of leading edge.
3. Rise Times measured from 0.75V to 2.40V.
4. 50pf probe and fixture load on output under test.
Dimensions in Inches (mm)
.505
(12.83)
MAX.
.285
(7.24)
MAX.
.020
(0.51) .250
TYP. (6.35)
MAX.
.120
(3.05)
MIN.
.020 .050
(0.51) (1.27)
TYP. TYP.
.100
(2.54)
TYP.
DIP
DIP
.010
(0.25)
TYP.
.300
(7.62)
.365
(9.27)
MAX.
OPERATING SPECIFICATIONS
Supply Voltage, V
CC
.......................................... 3.3
±
0.3 VDC
Supply Current, I
CC
........................... 10 mA typ., 30 mA max.
Supply Current, I
CCL
: V
IN
= GND ......................... 22 mA max.
Supply Current, I
CCH
: V
IN
= V
CC
............................ 10
µA
max.
Input Voltage, V
I
..................................... 0 V min., 5.5 V max.
Logic “1” Input, V
IH
.................................................. 2.0 V min.
Logic “0” Input, V
IL
................................................. 0.8 V max.
Logic “1” Out, V
OH
: V
CC
= 3V & I
OH
= -24 mA ........... 2.0 V min.
Logic “0” Out, V
OL
: V
CC
= 3V & I
OL
= 24 mA ......... 0.55 V max.
Input Capacitance, C
I
............................................. 5 pF, typ.
Input Pulse Width, P
WI
............................... 40% of Delay min.
Operating Temperature Range ......................... -40
O
to +85
O
C
Storage Temperature Range ......................... -65
O
to +150
O
C
.505
(12.83)
MAX.
.285
(7.24)
MAX.
.250
(6.35)
MAX.
.015
(0.38)
TYP.
G-SMD
G-SMD
.030
(0.76)
TYP.
.430 (10.92)
.400 (10.16)
.285
(7.24)
MAX.
.008 R
(0.20)
.010
(0.25)
TYP.
.020 .050
(0.51) (1.27)
TYP. TYP.
.100
(2.54)
TYP.
P/N Description
LVMDM
-
XXX X
LVC Buffered 5 Tap Delay
Molded Package Series:
8-pin DIP:
LVMDM
Total Delay in nanoseconds (ns)
Lead Style: Blank = Thru-hole
G = “Gull Wing” SMD
J = “J” Bend SMD
Examples: LVMDM-25G = 25ns (5ns per tap) 74LVC, 8-Pin G-SMD
LVMDM-100 = 100ns (20ns per tap) 74LVC, 8-Pin DIP
Specifications subject to change without notice.
.505
(12.83)
MAX.
J-SMD
.265
(6.73)
MAX.
.030
(0.76)
TYP.
J-SMD
.285 (7.24)
.260 (6.60)
.330 (8.38)
MAX.
.020 R
(0.51)
.020 .050
(0.51) (1.27)
TYP. TYP.
.100
(2.54)
TYP.
For other values & Custom Designs, contact factory.
LVMDM 9901
Rhombus
Industries Inc.
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Phone: (714) 898-0960
•
FAX: (714) 896-0971
www.rhombus-ind.com
•
email: sales@
rhombus-ind.com
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