MDU3C
TRIPLE, HCMOS-INTERFACED
data
3
1
14
I1
VDD
FIXED DELAY LINE
(SERIES MDU3C)
delay
devices,
FEATURES PACKAGES
I1
• Three independent delay lines
• Fits standard 14-pin DIP socket
• Low profile
• Auto-insertable
1
I2
3
I3
5
• Input & outputs fully CMOS interfaced & buffered
GND
• 10 T2L fan-out capability
MDU3C-xx DIP
MDU3C-xxA2 Gull-Wing
MDU3C-xxB2 J-Lead
MDU3C-xxM Military DIP
7
FUNCTIONAL DESCRIPTION
The MDU3C-series device is a 3-in-1 digitally buffered delay line. The
signal inputs (I1-I3) are reproduced at the outputs (O1-O3), shifted in time
by an amount determined by the device dash number (See Table). The
delay lines function completely independently of each other.
VDD
14
O1
12
O3
10
O5
8
N/C
N/C
N/C
GND
PIN DESCRIPTIONS
I1-I3 Signal Inputs
O1-O3 Signal Outputs
VDD +5 Volts
GND Ground
inc.
2
13
3
I2
I3
Military SMD
MDU3C-xxMC2
12
4
11
5
10
6
9
7
8
N/C
O1
N/C
O2
N/C
O3
SERIES SPECIFICATIONS
• Minimum input pulse width: 100% of total delay
• Output rise time: 8ns typical
• Supply voltage: 5VDC ± 5%
• Supply current: I
I
= 40µa typical
CCL
= 60ma typical
CCH
• Operating temperature: 0° to 70° C
• Temp. coefficient of total delay: 300 PPM/°C
O3O2O1
100%
100% 100%
VCC GNDI1 I2 I3
Functional block diagram
DASH NUMBER SPECIFICATIONS
Part
Number
MDU3C-10
MDU3C-15
MDU3C-20
MDU3C-25
MDU3C-30
MDU3C-40
MDU3C-50
MDU3C-60
MDU3C-75
MDU3C-100
NOTE: Any dash number between 10 and 100
not shown is also available.
Delay Per
Line (ns)
10 ± 2.0
15 ± 2.0
20 ± 2.0
25 ± 2.0
30 ± 2.0
40 ± 2.0
50 ± 2.5
60 ± 3.0
75 ± 3.7
100 ± 5.0
1997 Data Delay Devices
Doc #97039 DATA DELAY DEVICES, INC. 1
12/12/97 3 Mt. Prospect Ave. Clifton, NJ 07013
MDU3C
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The MDU3C tolerances are guaranteed for input
pulse widths and periods greater than those
specified in the test conditions. Although the
device will function properly for pulse widths as
small as 100% of the total delay and periods as
small as 200% of the total delay (for a symmetric
input), the delays may deviate from their values at
low frequency. However, for a given input
condition, the deviation will be repeatable from
pulse to pulse. Contact technical support at Data
DEVICE SPECIFICATIONS
TABLE 1: ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL MIN MAX UNITS NOTES
DC Supply Voltage V
Input Pin Voltage V
Storage Temperature T
Lead Temperature T
DD
IN
STRG
LEAD
Delay Devices if your application requires device
testing at a specific input condition.
POWER SUPPLY BYPASSING
The MDU3C relies on a stable power supply to
produce repeatable delays within the stated
tolerances. A 0.1uf capacitor from VDD to GND,
located as close as possible to the VDD pin, is
recommended. A wide VDD trace and a clean
ground plane should be used.
-0.3 7.0 V
-0.3 VDD+0.3 V
-55 150 C
300 C 10 sec
TABLE 2: DC ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
High Level Output Voltage V
Low Level Output Voltage V
High Level Output Current I
Low Level Output Current I
High Level Input Voltage V
Low Level Input Voltage V
Input Current I
(0C to 70C, 4.75V to 5.25V)
OH
OL
OH
OL
IH
IL
IH
3.98 4.4 V VDD = 5.0, IOH = MAX
0.15 0.26 V VDD = 5.0, IOL = MAX
3.15 V
-4.0 mA
4.0 mA
1.35 V
0.10
µA
VIH = MIN, VIL = MAX
VIH = MIN, VIL = MAX
VDD = 5.0
Doc #97039 DATA DELAY DEVICES, INC. 2
12/12/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
MDU3C
MDU3C-xx (Commercial DIP)
1 3 5 7
MDU3C-xxM (Military DIP)
MDU3C-xxMC2 (Military SMD)
.780±.020
.010±.002
.780 MAX.
PACKAGE DIMENSIONS
814 12 10
Lead Material:
Nickel-Iron alloy 42
TIN PLATE
.280
MAX.
1 3 5 7
.820 MAX.
814 12 10
.410
TYP.
.290
MAX.
.018
TYP.
1 3 5 7
.600±.010
.020 TYP. .040
.200.090
.600
.790 MAX.
.015 TYP.
.070 MAX.
TYP.
8101214
.270
TYP.
.010±.002
.010 TYP.
.300
MAX.
MDU3C-xxA2 (Commercial Gull-Wing)
.350
MAX.
.430
TYP.
.050
TYP.
.320
.020
MAX.
TYP.
.130
.030
.018 TYP.
.600 TYP.
.020 TYP.
1 3 5 7
.200.110
.600
.790 MAX.
.200
TYP.
101214
±
.040
TYP.
8
.270
TYP.
.020 TYP.
.300
TYP.
.050 TYP.
.350
MAX.
MDU3C-xxB2 (Commercial J-Lead)
.320
TYP.
.110
TYP.
.020 TYP. .040
TYP.
8
91011121314
.007
.005
±
±
.050
.010
±
.882
.005
1 2 3 4 5 6 7
.100.090
.600
.710
.005
±
.590
MAX.
.280
MAX.
Doc #97039 DATA DELAY DEVICES, INC. 3
12/12/97 3 Mt. Prospect Ave. Clifton, NJ 07013
MDU3C
DELAY LINE AUTOMATED TESTING
TEST CONDITIONS
INPUT: OUTPUT:
Ambient Temperature: 25oC ± 3oC Load: 1 FAST-TTL Gate
Supply Voltage (VDD): 5.0V ± 0.1V C
Input Pulse: High = 5.0V ± 0.1V Threshold: 2.5V (Rising & Falling)
Low = 0.0V ± 0.1V
Source Impedance: 50Ω Max.
Rise/Fall Time: 5.0 ns Max. (measured
between 0.5V and 4.5V )
Pulse Width: PWIN = 1.5 x Total Delay
Period: PERIN = 10 x Total Delay
NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.
: 5pf ± 10%
load
PULSE
GENERATOR
TRIG
T
RISE
PW
I1
DEVICE UNDER
I2
I3
IN
COMPUTER
SYSTEM
TEST (DUT)
Test Setup
PER
IN
T
FALL
O1OUT
O2
O3
PRINTER
REF
IN
TRIG
TIME INTERVAL
COUNTER
RISE
V
IH
2.5V2.5V
0.5V0.5V
V
OH
T
FALL
V
IL
2.5V2.5V
V
OL
INPUT
SIGNAL
OUTPUT
SIGNAL
4.5V 4.5V
T
Timing Diagram For Testing
Doc #97039 DATA DELAY DEVICES, INC. 4
12/12/97 Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
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