3D3250 Datasheet, PDF (1/4 Pages) Data Delay Devices, Inc. – FIXED PULSE-WIDTH 10-TAP MILLISECOND TIMER (SERIES 3D3250)

FIXED PULSE-WIDTH 10-TAP
MILLISECOND TIMER
(SERIES 3D3250)
3D3250
FEATURES
 All-silicon, low-power CMOS technology
 CMOS compatible inputs and outputs
 Vapor phase, IR and wave solderable
 Auto-insertable (DIP pkg.)
 Timer range: 160ns through 16.0ms
 Output Pulse Width: Equal to one clock period
 Temperature/Vdd stability: Equal to that of reference clock
 Minimum input pulse width: 10.0ns
For mechanical dimensions, click here.
For package marking details, click here.
PINOUT
VDD 1
T1 2
T3 3
T5 4
T7 5
T9 6
CK 7
GND 8
16 VDDA
15 T2
14 T4
13 T6
12 T8
11 T10
10 TRG
9 GNDA
3D3250-xx DIP-14
3D3250D-xx SOIC-14
FUNCTIONAL DESCRIPTION
The 3D3250 10-tap timer is designed for use in applications that require long
yet very precise time intervals. Upon receipt of a trigger, the device generates
10 pulse outputs, spaced equally in time. The output-to-output time spacing is
equal to the product of the input clock period and the device dash number.
The stability of the timer is thus limited only by the stability of the reference
clock. Each output consists of a pulse whose width is equal to one period of
the reference clock. The 3D3250 is offered in a standard 16-pin auto-
insertable DIP and a space saving surface mount 16-pin SOIC package.
PIN DESCRIPTIONS
TRG Trigger Input
CK
Clock Input
T1-T10 Timer Outputs
VDD +3.3 Volts
VDDA +3.3 Volts
GND Ground
GNDA Ground
TABLE 1: PART NUMBER SPECIFICATIONS
PART
NUMBER
3D3250-5
3D3250-10
3D3250-20
3D3250-25
3D3250-50
3D3250-100
3D3250-200
3D3250-250
3D3250-500
3D3250-1K
3D3250-2K
3D3250-2.5K
3D3250-5K
3D3250-10K
3D3250-20K
3D3250-25K
3D3250-50K
REF CLK =
31.25 MHz
0.160
0.320
0.640
0.800
1.600
3.200
6.400
8.000
16.00
32.00
64.00
80.00
160.0
320.0
640.0
800.0
1600.0
OUTPUT-TO-OUTPUT SPACING (us)
REF CLK = REF CLK = REF CLK =
40.00 MHz 50.00 MHz 62.50 MHz
0.250
0.500
0.625
1.250
2.500
5.000
6.250
12.50
25.00
50.00
62.50
125.0
250.0
500.0
625.0
1250.0
0.200
0.400
0.500
1.000
2.000
4.000
5.000
10.00
20.00
40.00
50.00
100.0
200.0
400.0
500.0
1000.0
0.320
0.400
0.800
1.600
3.200
4.000
8.000
16.00
32.00
40.00
80.00
160.0
320.0
400.0
800.0
REF CLK =
80.00 MHz
0.2500
0.3125
0.6250
1.2500
2.5000
3.1250
6.2500
12.500
25.000
31.250
62.500
125.00
250.00
312.50
625.00
NOTE: Any dash number between 5 and 50K not shown is also available as standard.
Doc #14017
6/10/2014
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
2014 Data Delay Devices
1