3D3250

Doc #14017

DATA DELAY DEVICES, INC.

1

6/10/2014

3 Mt. Prospect Ave. Clifton, NJ 07013

FIXED PULSE-WIDTH 10-TAP

MILLISECOND TIMER

(SERIES 3D3250)

FEATURES

PINOUT



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

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

OUTPUT-TO-OUTPUT SPACING (us)

REF CLK =

31.25 MHz

REF CLK =

40.00 MHz

REF CLK =

50.00 MHz

REF CLK =

62.50 MHz

REF CLK =

80.00 MHz

3D3250-5

0.160

3D3250-10

0.320

0.250

0.200

3D3250-20

0.640

0.500

0.400

0.320

0.2500

3D3250-25

0.800

0.625

0.500

0.400

0.3125

3D3250-50

1.600

1.250

1.000

0.800

0.6250

3D3250-100

3.200

2.500

2.000

1.600

1.2500

3D3250-200

6.400

5.000

4.000

3.200

2.5000

3D3250-250

8.000

6.250

5.000

4.000

3.1250

3D3250-500

16.00

12.50

10.00

8.000

6.2500

3D3250-1K

32.00

25.00

20.00

16.00

12.500

3D3250-2K

64.00

50.00

40.00

32.00

25.000

3D3250-2.5K

80.00

62.50

50.00

40.00

31.250

3D3250-5K

160.0

125.0

100.0

80.00

62.500

3D3250-10K

320.0

250.0

200.0

160.0

125.00

3D3250-20K

640.0

500.0

400.0

320.0

250.00

3D3250-25K

800.0

625.0

500.0

400.0

312.50

3D3250-50K

1600.0

1250.0

1000.0

800.0

625.00

NOTE: Any dash number between 5 and 50K not shown is also available as standard.

2014 Data Delay Devices

For mechanical dimensions, click

here.

For package marking details, click

here.

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

VDD

T1

T3

T5

T7

T9

CK

GND

VDDA

T2

T4

T6

T8

T10

TRG

GNDA

3D3250-xx

DIP-14

3D3250D-xx

SOIC-14