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FEATURES
All-silicon time delay
Two programmable outputs from a single
input produce output-to-output delays
between 9ns and 84ns depending on device
type
Programmable via four input pins
Programmable increments of 3ns to 5ns with
a minimum of 9ns and a maximum of 84ns
Output pulse is a reproduction of input pulse
after
Delay with both leading and trailing edge
accuracy
Standard 16-pin DIP or surface mount 16-pin
SOIC
Auto-insertable
Low-power CMOS design is TTL-compatible
PIN ASSIGNMENT
PIN DESCRIPTION
IN - Delay Line Input
OUTA, OUTB - Delay Line Outputs
A0-A3 - Parallel Program Inputs
for OUT1
B0-B3 - Parallel Program Inputs
for OUT2
EA , EB - Enable A and B Inputs
V
CC
- +5V Input
GND - Ground
DESCRIPTION
The DS1045 is a programmable silicon delay line having one input and two 4-bit programmable delay
outputs. Each 4-bit programmable output offers the user 16 possible delay values to select from, starting
with a minimum inherent DS1045 delay of 9ns and a maximum achievable delay in the standard DS1045
family of 84ns. The standard DS1045 product line provides the user with three devices having uniform
delay increments of 3ns, 4ns, and 5ns, depending on the device. Table 1 presents standard device family
and delay capability. Additionally, custom delay increments are available for special order through Dallas
Semiconductor.
The DS1045 is TTL and CMOS-compatible and capable of driving ten 74LS-type loads. The output
produced by the DS1045 is both rising and falling edge precise. The DS1045 programmable silicon delay
line has been designed as a reliable, economic alternative to hybrid programmable delay lines. It is
offered in a standard 16-pin auto-insertable DIP and a space-saving surface mount 16-pin SOIC package.
DS1045
4-Bit Dual Programmable Delay Line
www.maxim-ic.com
IN
V
CC
EA
A0
A1
A2
A3
GND
V
CC
EB
OUTB
B0
B1
B2
B3
OUTA
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN
V
CC
16
1
V
CC
E
A0
A1
A2
A3
GND
EB
OUTB
B0
B1
B2
B3
OUTA
2
3
4
5
6
7
8
15
14
13
12
11
10
9
DS1045 16-Pin DIP
See Mech. Drawings
Section
DS1045S 16-Pin SOIC (300-mil)
See Mech. Drawings
Section
