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DS1020 Schematic ( PDF Datasheet ) - Dallas Semiconducotr

Teilenummer DS1020
Beschreibung Programmable 8-Bit Silicon Delay Line
Hersteller Dallas Semiconducotr
Logo Dallas Semiconducotr Logo 




Gesamt 9 Seiten
DS1020 Datasheet, Funktion
www.dalsemi.com
DS1020
Programmable 8-Bit
Silicon Delay Line
FEATURES
All-silicon time delay
Models with 0.15 ns, 0.25 ns, 0.5 ns, 1 ns,
and 2 ns steps
Programmable using 3-wire serial port or
8-bit parallel port
Leading and trailing edge accuracy
Standard 16-pin DIP or 16-pin SOIC
Economical
Auto-insertable, low profile
Low-power CMOS
TTL/CMOS-compatible
Vapor phase, IR and wave solderable
PIN ASSIGNMENT
IN
E
Q/PO
P1
P2
P3
P4
GND
1
2
3
4
5
6
7
8
16 VCC
15 OUT
14 S
IN 1
E2
13 P7 Q/PO 3
12 P6 P1 4
11 C
P2 5
P3 6
10 P5 P4 7
9 D GND
8
16 VCC
15 OUT
14 S
13 P7
12 P6
11 C
10 P5
9D
DS1020 16-pin DIP (300-mil) DS1020S 16-pin SOIC (300-mil)
See Mech. Drawings Section See Mech. Drawings Section
PIN DESCRIPTION
IN - Delay Input
P0-P7
- Parallel Program Pins
GND
- Ground
OUT
- Delay Output
VCC - +5 Volts
S - Mode Select
E - Enable
C - Serial Port Clock
Q - Serial Data Output
D - Serial Data Input
DESCRIPTION
The DS1020 Programmable 8-Bit Silicon Delay Line consists of an 8-bit, user-programmable CMOS
silicon integrated circuit. Delay values, programmed using either the 3-wire serial port or the 8-bit
parallel port, can be varied over 256 equal steps. The fastest model (-15) offers a maximum delay of
48.25 ns with an incremental delay of 0.15 ns, while the slowest model (-200) has a maximum delay of
520 ns with an incremental delay of 2 ns. All models have an inherent (step-zero) delay of 10 ns. After
the user-determined delay, the input logic state is reproduced at the output without inversion. The
DS1020 is TTL- and CMOS-compatible, capable of driving 10 74LS-type loads, and features both rising
and falling edge accuracy.
The all-CMOS DS1020 integrated circuit 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.
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DS1020 Datasheet, Funktion
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
Short Circuit Output Current
-1.0V to +7.0V
0°C to 70°C
-55°C to +125°C
260°C for 10 seconds
50 mA for 1 second
DS1020
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYM
TEST
Supply Voltage
High Level
Input Voltage
CONDITION
VCC
VIH
Low Level
Input Voltage
Input Leakage
Current
Active Current
High Level
Output Current
Low Level
Output Current
VIL
I1 0 VI VCC
ICC VCC=MAX;
PERIOD=1 µs
IOH VCC=MIN.
VOH=2.7V
IOL VCC=MIN.
VOL=0.5V
MIN
4.75
2.2
-0.5
-1.0
8
(0°C to 70°C; VCC = 5.0V ± 5%)
TYP MAX UNITS NOTES
5.00 5.25
VCC+0.5
V
V
1
1
0.8 V 1
1.0 µA
30.0 mA
3
-1.0 mA
mA 4
AC ELECTRICAL CHARACTERISTICS
PARAMETER
Clock Frequency
Enable Width
Clock Width
Data Setup to Clock
Data Hold from Clock
Data Setup to Enable
Data Hold from Enable
Enable to Serial
Output Valid
Enable to Serial
Output High Z
Clock to Serial
Output Valid
Clock to Serial
Output Invalid
Enable Setup to Clock
Enable Hold from Clock
Parallel Input Valid
to Delay Valid
SYMBOL
fC
tEW
tCW
tDSC
tDHC
tDSE
tDHE
tEQV
tEQZ
tCQV
tCQX
tES
tEH
tPDV
MIN
50
50
30
10
30
20
0
10
50
50
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(0°C to 70°C; VCC = 5V ± 5%)
TYP MAX UNITS NOTES
10 MHz
ns
ns
ns
ns
ns
ns
50 ns
50 ns
50 ns
ns
ns
ns
50 µs

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