DS1020

DS1020 Programmable 8-Bit Silicon Delay Line www.dalsemi.com 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 IN E Q/PO P1 P2 P3 P4 GND PIN ASSIGNMENT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC OUT S P7 P6 C P5 D IN E Q/PO P1 P2 P3 P4 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC OUT S P7 P6 C P5 D DS1020 16-pin DIP (300-mil) See Mech. Drawings Section DS1020S 16-pin SOIC (300-mil) See Mech. Drawings Section PIN DESCRIPTION IN P0-P7 GND OUT VCC S E C Q D - Delay Input - Parallel Program Pins - Ground - Delay Output - +5 Volts - Mode Select - Enable - Serial Port Clock - Serial Data Output - 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 wi...