TTL LOGIC up down counter Synchronous
Unipolar Stepper Motor Driver 74194
http://www.circuitous.ca/stepper2012unipolar.htmlttl logic count ic stepper motor circuit
Digital Counters
https://www.learnabout-electronics.org/Digital/dig56.php
74HC193 Presettable synchronous 4-bit binary up/down counter
74HC193 74HC154 74HC193 counter
https://en.wikipedia.org/wiki/List_of_7400-series_integrated_circuits
universal shift register pipo
SN54HC195 4-BIT PARALLEL-ACCESS SHIFT REGISTERS
SN74178
74HC299D 8-bit Universal Shift Register with 3-state outputs
universal shift register pipo multiplexers
https://vlsiverify.com/verilog/verilog-codes/universal-shift-register
https://www.orientalmotor.com/stepper-motors/technology/stepper-motor-basics.html
8255A Construction and Application of a Computer
Based Interface Card Address decoder portion of the interface card.SLO-SYN stepper
motor manufactured Connection diagram of the interface
card to the SLO-SYN 430-PT Translator
https://www.engineersgarage.com/simple-stepper-motor-driver-using-555-timer-ic/.
"20A Unipolar Stepper Driver"
http://www.dalton.ax/stepper/assembly.html
constant current-chopper-driver-ups-stepper motor-performance-stmicroelectronics.pdf
https://320volt.com/en/pic16f628-ve-lmd18245-ile-micro-step-kontrol/
https://people.montefiore.uliege.be/smeets/ppi.html
https://geocities.ws/xxxtoytech/parallel
https://www.researchgate.net/figure/AD-DA-circuit-by-8255-IC_fig3_250345524
https://www.next.gr/other-circuits/8255-uses-64-input-expansion-interface-circuit-l60165.html
8085-8255-interfacing-tutorial/
circuit 8255a control card 8255 uses 64 input expansion interface circuit
pulse clock synchronize multi stepper motor motion
Synchronized 2-Axis Motion With Variable Speed
simultaneously synchronized Synchronizing stepper motor
https://forum.arduino.cc/t/sync-two-stepper-motor/556934
https://www.aerodiode.com/product/pulse-delay-generator/
https://www.electronicproducts.com/motor-control-design-noise-reduction-in-stepper-motors/
https://www.ti.com/product/zh-tw/DRV8805
https://slideplayer.com/slide/13851658/
Interfacing of stepper motor - ppt download
https://www.theremin.us/Circuit_Library/unipolar_stepper_motor.htm
https://www.learningelectronics.net/circuits/bipolar-stepper-motor-control.html
https://www.electronicproducts.com/motor-control-design-an-introduction-to-motors-and-controllers/
https://www.researchgate.net/figure/Two-phases-bipolar-stepper-motor-control-circuit-An-input-called-CONTROL-determines_fig1_266293888
stepper motor L297 L298
Motor Control Closed-loop System(Arduino Shield) | Toshiba Electronic Devices & Storage Corporation | Americas – United States
https://toshiba.semicon-storage.com/us/semiconductor/design-development/referencedesign/detail.RD022.html
