The 8085 is a 40 pin ic because Intel designed it that way.
40
40 PINS
Vss, also known as Gnd, is pin 20 on the 8085.
One.
microprocessor 8085 is basic 8 bit microprocessor by Intel Corp. it has 64Kb memory and 16 address buses and 8 data buses it has 40 pin ic. 8 address and 8 data buses are multiplexed with each other for reducing the total number of pins from the microprocessor 8085 . it require 5MHz clock frequency for operation. only a crystal which connected easily across two pins of microprocessor can provide this clock.
Pin 28 on the 8086/8088 is M/IO-, in minimum mode. The equivalent pin on the 8085 is IO/M-, and has opposite polarity.
What enable1&enable2 in pin l293d
Is it APR 9600 or ARP 9600? If it is APR 9600 sound record/replay IC, check out the link given below. It contains the pin configuration of the IC.
TRAP is a non maskable interrupt pin in 8085.....it has the highest priority out of all the interrupts...it is used in emergency n critical states..ex.during power loss etc.
IC pins are numbered anti-clockwise around the IC starting near the notch or dot.
pin tetel
r2j10160