See the related link, below, for the 8086/8088 pinout.
WHAT IS THE PINS CONFIGURATION OF 8086?
The MN/MX- ping on the 8086 is pin 33.
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.
The 8086 family of microprocessors, including the 8086, 80C86, and 80C86AL, are presented in 40-pin DIP packages.
Its MRDC (memory read control) it is a maximum mode pin in 8086 microprocessor
40 PINS
In the 8086, pin 35 (A19/S6) is used as the high order address bit during the beginning of each memory access cycle. Afterwards, it is a spare status pin and is unused.
it is a 16 bit microprocessor & it has 40 pin .
The 8086 comes in a 40 pin package with 2 ground pins and one power pin; the remaining 37 signal pins every single one is important.
The BHE (Bus High Enable) pin on the 8086 is latched by the 8282 in order to indicate if a write cycle is a word (BHE=1) or byte (BHE=0) cycle.
The READY pin is used to synchronize memory, and is applicable to every memory operation. The TEST pin is used to synchronize external logic and is specific to the WAIT instruction.
There is no maximum pin in the 8085. In the 8086/8088, however, there is a min/max pin, called MN/MX-, that is used to configure whether certain bus control signals are provided by the 8086/8088, or by the 8288 bus controller. In the latter case, this frees up several pins for other, more sophisticated, i.e. maximum mode, uses.