MICROPROCESSOR AND MICROCONTROLLER

8085 MICROPROCESSOR

FEATURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The number of counters that are present in the programmable timer device 8254 is
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -Explanation: There are three counters that can be used as either counters or delay generators.

Detailed explanation-2: -The popular 8254 offers three independent 16-bit down counters. Each counter has a clock input, control gate and an output. You can program each counter for maximum count values from 2 to 65535. Version 2 of the 8254 has a maximum input clock frequency of 10 MHz.

Detailed explanation-3: -The programmable timer device 8253 contains three independent 16-bit counters, each with a maximum count rate of 2.6 MHz.

Detailed explanation-4: -The 8253 timer is a 24-pin IC and operates at +5 V dc. It consists of three independent programmable 16-bit counters: Counter 0, Counter 1, and Counter 2. Each counter operates as a 16-bit down counter and each counter consists of clock input, gate input and output as depicted in Fig. 8.75.

There is 1 question to complete.