Que: 131. 8255 has handshaking capability?
|
| a. yes |
| b. no |
| c. can’t be said |
| d. depends on the conditions |
Que: 132. The 8255 can be programmed in any of the
|
| a. 2 modes |
| b. 3 modes |
| c. 4 modes |
| d. 5 modes |
Que: 133. RTC is used for
|
| a. conversion |
| b. communication |
| c. real time and clock measurement |
| d. memory management |
(c). real time and clock measurement
Que: 134. RTC chips use______to compute time, date when the power is off.
|
| a. ac supply |
| b. generators |
| c. rectifiers |
| d. battery |
Que: 135. DS12887 is known for as a
|
| a. Communication device |
| b. Good battery device |
| c. RTC chip |
| d. All of the mentioned |
Que: 136. DS1307 is a parallel RTC with I2C bus.
|
| a. TRUE |
| b. FALSE |
| c. can’t be said |
| d. depends on the conditions |
Que: 137. DS1307 is a _______ pin IC and operates on_______ clock frequency.
|
| a. 16, 8Mhz |
| b. 8, 16Mhz |
| c. 16, 32Mhz |
| d. 8, 32Mhz |
Que: 138. Vbat requires a positive signal of
|
| a. 3V |
| b. 5V |
| c. 9V |
| d. 12V |
Que: 139. SQW(pin no 7) is an
|
| a. input pin |
| b. output pin |
| c. i/o pin |
| d. none of the mentioned |
Que: 140. DS1307 has a total of _______ bytes of RAM space?
|
| a. 32 |
| b. 64 |
| c. 128 |
| d. 256 |