![](/images/new-backgrounds/1223140/223140341x1.webp)
5)Interface circuit
a) Receiving circuit
75189 or equivalent
INPUT
OUTPUT
+12V
+3V
INPUT |
b) Sending circuit
75188 or equivalent |
|
|
|
INPUT |
| OUTPUT | |
OUTPUT |
| +3V | +9V |
|
|
| |
|
|
| |
45ns | 55ns |
|
Note: The above signal level is for the case where 3KΩ x 15pF is being connected to the terminal.
6)Communications protocol
a)READY/BUSY protocol
b)
40930701TH DRAFT Vesion | 190 / |