FLOPPY DISK DRIVE SPECIFICATION
PAGE | 16 |
|
|
MODEL |
|
|
|
5.SIGNAL CHARACTERISTICS
5.1Signal Level
Signal Logic | Input Level | Output Level (*1) | ||
|
|
|
|
|
Low (True) | 0.9 | V Max. | 0.4 | V Max. |
|
|
|
|
|
High (False) | 2.2 | V Min. | 2.4 | V Min. |
|
|
|
|
|
<Note>
(*1) "LOW" level Max. sink current is 48 mA.
5.2 Recommended Interface Circuit
HOST SIDE
7438 SERIES CMOS OR EQUIVALENT
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| FDD SIDE |
|
|
|
|
|
|
|
|
|
|
|
|
| Vdd | ||||||||
(1 ㏀ ) |
|
|
|
| CMOS | ||||
|
|
|
| ||||||
|
|
|
| ||||||
|
|
|
| (SCHMITT TRIGGER INPUT) | |||||
|
|
|
|
| |||||
| INPUT |
Vdd |
|
150 Ω∼2.2 | ㏀ |
(1 ㏀ is recommended) | |
| OUTPUT |
74LS14 | OPEN DRAIN |
74HC14 OR |
|
EQUIVALENT |
|
| FRAME GND |
SEMA ELECTRONICS CO.,LTD
