3. Input / Output signal specifications
Table 
| Item | Condition | 
 | Rate Value | 
 | Unit | ||
| Min | 
 | Typ. | 
 | Max | |||
| 
 | 
 | 
 | 
 | 
 | |||
| High input voltage | !RESET | 1.76 | 
 | − | 
 | 5.5 | V | 
| Low input voltage | !RESET | 0 | 
 | − | 
 | 1.44 | V | 
| High input voltage | DATA0 to 7, !STROBE, | 3.15 | 
 | − | 
 | 5.5 | V | 
| !FEED_IN, NEAR_C | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| Low input voltage | DATA0 to 7, !STROBE, | 0 | 
 | − | 
 | 1.35 | V | 
| !FEED_IN, NEAR_C | 
 | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| High input voltage | RXD, CTS | +2.8 | 
 | − | 
 | +15 | V | 
| Low input voltage | RXD, CTS | −15 | 
 | − | 
 | −2.8 | V | 
| High output voltage | BUSY, !ACK, !ERROR, | 4.75 | 
 | − | 
 | 5.1 | V | 
| SEL OUT, PE, NEAR_OUT | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| Low output voltage | BUSY, !ACK, !ERROR, | 0 | 
 | − | 
 | 0.5 | V | 
| SEL OUT, PE, NEAR_OUT | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| High output voltage | TXD, RTS | +5 | 
 | +9 | 
 | +15 | V | 
| ( RL = 3 KΩ) | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| Low output voltage | TXD, RTS | −15 | 
 | −9 | 
 | −5 | V | 
| ( RL = 3 KΩ) | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | |