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3. Input / Output signal specifications
Table 4-3 I/O Signal Specifications
Rate Value
Item Condition
Min Typ. Max
Unit
High input voltage !RESET 1.76 − 5.5 V
Low input voltage !RESET 0 − 1.44 V
High input voltage
DATA0 to 7, !STROBE,
!FEED_IN, NEAR_C
3.15
−
5.5 V
Low input voltage
DATA0 to 7, !STROBE,
!FEED_IN, NEAR_C
0
−
1.35 V
High input voltage RXD, CTS +2.8 − +15 V
Low input voltage RXD, CTS −15 − −2.8 V
High output voltage
BUSY, !ACK, !ERROR,
SEL OUT, PE, NEAR_OUT
4.75 − 5.1 V
Low output voltage
BUSY, !ACK, !ERROR,
SEL OUT, PE, NEAR_OUT
0 − 0.5 V
High output voltage
TXD, RTS
( RL = 3 KΩ)
+5
+9 +15 V
Low output voltage
TXD, RTS
( RL = 3 KΩ)
−15
−9 −5 V