Olivetti PG L22 Special, Service Manual, Page: 98 / 165

Y103920-3 Service Manual
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4) Signal Level
• INPUT
Low : 0 V to +0.4 V
High : +2.4 V to 5.0 V
• OUTPUT
Low : 0 V to +0.4 V
High : +2.0 V to 5.0 V
5) Specifications
Item Description
Mode
Data bit length
Input prime
Receive buffer
Control
Compatibility mode, Nibble mode, ECP mode
8 bits (in the compatibility mode)
Valid/Invalid
0.1M, 0.2M, 0.5M Bytes
Handshaking control is performed in each mode.
Data received from the host is stored in the receive buffer.
Busy control is performed.
Signal lead control is performed.
6) Interface circuit
a) Receiving circuit
LVC161284
b) Sending circuit
LVC161284
c) Other
+5V
35Pin