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PPU-231 User’s Manual
29
CITIZEN
6.3.2 Electrical Characteristics
(1) Input signal level
All the input signals are at the TTL level.
High level --- 2.0 V at minimum
Low level --- 0.8 V at maximum
(2) Output signal level
All the output signals are at the TTL level.
High level --- 2.4 V at minimum
Low level --- 0.4 V at maximum
(3) Input and output conditions
The STROBE and RESET input signals are pulled up at 3.3kΩ, and the other input signals at 50kΩ,
respectively.
[Printer Side] [Host Side]
All the output signals are pulled up at 50kΩ.
[Printer Side] [Host Side]