Pioneer KEH-M5500 UC Service Manual page 22

PD4285
@ Pin Functions (PD4285)
K00
GND
KSTO—KST2
CL2
CLI
Vo0
RESET
KOI—KD4
KST3, KST4
NC
REMOUT
V8
24
Qutput Format
Qutput
Format
INPUT
OUTPUT
INPUT
INPUT
OUTPUT | NM
OUTPUT | NM
Middle resistivity
N channel open drain
Function and Operation
Key return input
GND
Key strobe output
System clock generator connector pin
System clock generator connector pin
Reset input
Key return input
Key strobe output
Remote controller data output
GND