User's Manual

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SPR-8695TUH USB 2.0 HUB KBD
1.7.2 KEYBOARD
1.8. BLOCK Diagram
GND
GND
68HC908 USB KBD
controller
2wire I/F
NUM SCR
3.3V
3.3V
Regulator
USB 2.0 HUB
D-
Indicator LEDs
16x8 Key Matrix
Switch
Serial EEPROM
SPR-8695TUH Keyboard Block Diagram
3 wire
CAP
8 wire
D-
D+
D+
A Type USB
connector
24MHz
+5V
6MHz
+5V
D- D+ D-
Two USB
downstream Port
16 wire D+
+5V
GND
Controlled +5V Power
Power Control
Circuitary
Power control