HMS77C1000A Datasheet, PDF (43/45 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

HMS77C1000A/HMS77C1001A
OUTPUT PIN
ON
OFF _i
GND
X
ON
OPEN
OFF
O
V_DD
ON
OFF
O
In the left case, much current flows from port to GND.
OUTPUT PIN
ON
V_DD
L
OFF _i
GND
OFF
V_DD
L
ON i=0
GND
X
O
In the left case, Tr. base current flows from port to GND.
To avoid power consumption, there should be low output
to the port.
FIGURE 16-4 APPLICATION EXAMPLE OF UNUSED OUTPUT PORT
40
Oct. 2001 Ver. 2.0