GMS81508B HYNIX [Hynix Semiconductor], GMS81508B Datasheet - Page 71
GMS81508B
Manufacturer Part Number
GMS81508B
Description
HYUNDAI MICRO ELECTRONICS 8-BIT SINGLE-CHIP MICROCONTROLLERS
Manufacturer
HYNIX [Hynix Semiconductor]
Datasheet
1.GMS81508B.pdf
(100 pages)
- Current page: 71 of 100
- Download datasheet (2Mb)
GMS81508B/16B/24B
is external pull-down register, it is set to low.
68
OUTPUT PIN
Weak pull-up current flows
In the left case, much current flows from port to GND.
ON
OFF
INPUT PIN
X
V
X
DD
i
i
GND
GND
internal
pull-up
Figure 18-3 Application Example of Unused Output Port
Figure 18-2 Application Example of Unused Input Port
ON
OFF
ON
OFF
V
V
DD
DD
O
O
OPEN
V
O
O
DD
V
OPEN
DD
OUTPUT PIN
ON
OFF
X
In the left case, Tr. base current flows from port to GND.
To avoid power consumption, there should be low output
to the port.
INPUT PIN
When port is configure as an input, input level should
be closed to 0V or 5V to avoid power consumption.
Very weak current flows
i
X
i
GND
L
V
OPEN
HYUNDAI MicroElectronics
DD
DEC. 1999 Ver 1.04
OFF
ON
O
i=0
i=0
i=0
GND
O
O
L
V
DD
V
DD
GND
Related parts for GMS81508B
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
GL6965Telephone Speech Network with Dialer Interface
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
GL6962Low Voltage Universal Speech Network
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
ROM/RAM size: 2 K/128 bytes, 2-5.5 V , 4-8 MHz,8-bit single-chip microcontroller
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
GL6551COMPANDER
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
ROM/RAM size:2 Kb/128 bytes,4.25-5.5 V, 12 MHz, 8-bit microcontroller
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
Asynchronous communication element with FIFO
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
256K x 1-Bit CMOS DRAM
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
128M(4Mx32) GDDR SDRAM
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Hynix Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Hynix Semiconductor
Datasheet: