Chapter 2. GMS37XXX
Pin Description
Pin
VDD
GND
I/O
Function
Connected to 2.0~ 3.6V power supply
-
-
Connected to 0V power supply.
4-bit input port with built in pull-up resistor.
Input
K0 ~ K3
STOP mode is released by "L" input of each pin. ( masked option)
Each can be set and reset independently.
D0 ~ D9
R0 ~ R3
Output
I/O
The output is the structure of N-channel-open-drain.
4-bit I/O port. (Input mode is set only when each of them output "H".)
In outputting, each can be set and reset independently(or at once.)
The output is in the form of C-MOS.
Pull-up resistor and STOP release mode can be respectively selected
as masked option for each pin. (It is released by "L" input at STOP)
Oscillator input. Input to the oscillator circuit and connection point for
ceramic resonator.
OSC1
Input
Internal capacitors available at kHz version.
A feedback resistor is internally connected between this pin and OSC2.
OSC2
Output
Output
Connect a resonator between this pin and OSC1.
High current output port. The output is in the form of CMOS.
The state of large current on is "H".
REMOUT
2-4
HYNIX [ HYNIX SEMICONDUCTOR ]
