GMS34004 Datasheet, PDF (53/105 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 4. Evaluation Board
Caution on Operation
• It is required to install a 24DIP IC socket in the application system. The
connection cable is connected to the socket.
• There is a possibility that the ceramic oscillator on the application system cannot
oscillate properly due to the influence of connection cable wiring capacitor or other
reasons. In such a case, install the oscillator on the evaluation board.
• Since the GMS 30000 EVA is designed to evaluate the program operations, there
is a case where the AC and DC characteristics differ from those of the mass-
produced chips
H ^S3 L
U ^S5 X
U ^S6 X
M ^JP K
1
28
Connector
H
S1
RSR0
RSR1
RSR2
GND
RSR3
RPU0
RPU1
RPU2
RPU3
KSR0
KSR1
KSR2
KSR3
L
H ^S4 L
M ^S7 K
M ^S8 K
80
1
EVA
(80QFP)
GSEN
EVA30000
USER
T2
T1
Connector
(24Pin Socket)
GND
CX3
CX2
X1
X0
AC3
AC2
AC1
AC0
Y3
Y2
Y1
Y0
WDTR
REM DATA
S2 ^H
M1
L
S1 _BKPOINT
WDTM
DSC7
DSC6
DSC5
DSC4
DSC3
DSC2
DSC1
DSC0
H
L
Fig 4-1 Layout Diagram
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