GMS90 Hynix Semiconductor, GMS90 Datasheet - Page 54

• Manufacturer Part Number: GMS90
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

Figure 13. PROG Waveform
Figure 14. Program Verification
50
In the GMS97X51/52
In the GMS97X54/56/58
ALE/PROG
Enlarged View
ALE/PROG
4~6MHz
A14
100 s 10
1
1
1
A0-A7
A8-A13
P1
P2.0
-P2.5
P3.4
RST
P3.6
P3.7
XTAL2
XTAL1
V
Min. 10 s
SS
ALE/PROG
10 PULSES
25 PULSES
100 s 10
EA/V
PSEN
P2.7
P2.6
V
P0
CC
PP
+5V
1
10k
1
0
0
1
PROGRAM DATA
Dec. 1998 Ver 3.0
GMS90 Series