GMS81C2012 Datasheet, PDF (90/107 Pages) Hynix Semiconductor – HYUNDAI MICRO ELECTRONICS 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C2012/GMS81C2020
HYUNDAI MicroElectronics
64SDIP
R40
1
64
RA/Vdisp
R41
2
63
R35
R42
3
62
R34
R43
4
61
R33
R50
5
60
R32
R51
6
59
R31
CTL3
R52
7
R53
8
58
R30
57
R27
CTL2
R54
9
56
R26
CTL1
R55
10
55
R25
CTL0
R56
11
54
R24
R57
12
53
R23
VPP
RESET
13
52
R22
EPROM Enable
XI
14
51
R21
XO
15
50
R20
VSS
VSS
16
49
R17
SXI
17
48
R16
SXO
18
47
R15
AVSS
19
46
R14
A_D0
R60
20
45
R13
A_D1
R61
21
44
R12
A_D2
R62
22
43
R11
A_D3
R63
23
42
R10
A_D4
R64
24
41
R07
A_D5
R65
25
40
R06
A_D6
R66
26
39
R05
A_D7
R67
27
38
R04
R70
28
37
R03
R71
29
36
R02
R72
30
35
R01
R73
31
34
R00
AVDD
32
33
VDD
VDD
Figure 21-2 Pin Assignment (64SDIP)
Pin No.
8
9
10
11
13
14
15
16
20
21
22
23
24
25
26
27
33
User Mode
Pin Name
R53
R54
R55
R56
RESET
XIN
XOUT
VSS
R60
R61
R62
R63
R64
R65
R66
R67
VDD
EPROM MODE
Pin Name
Description
CTL3
Read/Write Control
P_Vb
CTL2
Address/Data Control
D_Ab
CTL1
Write Control 1
CTL0
Write Control 0
VPP
Programming Power (0V, 12V)
EPROM Enable High Active, Latch Address in falling edge
NC
No connection
VSS
Connect to VSS (0V)
A_D0
A8
A0
D0
A_D1
A_D2
Address Input
Data Input/Output
A9
A1
D1
A10
A2
D2
A_D3
A11
A3
D3
A_D4
A12
A4
D4
A_D5
A_D6
Address Input
Data Input/Output
A13
A5
D5
A14
A6
D6
A_D7
A15
A7
D7
VDD
Connect to VDD (6.0V)
Table 21-1 Pin Description in EPROM Mode (GMS81C2020)
90
MAR. 2000 Ver 1.00