DS89C420_05 Datasheet, PDF (46/47 Pages) Maxim Integrated Products – Ultra-High-Speed Microcontroller

PIN CONFIGURATIONS
TOP VIEW
6
1
40
7
39
Dallas
Semiconductor
DS89C420
17
18
PLCC
29
28
DS89C420 Ultra-High-Speed Microcontroller
TOP VIEW
33
23
34
Dallas
22
Semiconductor
DS89C420
44
12
1
11
TQFP
TOP VIEW
P1.0/T2
P1.1/T2EX
P1.2/RXD1
P1.3/TXD1
P1.4/INT2
P1.5/INT3
P1.6/INT4
P1.7/INT5
RST
P3.0/RXD0
P3.1/TXD0
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
VSS
1
40
2
39
3
38
4
37
5
36
6
35
7
34
8
33
9
32
10 DS89C420 31
11
30
12
29
13
28
14
27
15
26
16
25
17
24
18
23
19
22
20
21
DIP
VCC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA/VPP
ALE/PROG
PSEN
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
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