Rainbow Electronics DS89C450 - Manual (Page 45)

DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers
45 of 48
PIN CONFIGURATIONS
REVISION HISTORY
DATE DESCRIPTION
111003 New product release.
6 1 40
18 28
7 39
17 29
DS89C430
DS89C440
DS89C450
PLCC
33 23
1 1
34 22
44 12
DS89C430
DS89C440
DS89C450
TQFP
TOP VIEW
ALE/ PROG
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
VCC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA/VPP
PSEN
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
DS89C430
DS89C440
DS89C450
PDIP