DS89C430-DS89C450 Dallas Semiconducotr, DS89C430-DS89C450 Datasheet - Page 44

• Manufacturer Part Number: DS89C430-DS89C450
• Description: Ultra-High-Speed Flash Microcontrollers
• Manufacturer: Dallas Semiconducotr

PIN CONFIGURATIONS
REVISION HISTORY
111003
032204
060204
DATE
TOP VIEW
34
44
New product release.
DC Electrical Characteristics table: Corrected typo—Under Supply Current for Active and Idle Mode,
changed Units from “mA” to “mA.”
Note 15: Changed number of external clock cyles per system clock and minimum external clock
speeds.
Flash Memory Programming Characteristics table: Removed Note 20 (room temperature only) from the
Data Retention parameter.
Changed Write/Erase Endurance parameter from 20,000 cycles to 10,000 cycles.
Removed original Table 5. Parallel Programming Instruction Set, and replaced it with a paragraph
introducing the subject and advising interested parties to contact the factory for more information.
Clarified IAP programming sequence.
17
7
18
6
33
1
DS89C430
DS89C440
DS89C450
DS89C430
DS89C440
DS89C450
PLCC
TQFP
1
1
23
28
40
39
29
22
12
44 of 47
DESCRIPTION
P1.2/RXD1
P3.0/RXD0
P1.1/T2EX
P1.3/TXD1
P3.1/TXD0
P1.4/INT2
P1.5/INT3
P1.6/INT4
P1.7/INT5
P3.2/INT0
P3.3/INT1
P3.6/WR
P3.7/RD
P1.0/T2
P3.4/T0
P3.5/T1
XTAL2
XTAL1
RST
VSS
10
11
12
13
14
15
16
18
19
20
9
1
2
3
4
5
6
7
8
DS89C430
DS89C440
DS89C450
PDIP
39
38
37
36
35
34
33
32
29
28
27
26
25
24
23
22
21
40
31
30
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA/VPP
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
VCC
ALE/PROG
PSEN