參數(shù)資料
型號(hào)： DS89C420-QCL
英文描述： Ultra-High-Speed Microcontroller
中文描述： 超高速微控制器
文件頁(yè)數(shù)： 1/59頁(yè)
文件大小： 539K
代理商： DS89C420-QCL
1 of 59
103102
Note:
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata
.
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GENERAL DESCRIPTION
The DS89C420 offers the highest performance
available in 8051-compatible microcontrollers. It
features a redesigned processor core that executes
every 8051 instruction (depending on the instruction
type) up to 12 times faster than the original for the
same crystal speed. Typical applications see a speed
improvement of 10 times using the same code and
crystal. The DS89C420 offers a maximum crystal
speed of 33MHz, achieving execution rates up to 33
million instructions per second (MIPS).
APPLICATIONS
Data Logging
Vending
Automotive Test Equipment
Motor Control
Magstripe Reader/Scanner
Consumer Electronics
Gaming Equipment
Appliances (Washers, Microwaves, etc.)
Telephones
HVAC
Building Security and Door Access Control
Building Energy Control and Management
Uninterruptible Power Supplies
Programmable Logic Controllers
Industrial Control and Automation
ORDERING INFORMATION
PART
TEMP RANGE
MAX.
CLOCK
SPEED
(MHz)
PIN-PACKAGE
DS89C420
-
MCL
0°C to +70°C
33
40 PDIP
DS89C420-
QCL
0°C to +70°C
33
44 PLCC
DS89C420-
ECL
0°C to +70°C
33
44 TQFP
Ordering information continued at end of data sheet.
FEATURES
80C52 Compatible
8051 Pin and Instruction-Set Compatible
Four Bidirectional I/O Ports
Three 16-Bit Timer Counters
256 Bytes Scratchpad RAM
On-Chip Memory
16kB Flash Memory
In-System Programmable through Serial Port
1kB SRAM for MOVX
ROMSIZE Feature
Selects Internal Program Memory Size from
0 to 16k
Allows Access to Entire External Memory
Map
Dynamically Adjustable By Software
See page 2 for a complete list of features.
PIN CONFIGURATIONS
www.maxim-ic.com
DS89C420
Ultra-High-Speed Microcontroller
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
ALE/PROG
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
17
18
19
20
DS89C420
DIP
TOP VIEW
Pin Configurations continued at end of data sheet.
相關(guān)PDF資料
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