DS89C430-QNG+ Maxim Integrated Products, DS89C430-QNG+ Datasheet - Page 20
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DS89C430-QNG+
Manufacturer Part Number
DS89C430-QNG+
Description
IC MCU FLASH 16KB 25MHZ 44-PLCC
Manufacturer
Maxim Integrated Products
Series
89Cr
Datasheet
1.DS89C450-KIT.pdf
(46 pages)
Specifications of DS89C430-QNG+
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SIO, UART/USART
Peripherals
Power-Fail Reset, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-LCC, 44-PLCC
Processor Series
DS89C430
Core
8051
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
UART
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
4
Number Of Timers
3
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
Package
44PLCC
Device Core
8051
Family Name
89C
Maximum Speed
33 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Figure 6. Memory Map (as shown for the DS89C430)
Memory Configuration
As illustrated in
SRAM for on-chip data memory or a particular range (400–7FF) of “alternate” program memory space. The
DS89C450 incorporates two 32kB flash memories. The DS89C430 uses an address scheme that separates
program memory from data memory such that the 16-bit address bus can address each memory area up to
maximum of 64kB.
FF
80
7F
2F
20
1F
00
Bit Addressable
128 Bytes
Indirect
Addressing
Bank 3
Bank 2
Bank 1
Bank 0
128 Bytes SFR
REGISTERS
Figure
INTERNAL
6, the DS89C430 incorporates two 8kB flash areas for on-chip program memory and 1kB of
03FF
0000
3FFF
2000
1FFF
0000
INTERNAL
MEMORY
(Program)
prog mem
addr from
Memory
(Program)
400 - 7FF
8K x 8
Data OR
Memory
8K x 8
SRAM
Flash
1K x 8
Flash
DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
20 of 46
FFFF
4000
0000
External
Program
Memory
FFFF
03FF
0000
External
Data
Memory