參數(shù)資料
型號: DS89C450-QNL
英文描述: Ultra-High-Speed Flash Microcontrollers
中文描述: 超高速閃存微控制器
文件頁數(shù): 20/48頁
文件大?。?/td> 656K
代理商: DS89C450-QNL
DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers
20 of 48
Figure 6. Memory Map (as shown for the DS89C430)
External
Data
Memory
8K x 8
Flash
Memory
(Program)
1K x 8
SRAM
Data OR
prog mem
addr from
400 - 7FF
128 Bytes
Indirect
Addressing
Bit Addressable
Bank 3
Bank 2
Bank 1
Bank 0
00
1F
20
2F
7F
80
128 Bytes SFR
FF
0000
1FFF
2000
3FFF
INTERNAL
MEMORY
03FF
0000
FFFF
FFFF
4000
0000
0000
03FF
External
Program
Memory
INTERNAL
REGISTERS
8K x 8
Flash
Memory
(Program)
Memory Configuration
As illustrated in
Figure 6
, the DS89C430 incorporates two 8kB flash areas for on-chip program memory and 1kB of
SRAM for on-chip data memory or a particular range (400–7FF) of “alternate” program memory space. The
DS89C440 incorporates two 16kB flash memories and 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.
相關PDF資料
PDF描述
DS89C430-DS89C450 Ultra-High-Speed Flash Microcontrollers
DS89C450 RES,Wirewound,301Ohms,1+/-% Tol,-20,20ppm-TC,4427-Case
DS907X SipStik Connectors
DS9090K 1-Wire Memory Evaluation Kit
DS9093A iButton Key Ring Mounts
相關代理商/技術參數(shù)
參數(shù)描述
DS89C450-QNL+ 功能描述:8位微控制器 -MCU Ultra-High-Speed Flash MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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DS89LV21TN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver
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