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DS87C520-QCL中文资料PDF规格书
DS87C520-QCL规格书详情
DESCRIPTION
The DS87C520/DS83C520 EPROM/ROM high-speed microcontrollers are fast 8051-compatible microcontrollers. They feature a redesigned processor core without wasted clock and memory cycles. As a result, the devices execute every 8051 instruction between 1.5 and 3 times faster than the original for the same crystal speed. Typical applications will see a speed improvement of 2.5 times using the same code and the same crystal. The DS87C520/DS83C520 offer a maximum crystal speed of 33MHz, resulting in apparent execution speeds of 82.5MHz (approximately 2.5X).
FEATURES
■ 80C52 Compatible
8051 Pin- and Instruction-Set Compatible
Four 8-Bit I/O Ports
Three 16-Bit Timer/Counters
256 Bytes Scratchpad RAM
■ Large On-Chip Memory
16kB Program Memory
1kB Extra On-Chip SRAM for MOVX
■ ROMSIZE Feature
Selects Internal ROM Size from 0 to 16kB
Allows Access to Entire External Memory Map
Dynamically Adjustable by Software
Useful as Boot Block for External Flash
■ High-Speed Architecture
4 Clocks/Machine Cycle (8051 = 12)
Runs DC to 33MHz Clock Rates
Single-Cycle Instruction in 121ns
Dual Data Pointer
Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals
■ Power Management Mode
Programmable Clock Source to Save Power
CPU Runs from (crystal/64) or (crystal/1024)
Provides Automatic Hardware and Software Exit
■ EMI Reduction Mode Disables ALE
■ Two Full-Duplex Hardware Serial Ports
■ High Integration Controller Includes:
Power-Fail Reset
Early-Warning Power-Fail Interrupt
Programmable Watchdog Timer
■ 13 Interrupt Sources with Six External
■ Available in 40-pin PDIP, 44-Pin PLCC, 44-Pin TQFP, and 40-Pin Windowed CERDIP
■ Factory Mask DS83C520 or EPROM (OTP) DS87C520
产品属性
- 型号:
DS87C520-QCL
- 功能描述:
8位微控制器 -MCU EPROM/ROM High-Speed
- RoHS:
否
- 制造商:
Silicon Labs
- 核心:
8051
- 处理器系列:
C8051F39x
- 数据总线宽度:
8 bit
- 最大时钟频率:
50 MHz
- 程序存储器大小:
16 KB 数据 RAM
- 大小:
1 KB 片上
- ADC:
Yes
- 工作电源电压:
1.8 V to 3.6 V
- 工作温度范围:
- 40 C to + 105 C
- 封装/箱体:
QFN-20
- 安装风格:
SMD/SMT
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
DALLAS |
23+ |
NA/ |
120 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
MAXIM |
21+ |
PLCC44 |
5000 |
原装现货/假一赔十/支持第三方检验 |
询价 | ||
MAXIM |
23+ |
PLCC |
8888 |
专做原装正品,假一罚百! |
询价 | ||
DALLAS |
23+ |
PLCC |
1800 |
专业优势供应 |
询价 | ||
2023+ |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||||
PHILIPS/飞利浦 |
2048+ |
PLCC |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
DALLAS |
2022 |
PLCC-44 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
DALLAS |
1948+ |
PLCC44 |
6852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
MAXIM |
23+ |
PLCC-44 |
3000 |
全新原装、诚信经营、公司现货销售 |
询价 | ||
DALASL |
23+ |
PLCC |
65480 |
询价 |