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DS87C520-ECL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
- 产品编号:
DS87C520-ECL
- 制造商:
Analog Devices Inc./Maxim Integrated
- 类别:
集成电路(IC) > 微控制器
- 系列:
87C
- 包装:
管件
- 核心处理器:
8051
- 内核规格:
8 位
- 速度:
33MHz
- 连接能力:
EBI/EMI,SIO,UART/USART
- 外设:
电源故障复位,WDT
- 程序存储容量:
16KB(16K x 8)
- 程序存储器类型:
OTP
- RAM 大小:
1K x 8
- 电压 - 供电 (Vcc/Vdd):
4.5V ~ 5.5V
- 振荡器类型:
外部
- 工作温度:
0°C ~ 70°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
44-TQFP
- 供应商器件封装:
44-TQFP(10x10)
- 描述:
IC MCU 8BIT 16KB OTP 44TQFP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
DALLAS/MAXIM |
22+ |
44-TQFP |
2000 |
全新原装品牌专营 |
询价 | ||
DALLAS |
23+ |
QFP |
98900 |
原厂原装正品现货!! |
询价 | ||
MAXIM/美信 |
23+ |
TQFP-44 |
30000 |
原装正品公司现货,假一赔十! |
询价 | ||
Dallas |
23+ |
44-TQFP |
6672 |
询价 | |||
MAXIM |
23+ |
TQFP |
8888 |
专做原装正品,假一罚百! |
询价 | ||
DALLAS |
2405+ |
原厂封装 |
12500 |
15年芯片行业经验/只供原装正品:0755-83267371邹小姐 |
询价 | ||
- |
23+ |
NA |
10000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | ||
MAXIM |
21+ |
TQFP-44 |
6000 |
原装现货 |
询价 | ||
DALLAS |
1948+ |
TQFP-44 |
6852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
Maxim(美信) |
2021/2022+ |
标准封装 |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 |