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DS87C550-QCL中文资料PDF规格书
DS87C550-QCL规格书详情
DESCRIPTION
The DS87C550 EPROM High-Speed Micro with A/D and PWM is a member of the fastest 100 8051-compatible microcontroller family available. It features a redesigned processor core that removes wasted clock and memory cycles. As a result, it executes 8051 instructions up to three times faster than the original architecture for the same crystal speed. The DS87C550 also offers a maximum crystal speed of 33 MHz, resulting in apparent execution speeds of up to 99 MHz.
FEATURES
■ 87C52-Compatible
- 8051 pin- and instruction set-compatible
- Three 16-bit timer/counters
- 256 bytes scratchpad RAM
■ On-chip Memory
- 8 kbytes EPROM (OTP & Windowed Packages)
- 1 kbyte extra on-chip SRAM for MOVX access
■ On-chip Analog to Digital Converter
- Eight channels of analog input, 10-bit resolution
- Fast conversion time
- Selectable internal or external reference voltage
■ Pulse Width Modulator Outputs
- Four channels of 8-bit PWM
- Channels cascadable to 16-bit PWM
■ 4 Capture + 3 Compare Registers
■ 55 I/O Port Pins
■ New Dual Data Pointer Operation
- Either data pointer can be incremented or
decremented
■ ROMSIZE Feature
- Selects effective on-chip ROM size from 0 to 8k
- Allows access to entire external memory map
- Dynamically adjustable by software
■ High-Speed Architecture
- 4 clocks/machine cycle (8051 = 12)
- Runs DC to 33 MHz clock rates
- Single-cycle instruction in 121 ns
- New Stretch Cycle feature allows access to
fast/slow memory or peripherals
■ Unique Power Savings Modes
■ EMI Reduction Mode disables ALE when not
needed
■ High integration controller includes:
- Power-fail reset
- Early-warning power-fail interrupt
- Two full-duplex hardware serial ports
- Programmable watchdog timer
■ 16 total interrupt sources with 6 external
产品属性
- 型号:
DS87C550-QCL
- 制造商:
DALLAS
- 制造商全称:
Dallas Semiconductor
- 功能描述:
EPROM High-Speed Micro with A/D and PWM
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
DALLAS |
05+ |
原厂原装 |
4257 |
只做全新原装真实现货供应 |
询价 | ||
DALLAS/M |
23+ |
DALLASM |
9960 |
价格优势/原装现货/客户至上/欢迎广大客户来电查询 |
询价 | ||
MAXIM |
22+ |
PLCC |
2000 |
全新原装品牌专营 |
询价 | ||
DALLAS |
23+ |
NA/ |
3345 |
原装现货,当天可交货,原型号开票 |
询价 | ||
DALLAS |
21+ |
PLCC68 |
737 |
原装现货假一赔十 |
询价 | ||
DALLAS/M |
23+ |
DALLAS/M |
3100 |
绝对全新原装!优势供货渠道!特价!请放心订购! |
询价 | ||
Analog Devices |
QQ咨询 |
68-LCC |
5000 |
原装正品/微控制器元件授权代理直销! |
询价 | ||
DALLAS |
20+ |
PLCC44 |
67500 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
DALLAS |
21+ |
PLCC68 |
5000 |
原装现货/假一赔十/支持第三方检验 |
询价 | ||
DALLAS |
1844+ |
PLCC |
6528 |
只做原装正品假一赔十为客户做到零风险!! |
询价 |