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参数资料
| 型号： | DS87C520-WCL |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/43页 |
| 文件大小： | 0K |
| 描述： | IC MCU EPROM/ROM 33MHZ HS 40CDIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 10 |
| 系列： | 87C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 33MHz |
| 连通性： | EBI/EMI，SIO，UART/USART |
| 外围设备： | 电源故障复位，WDT |
| 输入/输出数： | 32 |
| 程序存储器容量： | 16KB（16K x 8） |
| 程序存储器类型： | EPROM，UV |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 40-CDIP（0.600"，15.24mm）窗口 |
| 包装： | 管件 |
| 其它名称： | DS87C520WCL |
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REV: 022207
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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
PIN CONFIGURATIONS
DS87C520/DS83C520
EPROM/ROM High-Speed Microcontrollers
www.maxim-ic.com
TOP VIEW
The High-Speed Microcontroller User’s Guide must be used in
conjunction with this data sheet. Download it at:
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