DS87C520ENL - Brand New Microcontrollers
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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 -
Similar parts: 10206 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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Payment:
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Popular parts of the same kind
- Datasheet: Download DS87C520ENL
- Chipdatas Part: CD94-DS87C520ENL
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/24 03:09 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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Free shipping without minimum order.
