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參數(shù)資料
| 型號(hào)： | DS87C550-QNL |
| 英文描述： | EPROM High-Speed Micro with A/D and PWM |
| 中文描述： | 存儲(chǔ)器高速微與A / D及PWM |
| 文件頁數(shù)： | 1/50頁 |
| 文件大?。?/td> | 763K |
| 代理商： | DS87C550-QNL |
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FEATURES
§
87C52-Compatible
-
8051 pin- and instruction set-compatible
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Three 16-bit timer/counters
-
256 bytes scratchpad RAM
§
On-chip Memory
-
8 kbytes EPROM (OTP & Windowed Packages)
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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
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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
Available in 68-pin PLCC, 80-pin PQFP, and
68-pin windowed CLCC
PIN ASSIGNMENT
DS87C550
EPROM High-Speed
Micro with A/D and PWM
PRODUCT PREVIEW
www.dalsemi.com
9
1
61
27
43
10
26
60
44
68-Pin PLCC
68-Pin WINDOWED CLCC
DALLAS
DS87C550
1
24
64
41
40
25
65
80
DALLAS
DS87C550
80-Pin PQFP
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