參數(shù)資料
型號(hào)： CDP1805AC
廠商： Intersil Corporation
元件分類： 8位微控制器
英文描述： CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
中文描述： 的CMOS 8位微處理器與片內(nèi)RAM和計(jì)數(shù)器/定時(shí)器
文件頁(yè)數(shù)： 7/30頁(yè)
文件大?。?/td> 301K
代理商： CDP1805AC
7
Timing Waveforms For Possible Operating Modes
NOTE:
8. ME has a minimum setup and hold time with respect to the beginning of clock 70. For a memory read operation, RAM data will appear on
the data bus during the time ME is active after clock 31. The time shown can be longer, if for instance, a DMA out operation is performed
on internal RAM data, to allow data enough time to be latched into an external device. The internal RAM is automatically deselected at
the end of clock 71 independent of ME.
For CDP1805AC only.
FIGURE 3. INTERNAL MEMORY OPERATION TIMING WAVEFORMS
NOTE:
For CDP1805AC only.
FIGURE 4. EXTERNAL MEMORY OPERATION TIMING WAVEFORMS
00
10
20
30
40
50
60
70
00
10
20
30
40
50
60
70
01
11
21
31
41
51
61
71
01
11
21
31
41
51
61
71
CLOCK
TPA
TPB
MEMORY
ADDRESS
MRD
MWR
ME
IN
DATA
BUS
HIGH BYTE
LOW BYTE
HIGH BYTE
LOW BYTE
VALID DATA FROM MEMORY
VALID DATA FROM CPU
INTERNAL RAM READ CYCLE
INTERNAL RAM WRITE CYCLE
00
10
20
30
40
50
60
70
00
10
20
30
40
50
60
70
CLOCK
TPA
TPB
MRD
MWR
ME IN
(HIGH)
DATA
BUS
01
11
21
31
41
51
61
71
01
11
21
31
41
51
61
71
MEMORY
ADDRESS
HIGH BYTE
LOW BYTE
LOW BYTE
HIGH BYTE
DATA LATCHED IN CPU
VALID DATA FROM CPU
EXTERNAL MEMORY READ CYCLE
EXTERNAL MEMORY WRITE CYCLE
CDP1805AC, CDP1806AC
相關(guān)PDF資料
PDF描述
CDP1805ACD CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACDX CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACE CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACQ CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1806AC CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDP1805ACD 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACDX 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACE 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
CDP1805ACH DIE 制造商:Harris Corporation 功能描述:
CDP1805ACQ 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 8-Bit Microprocessor with On-Chip RAM and Counter/Timer
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