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AT89LP4052-20PI Datasheet(PDF) 68 Page - ATMEL Corporation

Part # AT89LP4052-20PI
Description  8-bit Microcontroller with 2/4-Kbyte Flash
PDF  90 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP4052-20PI Datasheet(HTML) 68 Page - ATMEL Corporation

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68
3547F–MICRO–6/06
AT89LP2052/LP4052
22.4.15
Read Status
Function:
• Read memory status byte.
Usage:
1.
Bring CS (P3.2) low.
2.
Drive P1 to 0xAA and pulse XTAL1 high.
3.
Drive P1 to 0x60 and pulse XTAL1 high.
4.
Drive P1 to 0x00 and pulse XTAL1 high.
5.
Drive P1 to 0x00 and bring XTAL1 high.
6.
Tri-state P1.
7.
Bring XTAL1 low.
8.
Read data from P1.
9.
Drive CS high.
Figure 22-19. Read Status Sequence
Note:
The waveform on this page is not to scale.
AAh
60h
00h
00h
1111SSSS
CS
XTAL1
P1



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