AT89LP4052-20PI datasheet(67/90 Pages) ATMEL

tên linh kiện	AT89LP4052-20PI

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 2/4-Kbyte Flash

PDF	90 Pages

Scroll/Zoom	100%

nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

Logo

67 / 90 page

3547F–MICRO–6/06

AT89LP2052/LP4052

22.4.13

Write User Fuses

Function:

• Program User Fuses.

• Unimplemented bits should always be written with 1s.

Usage:

Bring CS (P3.2) low.

Drive P1 to AAh and pulse XTAL1 high.

Drive P1 to E1h and pulse XTAL1 high.

Drive P1 to 00h and pulse XTAL1 high.

Drive data on P1 and pulse XTAL1 high.

Drive CS high.

Wait 4 ms, monitor P3.1, or poll data/status.

Figure 22-17. Write User Fuses Sequence

22.4.14

Read User Fuses

Function:

• Read status of User Fuses

Usage:

Bring CS (P3.2) low.

Drive P1 to 0xAA and pulse XTAL1 high.

Drive P1 to 0x61 and pulse XTAL1 high.

Drive P1 to 0x00 and pulse XTAL1 high.

Drive P1 to 0x00 and bring XTAL1 high.

Tri-state P1.

Bring XTAL1 low.

Read data from P1.

Drive CS high.

Figure 22-18. Read User Fuses Sequence

Note:

The waveforms on this page are not to scale.

AAh

E1h

00h

1111FFFF

XTAL1

RDY/BSY

AAh

61h

00h

1111FFFF

XTAL1

AT89LP4052-20PI bảng dữ liệu(PDF) 67 Page - ATMEL Corporation

AT89LP4052-20PI bảng dữ liệu(HTML) 67 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90

bảng dữ liệu tải về

Link URL