AT25640B(2010) データシートの表示（PDF） - Atmel Corporation

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AT25640B
(Rev.:2010)

SPI Serial EEPROMs 32K (4096 x 8) 64K (8192 x 8)

Atmel Corporation 

Atmel AT25320B/640B

Figure 4-4. RDSR Timing

CS

SCK

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

SI

INSTRUCTION

SO

HIGH IMPEDANCE

Figure 4-5. WRSR Timing

CS

DATA OUT

76543210

MSB

SCK

SI

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

INSTRUCTION

DATA IN

76543210

HIGH IMPEDANCE

SO

Figure 4-6. READ Timing

CS

SCK

SI

SO

0 1 2 3 4 5 6 7 8 9 10 11 20 21 22 23 24 25 26 27 28 29 30

INSTRUCTION

BYTE ADDRESS

15 14 13 ... 3 2 1 0

HIGH IMPEDANCE

DATA OUT

76543210

MSB

11

8535F–SEEPR–6/10

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