X5043 데이터 시트보기 (PDF) - Intersil

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X5043

CPU Supervisor with 4K SPI EEPROM

Intersil 

X5043, X5045

WREN CMD

(WEL)

0

x

1

DEVICE PIN (WP)

x

0

1

TABLE 2. DEVICE PROTECT MATRIX

MEMORY BLOCK

PROTECTED AREA

UNPROTECTED AREA

Protected

Protected

Protected

Protected

Protected

Writable

STATUS REGISTER

(BL0, BL1, WD0, WD1)

Protected

Protected

Writable

CS

SCK

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

Instruction

SI

High Impedance

SO

Data Out

76543210

MSB

FIGURE 6. READ STATUS REGISTER SEQUENCE

CS

SCK

SI

SO

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

Instruction

Data Byte

7 6 5 43 2 1 0

High Impedance

FIGURE 7. WRITE STATUS REGISTER SEQUENCE

10

FN8126.1

September 16, 2005

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