MAX6902(2003) 查看數據表（PDF） - Maxim Integrated

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MAX6902
(Rev.:2003)

SPI-Compatible RTC in a TDFN

Maxim Integrated 

SPI-Compatible RTC in a TDFN

CS

SCLK

DIN

0 R* 1 1 1 1 1 1

ADDRESS/COMMAND BYTE**

D7 D6 D5 D4 D3 D2 D1 D0

DATA BYTE 1

DOUT

HIGH IMPEDANCE; NO ACTIVITY ON DOUT LINE DURING WRITES.

* R = RAM/REGISTER SELECT BIT; RAM = 1, REGISTER = 0.

** ONLY ONE ADDRESS/COMMAND BYTE IS REQUIRED PER BURST TRANSACTION.

Figure 3b. Burst Write

D7 D6 D5 D4 D3 D2 D1 D0

DATA BYTE N

CS

SCLK

DIN

1

DOUT

R* A5 A4 A3 A2 A1 1

ADDRESS/COMMAND BYTE

HIGH IMPEDANCE

* R = RAM/REGISTER SELECT BIT; RAM = 1, REGISTER = 0.

Figure 4a. Single Read

D7 D6 D5 D4 D3 D2 D1 D0

DATA BYTE

CS

SCLK

DIN

1 R* 1

1

1

1

1

1

ADDRESS/COMMAND BYTE**

DOUT

HIGH IMPEDANCE

* R = RAM/REGISTER SELECT BIT; RAM = 1, REGISTER = 0.

** ONLY ONE ADDRESS/COMMAND BYTE IS REQUIRED PER BURST TRANSACTION.

Figure 4b. Burst Read

D7 D6 D5 D4 D3 D2 D1 D0

DATA BYTE 1

D7 D6

D5 D4 D3 D2

DATA BYTE N

D1 D0

12 ______________________________________________________________________________________

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