Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsIntegrated Circuits (ICs)Timer IC t- real time clock Clock/calendar µSOP-10

DS1390–DS1394

Low-Voltage SPI/3-Wire RTCs with

Trickle Charger

22

Maxim Integrated

CS

SCLK

DIN

DOUT

HIGH-IMPEDANCE

ADDRESS

BYTE

ADDRESS

BYTE

DATA BYTE 0 DATA BYTE 1

DIN

DATA BYTE N

DATA

BYTE 0

DATA

BYTE 1

DATA

BYTE N

WRITE

READ

Figure 12. SPI Multiple-Byte Burst Transfer

A1 A2 A3 A4 A5 A6

CE

SCLK

I/O

W/R

A0

D1 D2 D3 D4 D5 D6

D7D0

Figure 13. 3-Wire Single-Byte Read

A1 A2 A3 A4 A5 A6

CE

SCLK

I/O

W/R

A0

D1 D2 D3 D4 D5 D6

D7D0

Figure 14. 3-Wire Single-Byte Write