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

21

Maxim Integrated

W/R

A6 A5 A4 A3 A2 A1

A0

D7 D6 D5 D4 D3 D2 D1 D0

CS

SCLK

(MODE 0)

SCLK

(MODE 1)

DIN

DOUT

HIGH IMPEDANCE

Figure 10. SPI Single-Byte Write

CS

SCLK

(MODE 0)

SCLK

(MODE 1)

DIN

DOUT

HIGH IMPEDANCE

W/R A6

A5 A4

A3

A2 A1

A0

D7 D6 D5 D4 D3 D2 D1 D0

Figure 11. SPI Single-Byte Read