Figure 2. timing diagram, Figure 3. block diagram – Rainbow Electronics DS1338 User Manual

Page 5

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DS1338 I

2

C RTC with 56-Byte NV RAM

5 of 15

Figure 2. Timing Diagram

Figure 3. Block Diagram

RAM

(56 x 8)

SERIAL BUS

INTERFACE AND

ADDRESS

REGISTER

OSCILLATOR AND

DIVIDER

CONTROL

LOGIC

X1

X2

SCL

SDA

1Hz

1Hz/4.096kHz/8.192kHz/32.768kHz

MUX/

BUFFER

SQW/OUT

USER BUFFER

(7 BYTES)

CLOCK,

CALENDAR,

AND CONTROL

REGISTERS

"C" VERSION

ONLY

POWER CONTROL

Dallas

Semiconductor

DS1338

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