RF5C01A datasheet(5/10 Pages) RICOH

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RP/RF5C01A

tRD

tCC

tAC

tRDH

tCA

A0 to A3

D0 to D3

•

Read Cycle (CS=“H”)

*) The RP/RF5C01A accept RD signals only when CS=“L” and CS=“H” as in the case of WR signals. Thus, substitute RD signals shown above, as in the

case of WR signals, with CS · RD signals to be applicable to the RP/RF5C01A configuration.

MODE

MODE 00

MODE 01

A3 to A0

Description

1-second counter

10-second counter

1-minute counter

1-minute alarm register

10-minute counter

10-minute alarm register

1-hour counter

1-hour alarm register

10-hour counter

10-hour alarm register

Day-of-the-week counter

Day-of-the-week alarm register

1-day counter

1-day alarm register

10-day counter

10-day alarm register

1-month counter

10-month counter

12/24 select register

1-year counter

Leap year counter

10-year counter

MODE register

TEST register

Test 3

Test 2

Test 1

Test 0

Test 3

Test 2

Test 1

Test 0

RESET controller, etc.

*) “x” means “Don't care” for Write; always “0” for Read.

1Hz

16Hz

MODE register

Timer

RESET

Alarm

RESET

1Hz

16Hz

MODE register

Timer

RESET

Timer

RESET

RAM

4bits

´13

BLOCK

RAM

4bits

´13

BLOCK

Timer

Alarm

Timer

Alarm

ditto

ADDRESS MAPPING

Descrip-

tion

Descrip-

tion

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