PDF預(yù)覽

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10

REAL-TIME CLOCK

WITH INTERNAL RAM

RP/RF5C01A

NO. EK-086-9804

OUTLINE

The RP/RF5C01A are real-time clocks for microcomputers that can be connected directly to buses of microcom-

puters with such CPUs as the 8085A or Z80 and allow setting or reading of the clock with the same procedures as

for the Read/Write operation for memory.

These products have various features such as clock and calendar counters, alarm functions, and 26

麓

4bits RAM

which can be backed up by batteries. They can then be used as non-volatile RAM.

FEATURES

鈥?Connected directly to CPU

鈥?4bit bidirectional data bus : D0 - D3

鈥?4bit address input : A0 - A3

鈥?Built-in clock counter (hour, minute, second) and calendar counter (leap year, year, month, day, day-of-the-week)

鈥?Supports both 12-hour AM/PM clock and 24-hour clock

鈥?All clock data expressed in BCD codes

鈥?Backed up by batteries (minimum:2.2V)

鈥?鹵30 second adjustment function

鈥?Built-in 26

麓

4bits RAM

鈥?Outputs alarm signals or timing pulse of 16Hz or 1Hz.

鈥?Packages : 18pin DIP (RP5C01A) ; 18pin SOP(RF5C01A)

BLOCK DIAGRAM

1H

z

,16H

z

,

OSCIN

OSCOUT

S

2

S

3

S

4

S

5

S

6

S

7

S

8

OSC

1/2

15

4

T-RESET

RD.WR.

MODE01

A-RESET

3

4

2

3

4

2

ALARM REGISTER

ADJ

CS

CS

RD

WR

ADJ

HOLD

CLOCK

HOLD

RD. WR.

MODE 00

COMPARATOR

ALARM

ALARM

ALARM

OUTPUT

SECONDS MINUTES

1

1

1

1

1

HOURS

1

DAYS

1

MONTHS

1

YEARS

1

/

10

/

6

/

10

/

6

/

12

/

24

/

7

1

/

28

- /

31

1

/

12

/

10 1

/

10 1

/

4

RD.WR.

MODE10,MODE11

SO-SC

26

麓

4bits

RAM

S0

4 3

S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC

4 3 4 2 3 4 2 4 1 4 4 2

4

4

CONTROLLER

SD

-SF

SO

SF

ADDRESS

DECODER

BUS

CONTROL

INTERNAL

BUS

BUFFER

A

0

A

1

A

2

A

3

D

0

D

1

D

2

D

3

LEAP

YEARS

WEEK

1

next

RP5C01A相關(guān)型號(hào)PDF文件下載

• 型號(hào)
  版本
  描述
  廠商
  下載
• RP5C01
  英文版
  IC,REAL-TIME CLOCK,CMOS,DIP,18PIN,PLASTIC
  Ricoh
  RP5C01
• RP5C15
  英文版
  REAL-TIME CLOCK
  RICOH
  RP5C15
• RP5C15
  英文版
  REAL-TIME CLOCK
  RICOH [RIC...
  RP5C15
• RP5C62
  英文版
  REAL-TIME CLOCK
  RICOH
  RP5C62
• RP5C62
  英文版
  REAL-TIME CLOCK
  RICOH [RIC...
  RP5C62
• RP5C01A
  英文版
  REAL-TIME CLOCK WITH INTERNAL RAM
  RICOH
  RP5C01A
• RP5C01A
  英文版
  REAL-TIME CLOCK WITH INTERNAL RAM
  RICOH [RIC...
  RP5C01A

您可能感興趣的PDF文件資料

• RP5C62
• RP5C62
• RP5C15
• RP5C15
• RP5C01A
• RP5C01A
• RP5C01

熱門IC型號(hào)推薦

• REF3120AIDBZR
• RT8209AGQW
• RB471E
• R3112Q271A-TR-F
• RT9169-15CX
• RLZTE-1115B
• RT9042-25GSP
• RT1N144U-T111-1
• RS1G
• RT8009GB
• RHU002N06
• RT8010APQW