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參數(shù)資料
| 型號： | MSM62X42 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL |
| 中文描述： | 實(shí)時時鐘芯片，配有晶體 |
| 文件頁數(shù)： | 1/27頁 |
| 文件大?。?/td> | 202K |
| 代理商： | MSM62X42 |
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Semiconductor
MSM62X42B
MSM62X42B
41
DESCRIPTION
The MSM62X42B is a bus-connection Micro-
computer peripheral IC of a Real Time Clock
with built-in crystal in the perpetual calendar
which can be read and written from a second
unit. The interface between this IC and a
microcomputer uses 4 data buses, 4 address
buses, 3 control buses and 2 chip selects and
carries out setting up, amending and reading
time.
ALE input is available for 8048 system, 8051
system or 8085 system and is used for other
microcomputers if this input is fixed at "H".
REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL
The clock function provides seconds, min-
utes, hours, day of week, date, month, year,
12/24 hour selectable, automatic leap year in
the Christian Era and 30-second compensa-
tion controlled by software. The periodical
interrupt function (or periodical waveform
output) and the STOP/START function of the
clock are also provided. The device is a silicon
gate CMOS and the current consumption is
low. The built-in crystal oscillator is 32.768
kHz and battery backup operation is consid-
ered.
FEATURES
STOP/START function for clock
12/24 hour selectable
AEL input for 8048 system, 8051 system
or 8085 system (when a microcomputer
does not provide the ALE output, fix the
AEL input at "H".)
Low current consumption for CMOS
device
Low STANDBY voltage and small
STANDBY current
18-pin plastic DIP(DIP18-P-300)
24-pin plastic SOP
32.768kHz built-in crystal oscillator
(2 ranks of
±
10PPM and
±
50PPM ---
DIP)
(2 ranks of
±
20PPM and
±
50PPM ---
SOP)
Real time clock of second, minute, date,
month, year and day of week
Interface corresponding to microcom-
puter bus
30-second compensation controlled by
software
Periodical interrupt function (or
periodical waveform output) for alarm
Note:
The actual type name indicates the abbreviated one, M62X42B.
V
DD
(V
DD
)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
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14
13
(V
DD
)
STD.P
CS
0
NC
ALE
A0
NC
A
1
NC
A
2
A
3
RD
GND
WR
D
3
D
2
D
1
NC
NC
D
0
CS
1
NC
NC : NO CONNECTION (unused pins)
MSM62X42BGS-1K
(TOP View) 24 Lead Plastic SOP
STD.P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
V
DD
(V
DD
)
(V
DD
)
CS
0
ALE
A
0
CS
1
A
1
D
0
A
2
D
1
A
3
D
2
RD
D
3
GND
WR
MSM62X42BRS
(TOP View) 18 Lead Plastic DIP
PIN CONFIGURATION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM62X42B | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL |
| MSM62X42BG3-1K-SR1 | 制造商:ROHM Semiconductor 功能描述: |
| MSM62X42BGS-1K-B | 制造商:OK International 功能描述: |
| MSM62X42BRS-A | 制造商:ROHM Semiconductor 功能描述: |
| MSM62X42BRS-B | 制造商:ROHM Semiconductor 功能描述: |
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