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參數(shù)資料
| 型號(hào)： | RTC62421 |
| 廠商： | 愛普生（中國）有限公司 |
| 英文描述： | 4-bit REAL TIME CLOCK MODULE |
| 中文描述： | 4位實(shí)時(shí)時(shí)鐘模塊 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 73K |
| 代理商： | RTC62421 |
64
Real time clock module
CS
1
CS
0
or WR not occurred
CS
1
1/5V
DD
V
DD
4V
4V
V
IH
2
V
IH
2
V
IL
2
V
IL
2
t
CDR
t
R
2 to 4V
≤
Data storage mode
Interface possible
with external
terminals
Interface possible
with external
terminals
Data holding timing
Register table
32.768 kHz
WR
RD
D
3
D
2
D
1
D
0
A
3
A
2
A
1
A
0
CS
0
ALE
CS
1
OCS
G
A
T
E
G
A
T
E
G
A
T
E
&
L
A
T
C
H
D
E
C
O
D
E
R
S
I
to C
F
COUNTER
1 Hz
Rbit
Sbit
Hbit
Bbit
STD.P
1 1 sec 64Hz
1 hour carry
30bit
30s.ADJ bit
24 / 12 bit
S
1
S
10
D
1
D
10
M
10
H
1
H
10
Y
1
Y
10
W
M
1
MO
10
MO
1
C
D
C
E
C
F
V
DD
Switching characteristics
(ALE =While in use)
Item
CS
1
setup time
CS
1
hold time
Address setup time
Address hold time
ALE pulse width
ALE before WRITE
ALE before READ
ALE after WRITE
ALE after READ
WRITE pulse width
RD
to data
DATA hold
DATA setup time
DATA hold time
RD
/WR
recovery time
Read mode
Write mode
V
IH2
V
IH2
V
IH
1
V
IL
1
V
IH
1
V
IH
1
V
IH
1
t
DS
V
IL
1
V
IL
1
V
IL
1
V
IH
1
V
IL
1
V
IH
1
t
ALW
V
IH
1
V
IH
1
V
IH
1
V
IL
1
CS
0
ALE
WR
A
3
to A
0
D
3
0
(Input)
t
C1H
t
CIS
t
AS
t
RCV
t
AH
t
AW
t
WAL
t
WW
t
DH
CS
1
V
IH2
V
IH2
V
IH
1
V
IH
1
V
IL
1
V
IH
1
V
IL
1
V
IL
1
V
IH
1
t
V
IH
1
V
OH
V
OL
V
IH
1
V
IL
1
CS
0
ALE
RD
A
3
to A
0
D
3
to D
0
(output)
t
CIH
t
C1S
t
AS
t
RCV
t
RD
t
DR
t
AH
CS
1
“Z”
Block diagram
Supplement
0=“L” level. 1=“H” level
Note: Do not enter erroneous data for clock. This may result in time keeping error.
(V
DD
= 5V
±
0.5V, Ta = -40 to + 85C)
t
AW
t
RAL
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
A
3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Name of
register
S
1
S
10
MI
1
MI
10
H
1
H
10
D
1
D
10
MO
1
MO
10
Y
1
Y
10
W
C
D
C
E
C
F
D
3
s
8
mi
8
h
8
d
8
mo
8
y
8
y
80
30 sec.
ADJ
t
1
TEST
D
2
s
4
s
40
mi
4
mi
40
h
4
PM/AM
d
4
mo
4
y
4
y
40
w
4
IRQ
FLAG
t
0
24/12
D
1
s
2
s
20
mi
2
mi
20
h
2
h
20
d
2
d
20
mo
2
y
2
y
20
w
2
BUSY
ITRPT
/STND
STOP
D
0
s
1
s
10
mi
1
mi
10
h
1
H
10
d
1
d
10
mo
1
mo
10
y
1
y
10
w
1
HOLD
MASK
RESET
Count
0 to 9
0 to 5
0 to 9
0 to 5
0 to 9
0 or
0 to 1
0 to 9
0 to 3
0 to 9
0 to 1
0 to 9
0 to 6
Note
1 - sec. digit register
10 - sec. digit register
1 - min. digit register
10 - min. digit register
1 - hour digit register
10 - hour digit register
1 - day digit register
10 - day digit register
1 - month digit register
10 - month digit register
1 - year digit register
10 - year digit register
Week register
Control register D
Control register E
Control register F
1
0
PM/AM
PM
AM
24/12
24
12
ITRPT/STND
ITRPT
STND
Bit name
mark
BUSY
IRQ FLAG
24H/12H
TEST
Description
Writable. Recognized as 0 while in read mode.
Read only (effective only when HOLD=1)
Enter “0” only when clearing interruption. Enter “1” otherwise.
Set able only when RESET=1
For our company's testing. TEST should be “0” in normal use.
Symbol
t
CIS
t
CIH
t
AS
t
AH
t
AW
t
ALW
t
ALR
t
WAL
t
RAL
t
WW
t
RD
t
DR
t
DS
t
DH
t
RCV
Condition
—
C
L
=150pF
—
Min.
1000
1000
25
25
40
10
10
20
10
120
0
100
10
60
Max.
—
120
45
—
Unit
ns
A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RTC-62421 | 制造商:EPSONTOYOCOM 制造商全稱:Epson ToYoCom 功能描述:4-bit REAL TIME CLOCK MODULE |
| RTC-62421A | 功能描述:IC REAL TIME CLOCK 18-DIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| RTC-62421B | 功能描述:IC REAL TIME CLOCK 18-DIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
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