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RTC63421 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part No. RTC63421
Description  4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE
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Maker  ETC [List of Unclassifed Manufacturers]
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RTC63421 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

   
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58
Real time clock module
R/W
E
A0 to A3
D0 to D3
CS1
CS0 or WR not occurred
CS1
1/5VDD
VDD
4V
4V
VIL2
VIH
VIL
VIL
tCDR
tR
2 to 4V
Data holding mode
Interface possible
with external
terminals
Interface possible
with the external
terminals
Read mode
Write mode
Data hoiding timing
Switching characteristics
Register table
t EC
t ELW
t ERW
t EHW
t RWE
t DS
t DH
VIL1
VIL1
VIL1
VIL1
VIL1
VIL1
VIL1
VIL
VIH1
VIH1
VIH1
VIH1
VIH
VIH1
VIL1
R/W
E
A0 to A3
D0 to D3
t EC
t ELW
t ERW
t EHW
t RWE
t RD
t ED
VOL1
VIL1
VIL1
VIH1
VIH1
VIL1
VIL1
VIL
VOH1
VOL1
VOH1
VIH1
VIH1
VIH1
VIH1
( VDD = 5V ± 0.5V, Ta = 0 to + 70˚C)
Motorola bus system
Switching characteristics on the Intel bus system are the same as those for the RTC-6242 series.
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Symbol
of
register
R-S1
R-S10
R-MI1
R-MI10
R-H1
R-H10
R-D1
R-D10
R-MO1
R-MO10
R-Y1
R-Y10
R-W
CD
CE
CF
D3
r-S8
r-mi8
r-h8
r-d8
r-mo8
r-y8
r-y80
IT/PLS2
IRQ
FLAG0
BANK1
BANK0
D2
r-S4
r-S40
r-mi4
r-mi40
r-h4
___
r-
PM/AM
r-d4
r-mo4
r-y4
r-y40
r-w4
IT/PLS1
RESET
STOP
D1
r-S2
r-S20
r-mi2
r-mi20
r-h2
r-h20
r-d2
r-d20
r-mo2
r-y2
r-y20
r-w2
MASK2
IRQ
FLAG2
30 sec.
ADJ
D0
r-S1
r-S10
r-mi1
r-mi10
r-h1
r-h10
r-d1
r-d10
r-mo1
r-mo10
r-y1
r-y10
r-w1
MASK1
IRQ
FLAG1
READ
FLAG
Real time
register name
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
Item
__
R/W, address setup time
E “H” pulse width
__
R/W, address hold time
E “L” pulse width
E cycle time
DATA setup time
DATA hold time
E to data (CL=150pF)
Data hold
Symbol
tRWE
tEHW
tERW
tELW
tEC
tDS
tDH
tRD
tED
Min.
100
220
20
220
500
180
20
––
10
Max.
––
120
––
Unit
ns
BANK 0
Symbol
of
register
A-S1
A-S10
A-MI1
A-MI10
A-H1
A-H10
A-D1
A-D10
A-MO1
A-MO10
A-W
A-EMB
CC
CD
CE
CF
D3
a-S8
a-mi8
a-h8
a-d8
a-mo8
ae8
HD/SFT
D2
a-S4
a-S40
a-mi4
a-mi40
a-h4
___
a-
PM/AM
a-d4
a-mo4
r-w4
ae4
CY2
__
24/12
D1
a-S2
a-S20
a-mi2
a-mi20
a-h2
a-h20
a-d2
a-d20
a-mo2
a-w2
ae2
TEST2
CY1
CAL
D0
a-S1
a-S10
a-mi1
a-mi10
a-h1
a-h10
a-d1
a-d10
a-mo1
a-mo10
a-w1
ae1
TEST1
CY0
D
⋅ P
Alarm
register name
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
Week register
Area define register
Test register
Control register D
Control register E
Control register F
BANK 1
Same as BANK 0


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