Real time clock module
8-bit REAL TIME CLOCK MODULE
RTC-64611/64613
•
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•
•
•
•
•
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Builtin crystal unit allows adjustment-free efficient operation.
8-bit data bus and high speed access (85 nsec. max.).
Provided with the same interface as S-RAM and battery backup function.
Interruption of alarm of sec. to day and day of week and carry interruption.
Reference signal selectable in a range of 1 Hz to 64 Hz (binary).
Leap year automatically adjustable (gregorian calendar).
With 1 Hz output terminal.
Provided with START/STOP, 30 second adjust function.
RTC-64613 uses a similar mounting method to that of a normal SMD IC.
Actual size
Specifications (characteristics)
Absolute Max. rating
Item
Power source voltage
Input voltage
Storage temperature
Symbol
V
DD
V
IN
T
STG
RTC-64611
RTC-64613
RTC-64611
Soldering condition
T
SOL
RTC-64613
Condition
Ta=25˚C
Specifications
-0.5 to 7.0
-0.5 to V
DD
+0.3
-55 to +85
-55 to +125
Under 260˚C within 10 sec.
(lead part) (package should
be less than 150˚C)
Twice at under 260˚C within
10 sec. or under 230˚C
within 3 min.
Terminal connection
Unit
V
˚C
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
No.
1
2
3
4
5
6
7
8
9
10
11
12
Pin terminal
GND
H-START/STOP
IRQ
1H
Z
A
3
A
2
A
1
A
0
I/O
1
I/O
2
I/O
3
GND
No. Pin terminal
13
I/O
4
14
I/O
5
15
I/O
6
16
I/O
7
17
I/O
8
18
CS
19
OE
20
WE
21
NC
(V
DD
)
22
(V
DD
)
23
24
V
DD
Operating range
Item
Symbol
V
DD
T
OPR
V
DH
t
CDR
t
R
Condition
—
CS
≥V
DD
- 0.2V
Specifications
4.5 to 5.5
-20 to + 75
2.0 to 4.5
0 min.
t
RC
(85 ns.)
ns
Unit
V
˚C
V
(V
DD
) is to be same level as V
DD.
Do not connect it to any external terminals.
NC is not connected internally.
Operating voltage
Operating temperature
Data holding voltage
CS data holding time
Operation restoring time
External dimensions
RTC-64611
( Unit: mm )
Frequency characteristics and current consumption
characteristics
Item
Symbol
Condition
64611 A
Ta=25˚C 64611 B
V
DD
=5V
64613 A
64613
Frequency temperature
characteristics
Aging
Shock resistance
Current consumption
-10 to +70˚C
(25˚C reference temperature)
-20 to +75˚C
(25˚C reference temperature)
Specifications
+15/-5(5±10)
+55/-45(5±50)
+25/-15(5±20)
+55/-45(5±50)
+10/-220
+10/-120
Unit
RTC64611 A
EPSON 5101A
32.0 max.
Frequency tolerance
∆f/fo
ppm
15.24
0.8
4.4
13.6
fa
S.R.
I
DD 1
I
DD 2
V
DD
=5V, Ta=25˚C,
first year
Three drops on a
hard board from 75 cm
or 3000G x 0.3ms x 1/2 sine
wave x 3 directions
±
5 max.
±
10 max.
2 max.
ppm/Y
ppm
mA
µA
16.3 max.
3.3
0.25
90° to
105°
No load
V
DD
=5V
__
CS
≥
1.8V
V
DD
=2V
RTC-64613
Unless otherwise stated, characteristics (specifications) shown in the above table are
based on the rated operating temperature and voltage condition.
DC characteristics
Item
“H” input voltage
“L” input voltage
Input leak current
Symbol
V
IH
V
IL
I
IN
I
TSL
I
LOH
V
OH
V
OL
C
IN
C
OUT
Condition
( V
DD
= 5V
±
0.5V, Ta = -20 to + 75˚C )
V
DD
= 5V
±
10%
V
DD
= 2V
2.2
-0.3
—
V
DD
0.8
±
2
±
10
—
0.4
—
12.5
—
V
2.8 max.
0.3
V
DD
-0.2
-0.3
V
DD
0.2
±
2
±
10
V
Three-state leak current
Output leak current
“H” output voltage
___
(except for 1 Hz, IRQ)
µA
“L” output voltage
Input capacity
Output capacity
I
OL
=2.1mA
V
IN
=OV
Ta=25˚C
f =1.0 MHz
2.5
—
pF
0.05 min.
1.0
0° to
10°
69
0.2
I
OH
=-1mA
2.4
12.2 max.
Min.
Max.
Min.
Max.
Unit
RTC64613 A
EPSON9360A
7.9
Real time clock module
Register table
Address
Switching characteristic
Data
Remarks
b
2
16 Hz
b
1
32 Hz
b
0
64 Hz
Measuring condition
Input pulse level: 0.8 to 2.4V
Input rise time, fall time: 5 nsec.
IN/OUT timing pulse level: 1.5V
Out put load: 1 TTL Gate +100pF
b
7
∗
0
1
2
3
4
5
6
7
8
9
A
B
C
D
b
6
1 Hz
b
5
2 Hz
b
4
4 Hz
b
3
8 Hz
10-sec. digit
10-min. digit
10-hour digit
∗
∗
∗
10-day digit
10-month
∗
digit
10-year digit
2 Hz
4 Hz
1 Hz
10-sec. digit
10-min. digit
∗
10-hour digit
∗
10-day digit
∗
∗
ENB
1-sec. digit
1-min. digit
1-hour digit
Day-of-week digit
1-day digit
1-month digit
1-year digit
8 Hz 16 Hz 32 Hz 64 Hz
1-sec. digit
1-min. digit
1-hour digit
Day-of-week digit
1-day digit
∗
Alarm
flag
Counter
Read mode
Item
Read cycle time
Alarm
register
Address access time
Chip select access time
Output enable access time
Output hold time
Control
register
Chip select / output set time
Output enable / output set time
Chip deselect / output floating
Output disable / output floating
t
RC
Address
Symbol
t
RC
t
AA
t
ACS
t
OE
t
OH
t
CLZ
t
OLZ
t
CHZ
t
OHZ
Min.
85
Max.
—
85
Unit
—
45
10
—
5
0
35
ns
E
Carry
flag
Carry
Alarm
interruption interruption
enable
enable
F
∗1
S.START
RAM7 RAM6 RAM5 RAM4 TEST
30-sec.
RESET
adjustment
/STOP
∗1
Be sure to enter “O” to TEST bit.
Supplement
Bit name
∗
mark
Description
Empty bit and unwriteable
Recognized as “0” while reading
Only for 24H mode
Read only (unwriteable)
Used as binary code data
t
AA
t
OH
OE
V
OL
V
OL
10-hour digit (b
5
)
Under-sec.
counter
Under-sec.
alarm register
Sec.to year
Day of week
t
OE
t
OLZ
CS
V
OL
V
OL
t
OH
t
OHZ
t
OHZ
Used as binary code data
Both counter and alarm register use BCD code
Coded data is used
EX: 0…Sunday
1…Monday
4…Thursday 5…Friday
D
OUT
t
ACS
t
CHZ
Data valid
2…Tuesday 3…Wednesday
6…Saturday
Write mode
Item
Write cycle time
Chip select time
Symbol
t
WC
t
CW
t
AW
t
AS
t
WP
t
WR
t
WHZ
t
DW
t
DH
t
OHZ
t
OW
t
WC
Address
Note: Do not enter erroneous data for clock. This may result in time keeping error.
Min.
85
75
0
60
10
0
40
0
Max.
Unit
Block diagram
OSC
32.768 KH
Z
16 KHz
2 KHz
32 Hz
8 KHz
1 KHz
16 Hz
4 KHz
512 Hz
8 KHz
256 Hz
4 Hz
128 Hz
2 Hz
64 Hz
1 Hz
1 Hz
Address valid time
Address setup time
Write pulse time
—
ns
H • START / STOP
64 Hz register / counter
Sec. register / counter
Min. register / counter
Hour register / counter
Day-of-week register / counter
Day register / counter
Month register / counter
Year register / counter
Alarm comparison circuit
Address holding time
___
WE output floating
Input data set time
Input data hold time
Output disable / output floating
___
WE output set time
IRQ
35
—
35
5
—
64 Hz alarm. register
Sec. alarm. register
Min. alarm. register
Hour alarm. register
Day-of-week alarm. register
Day alarm. register
t
W-R
OE
Control register A
Control register B
Write
Read
Bus interface circuit
t
CW
CS
WE
t
AS
t
AW
t
OHZ
D
OUT
I/0
1
to I/0
3
Data bus
A
0
to A
3
Address bus
CS
OE
WE
t
WP
t
DW
t
DH
D
IN
70
