Actual size
Real time clock module
Real time clock moduleReal time clock module
Real time clock module
Block diagram
This is a block diagram for RTC-7301SF.
Be aware that RTC-7301DG differs according to the following 2 points.
∗1) The V
TEMP
output is not connected to an external pin.
∗2) The F
CON
input pin is not connected to an external pin,
F
CON
is fixed at "H" internally.
External dimensions/Terminal connection
(
Unit:mm
)
Specifications (characteristics)
*Refer to application
manual
for details
.
■
Absolute Max. rating
GND=0 V
■
DC characteristics (
GND=0 V,V
DD
=1.6 V to 5.5 V,T
a
=-40 °C to +85 °C)
Item Symbol
Conditions Min. Max. Unit
Item Symbol
Conditions Min.
Typ.
Max.
Unit
Supply voltage
V
DD
V
DD
to GND -0.3 +7.0
V
Current consumption
(When non-accessed)
F
OUT
=Output OFF
V
TEMP
=Output OFF
I
DD1
/CS
0
,/RD,/WR=V
DD
A
0
-A
3
,CS
1
=GND
D
0
-D
3
,/IRQ=Hi-z
F
OUT
=Hi-z(OFF)
V
TEMP
=Hi-z(OFF)
V
DD
=5 V
-
1.0
2.0
µA
Input voltage V
IN
Input terminal,
D
0
to D
3
pins GND-0.3
V
DD
+0.3
Output voltage(1)
V
OUT1
/IRQ pin +8.0
I
DD2
V
DD
=3 V
-
0.6
1.0
Output voltage(2)
V
OUT2
F
OUT
,D
0
-D
3
,V
TEMP
pin V
DD
+0.3
Storage
temperature T
STG
Stored as bare product.
-55 +125 °C
Note)There is no V
TEMP
pin on the RTC-7301DG so standards for
the V
TEMP
pin within the conditions described above do not apply.
■
Operating range
GND = 0 V
■
Temperature sensor characteristics
GND=0 V,T
a
=-40
°
C to +85
°
C
Item Symbol
Conditions Min. Max. Unit
Item Symbol
Conditions Min.
Typ.
Max.
Unit
Power voltage
V
DD
-
2.4 5.5 V
Temperature
output voltage V
TEMP
T
a
=+25 °C,GND based output voltage
V
TEMP
pins,V
DD
=2.7 V to 5.5 V - 1.470
- V
Clock voltage
V
CLK
-
1.6
Operating
temperature T
OPR
No condensation -40 +85 °C
Output precision
T
ACR
T
a
=+25 °C,V
DD
=2.7 V to 5.5 V - - ±5.0
°C
■
Frequency characteristics
Temperature
sensitivity V
SE
-40 °C≤T
a
≤+85 °C,V
DD
=2.7 V to 5.5 V
-7.3
-7.8
-8.3
mV/ °C
Item Symbol
Conditions Range Unit
Linearity ∆NL -40 °C≤T
a
≤+85 °C,V
DD
=2.7 V to 5.5 V
- - ±2.0
%
Frequency
precision ∆f /f T
a
=+25 °C,V
DD
=3.0 V
B:5±23
(*1)
×10
-6
Temperature
detection range
T
SOP
∆NL≤ ±2.0 %,V
DD
=2.7 V to 5.5 V -40 - +85
°C
Oscillation
Start up time
t
STA
T
a
=+25 °C,V
DD
=2.4 V
3.0 Max. s
Output resistance
R
0
T
a
=25 °C,V
TEMP
pins,V
DD
=2.7 V to 5.5 V
GND standard and V
DD
standard - 1.0
3.0
kΩ
Frequency
temperature
characteristics T
OP
T
a
=-10 °C to +70 °C
V
DD
=3.0 V ,+25 °C +10 / -120 ×10
-6
Load condition C
L
V
DD
=2.7 V to 5.5 V - - 100
pF
Frequency
voltage characteristics
f/V T
a
=+25 °C,
V
DD
=1.6 V to 5.5 V ±2.0 Max. ×10
-6
/V
R
L
V
DD
=2.7 V to 5.5 V 500
- - kΩ
Aging fa T
a
=+25 °C,
V
DD
=3.0 V First year ±5.0 Max. ×10
-6
/year
Response time
t
RSP
V
DD
=3.3 V
C
L
=50 pF, R
L
=500 kΩ, Max. ±1 °C - - 200
µs
(
*
1) Please ask tighter tolerance
Note)There is no temperature sensor function on the RTC-7301DG.
RTC-7301SF RTC-7301DG
RTC-7301SF (SSOP 24-pin)
The metal case inside of the molding compound may be exposed on the top or bottom of this product.
This purely cosmetic and does not have any effect on quality, reliability or electrical specs.
0.5
0.15
0° - 10°
0.8
2.0 Max.
0.36 0 Min.
#12
#1
10.2 ± 0.3
#24
#13
5.4
7.8
± 0.3
R7301
E 123 4A
RTC-7301DG (DIP 18-pin)
7.62
0° -15°
0.25
0.46
4.2
Max.
2.54
Min.
0.2
Min.
2.54
1.52
23.1 Max.
6.3
#1
#18
#10
#9
RTC7301
E
123
4A
No.
Pin
terminal
N
o.
Pin
terminal
1
/CS0
24
V
DD
2
F
CON
23
(V
DD
)
3
F
OUT
22
(V
DD
)
4 V
TEMP
21 (V
DD
)
5
(V
DD
)
20
(V
DD
)
6
/IRQ
19
(V
DD
)
7 A
0
18 CS
1
8
A
1
17
D
0
9
A
2
16
D
1
10
A
3
15
D
2
11
/RD
14
D
3
12
GND
13
/WR
No. Pin
terminal No. Pin
terminal
1
/CS0
18
V
DD
2
F
OUT
17
(V
DD
)
3
/IRQ
16
(V
DD
)
4
A
0
15
CS
1
5
A
1
14
D
0
6 A
2
13 D
1
7
A
3
12
D
2
8
/RD
11
D
3
9 GND 10 /WR
REAL TIME CLOCK MODULE (4-bit)
RTC
-
7301SF
/
DG
•
Built-in crystal unit 32.768 kHz with frequency adjusted
•
High speed parallel interface compatible with SRAM
•
Built-in alarm and timer interrupt functions.
•
Built-in semiconductor temperature sensor
(Voltage output: -7.8 mV / °C, only RTC-7301SF)
•
Frequency selectable clock output (32.768 kHz to 1/30 Hz)
•
Built-in 30 second adjustment function, digital pace adjustment function
(Max. adjustment: ±192 × 10-6)
•
Operating voltage range:2.4 V to 5.5 V,
time keeping voltage range: 1.6 V to 5.5 V
•
Low current consumption (0.6 µA / 3 V Typ.)
FOUT
CONTROLLER
FOUT
FCON
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
TIMER
REGISTER
ALARM
REGISTER
Temperature
Sensor
CLOCK
and
CALENDAR
OSC
32.768 kHz
DIVIDER
CONTROL
REGISTER
and
SYSTEM
CONTROLLER
/ IRQ
Control Line
VTEMP
Digital Trimming
REGISTER
A0
−
A3
/ RD
D0
−
D3
/ W R
/ CS0
CS1
∗
1
∗
2
7301SF
7301DG
∗
1
Product Number (Please contact us)
RTC-7301SF : Q42730181000200
RTC-7301DG : Q42730111000200
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Notice
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