Real time clock module
SERIAL REAL TIME CLOCK MODULE WITH TEMPERATURE SENSOR
RTC-4701JE / NB RX-4702CF
Product number (please refer to page 5)
Q 4 1 4 7 0 1 7 x 0 0 0 2 0 0
Q 4 1 4 7 0 1 9 x 0 0 0 2 0 0
Q 4 1 4 7 0 2 A x x x x x 0 0
• Built-in crystal unit allows adjustment-free efficient operation.
• Serial interface which can be controlled by three signal lines.
• Alarm interrupt function for day of week, day, hour, and minute.
•
Timer interrupt function which can be set up between 1/4096 second and 255 minutes. (Except for RX-4702CF)
RTC-4701JE
RTC-4701NB
RTC-4701CF
• OVF interrupt function based on 12-bit additional counter.
• Ability to detect stopping of oscillation and time update.
•
Built-in temperature sensor. (voltage output RTC-4701JE / NB :-7.6 mV / °C Typ. RX-4702CF : -7.8 mV / °C Typ.)
Actual size
• Wide range of voltage between 1.6 V and 5.5 V.
• Low power consumption at 0.5 µA / 3 V. (Typ.)
• Available for lead (Pb) - free soldering.
•
Lead (Pb) - free termainal (RX-4702CF),
Available for lead (Pb) - free terminal (RTC-4701JE / NB).
The details are mentioned in the application manual.
Specifications (characteristics)
Absolute Max. rating
External dimensions / Terminal connection(Unit: mm)
No.
1
No.
20
19
18
17
16
15
14
13
12
11
Pin terminal
VDD
Pin terminal
N.C
(VSOJ 20-pin)
Item
Supply voltage
Input voltage
Symbol
Condition
Min.
-0.3
Max.
+7.0
Unit
V
2
FOUT
N.C
3
CE
N.C
VDD
VDD to GND
4
5
6
AIRQ
TIRQ
CLK
N.C
N.C
N.C
VIN
Input Pin
VDD +0.3
+8.0
_______ _______ ______
VOUT1
VOUT2
TSTG
TIRQ, AIRQ, IRQ GND -0.3
7
8
DATA
FOE
N.C
N.C
Output voltage
FOUT, DATA
VDD +0.3
+125
9
10
VTEMP
SOFF
N.C
GND
Stored as bare product
Storage temperature
-55
°C
after unpacking
6.0 ±0.2
7.0 ±0.3
Operating range
Item
Symbol
Condition
Min.
1.6
Max.
5.5
Unit
V
(0.75)
(0.75)
0.65
0.22
Power voltage
VDD
VCLK
TOPR
−
Clock voltage
−
No.
1
2
3
4
5
6
7
8
No.
22
21
20
19
18
17
16
15
14
13
12
Pin terminal
GND
Pin terminal
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
Operating temperature
No condensation
-40
+85
°C
(SON 22-pin)
SOFF
VTEMP
FOE
DATA
CLK
TIRQ
AIRQ
CE
6.3 Max.
Frequency characteristics
Item
Symbol
Condition
Range
Unit
Frequency tolerance
Oscillation start up time
Ta = +25 °C, VDD = 3 V
Ta = +25 °C, VDD = 3.0 V
B: 5 ±23∗ x 10-6
Δf/f
9
10
11
N.C
—
—
tSTA
3 Max.
s
FOUT
VDD
0.5
0.2
Frequency temperature
characteristics
Ta = -20 °C to +70 °C
Reference at +25 °C
+10
-120
Top
x 10-6
Frequency voltage characteristics
f/V
fa
Ta = +25 °C, VDD = 1.6 to 5.5 V ±2 Max. x 10-6 / V
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
Aging
Ta = +25 °C, VDD = 3.0 V
±5 Max. x 10-6 / year
∗ Please ask tighter tolerance.
(SON 10-pin)
0.4
DC characteristics (GND = 0 V, VDD = 1.6 V to 5.5 V, Ta = -40 °C to +85 °C)
5.0 ±0.2
1.0
0.26
#10
#6
Item
Symbol
IDD1
Condition
Min. Typ. Max. Unit
_____
CE, FOE, SOFF = GND
_ _ _ _ _ _ _ _ ____
V
DD = 5 V
DD = 3 V
1.0
0.5
2.0
AIRQ, TIRQ, IRQ = VDD
32.768 kHz output is OFF.
Sensor output is OFF.
Standby current 1
−
µA
V
IDD2
V
1.0
Standby current 2
Input voltage
VIH
VIL
0.8 VDD
GND -0.3
4.5
V
DD +0.3
CE, CLK, DATA,
________
#1
#5
−
FOE, SOFF
0.2 VDD
No.
No.
10
9
8
7
Pin terminal
CE
CLK
DATA
SOFF
GND
Pin terminal
VDD
VTEMP
IRQ
FOE
FOUT
1
2
3
4
5
VOH1
VOH2
V
V
V
V
DD = 5 V
5.0
IOH = -1 mA
DATA, FOUT pins
2.0
Output voltage 1
DD = 3 V
DD = 5 V
DD = 3 V
3.0
I
OH = -100 µA
6
VOH3
2.9
DATA, FOUT pins
Temperature sensor characteristics
GND = 0 V, Ta = -40 °C to +85 °C
VOL1
VOL2
GND +0.5
GND +0.8
IOL = 1 mA
−
V
DATA, FOUT pins
Item
Symbol
Condition
Min. Typ. Max. Unit
IOL =100 µA
Ta = +25 °C, GND based
output voltage VTEMP
pin, VDD = 2.7 V to 5.5 V
Temperature output
voltage
Output voltage 2
VOL3
GND
GND +0.1
V
TEMP
1.48
V
DATA, FOUT pins
VOL4
VOL5
V
DD = 5 V
DD = 3 V
GND +0.25
GND +0.4
_____IO_L__=__1_m__A_
AIRQ, TIRQ, IRQ pins
Output precision
TACR
Ta = +25 °C, VDD = 2.7 V to 5.5 V
±5.0 °C
V
RTC-4701JE / -7.1 -7.6 -8.1
RX-4702CF -7.3 -7.8 -8.3
Temperature
sensitivity
-40 °C ≤ Ta ≤ +85 °C,
DD = 2.7 V to 5.5 V
VSE
mV / °C
V
Linearity
-40 °C ≤ Ta ≤ +85 °C, VDD = 2.7 to 5.5 V
±2.0
%
ΔNL
Ta = +25 °C, VTEMP pin,
Output resistance
Ro
V
DD = 2.7 V to 5.5 V GND
1.0 3.0 kΩ
standard and VDD standard
81
