Actual size
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 VTEMP output is not connected to an external pin.
2) The FCON input pin is not connected to an external pin,
but is fixed at "H" internally.
External dimensions/Terminal connection
(
Unit:mm
)
S
p
ecifications
(
characteristics
)
*Refer to a
pp
lication manual for details.
■Absolute Max. rating GND=0 V ■DC characteristics (GND=0 V,VDD=1.6 V to 5.5 V,Ta=-40 C to +85 C)
Item Symbol Conditions Min. Max. Unit Item Symbol Conditions Min. Typ. Max. Unit
Supply voltage VDD VDD to GND -0.3 +7.0
V
Current consumption
(When non-accessed)
FOUT =Output OFF
VTEMP=Output OFF
IDD1 /CS0,/RD,/WR=VDD
A0-A3,CS1=GND
D0-D3,/IRQ=Hi-z
FOUT=Hi-z(OFF)
VTEMP=Hi-z(OFF)
VDD=5 V
-
1.0 2.0
A
Input voltage VIN Input terminal,
D0 to D3 pins GND-0.3 VDD+0.3
Output voltage(1) VOUT1 /IRQ pin +8.0 IDD2 VDD=3 V
-
0.6 1.0
Output voltage(2) VOUT2 FOUT,D0-D3,VTEMP pin VDD+0.3
Storage
temperature TSTG Stored as bare product. -55 +125 C Note)There is no VTEMP pin on the RTC-7301DG so standards for
the VTEMP pin within the conditions described above do not apply.
■Operating range GND = 0 V ■Temperature sensor characteristics GND=0 V,Ta=-40 C to +85 C
Item Symbol Conditions Min. Max. Unit Item Symbol Conditions Min. Typ. Max. Unit
Power voltage VDD
-
2.4 5.5 V Temperature
output voltage VTEMP Ta=+25 C,GND based output voltage
VTEMP pins,VDD=2.7 V to 5.5 V 1.470 V
Clock voltage VCLK
-
1.6
Operating
temperature TOPR No condensation -40 +85 C Output precision TACR Ta=+25 °C,VDD=2.7 V to 5.5 V 5.0 C
■Frequency characteristics Temperature
sensitivity VSE -40 CTa+85 C,VDD=2.7 V to 5.5 V -7.3 -7.8 -8.3 mV/ C
Item Symbol Conditions Range Unit Linearity NL -40 CTa+85 C,VDD=2.7 V to 5.5 V
2.0 %
Frequency
precision f /f Ta=+25 C,VDD=3.0 V B:523 (*1) 10-6 Temperature
detection range TSOP NL ±2.0 %,VDD=2.7 V to 5.5 V -40 +85 C
Oscillation
Start up time tSTA Ta=+25 C,VDD=2.4 V 3.0 Max. s Output resistance R0 Ta=25 C,VTEMP pins,VDD=2.7 V to 5.5 V
GND standard and VDD standard 1.0 3.0 k
Frequency
temperature
characteristics TOP Ta=-10 C to +70 C
VDD=3.0 V ,+25 C +10 / -120 10-6
Load condition CL VDD=2.7 V to 5.5 V 100 pF
Frequency
voltage characteristics f/V Ta=+25 C,
VDD=1.6 V to 5.5 V 2.0 Max. 10-6/V RL VDD=2.7 V to 5.5 V 500 k
Aging fa
Ta=+25 C,
VDD=3.0 V First year 5.0 Max. 10-6/year Response time tRSP VDD=3.3 V
CL=50 pF, RL=500 k, Max. 1 °C 200 s
(*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 m etal cas e inside of the mol ding com pou nd m ay b e exp os ed on the top or b ottom of this prod uct.
This purel y cos m etic and do es n ot hav e any eff ect on qu ality, reliability or electric al specs.
0.5
0.15
0 - 10
0.8
2.0 M a x .
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 No. Pin
terminal
1 /CS0 24 VDD
2 FCON 23 (VDD)
3 FOUT 22 (VDD)
4 VTEMP 21 (VDD)
5 (VDD) 20 (VDD)
6 /IRQ 19 (VDD)
7
A
0 18 CS1
8 A1 17 D0
9
A
2 16 D1
10
A
3 15 D2
11 /RD 14 D3
12 GND 13
/
WR
No. Pin
terminal No. Pin
terminal
1
CS0 18 VDD
2 FOUT 17 (VDD)
3 /IRQ 16 (VDD)
4
A
0 15 CS1
5 A1 14 D0
6
A
2 13 D1
7 A3 12 D2
8
/
RD 11 D3
9 GND 10 /WR
4-bit REAL TIME CLOCK MODULE
RTC - 7301SF / DG
Built-in crystal unit 32.768 kHz with frequency adjusted
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)
Built-in alarm and timer interrupt functions.
Built-in semiconductor temperature sensor
(Voltage output: -7.8 mV / C, RTC-7301SF)
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 A / 3 V Typ.)
High speed parallel interface compatible with SRAM
FOU T
CONTROLLER
FOU T
FCO N
INTERRUPTS
CONT ROLLER
BUS
IN TERFACE
CIRCUIT
TIMER
REGISTER
ALARM
REGISTER
Tem perature
Sensor CLOCK
and
CALENDAR
OSC
32.768 kHz
DIVIDER
CONTROL
REG IST ER
and
SYSTEM
CONTROLLER
/ IR Q
Control Line
VTEM P
Dig i ta l Trimm ing
REGISTER
A
0 A3
/ R D
D0 D3
/ WR
/ C S0
CS1
1
27301SF
7301DG
1
Product Number (Please contact us)
RTC-7301SF : Q42730182000200
RTC-7301DG : Q42730112000200
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*About the products without the Pb-free mark.
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Notice
• This material is subject to change without notice.
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