RTC-7301SF_15 Datasheet, PDF (1/2 Pages) Epson Company – REAL TIME CLOCK MODULE (4-bit)

Real time clock module
REAL TIME CLOCK MODULE (4-bit)
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
Product Number (Please contact us)
RTC-7301SF : Q42730182000200
RTC-7301DG : Q42730112000200
Actual size
RTC-7301SF
RTC-7301DG
Block diagramç
32.768 kHz
OSC
D IV ID E R
1
VTEMP
FO UT _2
FCON
/ IRQ
A0  A3
D0  D3
/ WR
/ RD
/ CS0
CS1
T em perature
Sensor
1
7301SF
7301DG
FOUT
CONTROLLER
IN T ER R U PT S
CO NT RO LLER
BUS
IN T E R F A C E
C IR C U IT
C ontrol Line
D igital T rim ming
R E G IS T E R
CLOCK
and
CALENDAR
T IM E R
R E G IS T E R
ALARM
R E G IS T E R
CONTROL
R E G IS T E R
and
SYSTEM
CONTROLLER
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 connectionç
(Unit:mm)ç
RTC-7301SF (SSOP 24-pin)
10.2  0.3
#24
#13
R7301
E 123 4A
5.4
#1
#12
No. Pin
term in al
1 /CS0
2
FCON
3
FOUT
4
VT EMP
5 (VDD)
6 /IRQ
7 A0
8 A1
9 A2
10 A3
11 /RD
12 GND
No. Pin
term inal
24 VDD
23 (VDD)
22 (VDD)
21 (VDD)
20 (VDD)
19 (VDD)
18 CS1
17 D0
16 D1
15 D2
14 D3
13 /W R
RTC-7301DG (DIP 18-pin)
23.1 Max.
#18
#10
RTC7301
E 123 4A
#1
#9
No. Pin
term inal
1 /CS0
2
FOUT
3 /IRQ
4 A0
5 A1
6 A2
7 A3
8 /RD
9 GND
No. Pin
terminal
18 VDD
17 (VDD)
16 (VDD)
15 CS1
14 D0
13 D1
12 D2
11 D3
10 /W R
7.62
0.8
0.36
2.0 Max.
0 Min.
0.15
0.5
0 - 10
1.52
0.46
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 electric al specs.
2 .5 4
0.2 4.2
Min. Max.
2.54
Min.
0 -15
0 .2 5
Specifications (characteristics)
■Absolute Max. rating
GND=0 V
Item
Symbol
Supply voltage VDD
Input voltage VIN
Output voltage(1) VOUT1
Output voltage(2) VOUT2
Storage
temperature
TSTG
■Operating range
Conditions
VDD to GND
Input terminal,
D0 to D3 pins
/IRQ pin
FOUT,D0-D3,VTEMP pin
Stored as bare product.
Min.
-0.3
GND-0.3
-55
Max.
Unit
+7.0
VDD+0.3
V
+8.0
VDD+0.3
+125
C
GND = 0 V
Item
Symbol
Conditions
Power voltage VDD
-
Clock voltage VCLK
-
Operating
temperature
TOPR
No condensation
■Frequency characteristics
Min.
Max.
Unit
2.4
1.6
5.5
V
-40
+85
C
Item
Frequency
precision
Oscillation
Start up time
Frequency
temperature
characteristics
Frequency
voltage characteristics
Symbol
f /f
tSTA
TOP
f/V
Aging
fa
(*1) Please ask tighter tolerance
Conditions
Ta=+25 C,VDD=3.0 V
Ta=+25 C,VDD=2.4 V
Ta=-10 C to +70 C
VDD=3.0 V ,+25 C
Ta=+25 C,
VDD=1.6 V to 5.5 V
Ta=+25 C,
VDD=3.0 V First year
Range
B:523 ^(*1)
3.0 Max.
Unit
10^-6
s
+10 / -120
10^-6
2.0 Max.
5.0 Max.
10^-6/V
10^-6/year
■DC characteristics
*Refer to application manual for details.
(GND=0 V,VDD=1.6 V to 5.5 V,Ta=-40 C to +85 C)
Item
Symbol
Current consumption
(When non-accessed)
IDD1
FOUT =Output OFF
VTEMP=Output OFF
IDD2
Conditions
/CS0,/RD,/WR=VDD
A0-A3,CS1=GND
VDD=5 V
D0-D3,/IRQ=Hi-z
FOUT=Hi-z(OFF)
VTEMP=Hi-z(OFF)
VDD=3 V
Min. Typ. Max. Unit
- 1.0 2.0
A
- 0.6 1.0
Note)There is no VTEMP pin on the RTC-7301DG so standards for
the VTEMP pin within the conditions described above do not apply.
■Temperature sensor characteristics
GND=0 V,Ta=-40 C to +85 C
Item
Temperature
output voltage
Symbol
Conditions
Min. Typ. Max. Unit
VTEMP
Ta=+25 C,GND based output voltage
VTEMP pins,VDD=2.7 V to 5.5 V
-
1.470 -
V
Output precision TACR
Ta=+25 °C,VDD=2.7 V to 5.5 V
-
- 5.0 C
Temperature
sensitivity
Linearity
Temperature
detection range
VSE
NL
TSOP
-40 CTa+85 C,VDD=2.7 V to 5.5 V -7.3
-40 CTa+85 C,VDD=2.7 V to 5.5 V -
NL ±2.0 %,VDD=2.7 V to 5.5 V
-40
-7.8 -8.3 mV/ C
- 2.0 %
- +85 C
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
CL
Load condition
RL
VDD=2.7 V to 5.5 V
VDD=2.7 V to 5.5 V
-
- 100 pF
500 -
-
k
Response time
tRSP
VDD=3.3 V
CL=50 pF, RL=500 k, Max. 1 °C
Note)There is no temperature sensor function on the RTC-7301DG.
-
- 200 s