RTC-7301SF Datasheet PDF - Epson Company

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RTC-7301SF
Epson Company

Part Number RTC-7301SF
Description 4-bit REAL TIME CLOCK MODULE
Page 1 Pages


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Real time clock module
4-bit REAL TIME CLOCK MODULE
RTC - 7301SF / DG
Built-in crystal oscillator 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 µA / 3 V Typ.)
High speed parallel interface compatible with SRAM
Lead(Pb)-free : Contains high melting temperature type solder (Pb85 %)
exempted by RoHS directive.
Actual size
RTC-7301SF
RTC-7301DG
www.DataSheeBt4loUc.ckomdiagram
32.768 kHz
OSC
DIVIDER
1
VTEMP
F
F
OU
CO
TN
2
/ IRQ
A0 A3
D0 D3
/ WR
/ RD
/ CS0
CS1
T em perature
Sensor
1
7301SF
7301DG
FOUT
CONTROLLE
R
IN T E R R U P T S
CONTROLLER
BUS
INTERFACE
CIRCUIT
Control Line
Digital Trim ming
REGISTER
CLOCK
and
CALENDAR
T IM E R
REGISTER
ALARM
REGISTER
CONTROL
REGISTER
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 connection
RTC-7301SF (SSOP 24-pin)
10.2 ± 0.3
#24 #13
R7301
E 123 4A
5.4
#1 #12
No. Pin
terminal
1 /CS0
2 FCON
3 FOUT
4 VTEMP
5 (VDD)
6 /IRQ
7 A0
8 A1
9 A2
10 A3
11 /RD
12 GND
No. Pin
terminal
24 VDD
23 (VDD)
22 (VDD)
21 (VDD)
20 (VDD)
19 (VDD)
18 CS1
17 D0
16 D1
15 D2
14 D3
13 /WR
RTC-7301DG (DIP 18-pin)
23.1 Max.
#18 #10
RTC7301
E 123 4A
#1 #9
No. Pin
terminal
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 /WR
7.62
0.8 0.36
2.0 Max.
0 Min.
0.15
0.5
0° - 10°
1.52
0.46
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
2.54
0.2 4.2
Min. Max.
2.54
Min.
0° -15°
0.25
(Unit:mm)
Specifications (characteristics)
Absolute Max. rating
Item
Symbol
Supply voltage VDD
Input voltage
VIN
Output voltage(1) VOUT1
Output voltage(2) VOUT2
Storage
temperature
TSTG
Operating range
Condition
VDD to GND
Input terminal,
D0 to D3 pins
/IRQ pin
FOUT,D0-D3,VTEMP pin
Stored as bare product
after unpacking
Min.
-0.3
GND-0.3
-55
Item
Power voltage
Clock voltage
Operating
temperature
Symbol
VDD
VCLK
TOPR
Condition
-
-
No condensation
Min.
2.4
1.6
-40
GND=0 V
Max.
+7.0
Unit
VDD+0.3
+8.0
VDD+0.3
V
+125
°C
GND = 0 V
Max.
Unit
5.5 V
+85 °C
Frequency characteristics
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
Condition
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)
FOUT =Output OFF
VTEMP=Output OFF
IDD1
IDD2
Condition
/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
µA
- 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
VTEMP
Condition
Ta=+25 °C,GND based output voltage
VTEMP pins,VDD=2.7 V to 5.5 V
Min. Typ. Max.
1.470
Unit
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 °CTa+85 °C,VDD=2.7 V to 5.5 V
-40 °CTa+85 °C,VDD=2.7 V to 5.5 V
NL±2.0 %,VDD=2.7 V to 5.5 V
-7.3
-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
Load condition
CL
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 µs
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