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PDF RTC-7301SF Data sheet ( Hoja de datos )
| Número de pieza | RTC-7301SF | |
| Descripción | (RTC-7301DG/SF) Application Manual | |
| Fabricantes | Epson Company | |
| Logotipo |  |
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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 °C≤Ta≤+85 °C,VDD=2.7 V to 5.5 V
-40 °C≤Ta≤+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 kΩ
Load condition
CL
RL
VDD=2.7 V to 5.5 V
VDD=2.7 V to 5.5 V
100 pF
500 kΩ
Response time
tRSP
VDD=3.3 V
CL=50 pF, RL=500 kΩ, Max. ±1 °C
Note)There is no temperature sensor function on the RTC-7301DG.
200 µs
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