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

Real time clock module
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 µA / 3 V Typ.)
•High speed parallel interface compatible with SRAM
Epson Toyocom
Product Number (Please contact us)
RTC-7301SF : Q42730181000200
RTC-7301DG : Q42730111000200
ARcTtCua-7l 3si0z1eSF RTC-7301DG
Block diagramç
∗1
V TE MP
FOUT_∗2
FCON
/ IRQ
A 0 − A3
D0 − D3
/ WR
/ RD
/ CS0
CS1
3 2.768 kH z
OSC
D IVID ER
T em p era ture
Se nso r
∗1
7301SF
7301D G
FOUT
C ON T R OLLER
IN TE RR U P TS
C ON T R OLL ER
BUS
INT E RF AC E
C IR C U IT
C on trol Lin e
D igital T rim m ing
REGISTER
C LOC K
and
C ALE ND AR
TIME R
REGISTER
ALAR M
REGISTER
CO NT R OL
R EG IST ER
and
SYSTEM
CO NT R OLLE R
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
RTC-7301S F (SSOP 24-pin)
10 .2 ± 0 .3
#24
#13
R7301
E 123 4A
5. 4
#1
#12
No . Pi n
t erm inal
1 /CS0
2
F CO N
3
F O UT
4
VT EMP
5
(V DD)
6 /IRQ
7
A0
8
A1
9
A2
10 A3
11 /RD
12 GND
No. Pin
te rm inal
24 VD D
23 (VD D)
22 (VD D)
21 (VD D)
20 (VD D)
19 (VD D)
18 CS1
17 D0
16 D1
15 D2
14 D3
13 /WR
RTC-7301DG (DIP 18- pin)
23.1 Ma x.
#18
#10
R TC 73 01
E 123 4A
#1
#9
No. Pin
te rm inal
1 /CS 0
2
F OU T
3 /IRQ
4
A0
5
A1
6
A2
7
A3
8 /RD
9 GND
No. Pin
term in al
1 8 VDD
1 7 (VDD )
1 6 (VDD )
1 5 CS1
14 D0
13 D1
12 D2
11 D 3
1 0 /W R
7.62
0 .8
0. 36
2 .0 Max.
0 Min.
0. 15
0. 5
0 ° - 10 °
1. 52
0. 46
Me ta l ma y b e exp o sed o n th e to p o r bo tt om of th is p rod u ct. Th is will no t af fe ct an y q u ality, re liab ilit y o r e le ct rica l s pe c.
2. 54
0 .2 4. 2
Min. Max.
2. 54
Min .
0° -1 5°
0 .2 5
(Unit:mm)ç
Specifications (characteristics)
■Absolute Max. rating
Item
Sym bol
Supply voltage VDD
Input voltage VIN
Output voltage(1) VOUT1
Output voltage(2) VOUT2
Storage
tem perature
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
Sym bol
Condition
Min.
Power voltage VDD
-
2.4
Clock voltage VCLK
-
1.6
Operating
tem perature
TOPR
No condensation
-40
■Frequency characteristics
GND=0 V
Ma x.
Unit
+7.0
VDD+0.3
V
+8.0
VDD+0.3
+125
°C
GND = 0 V
Ma x.
Unit
5.5
V
+85
°C
Item
Frequency
precis ion
Os cillation
Start up time
Frequency
tem perature
characteris tics
Frequency
voltage characteristics
Sym bol
∆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 Firs t year
Range
B:5±23 ^(*1)
3.0 Ma x.
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
Sym bol
Current consumption
(When non-accessed)
IDD1
FOUT =Output OFF
VTEMP=Output OFF
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(OF F)
VDD=3 V
Min. Typ. Ma x. 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
Sym bol
Condition
Min. Typ. Ma x. Unit
VTEMP ^{Ta=+25 °C,GND based output voltage}
1.470
V
VTEMP pins ,VDD=2.7 V to 5.5 V
Output precision TACR
Ta=+25 °C,VDD=2.7 V to 5.5 V
±5.0 °C
Temperature
s ens itivity
Linearity
Temperature
detection range
VS E
∆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 kΩ
CL
Load condition
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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