rtc-4701je Epson Electronics America, Inc., rtc-4701je Datasheet
rtc-4701je
Manufacturer Part Number
rtc-4701je
Description
Built-in Temperature Sensor Serial-interface Real Time Clock Module
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.RTC-4701JE.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RTC-4701JE
Manufacturer:
EPSON/爱普生
Quantity:
20 000
Company:
Part Number:
rtc-4701je:B3 ROHS
Manufacturer:
Epson
Quantity:
500
Signal
VTEMP
Temperature
Output tolerance
Temperature
Linearity
Temperature
Output resistance
/SOFF
/ AIRQ
/ TIRQ
Built-in Temperature Sensor
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC - 4701 JE
FOUT
DATA Bi-directional
GND
FOE
Output resistance ( Ro )
Wide Timekeeper voltage range
CLK
V
Temperature sensitivity
Linearity
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
Operating voltage range
Built-in temperature sensor
32.768 kHz frequency output function : C-MOS output With Control Pin
Function of time and calendar, the various interrupt function etc.
Name
CE
output voltage
sensitivity
detection range
Block diagram
Pin Function
DD
Temperature sensor characteristics
Real time clock module
Real time clock module
Real time clock module
Real time clock module
Item
Input /
Output
Output
Output
Output
Output
Input
Input
Input
Input
VTEMP
/ SOFF
FOUT
FOE
/ AIRQ
/ TIRQ
DATA
CLK
CE
-
-
Symbol
V
T
T
The chip enabled input pin.
The shift clock input pin for serial data transfer.
The data input / output pin for serial data
The voltage output pin for the
The input pin for the temperature sensor control.
Output 1 pin ( N-ch open drain )
Output 2 pin ( N-ch open drain )
Connected to a positive power supply.
Connected to a ground.
V
TEMP
R
ACR
SOP
V
Ro =
NL
SE
(Built -in pull-down resistance)
transfer.
FOE input
temperature sensor ( analog ).
O
SE
NL =
HIGH
LOW
Temperature
32.768 kHz
= ( V ( +85 C ) V ( 40 C ) ) / 125 [ mV / C ]
OSC
Sensor
VTEMP pin, T
GND based output voltage
T
-40 C
-40 C
VTEMP pin, T
GND standard and V
a
NL
= +25 C
If not specifically indicated, GND = 0 V , V
32.768 kHz output
output OFF
a
b
V
1
1
T
T
2.0 %
Condition
a
a
Function
FOUT
CONTROLLER
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
[
a
a
100 [ % ]
FOUT output
= +25 C
= +25 C
DIVIDER
+85 C
+85 C
]
: 3-wire serial interface
: 1.6 V to 5.5 V
: 1.6 V to 5.5 V
: Detects temperature.
Converts output to analog voltage
DD
C-MOS output
/
Hi - z
standard
NB
a : Maximum deviation between the measured value of
b : Difference between the measured values at
VTEMP and approximate straight line.
40 C and +85 C.
http://www.epsontoyocom.co.jp
CLOCK
CALENDAR
TIMER
ALARM
CONTROL
SYSTEM
Min.
-7.1
and
REGISTER
REGISTER
REGISTER
CONTROLLER
40
and
DD
= 2.7 V to 5.5 V , T
1.480
Typ.
-7.6
1.0
10.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Terminal connection / External dimensions
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
Control Line
V
FOUT
CE
/ AIRQ
/ TIRQ
CLK
DATA
FOE
VTEMP
/ SOFF
DD
Max.
+ 85
-8.1
a
3.0
= 40 C to +85 C
5.0
2.0
Actual size
RTC-4701JE
RTC
mV / C
VSOJ
Unit
k
%
V
C
C
6.0
5.4
4701 JE
20 pin
0.2
1.5
32.768 kHz frequency output function
Built-in temperature sensor
The various interrupt function
Max.
Overview
Output voltage
VTEMP
• Diode temperature sensor (analog voltage output)
• FOUT pin output (C-MOS output), CL=30 pF
• FOE pin enables output on/off control.
• 12 bit additional counter. ( to 4095 count )
• Timer function can be set up between
• Alarm function can be set to day of week, hour, or minute.
1/4096 second and 255 minutes.
RTC-4701NB
20.
19.
18.
17.
16.
15.
14.
13.
12.
11.
temperature sensor operating voltage : 2.7 V to 5.5 V
temperature sensor tolerance :
voltage output (analog): 7.6 mV / C Typ.
[ V ]
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
GND
b
40
a
* Refer to application manual for details.
Approximate
straight line
V ( 40 C )
10.
11.
1.
2.
3.
4.
5.
6.
7.
8.
9.
GND
/ SOFF
VTEMP
FOE
DATA
CLK
/ TIRQ
/ AIRQ
CE
FOUT
V
0
DD
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
Temperature
a
RTC
SON
5 C ( T
5.0
Measured
4.8
4701 NB
22 pin
0.2
a
= +25 C )
+85
1.3
a
0.1
V(+85 C )
(Unit:mm)
22.
21.
20.
19.
18.
17.
16.
15.
14.
13.
12.
Ta
[ C]
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
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