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参数资料
| 型号： | RTC-4701JE |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO20 |
| 封装： | ROHS COMPLIANT, VSOJ-20 |
| 文件页数： | 1/2页 |
| 文件大小： | 349K |
| 代理商： | RTC-4701JE |
Actual size
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Block diagram
Overview
FOUT
CONTROLLER
FOUT
FOE
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
TIMER
REGISTER
ALARM
REGISTER
Temperature
Sensor
CLOCK
and
CALENDAR
OSC
32.768 k Hz
DIVIDER
CONTROL
REGISTER
and
SYSTEM
CONTROLLER
/ AIRQ
/ TIRQ
DATA
CLK
CE
Control Line
VTEMP
/ SOFF
Built-in temperature sensor
Diode temperature sensor (analog voltage output)
temperature sensor operating voltage : 2.7 V to 5.5 V
temperature sensor tolerance : ± 5 °C ( Ta = +25 °C )
voltage output (analog): 7.6 mV / °C Typ.
32.768 kHz frequency output function
FOUT pin output (C-MOS output), CL=30 pF
FOE pin enables output on/off control.
The various interrupt function
12 bit additional counter. ( to 4095 count )
Timer function can be set up between
1/4096 second and 255 minutes.
Alarm function can be set to day of week, hour, or minute.
Pin Function
Terminal connection / External dimensions
(Unit:mm)
Signal
Name
Input /
Output
Function
CE
Input
The chip enabled input pin.
(Built -in pull-down resistance)
CLK
Input
The shift clock input pin for serial data transfer.
DATA
Bi-directional
The data input / output pin for serial data
transfer.
FOUT
Output
FOE
Input
FOE input
FOUT output
HIGH
32.768 kHz output
C-MOS output
LOW
output OFF
Hi - z
VTEMP
Output
The voltage output pin for the
temperature sensor ( analog ).
/SOFF
Input
The input pin for the temperature sensor control.
/ AIRQ
Output
Output 1 pin ( N-ch open drain )
/ TIRQ
Output
Output 2 pin ( N-ch open drain )
VDD
-
Connected to a positive power supply.
GND
-
Connected to a ground.
RTC
4701 JE
1.
VDD
20.
N.C.
2.
FOUT
19.
N.C.
3.
CE
18.
N.C.
4.
/ AIRQ
17.
N.C.
5.
/ TIRQ
16.
N.C.
6.
CLK
15.
N.C.
7.
DATA
14.
N.C.
8.
FOE
13.
N.C.
9.
VTEMP
12.
N.C.
10.
/ SOFF
7.
0
±
0.
3
5.4
6.0 ± 0.2
1.5 Max .
0.
6
5
11.
GND
VSOJ
20 pin
RTC
4701 NB
1.
GND
22.
N.C.
2.
/ SOFF
21.
N.C.
3.
VTEMP
20.
N.C.
4.
FOE
19.
N.C.
5.
DATA
18.
N.C.
6.
CLK
17.
N.C.
7.
/ TIRQ
16.
N.C.
8.
/ AIRQ
15.
N.C.
9.
CE
14.
N.C.
10.
FOUT
13.
11.
VDD
4.8
6.
3
Ma
x
.
5.0
± 0.2
0.
5
1.3
± 0.1
12.
SON
22 pin
Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.
Temperature sensor characteristics
* Refer to application manual for details.
If not specifically indicated, GND = 0 V , VDD = 2.7 V to 5.5 V , Ta = 40 °C to +85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Temperature
output voltage
VTEMP
VTEMP pin, Ta = +25 °C
GND based output voltage
1.480
V
Output tolerance
TACR
Ta = +25
°C
± 5.0
°C
Temperature
sensitivity
VSE
-40
°C ≤ Ta ≤ +85 °C
-7.1
-7.6
-8.1
mV /
°C
Linearity
NL
-40
°C ≤ Ta ≤ +85 °C
± 2.0
%
Temperature
detection range
TSOP
NL ≤ ± 2.0 %
40
+ 85
°C
Output resistance
RO
VTEMP pin, Ta = +25
°C
GND standard and VDD standard
1.0
3.0
k
Temperature sensitivity VSE = ( V ( +85 °C ) V ( 40 °C ) ) / 125 [ mV / °C ]
a
a : Maximum deviation between the measured value of
VTEMP and approximate straight line.
Linearity
NL =
b
× 100 [ % ]
b : Difference between the measured values at
40 °C and +85 °C.
V 1
Output resistance ( Ro ) Ro =
Ι
1
[
]
VTEMP
0
Measured
40
+85
Approximate
straight line
Temperature
Output voltage
[°C]
[ V ]
Ta
a
b
a
V (40 °C )
V(+85 °C )
RTC-4701JE
RTC-4701NB
Built-in Tem perature Sensor
SERIAL-INTER FACE REA L TIME C LOCK M ODULE
RTC - 4701 JE / NB
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: 3-wire serial interface
Operating voltage range
: 1.6 V to 5.5 V
Wide Timekeeper voltage range : 1.6 V to 5.5 V
Built-in temperature sensor
: Detects temperature.
Converts output to analog voltage
32.768 kHz frequency output function: C-MOS output With Control Pin
Function of time and calendar, the various interrupt function etc.
Product Number (Please contact us)
RTC-4701JE : Q41470171000200
RTC-4701NB: Q41470191000200
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