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参数资料
| 型号： | RTC-4701NB |
| 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, PDSO22 |
| 封装： | SON-22 |
| 文件页数： | 1/2页 |
| 文件大小： | 537K |
| 代理商： | RTC-4701NB |
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 kHz
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 will 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 Temperature Sensor
SERIAL-INTERFACE REAL TIME CLOCK MODULE
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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