參數資料
| 型號： | RX-4801JE:UB |
| 廠商： | EPSON |
| 文件頁數： | 1/1頁 |
| 文件大小： | 0K |
| 描述： | IC REAL TIME CLOCK MODULE |
| 標準包裝： | 1 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年 |
| 存儲容量： | 128b（16 x 8） |
| 時間格式： | HH:MM:SS（24 小時） |
| 數據格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 電源電壓： | 1.6 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.6 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-LSSOJ |
| 供應商設備封裝： | 20-VSOJ |
| 包裝： | 散裝 |
| 其它名稱： | Q5730413A |
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Actual size
Product Number (Please contact us)
RX-4801SA : X1B000021xxxx00
RX-4801JE : X1B000041xxxx00
Built-in 32.768 kHz-DTCXO, High Stability
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 4801 SA / JE
Built in frequency adjusted 32.768 kHz crystal unit and DTCXO.
Interface Type
: 4-wire serial interface
Interface voltage range
: 1.6 V to 5.5 V
Temp.compensated voltage range: 2.2 V to 5.5 V
Wide Timekeeper voltage range : 1.6 V to 5.5 V
32.768 kHz frequency output function : C-MOS output With Control Pin
The various functions include full calendar, alarm, timer.
RX-4801SA
RX-4801JE
Block diagram
Overview
High Stability
UA
± 1.9 x 10
-6
/
0 C to +40 C
( Equivalent to 5 seconds of month deviation )
± 3.4 x 10
-6
/
-40 C to +85 C
( Equivalent to 9 seconds of month deviation )
UB
± 3.8 x 10
-6
/
0 C to +50 C
( Equivalent to 10 seconds of month deviation )
± 5.0 x 10
-6
/
-40 C to +85 C
( Equivalent to 13 seconds of month deviation )
32.768 kHz frequency output function
FOUT pin output (C-MOS output), CL=30 pF
Output selectable
< 32.768 kHz, 1024 Hz, 1 Hz >
The various interrupt
Timer Function can be set up between
1/ 4096 second and 255 minutes.
Alarm Function can be set to day of week,
day, hour, or minute.
*It is possible to use it by the terminal connection as
32.768 kHz-DTCXO.
32kHz
DTCXO
32.768 kHz
CLOCK
and
CALENDAR
DIVIDER
TIMER
REGISTER
ALARM
REGISTER
FOUT
CONTROLLER
CONTROL
REGISTER
and
SYSTEM
CONTROLLER
INTERRUPT
CONTROLLER
INTERFACE
CIRCUIT
FOUT
FOE
/ INT
CLK
D I
DO
CE
Pin Function
Terminal connection / External dimensions
(Unit:mm)
RX
4801 SA
1.
CE
14.
DI
2.
CLK
13.
DO
3.
FOUT
12.
T2(VPP)
4.
N.C.
11.
G
5.
TEST
10.
/ INT
6.
VDD
9.
N.
7.
FOE
ND
C.
10
.1
±
0.
2
5.0
7.4 ± 0.2
3.
2
±
0.
1
1.2
7
8.
N.C.
SOP
14 pin
RX
4801JE
1.
/ INT
20.
N.C.
2.
GND
19.
N.C.
3.
T2(Vpp)
18.
N.C.
4.
DO
17.
N.C.
5.
DI
16.
N.C.
6.
CE
15.
N.C.
7.
CLK
14.
N.C.
8.
FOUT
13.
N.C.
9.
N.C.
12.
N.C.
10.
FOE
7.
0
±
0.
3
5.4
6.0 ± 0.2
1.5 Max.
0
.65
11.
VDD
VSOJ
20 pin
Metal may be exposed on the top or bottom of this product.
This will not affect any quality, reliability or electrical spec.
Specifications (characteristics)
Refer to application manual for details.
32.768 kHz-DTCXO Frequency temperature characteristics (Example)
Frequency tem perature characteristics
-30
-25
-20
-15
-10
-5
0
5
10
-45
-35
-25
-15
-5
5
15
25
35
45
55
65
75
85
Temperature (C)
F
re
quenc
y
t
o
ler
anc
e
(
×10
-6
)
Tuning fork X'tal
32.768 kHz DTCXO
Signal Name
I / O
Function
/ INT
Output
The open drain output for interrupt.
GND
-
Connected to a ground
T2(VPP)
-
* Use by the manufacture for testing.
( Do not connect externally.)
DO
Output
The data output pin for serial data transfer.
D I
input
The data input pin for serial data transfer.
CE
input
The chip enable input pin.
CLK
input
The shift clock input pin for serial data transfer.
FOUT
Output
The pin outputs the reference clock signal.
( CMOS output )
FOE
input
The input pin for the FOUT output control.
VDD
-
Connected to a positive power supply
Electrical Characteristics
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Interface voltage
VDD
1.6
3.0
5.5
V
Interface voltage
Temp. compensated
VTEM
Temp. compensated voltage
2.2
3.0
5.5
V
Voltage
Clock voltage
VCLK
-
1.6
3.0
5.5
V
Operating temperature
TOPR
-
+25
+85
C
40
±1.9
1
Ta = 0 C to +40 C
UA
±3.4
2
Ta = -40 C to +85 C
× 10 6
Stability
Δ f / f
±3.8
3
Ta = 0 C to +50 C
UB
±5.0
4
Ta = -40 C to +85 C
Backup Mode
Current consumption (1)
IBK1
VDD = 5V
-
1.2
3.4
FOE = GND,
μA
/INT = VDD
Current consumption (2)
FOUT output : OFF
IBK2
VDD = 3V
-
0.8
2.1
1 )
Equivalent to 5 seconds of month deviation.
2 )
Equivalent to 9 seconds of month deviation.
3 )
Equivalent to 10 seconds of month deviation.
4 )
Equivalent to 13 seconds of month deviation.
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