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參數(shù)資料
| 型號(hào)： | RX-5412SF: B3 PURE SN |
| 廠商： | EPSON |
| 文件頁(yè)數(shù)： | 1/1頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC REAL TIME CLOCK 24-SOP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 時(shí)間事件記錄器 |
| 特點(diǎn)： | 警報(bào)器，閏年，SRAM，監(jiān)視計(jì)時(shí)器 |
| 時(shí)間格式： | HH:MM:SS（24 小時(shí)） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.4 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SOP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | SER3777DKR |
Actual size
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Product Number (Please contact us)
X1B000082xxxx00
Built-in EVENT RECORDER FUNCTION
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 5412 SF
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: 4-wire serial interface
Operating voltage range
: 2.5 V to 5.5 V
Wide Timekeeper voltage range
: 1.4 V to 5.5 V
Low backup current
: 0.5
μA / 3 V ( Typ. )
Built-in SRAM
: Built-in 2048 bit ( 8 bit
× 256 )
The various functions include full calendar, alarm, timer,
event record, watch dog timer, automatic power switching function.
Block diagram
Overview
Event recorder function
4 input ports are available for event recorder request.
Event recorder data are recorded in inside memory according to user setting.
Power switching circuit
When VDD voltage are down, real time clock module power source are
switched to VBAT from VDD.
Built-in SRAM (256 bytes)
Available built in SRAM for users memory and event recorder memory.
Watch dog timer function
Watch dog time, it can set from 1.95 ms to 468.75 ms
Voltage drop detection
When real time clock module return from backup mode, this function indicate
The reliability of real time clock module data.
Periodic timer function
In a timer period, it can set from 1/4096 seconds to 4095 minutes.
Alarm function
Alarm by combination of day of week, day, hours, and minutes.
:I/O(VDD Voltage Operation)
:I/O(VDD&VBK Voltage Operation)
Pin Function
External dimensions
(Unit:mm)
Specifications (characteristics)
*Refer to application manual for details.
Electrical Characteristics
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Power voltage
VDD
2.5
3.0
5.5
V
Clock voltage
VCLK
1.4
3.0
5.5
V
Operating temperature
TOPR
40
+25
+85
°C
Frequency tolerance
Δ f / f
Ta = +25
°C, VDD = 3.0 V
5
± 23 *
× 106
Current Consumption
IDD1
Back up operation , CE = GND , /IRQ = OFF
VBK=5 V
0.5
1.0
A
IDD2
VBK=3 V
0.5
1.0
*Equivalent to 1 minute of monthly deviation.
Signal
name
Pin
No.
I / O
Function
Signal
name
Pin
No.
I / O
Function
VSS
1
-
GND
(VSS)
24
-
EVENT0
2
Input
Event input
(VSS)
23
-
EVENT1
3
Input
Event input
(VSS)
22
-
VBK
4
-
Backup power supply
(VSS)
21
-
EVENT2
5
Input
Event input
(VSS)
20
-
(VSS)
6
-
(VSS)
19
-
EVENT3
7
Input
Event input
/S-IRQ1
18
Output
Event record interrupt output
(open drain)
CE
8
Input
Chip enabled input
/S-IRQ0
17
Output
Event record interrupt output
(open drain)
CLK
9
Input
Clock input pin for serial data
transmission
WDI
16
Input
Watch dog input
(open drain)
DO
10
Output
Data output pin for serial data
transmission
/WDO
15
Output
Watch dog output
(open drain)
DI
11
Input
Data input pin for serial data
transmission
N.C.
14
-
/R-IRQ
12
Output
RTC function interrupt output
(open drain)
VDD
13
-
Power supply
Interrupts & Reset
Controller
Alarm
OSC
Bus
Interface
Circuit
CLK
32.768 kHz
Control
System
Divider
Clock
Digital
Trimming
/S-IRQ0,1
D I
Timer
EVENT0~3
Calendar
DO
/R-IRQ
CE
Controller
Register
Voltage
Detector
Switching
Circuit
VDD
VBK
and
Register
Internal
VDD
RAM
2 k bit
( 8 x 256 )
Event Record
Register
Event Input
Detector
WDI
/WDO
Register
Watch Dog
Interrupts
Controller
4
2
#12
#1
10.2
± 0.3
#24
#13
5.4
7.
8
±0.
3
0.5
0.15
0
° - 10°
R5412
E M12 3A
0.8
2.0 Max.
0.36
0 Min.
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