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参数资料
| 型号： | RX-8581JEB-3 |
| 厂商： | EPSON TOYOCOM CORP |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO20 |
| 封装： | VSOJ-20 |
| 文件页数： | 2/3页 |
| 文件大小： | 275K |
| 代理商： | RX-8581JEB-3 |
89
Real time clock module
90
Real time clock module
Register table
Address
Register symbol
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
0
SEC
o
40
20
10
8
4
2
1
MIN
o
40
20
10
8
4
2
1
2
HOUR
o
20
10
8
4
2
1
3
WEEK
o
6
5
4
3
2
1
0
4
DAY
o
20
10
8
4
2
1
5
MONTH
o
10
8
4
2
1
6
YEAR
80
40
20
10
8
4
2
1
7
RAM
8
MIN Alarm
AE
40
20
10
8
4
2
1
9
HOUR Alarm
AE
20
10
8
4
2
1
A
WEEK Alarm
AE
6
5
4
3
2
1
0
DAY Alarm
20
10
8
4
2
1
B
Timer Counter 0
128
64
32
16
8
4
2
1
C
Timer Counter 1
2048
1024
512
256
D
Extension Register
TEST
WADA
USEL
TE
o
TSEL1
TSEL0
E
Flag Register
o
UF
TF
AF
o
VLF
o
F
Control Register
o
UIE
TIE
AIE
o
STOP
RESET
0 : Always set this bit to “0”.
AC characteristics
Item
Symbol Min. Max. Unit
SCL clock frequency
fSCL
–
400 kHz
Tolerance spike time on bus
tSP
50
ns
Start condition set-up time tSU ; STA
0.6
s
Start condition Hold time
tHD ; STA
SCL “L” time
tLOW
1.3
SCL “H” time
tHIGH
0.6
SCL and SDA rise time
tr
–
0.3
SCL and SDA fall time
tf
Data set-up time
tSU ; DAT 100
ns
Data hold time
tHD ; DAT
0
Stop condition set-up time tSU ; STO
0.6
s
Bus free time
tBUF
1.3
Fout Duty
tw/t
45
55
%
Timing chart
Protocol
SCL
Start
Condition (s)
Start
Condition (s)
Stop
Condition (P)
tSU;STO
tSP
tHD;DAT
tSU;STA
tHD;STA
tSU;STA
tLOW
tHIGH
1/fSCL
(A)
(P)
(S)
tf
tr
(S)
tBUF
tSU;DAT
tHD;STA
Bit 7
MSB (A7)
Bit6
(A6)
Bit0
LSB
(R/W)
ACK
(A)
SDA
Block diagram
I
2C-Bus
interface
circuit
Fout controller
Divider
INT
SDA
FOUT
FOE
SCL
Clock and Calendar
Timer register
Alarm register
Control register
and
System Controller
Interrupts controller
OSC
32.768 kHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RX-8581JEB5+/-23PPM | 制造商:Epson Electronics America Inc 功能描述:I2C-Bus Interface RTC Module VSOJ 20pin |
| RX-8581SA | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 0.45uA@3V(Typ.) 1.8 to 5.5V 10.1~5.0~3.2mm +85 -40 5}23ppm@+25/3.0V I2C-BusVAC^[tFCX 10.1mm 5mm 3.2mm 制造商:Epson Toyocom 功能描述:RTC module,I2C Bus,High quality,SOP14 |
| RX-8581SA B3 | 制造商:Epson Electronics America Inc 功能描述:Real Time Clock Serial 14-Pin SOP T/R 制造商:Epson 功能描述:Real Time Clock Serial 14-Pin SOP T/R |
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