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参数资料
| 型号： | RX-4575LC |
| 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, PDSO12 |
| 封装： | ROHS COMPLIANT, VSQJ-12 |
| 文件页数： | 1/2页 |
| 文件大小： | 289K |
| 代理商： | RX-4575LC |
Actual size
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Block diagram
Overview
32.768 kHz
ALARM
REGISTER
TIMER
REGISTER
CLOCK and
CALENDAR
INTERRUPTS
CONTROLLER
OUTPUT
CONTROLLER
DIVIDER
FOUT
/ IRQN
/ EIRQN
BUS
INTERFACE
CIRCUIT
CE 1
CLK
DATA
CE 0
CONTROL
REGISTER
SHIFT REGISTER
OSC
FOE
EVENT DETECT
REGISTER
INPUT
CONTROLLER
EINA
EINB
Event detection.
Selectable Hi detection or Lo detection.
Recognition of detection is available both the hardware
interrupt and the monitor via software.
Automatic interrupt release mode is available.
The all 'OR' interrupt output is possible via alarm,
timer and event detection.
Performance of event input terminal.
As for the chattering filter,
following are prepared for. ( 8ms, 31ms, 62ms, 125ms )
Built-in resistor connect and release is possible via
software.
Selectable pull-up or pull-down.
Timer function
Built in 12 bit counter.
Timing period are 1 min, 1 sec, 64Hz, 4096Hz.
Alarm function
Alarm setting is possible by combination of a day,
hours, and minutes.
Pin Function
Terminal connection / External dimensions (Unit:mm)
Signal Name Input / Output
Functions
EINA
EINB
Input
External event input pin.
CE 0
CE 1
Input
Interface is possible when both CE0 and CE1 is high level.
CLK
Input
Serial Clock input pin.
DATA
Bidirectional
Data input and output pin.
FOUT
Output
32.768 kHz clock output pin ( C-MOS ) .
Output is Hi-Z when OFF.
FOE
Input
32kHz is output when input is Hi, 32kHz is OFF when input is Lo.
/ EIRQ
Output
Interrupt output pin. ( N-ch open drain )
/ IRQ
Output
Interrupt output pin. ( N-ch open drain )
VDD
-
Connected to a positive power supply.
GND
-
Connected to a ground.
RX
4575 LC
1. EINA
12.
VDD
2. EINB
11.
CE1
3. /EIRQ
10.
CLK
4. /IRQ
9.
DATA
5. FOE
8.
CE0
6. FOUT
2.4
3.
6
1.
2
Ma
x
.
2.8
0.
5
7.
GND
VSOJ
12pin
Specifications (characteristics)
Refer to application
!
! Recommended Operating conditions
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Power voltage
VDD
1.6
3.0
5.5
V
Clock voltage
VCLK
1.3
3.0
5.5
V
Operating
Temperature
TOPR
40
+25
+85
°C
!
! Frequency characteristics
Item
Symbol
Condition
Rating
Unit
Frequency
tolerance
f / f
Ta = +25 °C
VDD = 3.0 V
5 ± 23 *
× 106
Ta = +25
°C
VDD = 1.6 V
1 Max.
s
Oscillation
Start-up time
tSTA
Ta = 40 °C +85 °C
VDD = 1.6 V
3 Max.
s
*Equivalent to 1 minute of monthly deviation
!
! Current consumption characteristics
Ta =
40 °C +85 °C
Item
Symbol
Condition
Min.
Typ.
Max. Unit
VDD
= 5 V
0.45
0.9
IBK
CE0, CE1 = GND
/ IRQ, / EIRQ= OFF
FOUT : output OFF
Event detection OFF
VDD
= 3 V
0.35
0.7
A
VDD
= 5 V
8.0
20.0
Current
Consumpti
on
I32k
CE0, CE1 = GND
/ IRQ, / EIRQ= OFF
FOUT ; CL = 30 pF
32.768 kHz output ON
VDD
= 3 V
5.0
12.0
A
Built-in external event detection.
SERIAL INTERFACE REAL TIME CLOCK MODULE
RX - 4575 LC
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: 3-wire serial interface
Operating voltage range
: 1.6 V
5.5 V
Wide timekeeper voltage range
: 1.3 V
5.5 V
Low backup current
: 0.35
A / 3 V ( Typ. )
External event detection.
: Chattering free input port
2.
(The various functions include full calendar, alarm, timer.)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RX-4581NB | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 0.4uA@3V(Typ.) 1.6 to 5.5V 6.3~4.8~1.3mm +85 -40 5}23ppm@+25/3.0V 4VAC^[tF[X 6.3mm 4.8mm 1.3mm 制造商:Epson Toyocom 功能描述:RTC module,4-Wire Serial,Alarm,128b SRAM |
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