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參數(shù)資料
| 型號： | RX-4581NB |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO22 |
| 封裝： | ROHS COMPLIANT, SON-22 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 304K |
| 代理商： | RX-4581NB |
Actual size
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Block diagram
Overview
CLOCK
and
CALENDAR
TIMER
REGISTER
ALARM
REGISTER
FOUT
CONTROLLER
CONTROL
REGISTER
and
SYSTEM
CONTROLLER
DIVIDER
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
OSC
32.768 kHz
FOUT
FOE
/ AIRQ
D I
/ TIRQ
DO
CLK
CE1
CE0
RAM
128 bit
( 8 bit × 16 )
Built-in SRAM
Include 128 bit ( 8 bit
× 16 ) RAM.
Interface Type
Serial interface in 4 lines form.
It is possible to make it to 3 lines by wired-OR connecting
DI and DO pins.
32.768 kHz frequency output function
FOUT pin output (C-MOS output), CL=30 pF
FOE pin enables output on/off control.
Timer function
Timer function can be set up between
1/4096 second and 4095 minutes.
It is recorded automatic to TF-bit at the time of event
occurrence,and possible to output with /TIRQ pin output
(open-drain output).
Interrupt function
Alarm interrupt function , and timer interrupt function.
Pin Function
Terminal connection / Externaldimensions
(Unit:mm)
Signal Name Input/Output
Function
CE0
Input
The chip enabled input pin 0.
( It has a built -in pull-down resistance )
CE1
Input
The chip enabled input pin 1.
( It does not have a built -in pull-down resistance )
CLK
Input
The shift clock input pin for serial data transfer.
DI
Input
The data input pin for serial data trasfer.
DO
Output
The data output pin for serial data trasfer.
FOUT
Output
This pin outputs the reference clock signal at 32.768 kHz ( CMOS output ).
High impedance at the time of output off.
FOE
Input
The input pin for the FOUT output control.
/ AIRQ
Output
The open drain output pin for alarm and time update interrupts.
/ TIRQ
Output
The open drain output pin for timer interrupt.
VDD
-
Connected to a positive power supply.
GND
-
Connected to a ground.
RX 4581 NB
1.
GND
22.
N.C.
2.
CE1
21.
N.C.
3.
CE0
20.
N.C.
4.
DI
19.
N.C.
5.
DO
18.
N.C.
6.
CLK
17.
N.C.
7.
/ TIRQ
16.
N.C.
8.
/ AIRQ
15.
N.C.
9.
FOE
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 w ill not affect any quality, reliability or electrical spec.
Specifications (characteristics)
* Refer to application manual for details.
!
! Recommended Operating Conditions
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Power voltage
VDD
-
1.6
3.0
5.5
V
Clock voltage
VCLK
-
1.6
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
Oscillation
start-up time
tSTA
Ta = +25
°C
VDD = 3.0 V
3 Max.
s
Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)
!
! Current consumption characteristics
T a =
40 °C to +85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
VDD
= 5 V
0.6
1.2
IBK
CE0, CE1 = GND
FOE = GND
FOUT ;output OFF
( Hi - z )
VDD
= 3 V
0.4
0.8
A
VDD
= 5 V
8.0
20.0
Current
Consumption
I32k
CE0, CE1 = GND
FOE = VDD
FOUT ;
32.768 kHz output ON
CL = 30 pF
VDD
= 3 V
5.0
12.0
A
Built-in SRAM
SERIAL-INTER FACE REA L TIME C LOCK M ODULE
RX - 4581 NB
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: 4-wire serial interface
Operating voltage range
: 1.6 V to 5.5 V
Wide Timekeeper voltage range
: 1.6 V to 5.5 V
Low backup current
: 0.4
A / 3 V ( Typ. )
Built-in SRAM
: Built-in 128 bit ( 8 bit
× 16 ) RAM.
32.768 kHz frequency output function : C-MOS output With Control Pin
The various functions include full calendar, alarm, timer.
Product Number (Please contact us)
RX-4581NB : Q41458191000200
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RX-4581NBB | 制造商:Epson Toyocom Corporation 功能描述:Cut Tape |
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