RX-4574LC:B3 PURE SN Epson Toyocom Corporation, RX-4574LC:B3 PURE SN Datasheet

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RX-4574LC:B3 PURE SN

Manufacturer Part Number
RX-4574LC:B3 PURE SN
Description
IC REAL TIME CLOCK 12-VSOJ
Manufacturer
Epson Toyocom Corporation
Series
-r
Type
Clock/Calendarr

Specifications of RX-4574LC:B3 PURE SN

Features
Alarm, Leap Year
Memory Size
-
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Interface
3-Wire Serial
Voltage - Supply
1.6 V ~ 5.5 V
Voltage - Supply, Battery
1.3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
12-TSSOJ
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
NB10-029569
SER3774TR
Signal Name Input / Output
! ! ! !
Power voltage
Clock voltage
Operating
! ! ! !
Frequency
Oscillation
Small size, low profile model package
SERIAL-INTER FACE REA L TIME C LOCK MODULE
RX - 4574 LC
*Equivalent to 1 minute of monthly deviation
FOUT
FCON
/ TIRQ
/ AIRQ
DATA
CLK
CE 1
CE 0
FOUT
FCON
/ AIRQ
/ TIRQ
temperature
tolerance
Start-up time
DATA
Pin Function
GND
Specifications (characteristics)
CE0
CE1
CLK
V
Frequency characteristics
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
Operating voltage range
Wide Timekeeper voltage range : 1.3 V to 5.5 V
Low backup current
32.768 kHz frequency output function : C-MOS output With Control Pin
The various functions include full calendar, alarm, timer.
Block diagram
Recommended Operating Conditions
Real time clock module
Real time clock module
Real time clock module
Real time clock module
DD
Item
Item
Bi-directional
Output
Output
Output
Input
Input
Input
Input
-
-
Symbol
Symbol
V
T
V
t
OPR
STA
CLK
DD
f / f
32.768 kHz
The chip enabled input pin 0. (Built-in pull-down resistance)
When both CE0 and CE1 pins are at the “H” level , access to this
The chip enabled input pin 1.
When the CE1 pin is at the HIGH level, the FOUT pin is in the output state.
The shift clock input pin for serial data transfer.
The data input / output pin for serial data transfer.
This pin outputs the reference clock signal at 32.768 kHz ( C-MOS output ).
High impedance at the time of output off.
The input pin for the FOUT output control.
The open drain output pin for alarm and time update interrupts.
The open drain output pin for timer interrupt.
Connected to a positive power supply.
Connected to a ground.
OUTPUT
INTERRUPTS
T
V
T
V
T
V
OSC
Real time clock module becomes possible.
BUS
a
DD
a
DD
a
DD
= +25 C
= +25 C
= -40 C to +85 C
Condition
INTERFACE
CONTROLLER
CONTROLLER
= 3.0 V
= 1.6 V
= 1.6 V
CIRCUIT
-
-
-
Condition
DIVIDER
: 3-wire serial interface
: 1.6 V to 5.5 V
: 0.35 A / 3 V (Typ.)
Min.
-40
1.6
1.3
Typ.
+25
3.0
3.0
Function
CLOCK and
TIMER
ALARM
CONTROL
SHIFT REGISTER
1 Max.
3 Max.
Rating
5 23 *
http://www.epsontoyocom.co.jp
Max.
+85
5.5
5.5
CALENDAR
REGISTER
REGISTER
REGISTER
Unit
Unit
10
V
V
s
s
C
CONTROL LINE
6
Actual size
! ! ! !
Current
Consumption
Current consumption characteristics
Item
Timer function
Functions are compatible with RTC-4574 SA / JE / NB.
32.768 kHz frequency output function
Alarm function
Overview
Symbol
• FOUT pin output (C-MOS output), CL=30 pF
• Output frequency is selectable from 1/30 Hz to 32.768 kHz
• Timer function which can be set up between
• It is recorded automatically to TF-bit at the time of event
• Selectable one time mode or repeat mode.
• Alarm function can be set to any combination of day of
•It is recorded automatically to AF-bit at the time of event
I
I
32k
(32 Values)
1/4096 second and 255 minutes.
occurrence, and it’s possible to output with /TIRQ pin output
(open-drain output).
week, hour, or minute.
occurrence, and it’s possible to output with /AIRQ pin output
(open-drain output).
BK
Terminal connection /External dimensions
CE0, CE1 = GND
FOUT ;output OFF
CE0 = GND
CE1 = V
FOUT ;
32.768 kHz output ON
CL = 30 pF
1. N.C.
2. N.C.
3. /TIRQ
4. /AIRQ
5. FCON
6. FOUT
DD
( Hi - z )
Condition
Refer to application manual for details.
Product Number (Please contact us)
RX-4574LC : Q414574C2000300
RX 4574 LC
VSOJ
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
V
V
V
V
= 5 V
= 3 V
= 5 V
= 3 V
DD
DD
DD
DD
2.4
2.8
12pin
Min.
T
Typ.
0.45
0.35
12. V
10. CLK
8.0
5.0
11. CE1
a
9. DATA
8. CE0
7. GND
= 40 C to +85 C
Max. Unit
20.0
12.0
DD
0.9
0.7
(Unit:mm)
µA
µA

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RX-4574LC:B3 PURE SN Summary of contents

Page 1

... Real time clock module Real time clock module Real time clock module Small size, low profile model package SERIAL-INTER FACE REA L TIME C LOCK MODULE RX - 4574 LC Built in frequency adjusted 32.768 kHz crystal unit. Interface Type : 3-wire serial interface Operating voltage range : 1 5.5 V Wide Timekeeper voltage range : 1 ...

Page 2

EPSON TOYOCOM In order to meet customer needs in a rapidly advancing digital, broadband and ubiquitous society, we are committed to offering products that are one step ahead of the market and a rank above the rest in quality. ...

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