rx-4803sa CML Innovative Technologies, rx-4803sa Datasheet

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rx-4803sa

Manufacturer Part Number
rx-4803sa
Description
Built-in 32.768 Khz-dtcxo, High Stability Serial-interface Real Time Clock Module
Manufacturer
CML Innovative Technologies
Datasheet
∗1 )
Interface voltage
Temp. compensated
Clock supply voltage
Operating temperature
Stability
Current consumption (1)
Current consumption (2)
Electrical Characteristics
Voltage
Built-in 32.768 kHz-DTCXO, High Stability
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 4803 SA
Equivalent to 9 seconds of month deviation.
Signal Name
•Built in frequency adjusted 32.768 kHz crystal unit and DTCXO.
•1/100s resolution Time register
•Interface Type
•Interface voltage range
•Temp. compensated voltage range
•Clock supply voltage range
• Selectable clock output (32.768 kHz, 1024 Hz, 1 Hz)
•The various functions include full calendar, alarm, timer, EVIN input.
Block diagram
Pin Function
Specifications (characteristics)
T2(VPP)
Real time clock module
FOE
FOUT
EVIN
/ INT
D I
DO
CLK
CE
FOUT
TEST
EVIN
/ INT
GND
VDD
FOE
CLK
DO
CE
D I
Item
Output
Output Interrupt output (N-ch. open drain).
Output
input
input
input
input
input
input
I / O
-
-
-
Symbol
IDD1
IDD2
V
T
Δ f / f
V
V
OPR
TEM
CLK
The chip enable input pin.
The shift clock input pin for serial data transfer.
The pin outputs the reference clock signal.
Use by the manufacture for testing.
Connected to a positive power supply
The input pin for the FOUT output control.
External event input.
Connected to a ground
Use by the manufacture for testing.
The data output pin for serial data transfer.
The data input pin for serial data transfer.
DD
( CMOS output )
( Do not connect externally. RX-4803SA only.)
( Do not connect externally.)
No condensation
Backup Mode
FOE = GND,
FOUT output : OFF
UA
UB
UC
AA
Interface voltage
Temp. compensated voltage
/INT = V
∗2 ) ∗3 )
CONTROLLER
INTERRUPT
CONTROLLER
INTERFACE
CIRCUIT
DIVIDER
32kHz
DTCXO
FOUT
Equivalent to 13 seconds of month deviation. ( excluding offset )
Ta = -40 ºC to +85 ºC
Ta = -40 ºC to +85 ºC
Ta = -30 ºC to +70 ºC
Ta = +25 ºC
DD
Condition
: 4-wire serial interface
: 1.6 V to 5.5 V
: 2.2 V to 5.5 V
: 1.6 V to 5.5 V
/
32.768 kHz
-
Function
LC
V
V
DD
DD
= 5V
= 3V
http://www.epsontoyocom.co.jp
CLOCK
SYSTEM
CONTROLLER
CONTROL
REGISTER
TIMER
REGISTER
ALARM
REGISTER
and
CALENDAR
and
Min.
−40
1.6
2.2
1.6
-
-
5 ± 5.0
±3.4
±5.0
Typ.
+25
3.0
3.0
3.0
1.2
0.8
∗1
∗2
∗3
Max.
+85
5.5
5.5
5.5
3.4
2.1
Actual size
RX-4803SA
× 10 −6
Terminal connection / External dimensions
1.
2.
3.
4.
5.
6.
7.
Unit
μA
ºC
V
V
V
CE
CLK
FOUT
N.C.
TEST
V
FOE
DD
• High Stability
• High Resolution: 1/100s Time register with capture buffer
• 32.768 kHz frequency output function
• The various interrupt
• Time synchronize function with 1PPS signal input
• Register compatibility: upper compatible with RX-4801.
*It is possible to use it by the terminal connection as
32.768 kHz-DTCXO.
RX − 4803 SA
•UA ± 3.4 x 10
•UB
•UC
•AA
• FOUT pin output (C-MOS output), CL=30 pF
• Output selectable: 32.768 kHz, 1024 Hz, 1 Hz
• Timer Function can be set between 1/ 4096 second and
• Alarm Function can be set to day of week, day, hour, or minute.
• EVIN input.
Overview
SOP − 14 pin
32.768 kHz-DTCXO Frequency temperature characteristics (Example)
Metal may be exposed on the top or bottom of this product.
4095 minutes.
This will not affect any quality, reliability or electrical spec.
( Equivalent to 9 seconds of month deviation )
( Equivalent to 13 seconds of month deviation )
7.4
RX-4803LC
5.0
± 0.2
-10
-15
-20
-25
-30
10
-5
5
0
(+5 ± 5.0) x 10
± 5.0 x 10
± 5.0 x 10
-45
-35
14.
13.
12.
11.
10.
32.768 kHz DTCXO
-25
9.
8.
∗ Refer to application manual for details.
-6
-6
-6
Frequency tem perature characteri sti cs
DI
DO
T2(V
GND
/ INT
EVIN
N.C.
/ -40 ºC to +85 ºC
-15
Product Number (Please contact us)
/ -40 ºC to +85 ºC
/ -30 ºC to +70 ºC
-6
PP
)
-5
/ +25 ºC
Temperature (ºC)
1. N.C.
2. FOE
3. V
4. FOUT
5. CLK
6. CE
5
Epson Toyocom
DD
15
25
35
RX − 4803 LC
VSOJ − 12pin
2.4
2.8
45
Tuning fork X'tal
55
65
12. EVIN
10. GND
11. /INT
9. T2(Vpp)
8. DO
7. DI
75
(Unit:mm)
85

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