RTC-4553 Datasheet, PDF (1/2 Pages) Epson Company – Real time clock module(SERIAL-INTERFACE REAL TIME CLOCK MODULE WITH SRAM)

Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE WITH SRAM
RTC-4553
Product number (please refer to page 2)
Q4145 535xx xxx 00
• Built-in crystal unit allows adjustment-free efficient operation.
• Automatic calendar function (year, month, day, day of the week, hour, minute,
second).
• Automatic leap year correction.
• Builtin 30 x 4-bit S-RAM.
• Reference pulse output. (1024 Hz, 1/10 Hz)
Actual size
The details are mentioned in the application manual.
http://www.epsondevice.com
Specifications (characteristics)
Absolute Max. rating
Item
Supply voltage
Input voltage
Output voltage
Storage temperature
Symbol Condition
VDD
VDD to GND
__ __ __
VIN SIN,SCK, WR, CS0, CS1
____
VOUT
SOUT, TPOUT
TSTG
Stored as bare
product after
unpacking
Min.
-0.3
-55
Max. Unit
+6.0
V
VDD+0.3
+125
°C
Operating range
Terminal connection
RTC-4553
#14
#8
#1
#7
No. Pin terminal No. Pin terminal
1 GND 14 TPOUT
2 WR 13 SOUT
3
SIN 12 CS1
4 SCK 11 CS0
5 L1 10 L5
6 L2 9 L4
7
L3
8 VDD
Item
Symbol Condition Min. Typ. Max. Unit
L1 to L5 are test pin. Do not connect them to any terminals.
Power voltage
VDD
—
2.7 5.0 5.5 V
Clock voltage
VCLK
—
2.0 _— 5.5 V
Operating temperature TOPR No condensation -30 _— +70 ˚C
External dimensions
RTC-4553 (SOP 14-pin)
(Unit: mm)
Frequency characteristics
Item
Frequency tolerance
Oscillation start-up time
Frequency temperature
characteristics
Frequency voltage
characteristics
Aging
Symbol
Condition
∆f/fo
Ta=+25 °C, ^AA
VDD=5 V
A
B
tSTA Ta=+25 °C, VDD = 3.0 V
Top ^{Ta=-10 °C to +70 °C, VDD=5 V}
Reference at +25 °C
f/V ^{Ta=Fix, VDD=2 V to 5.5 V}
Reference at 5 V
fa
Ta=+25 °C, VDD=5 V,
first year
Range
5±5
5±10
5±20
3.0 Max.
+10
-120
±5
Unit
x 10^-6
s
x 10^-6
x 10^-6/
year
DC characteristics (GND=O V, VDD=5 V ± 10 % , Ta=-30 °C to +70 °C)
Item
Current consumption
Symbol Condition Min. Typ. Max. Unit
___
IDD1
SCK=500 kHz
— 100
___
—
µA
IDD2
SCK=O Hz
1.0 3.0
Output voltage
VOH
IOH=-400 µA VDD-0.4
VOL
IOL=1.6 mA —
—
V
0.4
Off leak current
Input voltage
IOZH
VOUT=5.5 V
-2.0
2.0 ^µA
IOZL
VOUT=0 V
—
VIH
4/5 VDD
—
—
V
VIL
—
1/5 VDD
Input current
83
IIH
VIN=5.5 V
-2.0
IIL
VIN=0 V
2.0 ^µA
R4553 A
E 123 4A
10.1±0.2
1.27
0.35
0.05 Min.
0.6
0.15
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
Block diagram
32.768 kHz
OSC
Counter
Day
Sec. Min. Hou. of Day Mon. Year
Week
TPOUT
Output
control
Control Control Control
register register register
1
2
3
RAM
(120bit)
SOUT
SCK
SIN
CS1
CS0
WR
Output control
Input
control
Shift register
Control circuit