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Real time clock module SERIAL-INTERFACE REAL TIME CLOCK MODULE WITH SRAM
RTC-4553
Product number (please refer to page 2)
Q41 4 5 5 3 5 x x x x x 0 0
* 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 VDD VIN VOUT TSTG Condition VDD to GND Min. Max. +6.0 -0.3 VDD+0.3 +125 V Unit
Terminal connection RTC-4553
#14 #8
No. Pin terminal GND 1 WR 2 SIN 3 SCK 4 L1 5 L2 6 L3 7 No. Pin terminal 14 TPOUT SOUT 13 CS1 12 CS0 11 L5 10 L4 9 VDD 8
SIN,SCK, WR, CS0, CS1 ____
SOUT, TPOUT
Stored as bare product after unpacking
__ __ __
-55
C
Operating range
Item Power voltage Clock voltage Symbol VDD VCLK TOPR Condition -- -- Min. 2.7 2.0 -30 Typ. 5.0 -- -- Max. 5.5 5.5 +70 Unit V V C
#1
#7
L1 to L5 are test pin. Do not connect them to any terminals.
Operating temperature
No condensation
External dimensions RTC-4553 (SOP 14-pin)
(Unit: mm)
Item
Symbol
Condition Ta=+25 C, AA A B
Range 55 510 520 3.0 Max. +10 -120
Unit
Frequency tolerance
f/fo
VDD=5 V
x 10-6
10.10.2
Oscillation start-up time Frequency temperature characteristics
Frequency voltage characteristics Aging
tSTA Top f/V fa
Ta=+25 C, VDD = 3.0 V
s
3.1 3.20.1
Ta=-10 C to +70 C, VDD=5 V Reference at +25 C Ta=Fix, VDD=2 V to 5.5 V
Reference at 5 V
Ta=+25 C, VDD=5 V, first year
x 10-6 5
x 10-6/ year
7.40.2
Frequency characteristics
R4553 A E 123 4A
5.0
0.05 Min. 1.27 0.35 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.
DC characteristics
Item Symbol IDD1 IDD2 Output voltage VOH VOL IOZH Off leak current IOZL VIH Input voltage VIL IIH Input current IIL
(GND=O V, VDD=5 V 10 % , Ta=-30 C to +70 C)
Block diagram
32.768 kHz OSC Counter Output control
Day
___
Condition
Min. --
Typ. -- 1.0
Max. 100 3.0 -- 0.4 2.0
Unit A
Sec. Min. Hou. of
Week
Day Mon. Year
Current consumption
SCK=500 kHz
___
SCK=O Hz
TPOUT
IOH=-400 A IOL=1.6 mA VOUT=5.5 V
VDD-0. 4
-- -2.0
V
Control register 1
Control register 2
Control register 3
RAM (120bit)
A
SOUT Output control
VOUT=0 V
4/5 VDD
-- -- VIN=5.5 V -2.0 VIN=0 V
--
--
V
SCK SIN CS1 CS0 WR
1/5 VDD
2.0 A
Input control
Shift register Control circuit
83

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