RTC4553 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – SERIAL-INTERFACE REAL TIME CLOCK MODULE

Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4553
• Builtin crystal unit allows adjustment-free efficient operation.
• The small package makes high-density mounting possible. (SOP 14-pin)
• Automatic calendar function (year, month, day, day of the week, hour, minute,
second).
• Automatic leap year correction. (up to 2099)
• Builtin 30 x 4-bit S-RAM.
• High-speed access.
• Reference pulse output. (1024 Hz, 1/10 Hz)
• Low current consumption. (1 µA typical)
• Similar mounting method to that used for universal type SMD IC.
Actual size
Specifications (characteristics)
Absolute Max. rating
Item
Supply voltage
Input voltage
Output voltage
Storage temperature
Soldering conditions
Symbol Condition
Min.
Max. Unit
VDD
VDD-GND
__ __ __
VIN SIN,SCK, WR, CS0, CS1 -0.3
____
VOUT
SOUT, TPOUT
Stored without
TSTG
tape & reel
-55
+6.0
V
VDD+0.3
+125
˚C
TSOL
Twice at under 260˚C within 10 sec. or
under 230˚C within 3 min.
Operating range
Item
Symbol Condition
Operating voltage
VDD
—
Operating temperature TOPR
Frequency characteristics
Min. Typ. Max. Unit
2.7 5.0 5.5 V
-30 — +70 ˚C
Item
Symbol
Condition
Frequency tolerance
Frequency temperature
characteristics
Frequency voltage
characteristics
Aging
∆f/fo
Top
fv
fa
Ta=25˚C,
AA
VDD=5V
A
B
Ta=-10 to 70˚C, VDD=5V
Reference at 25˚C
Ta=Fix, VDD=2 to 5.5V
Reference at 5V
Ta=25˚C, VDD=5V,
first year
Range
5±5
5±10
5±20
+10
-120
±5
Unit
ppm
ppm/
year
Terminal connection
14 13 12 11 10 9 8
123 456 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
L1 to L5 are test pin. Do not connect them to any terminals.
External dimensions
(Unit: mm)
R4553 A
E 6496
10.1±0.2
0.05 min.
0.6
0.15
DC characteristics
VDD=5V±10%
(GND=OV, Ta=-30˚C to +70˚C)
VDD=3V±10%
(GND=OV, Ta=-30˚C to +70˚C)
Item
Symbol Condition Min. Typ. Max. Unit
Item
Symbol Condition Min. Typ. Max. Unit
Data holding voltage VDH
—
2.0
5.5 V
___
—
Current consumption
IDD1
SCK=500 kHz
___
—
100
µA
IDD2
SCK=DC
1.0 3.0
Data holding voltage ^VDH
—
2.0
3.3 V
___
—
IDD1 SCK=300 kHz
100
Current consumption
___
—
µA
IDD2
SCK=DC
1.0 3.0
Output voltage
VOH
IOH=-400µA VDD-0.4
VOL
IOL=1.6mA
—
—
V
0.4
Output voltage
VOH
IOH=-400µA VDD-0.4
VOL
IOL=1.6mA
—
—
V
0.4
Off leak current
IOZH
VOUT=5.5V
-2.0
IOZL
VOUT=0V
2.0 ^µA
Off leak current
IOZH
VOUT=3.3V
-2.0
IOZL
VOUT=0V
2.0 ^µA
Input voltage
VIH
4/5 VDD — —
—
V
Input voltage
VIL
—
1/5 VDD
VIH
4/5 VDD — —
—
VIL
—
V
1/5 VDD
Input current
IIH
VIN=5.5V
-2.0
IIL
VIN=0V
2.0 ^µA
Input current
IIH
VIN=3.3V
-2.0
IIL
VIN=0V
2.0 µA
Oscillation start-up time
Tosc
47
Ta=25˚C
—
3.0 s
Oscillation start-up time
Tosc
Ta=25˚C
—
3.0 s