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PDF RTC4553 Data sheet ( Hoja de datos )
| Número de pieza | RTC4553 | |
| Descripción | SERIAL-INTERFACE REAL TIME CLOCK MODULE | |
| Fabricantes | ETC | |
| Logotipo |  |
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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
VIN
VOUT
TSTG
VDD-GND
__ __ __
SIN,SCK, WR, CS0, CS1
____
SOUT, TPOUT
Stored without
tape & reel
-0.3
-55
+6.0
VDD+0.3
V
+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
Operating temperature
VDD
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,
VDD=5V
AA
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
47
Tosc
Ta=25˚C
—
3.0 s
Oscillation start-up time
Tosc
Ta=25˚C
—
3.0 s
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet RTC4553.PDF ] | |
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