RTC-58321 Ver la hoja de datos (PDF) - Seiko Epson Corp
Número de pieza
componentes Descripción
Fabricante
RTC-58321 Datasheet PDF : 12 Pages
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n Characteristics
1. Absolute maximum ratings
Item
Symbol
Power supply voltage
VDD
Input voltages
VI
Output voltages
VO
Storage temperature
TSTG
Soldering temperature
TSOL
EPSON
Conditions (Pins)
Ta = 25°C, VDD-VSS
Ta = 25°C input pins
D0 to D3
Temperature stored as
separate item.
RTC-58321
RTC-58323
Rated Value
Unit
-0.3 to +7.0
V
-0.3 to VDD +0.3
V
-0.3 to VDD +0.3
V
RTC-58321
-55 to +85
°C
RTC-58323
-55 to +125
°C
Maximum 260°C for up to 10 seconds (pins);
package maximum 150°C.
Maximum 260°C for up to 10 seconds (twice maximum), or
maximum 230°C for up to three minutes.
2. Operating Conditions
Item
Symbol
Min.
Typ.
Max.
Unit
Notes
Power supply
VDD
4.5
5.0
5.5
V
VDD-VSS
Data hold voltage *1
VDH
2.2
−
5.5
Operating
RTC-58321
TOP
-10
−
70
°C
temperature RTC-58323
-30
−
85
*1 Data hold voltage: This is the range of power supply voltage for which the internal operation of the clock is guaranteed.
I/O operations are not guaranteed.
3. Frequency characteristics
Item
RTC-58321 A
Frequency
RTC-58321 B
tolerance
RTC-58323
Aging
Temperature characteristics *2
Voltage characteristics
Symbol
∆f/fO
fa
tOP
fV
*2 Deviation from the frequency at 25°C.
Conditions
Ta = 25°C
VDD = 5.0V
Ta = 25°C :VDD = 5.0V ; first year
VDD = 5.0V ; Ta = -10 to 70°C
VDD = 2.2 to 5.5V
Ta fixed, 5V reference
Notes
1. Frequency tolerance based on VDD = 5.0 V.
2. Frequency tolerance is value guaranteed on factory shipment.
Max.
± 10
± 50
5 ± 20
±5
+ 10/-120
±2
Unit
ppm
ppm/y
ppm
ppm
Page - 3
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