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DP8572A Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DP8572A
Description  Real Time Clock (RTC)
Download  22 Pages
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DP8572A Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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8572AMMilitary Version
Absolute Maximum Ratings (Notes12)
The 883 specifications are written to reflect the current
(at the time of printing) Rel Electrical Test Specifica-
tions (RETS) established by National Semiconductor for
this product For a copy of the latest version of the
RETS please contact your local National Semiconduc-
tor sales office or distributor
Supply Voltage (VCC)
b
05V to a70V
DC Input Voltage (VIN)
b
05V to VCC a 05V
DC Output Voltage (VOUT)
b
05V to VCC a 05V
Storage Temperature Range
b
65 Cto a150 C
Power Dissipation (PD)
500 mW
Lead Temperature (Soldering 10 sec)
260 C
Operation Conditions
Min
Max
Unit
Supply Voltage (VCC) (Note 3)
45
55
V
Supply Voltage (VBB) (Note 3)
22 VCCb04
V
DC Input or Output Voltage
00
VCC
V
(VIN VOUT)
Operating Temperature (TA)
b
55
a
125
C
Electro-Static Discharge Rating
1
kV
Typical Values
iJA DIP
Board
45 CW
Socket
52 CW
DC Electrical Characteristics
VCC e 50V g10% VBB e 3V
Symbol
Parameter
VCC
Conditions
Min
Max
Units
VIH
High Level Input Voltage
All Inputs Except OSC IN
20
V
(Note 4)
OSC IN with External Clock
VBB b 01
V
VIL
Low Level Input Voltage
All Inputs Except OSC IN
08
V
OSC IN with External Clock
01
V
VOH
High Level Output Voltage
55V
IOUT eb20 mAVCC b 01
V
(Excluding OSC OUT)
55V
IOUT eb40 mA
35
V
VOL
Low Level Output Voltage
55V
IOUT e 20 mA
01
V
(Excluding OSC OUT)
55V
IOUT e 40 mA
025
V
IIN
Input Current (Except OSC IN)
55V
VIN e VCC or GND
g
10
m
A
IOZ
Output TRI-STATE Current
55V
VOUT e VCC or GND
g
50
m
A
ICC
Quiescent Supply Current
FOSC e 32768 kHz
275
m
A
(Note 7)
55V
VIN e VCC or GND (Note 5)
10
mA
55V
VIN e VCC or GND (Note 6)
120
mA
55V
VIN e VIH or VIL (Note 6)
FOSC e 49152 MHz
8
mA
55V
VIN e VCC or GND (Note 6)
20
mA
55V
VIN e VIH or VIL (Note 6)
ICC
Quiescent Supply Current
VBB e GND VIN e VCC or GND
(Single Supply Mode)55V
FOSC e 32768 kHz
40
m
A
(Note 7)
55V
FOSC e 49152 MHz
75
mA
IBB
Standby Mode Battery
OSC OUT e Open Circuit
Supply Current
Other Pins e GND
(Note 7)
0V
FOSC e 32768 kHz
10
m
A
0V
FOSC e 49152 MHz
400
m
A
IBLK
Battery Leakage
22V s VBB s 40V
55V
25 C
b
5
15
m
A
55V
b
55 C
b
5
35
m
A
55V
a
125 C
b
5
35
m
A
Note 1
Absolute Maximum Ratings are those values beyond which damage to the device may occur
Note 2
Unless otherwise specified all voltages are referenced to ground
Note 3
For FOSC e 4194304 or 49152 MHz VBB minimum e 28V In battery backed mode VBB s VCC b 04V
Single Supply Mode Data retention voltage is 22V min
In single Supply Mode (Power connected to VCC pin) 45V s VCC s 55V
Note 4
This parameter (VIH) is not tested on all pins at the same time
Note 5
This specification tests ICC with all power fail circuitry disabled by setting D7 of Interrupt Control Register 1 to 0
Note 6
This specification tests ICC with all power fail circuitry enabled by setting D7 of Interrupt Control Register 1 to 1
Note 7
OSC IN is driven by a signal generator Contents of the Test Register e 00(H) and the MFO pin is not configured as buffered oscillator out
4


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