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MCP79522 Datasheet(PDF) 3 Page - Micro Analog systems

Part # MCP79522
Description  3V SPI Real-Time Clock Calendar with Battery Switchover
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Manufacturer  MAS [Micro Analog systems]
Direct Link  http://www.mas-oy.com
Logo MAS - Micro Analog systems

MCP79522 Datasheet(HTML) 3 Page - Micro Analog systems

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 2012 Microchip Technology Inc.
Preliminary
DS22300A-page 3
MCP7952X/MCP7951X
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings (†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ................................................................................................................. -0.6V to +6.5V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature under bias...............................................................................................................-40°C to +85°C
ESD protection on all pins.......................................................................................................................................... 4 kV
TABLE 1-1:
DC CHARACTERISTICS
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS
Industrial (I):
TAMB = -40°C to +85°C
VCC = 1.8V to 3.6V
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Test Conditions
D001
VIH1
High-level input
voltage
.7 VCC
VCC+1
V
D002
VIL1
Low-level input
voltage
-0.3
0.3VCC
VVCC
2.5V
D003
VIL2
-0.3
0.2VCC
VVCC < 2.5V
D004
VOL
Low-level output
voltage
—0.4
V
IOL = 2.1 mA
D005
VOL
—0.2
V
IOL = 1.0 mA, VCC < 2.5V
D006
VOH
High-level output
voltage
VCC -0.5
V
IOH = -400
A
D007
ILI
Input leakage current
±1
ACS = VCC, VIN = VSS TO VCC
D008
ILO
Output leakage
current
±1
ACS = VCC, VOUT = VSS TO VCC
D009
CINT
Internal Capacitance
(all inputs and
outputs)
—7
pF
TAMB = 25°C, CLK = 1.0 MHz
VCC = 5.0V (Note 1)
D010
ICC Read Operating Current
3
mA
VCC = 3.6V; FCLK = 5 MHz
SO = Open
D011
IDD write Write Current
5
mA
VCC = 3.6V
D012
IBAT
VBAT Current
700
nA
VBAT = 1.8V @ 25°C (Note 2)
D013
VTRIP
VBAT Change Over
1.3
1.7
V
1.5V typical at TAMB = 25°C
D014
VCCFT VCC Fall Time
300
sFrom VTRIP (max) to VTRIP (min)
D015
VCCRT VCC Rise Time
0
sFrom VTRIP (min) to VTRIP (max)
D016
VBAT
VBAT Voltage Range
1.3
3.6
V
D017
ICCS
Standby Current
1
A—
Note 1: This parameter is periodically sampled and not 100% tested.
2: With oscillator running.


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