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X1227AL View Datasheet(PDF) - Intersil

Part Name
Description
Manufacturer
X1227AL Datasheet PDF : 28 Pages
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X1227
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ................... -65°C to +135°C
Storage Temperature ........................ -65°C to +150°C
Voltage on VCC, VBACK pin
(respect to ground)...............................-0.5V to 7.0V
Voltage on SCL, SDA, X1 and X2
pin (respect to ground) ............... -0.5V to 7.0V or 0.5V
above VCC or VBACK (whichever is higher)
DC Output Current .............................................. 5 mA
Lead Temperature (Soldering, 10 sec) .............. 300°C
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and the functional operation
of the device at these or any other conditions above
those indicated in the operational sections of this
specification is not implied. Exposure to absolute max-
imum rating conditions for extended periods may
affect device reliability.
DC OPERATING CHARACTERISTICS (Temperature = -40°C to +85°C, unless otherwise stated.)
Symbol
VCC
VBACK
VCB
VBC
Parameter
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
Conditions
Min
Typ
Max
Unit
2.7
5.5
V
1.8
5.5
V
VBACK -0.2
VBACK
VBACK -0.1
V
VBACK +0.2
V
Notes
OPERATING CHARACTERISTICS
Symbol
Parameter
Conditions
Min
ICC1
ICC2
ICC3
IBACK
Read Active Supply
Current
Program Supply Current
(nonvolatile)
Main Timekeeping
Current
Timekeeping Current –
(Low Voltage Sense
and Watchdog Timer
disabled
VCC = 2.7V
VCC = 5.0V
VCC = 2.7V
VCC = 5.0V
VCC = 2.7V
VCC = 5.0V
VBACK = 1.8V
VBACK = 3.3V
ILI
Input Leakage Current
ILO Output Leakage Current
VIL Input LOW Voltage
-0.5
VIH
VHYS
VOL1
Input HIGH Voltage
Schmitt Trigger Input
Hysteresis
Output LOW Voltage for
SDA and RESET
VCC related level
VCC = 2.7V
VCC = 5.5V
VCC x 0.7 or
VBACK x 0.7
.05 x VCC or
.05 x VBACK
Typ
1.25
1.5
Max
400
800
2.5
3.0
10
20
Unit
µA
µA
mA
mA
µA
µA
µA
µA
Notes
1, 5, 7, 14
2, 5, 7, 14
3, 7, 8, 14, 15
3, 6, 9, 14, 15
“See Perfor-
mance Data”
10
µA
10
10
µA
10
VCC x 0.2 or V
13
VBACK x 0.2
VCC + 0.5 or V
13
VBACK + 0.5
V
13
0.4
V
11
0.4
Notes: (1) The device enters the Active state after any start, and remains active: for 9 clock cycles if the Device Select Bits in the Slave Address
Byte are incorrect or until 200nS after a stop ending a read or write operation.
(2) The device enters the Program state 200nS after a stop ending a write operation and continues for tWC.
(3) The device goes into the Timekeeping state 200nS after any stop, except those that initiate a nonvolatile write cycle; tWC after a stop
that initiates a nonvolatile write cycle; or 9 clock cycles after any start that is not followed by the correct Device Select Bits in the Slave
Address Byte.
(4) For reference only and not tested.
(5) VIL = VCC x 0.1, VIH = VCC x 0.9, fSCL = 400KHz
(6) VCC = 0V
(7) VBACK = 0V
(8) VSDA = VSCL=VCC, Others = GND or VCC
4
FN8099.2
May 8, 2006
 

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