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X1205V8Z View Datasheet(PDF) - Intersil

Part NameDescriptionManufacturer
X1205V8Z 2-Wire™ RTC Real Time Clock/Calendar Intersil
Intersil Intersil
X1205V8Z Datasheet PDF : 22 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
X1205
PIN DESCRIPTIONS
X1
X2
IRQ
VSS
8 Ld SOIC
1
8
2
7
3
6
4
5
X1205
VCC
VBACK
SCL
SDA
VBACK
VCC
X1
X2
8 Ld TSSOP
1
8
2
7
3
6
4
5
SCL
SDA
VSS
IRQ
NC = No internal connection
Ordering Information
PART NUMBER
X1205S8*
PART MARKING
X1205
VCC RANGE (V)
2.7 to 5.5
TEMP RANGE (°C)
0 to 70
PACKAGE
8 Ld SOIC (150 mil)
X1205S8Z* (Note)
X1205 Z
0 to 70
8 Ld SOIC (150 mil) (Pb Free)
X1205S8I*
X1205 I
-40 to 85
8 Ld SOIC (150 mil)
X1205S8IZ* (Note)
X1205 Z I
-40 to 85
8 Ld SOIC (150 mil) (Pb Free)
X1205V8*
1205
0 to 70
8 Ld TSSOP (4.4mm)
X1205V8Z* (Note)
1205 Z
0 to 70
8 Ld TSSOP (4.4mm) (Pb-free)
X1205V8I*
1205I
-40 to 85
8 Ld TSSOP (4.4mm)
X1205V8IZ* (Note)
1205I Z
-40 to 85
8 Ld TSSOP (4.4mm) (Pb-free)
*Add “T1” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
PIN ASSIGNMENTS
Pin Number
SOIC TSSOP
1
3
2
4
3
5
4
6
5
7
6
8
7
1
8
2
Symbol
X1
X2
IRQ
VSS
SDA
SCL
VBACK
VCC
Brief Description
X1. The X1 pin is the input of an inverting amplifier and should be connected to one pin
of a 32.768kHz quartz crystal.
X2. The X2 pin is the output of an inverting amplifier and should be connected to one pin
of a 32.768kHz quartz crystal.
Interrupt Output – IRQ. This is an interrupt signal output. This signal notifies a host proces-
sor that an alarm has occurred and requests action. It is an open drain active low output.
VSS.
Serial Data (SDA). SDA is a bidirectional pin used to transfer data into and out of the
device. It has an open drain output and may be wire ORed with other open drain or open
collector outputs.
Serial Clock (SCL). The SCL input is used to clock all data into and out of the device.
VBACK. This input provides a backup supply voltage to the device. VBACK supplies power
to the device in the event the VCC supply fails. This pin can be connected to a battery, a
Supercap or tied to ground if not used.
VCC.
2
FN8097.2
September 23, 2005
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