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ISL12059 の電気的特性と機能

ISL12059のメーカーはIntersil Corporationです、この部品の機能は「Low Cost and Low Power I2C Bus Real Time Clock/Calendar」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL12059
部品説明 Low Cost and Low Power I2C Bus Real Time Clock/Calendar
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL12059 Datasheet, ISL12059 PDF,ピン配置, 機能
www.DataSheet4U.com
ISL12059
® Low Cost and Low Power I2C BusReal Time Clock/Calendar
Data Sheet
June 15, 2009
FN6757.0
Low Power and Low Cost RTC
The ISL12059 device is a low power real time clock with
clock/calendar, and 512Hz/digital output function.
The oscillator uses an external, low-cost 32.768kHz crystal.
The real time clock tracks time with separate registers for
hours, minutes, and seconds. The device has calendar
registers for date, month, year and day of the week. The
calendar is accurate through 2099, with automatic leap year
correction.
Pinout
ISL12059
(8 LD SOIC)
TOP VIEW
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Date, Month, and Year
• 512Hz Frequency Output
• I2C Bus
- 400kHz Data Transfer Rate
• Small Package Option
- 8 Ld SOIC Package
- Pb-Free (RoHS Compliant)
• Low Cost 3V Alternative to M41T00S, DS1340 and
ISL12008
X1 1
X2 2
NC 3
GND 4
8 VDD
7 FT/OUT
6 SCL
5 SDA
Applications
• Utility Meters
• HVAC Equipment
• Audio/Video Components
• Set-Top Box/Television
• Modems
• Network Routers, Hubs, Switches, Bridges
• Cellular Infrastructure Equipment
• Fixed Broadband Wireless Equipment
• Pagers/PDA
• Point Of Sale Equipment
• Test Meters/Fixtures
• Office Automation (Copiers, Fax)
• Home Appliances
• Computer Products
• Other Industrial/Medical/Automotive
Ordering Information
.
PART
NUMBER
(Note)
PART
MARKING
VDD RANGE
(V)
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL12059IBZ
12059 IBZ
1.4 to 3.6
-40 to +85
8 Ld SOIC
M8.15
ISL12059IBZ-T*
12059 IBZ
1.4 to 3.6
-40 to +85
8 Ld SOIC (Tape and Reel) M8.15
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is 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.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
I2C BusAll other trademarks mentioned are the property of their respective owners

1 Page





ISL12059 pdf, ピン配列
ISL12059
www.ADabtasSohleuette4UM.caomximum Ratings
Voltage on VDD Pin (respect to GND) . . . . . . . . . . . . . . . -0.2V to 4V
Voltage on FT/OUT, SCL and SDA Pins
(respect to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.2V to 6V
Voltage on X1 and X2 Pins (respect to GND) . . . . . . . . . -0.2V to 4V
ESD Rating ((Per MIL-STD-883 Method 3014)
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>4kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>350V
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (°C/W)
8 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
120
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
1. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
DC Operating Characteristics – RTC Temperature = -40°C to +85°C unless otherwise stated.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
(Note 4) (Note 3) (Note 4) UNITS
VDD
VDDT
IDD1
IDD2
IDD3
Main Power Supply
Timekeeping Power Supply
Standby Supply Current
Timekeeping Current
Supply Current With I2C Active at
Clock Speed of 400kHz
VDD = 3.6V
VDD = 3.0V
VDD = 1.8V
VDD = 1.4V
VDD = 3.6V
1.8 3.6 V
1.4 1.8 V
600 950
nA
500 nA
400 650
nA
350 nA
15 40 µA
ILI
ILO
FT/OUT
Input Leakage Current on SCL
I/O Leakage Current on SDA
-100
-100
100 nA
100 nA
VOL Output Low Voltage
VDD = 1.8V, IOL = 3mA
0.4 V
NOTES
2, 8
2, 8
2
Serial Interface Specifications Over the recommended operating conditions unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN MAX
(Note 4) TYP (Note 3) (Note 4) UNITS NOTES
SERIAL INTERFACE SPECS
VIL SDA and SCL Input Buffer LOW
Voltage
-0.3 0.3 x VDD V
VIH SDA and SCL Input Buffer HIGH
Voltage
0.7 x VDD
5.5 V
Hysteresis SDA and SCL Input Buffer
Hysteresis
0.04 x VDD
V
VPULLUP
Maximum Pull-up Voltage on SDA
during I2C Communication
VDD+2
V
7
VOL SDA Output Buffer LOW Voltage, VDD > 1.8V, VPULLUP = 5.0V
Sinking 3mA
0
0.4 V
Cpin
fSCL
tIN
SDA and SCL Pin Capacitance
SCL Frequency
Pulse width Suppression Time at
SDA and SCL Inputs
TA = +25°C, f = 1MHz, VDD = 5V,
VIN = 0V, VOUT = 0V
Any pulse narrower than the max
spec is suppressed
10 pF 5, 6
400 kHz
50 ns
3 FN6757.0
June 15, 2009


3Pages


ISL12059 電子部品, 半導体
ISL12059
www.TDaytapSihceaetl4UP.ceormformance Curves Temperature is +25°C unless otherwise specified.
0.7 1.0
0.6
0.5
0.4
0.3
0.2
0.1
0
1.4
1.9 2.4 2.9
VDD (V)
FIGURE 2. IDD1 vs VDD
3.4
0.8
3.6
0.6
3.0
0.4
0.2
-40
1.8
1.4
-20 0
20 40 60
TEMPERATURE (°C)
FIGURE 3. IDD1 vs TEMPERATURE
80
General Description
The ISL12059 device is a low power real time clock with
clock/calendar, and 512Hz/Digital Output function.
The oscillator uses an external, low-cost 32.768kHz crystal.
The real time clock tracks time with separate registers for
hours, minutes, and seconds. The device has calendar
registers for date, month, year and day of the week. The
calendar is accurate through 2099, with automatic leap year
correction.
Pin Description
X1, X2
The X1 and X2 pins are the input and output, respectively, of
an inverting amplifier. An external 32.768kHz quartz crystal
is used with the ISL12059 to supply a timebase for the real
time clock. Refer to Figure 4.
The device can also be driven directly from a 32.768kHz
square wave source with peak-to-peak voltage from 0V to
VDD at X1 pin with X2 pin floating.
X1
X2
FIGURE 4. RECOMMENDED CRYSTAL CONNECTION
FT/OUT(512Hz Frequency Output/Logic Output)
This dual function pin can be used as a 512Hz frequency
output or a simple digital output control via I2C. The FT/OUT
mode is selected via the OUT and FT control bits of the
control/status register (address 07h). The FT/OUT pin is an
open drain output that requires the use of a pull-up resistor,
and it can accept a pull-up voltage up to 5.5V. This pin is at
high impedance at power-up.
Serial Clock (SCL)
The SCL input is used to clock all serial data into and out of the
device. The input buffer on this pin is always active (not gated).
The SCL pin can accept a logic high voltage up to 5.5V.
Serial Data (SDA)
SDA is a bi-directional pin used to transfer data into and out
of the device. It has an open drain output and may be ORed
with other open drain or open collector outputs. The input
buffer is always active (not gated) in normal mode.
An open drain output requires the use of a pull-up resistor,
and it can accept a pull-up voltage up to 5.5V. The output
circuitry controls the fall time of the output signal with the use
of a slope controlled pull-down. The circuit is designed for
400kHz I2C interface speeds.
NOTE:
limit but
Parts will work with SDA
the tAA and tFin the I2C
pull-up voltage above the VPULLUP
parameters are not guaranteed.
VDD, GND
Chip power supply and ground pins. The device will have full
operation with a power supply from 1.8V to 3.6V, and
timekeeping function with a power supply from 1.4V to 3.6V.
A 0.1µF decoupling capacitor is recommended on the VDD
pin to ground.
NC (No Connection)
The NC pin is not connected to the die. The pin can be
connected to GND or left floating.
Functional Description
Real Time Clock Operation
The Real Time Clock (RTC) uses an external 32.768kHz quartz
crystal to maintain an accurate internal representation of
second, minute, hour, day of week, date, month, and year. The
RTC also has leap-year correction. The RTC also corrects for
months having fewer than 31 days. The clock will begin
incrementing after power-up with valid oscillator condition.
6 FN6757.0
June 15, 2009

6 Page



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部品番号部品説明メーカ
ISL12057

Low Cost and Low Power I2C RTC Real Time Clock/Calendar

Intersil Corporation
Intersil Corporation
ISL12058

Low Cost and Low Power I2C-Bus Real Time Clock/Calendar

Intersil Corporation
Intersil Corporation
ISL12059

Low Cost and Low Power I2C Bus Real Time Clock/Calendar

Intersil Corporation
Intersil Corporation


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