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參數(shù)資料
| 型號： | DS1342T+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC I2C W/ALARM 6TDFN |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，方波輸出 |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-TDFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
2
Maxim Integrated
Low-Current I2C RTCs for High-ESR Crystals
DS1341/DS1342
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Voltage Range on Any Pin Relative to Ground....-0.3V to +6.0V
Operating Temperature Range.......................... -40NC to +85NC
Junction Temperature Maximum.....................................+150NC
Storage Temperature Range............................ -55NC to +125NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
DC ELECTRICAL CHARACTERISTICS
(VCC = +1.8V to +5.5V, TA = -40NC to +85NC, unless otherwise noted.) (Note 2)
ABSOLUTE MAXIMUM RATINGS
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
F
SOP
Junction-to-Ambient Thermal Resistance (BJA) .....206.3NC/W
Junction-to-Case Thermal Resistance (BJC) ...............42NC/W
TDFN
Junction-to-Ambient Thermal Resistance (BJA) ..........41NC/W
Junction-to-Case Thermal Resistance (BJC) .................8NC/W
PACKAGE THERMAL CHARACTERISTICS (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
VCC
Full operation (Note 3)
1.8
5.5
V
VCCT
Timekeeping (Notes 3, 4)
1.3
5.5
Minimum Timekeeping Voltage
VCCTMIN
TA = +25NC (Notes 3, 4)
1.15
1.3
V
Timekeeping Current: DS1341
CLKIN = GND or CLKIN = VCC
(Note 4)
ICCT
VCC = +3.0V, EGFIL = 0, DOSF = 1
220
500
nA
VCC = +5.5V
250
600
VCC = +3.0V, EGFIL = 1, DOSF = 0
280
560
VCC = +5.5V
320
700
Timekeeping Current: DS1342
CLKIN = GND or CLKIN = VCC
(Note 4)
ICCT
VCC = +3.0V, EGFIL = 0, DOSF = 1
250
600
nA
VCC = +5.5V
280
700
VCC = +3.0V, EGFIL = 1, DOSF = 0
310
660
VCC = +5.5V
350
800
Logic 1 Input
VIH
(Note 2)
0.7 x
VCC
VCC +
0.3
V
Logic 0 Input
VIL
(Note 2)
-0.3
0.3 x
VCC
V
Input Leakage
(SCL, CLKIN/INTA)
ILI
ECLK = 1, VIN = 0V to VCC
-0.1
+0.1
F
A
Output Leakage
(CLKIN/INTA, SQW/INTB)
IO
ECLK = A1IE = A2IE = 0
-1.0
+1.0
F
A
Output Logic 1
VOH = +1.0V (SQW /INTB)
IOH
VCC R 1.8V, INTCN = 0
-3.0
mA
VCC R 1.3V, INTCN = 0
-250
F
A
Output Logic 0
VOL = +0.4V (SDA, CLKIN/INTA,
SQW/INTB)
IOL
VCC R 1.8V
3.0
mA
VCC R 1.3V (Note 5)
250
F
A
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