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| 型号： | DS1340Z-3+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/CHARGER 3V 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 时钟/日历 |
| 特点： | 闰年，方波输出，涓流充电器 |
| 时间格式： | HH:MM:SS（24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.3 V ~ 3.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
I2C RTC with Trickle Charger
2
Maxim Integrated
DS1340
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS
(VCC = VCC MIN to VCC MAX, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 3.3V, TA = +25°C, unless
otherwise noted.) (Note 1)
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 VCC or VBACKUP Pins
Relative to Ground.............................................-0.3V to +6.0V
Voltage Range on SDA, SCL, and FT/OUT
Relative to Ground..................................-0.3V to (VCC + 0.3V)
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Lead Temperature (soldering, 10s) .................................+260°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DS1340-18
1.71
1.8
5.5
DS1340-3
2.7
3.0
5.5
Supply Voltage (Note 2)
VCC
DS1340-33
2.97
3.3
5.5
V
Input Logic 1 (SDA, SCL)
VIH
(Note 2)
0.7 x VCC
VCC + 0.3
V
Input Logic 0 (SDA, SCL)
VIL
(Note 2)
-0.3
+0.3 x VCC
V
Supply Voltage, Pullup
(FT/OUT, SDA, SCL), VCC = 0V
VPU
(Note 2)
5.5
V
DS1340-18
1.3
3.7
DS1340-3
1.3
3.7
Backup Supply Voltage (Note 2)
VBACKUP
DS1340-33
1.3
5.5
V
R1
(Notes 3, 4)
250
R2
(Note 5)
2000
Trickle-Charge Current-Limiting
Resistors
R3
(Note 6)
4000
DS1340-18
1.51
1.6
1.71
DS1340-3
2.45
2.6
2.7
Power-Fail Voltage (Note 2)
VPF
DS1340-33
2.70
2.88
2.97
V
Input Leakage (SCL, CLK)
ILI
-1
+1
μA
I/O Leakage (SDA, FT/OUT)
ILO
-1
+1
μA
VCC > 2V; VOL = 0.4V
3.0
SDA Logic 0 Output
IOLSDA
1.7V < VCC < 2V; VOL = 0.2 x VCC
3.0
mA
VCC > 2V; VOL = 0.4V
3.0
1.7V < VCC < 2V; VOL = 0.2 x VCC
3.0
mA
FT/OUT Logic 0 Output
IOLSQW
1.3V < VCC < 1.7V; VOL = 0.2x VCC
250
μA
DS1340-18; VCC = 1.89V
72
150
DS1340-3; VCC = 3.3V
108
200
Active Supply Current (Note 7)
ICCA
DS1340-33; VCC = 5.5V
192
300
μA
DS1340-18; VCC = 1.89V
60
100
DS1340-3; VCC = 3.3V
81
125
Standby Current (Note 8)
ICCS
DS1340-33; VCC = 5.5V
100
150
μA
VBACKUP Leakage Current
IBACKUPLKG VBACKUP = 3.7V
100
nA
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