DS1390–DS1394
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
10
Maxim Integrated
Typical Operating Characteristics
(VCC = +3.3V, TA = +25°C, unless otherwise noted.)
IBACKUP vs. VBACKUP, BBSQ1 = 0
DS1390
TOC01
VBACKUP (V)
SUPPLY
CURRENT
(nA)
4.5 4.9
4.1
3.3 3.7
2.9
2.5
2.1
1.7
350
400
450
500
550
600
300
1.3
5.3
VCC= 0
IBACKUP vs. VBACKUP, BBSQ1 = 1
DS1390
toc02
VBACKUP (V)
SUPPLY
CURRENT
(nA)
5.3
4.9
4.1 4.5
2.1 2.5 2.9 3.3 3.7
1.7
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
300
1.3
VCC = 0V
IBACKUP vs. TEMPERATURE
VBACKUP = 3.0V
DS1390
toc03
TEMPERATURE (
°C)
SUPPLY
CURRENT
(nA)
80
60
40
20
0
-20
300
400
350
450
500
550
600
250
-40
VCC = 0V
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
DS1390
toc04
SUPPLY (V)
FREQUENCY
(Hz)
5.3
4.8
4.3
3.8
3.3
2.8
2.3
1.8
32767.85
32767.90
32767.95
32768.00
32767.80
1.3
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相关代理商/技术参数
DS1395 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:RAMified Real Time Clock
DS1395N 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC
DS1395S 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:RAMified Real Time Clock
DS1395SN 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC
DS1397 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:RAMified Real Time Clock
DS-14 功能描述:非热缩管和套管 FLEX BRAIDED SHIELD 14MM X 100M ROLL RoHS:否 制造商:Panduit 产品:Cable Wraps 类型:Spiral 颜色:Black 材料:PP 内径:0.03 in 长度:100 ft
DS14-00 制造商:FLOWLINE 功能描述:Sensor, Liquid Level, Ultrasonic Switch/Control 4 Relays; Range 49.2 in, 1NPT
DS1-40-0001 制造商:SCHURTER 制造商全称:Schurter Inc. 功能描述:Storage Choke, fully potted resign