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Maxim > 方案 > 打印机与传真机

实时时钟

数据资料
显示 标题/型号 关键优势
QV  PDF 高精度、I²C RTC，集成TCXO/晶体/FRAM
DS32B35, DS32C35

非易失存储器，无需备份电源、不受写次数限制
QV  PDF 低电压SPI/3线接口RTC，带有涓流充电器
DS1390, DS1391, DS1392, DS1393, DS1394

低电压、SPI™/3线接口RTC，带有涓流充电器，与同类产品相比具有更多功能和更小尺寸
QV  PDF 带有恒压涓流充电器的RTC
DS12CR887, DS12R885, DS12R887
QV  PDF I²C RTC，带有涓流充电器
DS1340, DS1340C

I²C实时时钟，带有涓流充电器，可通过软件进行校准
QV  PDF I²C串行实时时钟
DS1337, DS1337C

业内尺寸最小的I²C RTC，带有两个定时闹钟
QV  PDF 便携系统控制器
DS1677
QV  PDF 便携系统控制器
DS1673
QV  PDF 便携系统控制器
DS1670



Key Specifications:   Oscillator Modules
Part Number Frequency Oscillator Type Tuning Adjustment Type Frequency Output Type Freq. Stability vs. Temp. @0 to +40°C (±ppm) Freq. Stab. vs.Temp. @-40 to 0/ +40 to 85°C (±ppm) Frequency Stability vs. Supply Voltage (±ppm/V) Frequency Stability vs. Aging (±ppm) Supply Voltage (V) Battery Voltage (V) Package Operating Temp. Range (°C)
DS32B35  32.768kHz TCXO Digital CMOS Open-Drain 2 3.5 1 (typ) 5 (0-10 Years) 2.7 to 3.63
3.3 		2.3 to 3.6 SOIC/20 -40 to +85
0 to +70
DS32C35  32.768kHz TCXO Digital CMOS Open-Drain 2 3.5 1 (typ) 5 (0-10 Years) 2.7 to 3.63
3.3 		2.3 to 3.6 SOIC/20 -40 to +85
0 to +70
See All Oscillator Modules (26)

Key Specifications:   Timekeeping & Real-Time Clocks
Part Number Functions Time Format (hh = sec/100) Date Format Interface Supply Voltage (V) Time- keeping Current (typ) (nA) CL, Load Capacitance (pF) Memory Type Memory Size (Bytes) Number of Time of Day Alarms Features Package Operating Temp. Range (°C)
DS32B35   -  HH:MM:SS YY-MM-DD I2C 2.7 to 3.63
3.3 		840  -  FRAM 2K
8K 		 - 
•µP Reset
•Power Fail Output
•SOIC Package with Integrated Crystal
•Square-Wave Output
 SOIC/20 -40 to +85
0 to +70
DS32C35   -  HH:MM:SS YY-MM-DD I2C 2.7 to 3.63
3.3 		840  -  FRAM 2K
8K 		 - 
•µP Reset
•Power Fail Output
•SOIC Package with Integrated Crystal
•Square-Wave Output
 SOIC/20 -40 to +85
0 to +70
DS1390   -  HH:MM:SS:hh YY-MM-DD SPI 1.8
3
3.3
5 		500 6 None  -  1
•Square-Wave Output
•Trickle Charger
 uSOP/10 -40 to +85
DS1391   -  HH:MM:SS:hh YY-MM-DD SPI 1.8
3
3.3
5 		500 6 None  -  1
•µP Reset
•Power Fail Output
•Trickle Charger
 uSOP/10 -40 to +85
DS1392   -  HH:MM:SS:hh YY-MM-DD 3-Wire 1.8
3
3.3
5 		500 6 None  -  1
•Square-Wave Output
•Trickle Charger
 uSOP/10 -40 to +85
DS1393   -  HH:MM:SS:hh YY-MM-DD 3-Wire 1.8
3
3.3
5 		500 6 None  -  1
•µP Reset
•Power Fail Output
•Trickle Charger
 uSOP/10 -40 to +85
DS12CR887   -  HH:MM:SS YY-MM-DD Multiplexed 3.3
5 		 -   -  NV SRAM 114 1
•Battery + Crystal
•Periodic Interrupt
•Square-Wave Output
 MOD/24 -40 to +85
DS12R885   -  HH:MM:SS YY-MM-DD Multiplexed 3.3
5 		800 12.5 NV SRAM 114 1
•Periodic Interrupt
•Square-Wave Output
 SOIC/24 -40 to +85
DS12R887   -  HH:MM:SS YY-MM-DD Multiplexed 3.3
5 		 -   -  NV SRAM 114 1
•Battery + Crystal
•Periodic Interrupt
•Square-Wave Output
 BGA/48 -40 to +85
DS1340   -  HH:MM:SS YY-MM-DD I2C 1.8
3
3.3
5 		800 12.5 None  -  0
•SOIC Package with Integrated Crystal
•Square-Wave Output
•Trickle Charger
 SOIC/16
SOIC/8
uSOP/8 		-40 to +85
DS1337   -  HH:MM:SS YY-MM-DD I2C 2
3
3.3
5 		425 6 None  -  2
•SOIC Package with Integrated Crystal
•Square-Wave Output
 PDIP/8
SOIC/16
SOIC/8
uSOP/8 		 - 
DS1670 
•NV SRAM Control
•Watchdog Timekeeper
 HH:MM:SS YY-MM-DD 3-Wire 3.3 300 6 None  -  1
•µP Reset
•A to D Converter
•Periodic Interrupt
•Power Fail Output
 SOIC/20
TSSOP/20 		0 to +70
DS1673 
•NV SRAM Control
•Watchdog Timekeeper
 HH:MM:SS YY-MM-DD 3-Wire 3
5 		300 6 None  -  1
•µP Reset
•A to D Converter
•Periodic Interrupt
•Power Fail Output
 SOIC/20
TSSOP/20 		0 to +70
DS1677 
•NV SRAM Control
•Watchdog Timekeeper
 HH:MM:SS YY-MM-DD 3-Wire 5 300 6 None  -  1
•µP Reset
•A to D Converter
•Periodic Interrupt
•Power Fail Output
 TSSOP/20 0 to +70
See All Timekeeping & Real-Time Clocks (86)


         


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