参数资料
型号: DS1390U-3+T&R
厂商: Maxim Integrated Products
文件页数: 20/26页
文件大小: 0K
描述: IC RTC SPI 3WIRE W/CHRGR 10-MSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 3,000
类型: 时钟/日历
特点: 警报器,闰年,方波输出,涓流充电器
时间格式: HH:MM:SS:hh(12/24 小时)
数据格式: YY-MM-DD-dd
接口: SPI
电源电压: 2.7 V ~ 3.3 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: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-µMAX
包装: 带卷 (TR)
DS1390–DS1394
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
3
Maxim Integrated
RECOMMENDED DC OPERATING CONDITIONS (continued)
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at nominal supply voltage and TA = +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
-33
115
175
-3
80
125
VCC Standby Current
(Note 11)
ICCS
-18
60
100
A
VBACKUP Leakage Current
(VBACKUP = 3.7V,
VCC = VCC(MAX))
IBACKUPLKG
15
100
nA
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBACKUP = 3.7V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VBACKUP Current OSC On,
SQW Off
IBACKUP1
(Note 12)
500
1000
nA
VBACKUP Current OSC On,
SQW On (32kHz)
IBACKUP2
(Note 12)
600
1150
nA
VBACKUP Current OSC On,
SQW On, VBACKUP = 3.0V,
TA = +25°C
IBACKUP3
(Note 12)
600
1000
nA
VBACKUP Current, OSC Off
(Data Retention)
IBACKUPDR (Note 12)
25
100
nA
AC ELECTRICAL CHARACTERISTICS—SPI INTERFACE
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
2.7V
VCC
5.5V
0
4
SCLK Frequency (Note 13)
fSCLK
1.71V
VCC
1.89V
0
1
MHz
Data to SCLK Setup
tDC
(Notes 13, 14)
30
ns
SCLK to Data Hold
tCDH
(Notes 13, 14)
30
ns
2.7V
VCC
5.5V
80
SCLK to Data Valid
(Notes 13, 14, 15)
tCDD
1.71V
VCC
1.89V
160
ns
2.7V
VCC
5.5V
110
SCLK Low Time (Note 13)
tCL
1.71V
VCC
1.89V
400
ns
2.7V
VCC
5.5V
110
SCLK High Time (Note 13)
tCH
1.71V
VCC
1.89V
400
ns
SCLK Rise and Fall
tR, tF
200
ns
CS to SCLK Setup (Note 13)
tCC
400
ns
SCLK to CS Hold (Note 13)
tCCH
100
ns
2.7V
VCC
5.5V
400
CS Inactive Time (Note 13)
tCWH
1.71V
VCC
1.89V
500
ns
CS to Output High Impedance
tCDZ
(Notes 13, 14)
40
ns
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