参数资料
型号: DS1685QN-5+
厂商: Maxim Integrated Products
文件页数: 22/34页
文件大小: 0K
描述: IC RTC 5V 64-BIT Y2KC IND 28PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 37
类型: 时钟/日历
特点: 警报器,NVSRAM,方波输出,Y2K
存储容量: 242B
时间格式: HH:MM:SS(12/24 小时)
数据格式: YY-MM-DD-dd
接口: 并联
电源电压: 4.5 V ~ 5.5 V
电压 - 电源,电池: 2.5 V ~ 3.7 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-LCC(J 形引线)
供应商设备封装: 28-PLCC(11.51x11.51)
包装: 管件
产品目录页面: 1434 (CN2011-ZH PDF)
DS1685/DS1687 3V/5V Real-Time Clocks
29 of 34
POWER-UP/DOWN TIMING—5V
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CS
High to Power-Fail
tPF
0
ns
Recovery at Power-Up
tREC
150
ms
VCC Slew Rate Power-Down
tF
4.0 VCC 4.5V
300
s
VCC Slew Rate Power-Down
tFB
3.0 VCC 4.0V
10
s
VCC Slew Rate Power-Up
tR
4.5V VCC 4.0V
0
s
Expected Data Retention
tDR
10
years
9, 10
POWER-UP/DOWN TIMING—3V
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CS
High to Power-Fail
tPF
0
ns
Recovery at Power-Up
tREC
150
ms
VCC Slew Rate Power-Down
tF
2.5 ≤ VCC ≤ 2.7V
300
s
VCC Slew Rate Power-Up
tR
2.7V ≥ VCC ≥ 2.5V
0
s
Expected Data Retention
tDR
10
years
9, 10
WARNING: Under no circumstances are negative undershoots, of any amplitude, allowed
when device is in battery-backup mode.
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance on All Inputs
Except X1 and X2
CIN
12
pF
Output Capacitance on IRQ,
SQW and DQ pins
COUT
12
pF
WAKE-UP/KICKSTART TIMING
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Kickstart Input Pulse Width
tKSPW
2
s
Wake-Up/Kickstart Power On
Timeout
tPOTO
2
seconds
7
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