参数资料
型号: DS12CR887-5+
厂商: Maxim Integrated Products
文件页数: 18/23页
文件大小: 0K
描述: IC RTC W/RAM 128 BYTE 24-EDIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 14
类型: 时钟/日历
特点: 警报器,闰年,NVSRAM,方波输出,涓流充电器
存储容量: 114B
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
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 24-DIP 模块(0.600",15.24mm)
供应商设备封装: 24-EDIP
包装: 管件
产品目录页面: 1433 (CN2011-ZH PDF)
DS12R885/DS12CR887/DS12R887
RTCs with Constant-Voltage Trickle Charger
4
Maxim Integrated
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.97V to 3.63V, TA = -40°C to +85°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Cycle Time
tCYC
280
DC
ns
Pulse Width, DS Low or R/W High
PWEL
130
ns
Pulse Width, DS High or R/W Low
PWEH
90
ns
Input Rise and Fall
tR, tF
30
ns
R/W Hold Time
tRWH
0
ns
R/W Setup Time Before DS
tRWS
15
ns
Chip-Select Setup Time Before
DS or R/W
tCS
8
ns
Chip-Select Hold Time
tCH
0
ns
Read-Data Hold Time
tDHR
5
55
ns
Write-Data Hold Time
tDHW
0
ns
Address Valid Time to AS Fall
tASL
30
ns
Address Hold Time to AS Fall
tAHL
15
ns
Delay Time DS to AS Rise
tASD
15
ns
Pulse Width AS High
PWASH
45
ns
Delay Time, AS to DS Rise
tASED
55
ns
Output Data Delay Time from DS
or R/W
tDDR
(Note 8)
20
80
ns
Data Setup Time
tDSW
70
ns
Reset Pulse Width
tRWL
5
μs
IRQ Release from DS
tIRDS
0
2
μs
IRQ Release from RESET
tIRR
0
2
μs
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