(V
參數(shù)資料
型號(hào): DS12R885S-33+T&R
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 18/23頁(yè)
文件大?。?/td> 0K
描述: IC RTC W/RAM 128 BYTE 24-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1,000
類(lèi)型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,NVSRAM,方波輸出,涓流充電器
存儲(chǔ)容量: 114B
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 2.97 V ~ 3.63 V
電壓 - 電源,電池: 2 V ~ 3.05 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 24-SOIC W
包裝: 帶卷 (TR)
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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