(TA
參數(shù)資料
型號(hào): DS1557WP-120IND
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 4/17頁(yè)
文件大?。?/td> 0K
描述: IC RTC RAM Y2K 3.3V 120NS 34PCM
標(biāo)準(zhǔn)包裝: 40
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,NVSRAM,監(jiān)視計(jì)時(shí)器,Y2K
存儲(chǔ)容量: 512KB
時(shí)間格式: HH:MM:SS(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: 3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 34-PowerCap? 模塊
供應(yīng)商設(shè)備封裝: 34-PowerCap 模塊
包裝: 管件
DS1557 4Meg, Nonvolatile, Y2K-Compliant Timekeeping RAM
12 of 17
AC CHARACTERISTICS—READ CYCLE
(TA = Over the Operating Range)
VCC = 5.0V 10%
VCC = 3.3V 10%
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
Read Cycle Time
tRC
70
120
ns
Address Access Time
tAA
70
120
ns
CE to DQ Low-Z
tCEL
5
ns
CE Access Time
tCEA
70
120
ns
CE Data Off Time
tCEZ
25
40
ns
OE to DQ Low-Z
tOEL
5
ns
OE Access Time
tOEA
35
100
ns
OE Data Off Time
tOEZ
25
35
ns
Output Hold from Address
tOH
5
ns
AC CHARACTERISTICS—WRITE CYCLE
(TA = Over the Operating Range)
VCC = 5.0V 10%
VCC = 3.3V 10%
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
Write Cycle Time
tWC
70
120
ns
Address Access Time
tAS
0
ns
WE Pulse Width
tWEW
50
100
ns
CE Pulse Width
tCEW
60
110
ns
Data Setup Time
tDS
30
80
ns
Data Hold Time (Note 9)
tDH1
5
ns
Data Hold Time (Note 10)
tDH2
5
ns
Address Hold Time (Note 9)
tAH1
5
0
ns
Address Hold Time
(Note 10)
tAH2
5
ns
WE Data Off Time
tWEZ
25
40
ns
Write Recovery Time
tWR
5
10
ns
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DS1557WP-120IND+ 功能描述:實(shí)時(shí)時(shí)鐘 4M NV RAM Timekeeper RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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