參數(shù)資料
型號(hào): DS1344E-33+T&R
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 4/20頁(yè)
文件大?。?/td> 0K
描述: IC RTC SPI 3.3V 20TSSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,NVRAM,方波輸出,涓流充電器
存儲(chǔ)容量: 96B
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: SPI
電源電壓: 3 V ~ 5.5 V
電壓 - 電源,電池: 1.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 帶卷 (TR)
12
Maxim Integrated
Low-Current SPI/3-Wire RTCs
DS1343/DS1344
Table 1. Register Map
Table 2. Alarm Mask Bits
Note: Bits listed as 0 always read back as 0 and cannot be written to 1.
ADDRESS
BIT 7
MSB
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LSB
FUNCTION
RANGE
00h
0
10 Seconds
Seconds
00–59
01h
0
10 Minutes
Minutes
00–59
02h
0
12/24
AM/PM
10
Hours
Hour
Hours
1–12 +
AM/PM
00–23
20
Hours
03h
0
Day
1–7
04h
0
10 Date
Date
01–31
05h
Century
0
10
Month
Month/
Century
01–12 +
Century
06h
10 Year
Year
00–99
07h
A0M1
10 Seconds
Seconds
Alarm 0
Seconds
00–59
08h
A0M2
10 Minutes
Minutes
Alarm 0
Minutes
00–59
09h
A0M3
12/24
AM/PM
10
Hours
Hour
Alarm 0 Hours
1–12 +
AM/PM
00–23
20
Hours
0Ah
A0M4
0
Day
Alarm 0 Day
1–7
0Bh
A1M1
10 Seconds
Seconds
Alarm 1
Seconds
00–59
0Ch
A1M2
10 Minutes
Minutes
Alarm 1
Minutes
00–59
0Dh
A1M3
12/24
AM/PM
10
Hours
Hour
Alarm 1 Hours
1–12 +
AM/PM
00–23
20
Hours
0Eh
A1M4
0
Day
Alarm 1 Day
1–7
0Fh
EOSC
X
DOSF
EGFIL
SQW
INTCN
A1IE
A0IE
Control
10h
OSF
0
IRQF1
IRQF0
Status
11h
TCS3
TCS2
TCS1
TCS0
DS1
DS0
RS1
RS0
Trickle
Charger
12h–1Fh
Reserved
20h–7Fh
User RAM
00h–FFh
ALARM REGISTER MASK BITS (BIT 7)
ALARM RATE
A_M4
A_M3
A_M2
A_M1
1
Alarm once a second
1
0
Alarm when seconds match
1
0
Alarm when minutes and seconds match
1
0
Alarm when hours, minutes, and seconds match
0
Alarm when day, hours, minutes, and seconds match
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