參數(shù)資料
型號(hào): DS3234S#T&R
廠商: Maxim Integrated Products
文件頁數(shù): 4/21頁
文件大?。?/td> 0K
描述: IC RTC W/TCXO 20-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
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,NVSRAM,方波輸出,TCXO/晶體
存儲(chǔ)容量: 256B
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: 2 V ~ 5.5 V
電壓 - 電源,電池: 2 V ~ 3.8 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 帶卷 (TR)
DS3234
Extremely Accurate SPI Bus RTC with
Integrated Crystal and SRAM
12
____________________________________________________________________
Figure 1. Address Map for DS3234 Timekeeping Registers and SRAM
Note: Unless otherwise specified, the registers’ state is not defined when power is first applied. Bits defined as 0 cannot be written
to 1 and will always read 0.
ADDRESS
READ/WRITE
MSB
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
LSB
BIT 0
FUNCTION
RANGE
00h
80h
0
10 Seconds
Seconds
00–59
01h
81h
0
10 Minutes
Minutes
00–59
AM/PM
02h
82h
0
12/24
20 hr
10 hr
Hour
Hours
1-12 +AM /PM
00-23
03h
83h
0
Day
1-7
04h
84h
0
10 Date
Date
01-31
05h
85h
Century
0
10 Mo
Month
Month/
Century
01-12 + Century
06h
86h
10 Year
Year
00-99
07h
87h
A1M1
10 Seconds
Seconds
Alarm 1
Seconds
00-59
08h
88h
A1M2
10 Minutes
Minutes
Alarm 1
Minutes
00-59
AM/PM
09h
89h
A1M3
12/24
20 hr
10 hr
Hour
Alarm 1
Hours
1-12 +AM /PM
00-23
0Ah
8Ah
A1M4
DY/DT
0
10 Date
Day
Date
Alarm 1 Day
Alarm 1 Date
1-7
01-31
0Bh
8Bh
A2M2
10 Minutes
Minutes
Alarm 2
Minutes
00-59
AM/PM
0Ch
8Ch
A2M3
12/24
20 hr
10 hr
Hour
Alarm 2
Hours
1-12 +AM /PM
00-23
0Dh
8Dh
A2M4
DY/DT
0
10 Date
Day
Date
Alarm 2 Day
Alarm 2 Date
1-7
01-31
0Eh
8Eh
EOSC
BBSQW
CONV
RS2
RS1
INTCN
A2IE
A1IE
Control
0Fh
8Fh
OSF
BB32kHz
CRATE1 CRATE0 EN32kHz
BSY
A2F
A1F
Control/
Status
10h
90h
SIGN
DATA
Crystal Aging
Offset
11h
91h
SIGN
DATA
Temp MSB
Read Only
12h
92h
DATA
0
Temp LSB
Read Only
13h
93h
0
BB_TD
Disable
Temp
Conversions
14h–17h
94h–97h
Reserved
18h
98h
A7
A6
A5
A4
A3
A2
A1
A0
SRAM
Address
19h
99h
D7
D6
D5
D4
D3
D2
D1
D0
SRAM Data
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