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參數資料
| 型號： | DS1678 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封裝： | 0.300 INCH, DIP-8 |
| 文件頁數： | 11/24頁 |
| 文件大?。?/td> | 301K |
| 代理商： | DS1678 |
DS1678
19 of 24
AC ELECTRICAL CHARACTERISTICS
(-40
°C to 85°C, VCC= 4.5V to 5.5V)
PARAMETER
SYMBOL CONDITION
MIN
TYP MAX UNITS NOTES
SCL clock frequency
fscl
Fast Mode
400
kHz
Standard Mode
100
Bus free time between
tbuf
Fast Mode
1.3
s
a STOP and START
condition
Standard Mode
4.7
Hold time (repeated)
thd:sta
Fast Mode
0.6
s
3
START condition.
Standard Mode
4.0
LOW period of SCL
tlow
Fast Mode
1.3
s
Standard Mode
4.7
HIGH period of SCL
thigh
Fast Mode
0.6
s
Standard Mode
4.0
Set-up time for a
tsu:sta
Fast Mode
0.6
s
repeated START
Standard Mode
4.7
Data hold time
thd:dat
Fast Mode
0
0.9
s
4
Standard Mode
0
Data set-up time
tsu:dat
Fast Mode
100
ns
5
Standard Mode
250
Spike pulse width
to be
tsp
Fast Mode
0
50
ns
suppressed
Standard Mode
n/a
Rise time of both
SDA
tr
Fast Mode
20+0.1Cb
300
ns
6,7
and SCL signals
Standard Mode
1000
Fall time of both SDA
tf
Fast Mode
20+0.1Cb
300
ns
6,7
and SCL signals
Standard Mode
Set-up time for STOP
tsu:sto
Fast Mode
0.6
s
Standard Mode
4.0
Capacitive load for
each bus line
Cb
400
pF
6
Input Capacitance
Ci
5pF
DATA TRANSFER ON 2-WIRE SERIAL BUS Figure 3
MSB
slave address
R/W
direction
bit
SDA
SCL
START
CONDITION
12
67
8
9
12
8
9
STOP CONDITION
OR
REPEATED
START CONDITION
3 - 8
acknowledgement
signal from receiver
acknowledgement
signal from receiver
ACK
repeated if more bytes
are transferred
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PDF描述 |
|---|---|
| DS1682S | 0 TIMER(S), TIME RECORDER, PDSO8 |
| DS1682 | 0 TIMER(S), TIME RECORDER, PDSO8 |
| DS1685-3 | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
| DS1687-5 | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
| DS1685Q-3 | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1678+ | 功能描述:實時時鐘 Real-Time Event Recorder 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1678J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-Input Digital Multiplexer |
| DS1678J/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-Input Digital Multiplexer |
| DS1678K | 功能描述:KIT EVAL RT EVENT RECORD DS1678 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| DS1678S | 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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