- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97859 > DS12887 (DALLAS SEMICONDUCTOR) 1 TIMER(S), REAL TIME CLOCK, PDIP24 PDF資料下載
參數(shù)資料
| 型號(hào)： | DS12887 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
| 封裝： | DIP-24 |
| 文件頁數(shù)： | 6/19頁 |
| 文件大?。?/td> | 584K |
| 代理商： | DS12887 |
DS12887
14 of 19
AC ELECTRICAL CHARACTERISTICS
(0
°C to 70°C; V
CC = 4.5V to 5.5V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Cycle Time
tCYC
385
DC
ns
Pulse Width, DS/E Low or RD/ WR High
PWEL
150
ns
Pulse Width, DS/E High or RD/ WR Low
PWEH
125
ns
Input Rise and Fall Time
tR, tF
30
ns
R/ W Hold Time
tRWH
10
ns
R/ W Setup Time Before DS/E
tRWS
50
ns
Chip Select Setup Time Before DS, WR ,
or RD
tCS
20
ns
Chip Select Hold Time
tCH
0
ns
Read Data Hold Time
tDHR
10
80
ns
Write Data Hold Time
tDHW
0
ns
Muxed Address Valid Time to AS/ALE
Fall
tASL
30
ns
Muxed Address Hold Time
tAHL
10
ns
Delay Time DS/E to AS/ALE Rise
tASD
20
ns
Pulse Width AS/ALE High
PWASH
60
ns
Delay Time, AS/ALE to DS/E Rise
tASED
40
ns
Output Data Delay Time From DS/E or
RD
tDDR
20
120
ns
6
Data Setup Time
tDSW
100
ns
Reset Pulse Width
tRWL
5
s
IRQ
Release from DS
tIRDS
2
s
IRQ
Release from RESET
tIRR
2
s
NOTES:
1. All voltages are referenced to ground.
2. All outputs are open.
3. The MOT pin has an internal pulldown of 20 K
.
4. Applies to the AD0–AD7 pins, the IRQ pin, and the SQW pin when each is in the high impedance
state.
5. The IRQ pin is open drain.
6. Measured with a load as shown in Figure 4.
7. Real time clock modules can be successfully processed through conventional wave–soldering
techniques as long as temperature exposure to the lithium energy source contained within does not
exceed +85
°C. However, post-solder cleaning with water washing techniques is acceptable, provided
that ultrasonic vibration is not used to prevent damage to the crystal.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1302S | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1302N | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1302SN | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1302 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1302Z | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS12887+ | 功能描述:實(shí)時(shí)時(shí)鐘 RTC 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 |
| DS12887A | 功能描述:實(shí)時(shí)時(shí)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(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 |
| DS12887A+ | 功能描述:實(shí)時(shí)時(shí)鐘 RTC 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 |
| DS1290 | 功能描述:計(jì)數(shù)器移位寄存器 RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| DS12C887 | 功能描述:實(shí)時(shí)時(shí)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(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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。