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參數資料
| 型號： | DS2404-001 |
| 英文描述： | EconoRAM Time Chip |
| 中文描述： | EconoRAM時鐘芯片 |
| 文件頁數： | 28/28頁 |
| 文件大?。?/td> | 663K |
| 代理商： | DS2404-001 |
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DS2404
28 of 28
020998
NOTES:
1.
All voltages are referenced to ground.
2.
V
IH
= 2.0V or V
IL
= 0.8V with 10 ns maximum rise and fall time.
3.
V
DQH
= 2.4V and V
DQL
= 0.4V, respectively.
4.
Load capacitance = 50 pF.
5.
Measured with outputs open.
6.
When battery is applied to V
BATO
input, V
CC
and V
BATB
must be 0V.
7.
V
BATB
, or V
BATO
= 3.0V; all inputs inactive state.
8.
Capacitance on the I/O pin could be 800 pF when power is first applied. If a 5k
resistor is used to
pullup the I/O line to V
PUP
, 5
μ
s after power has been applied, the parasite capacitance will not affect
normal communications.
9.
For auto-mode operation of the interval timer, the high level on the I/O pin must be greater than or
equal to 70% of V
CC
or V
BATO
.
10.
Read and write scratchpad (all 32 bytes) at 3.0V.
11.
All other inputs at CMOS levels.
12.
V
PUP
= external pullup voltage.
13.
Input load is to ground.
14.
An additional reset or communication sequence cannot begin until the reset high time has expired.
15.
Read data setup time refers to the time the host must pull the I/O line low to read a bit. Data is
guaranteed to be valid within 1
μ
s of this falling edge.
16.
Under certain low voltage conditions V
IL1MAX
may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
17.
Applies to 1Hz and
IRQ
pins only.
18.
Applies to DQ pin only.
19.
Applies to DQ, 1Hz and
IRQ
pins only.
20.
The reset low time (t
RSTL
) should be restricted to a maximum of 960
μ
s, to allow interrupt signaling,
otherwise, it could mask or conceal interrupt pulses.
21.
When the battery is attached, the oscillator powers up in the off state.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2404B | EconoRAM Time Chip |
| DS2404S | EconoRAM Time Chip |
| DS2405 | Addressable Switch |
| DS2405P | Addressable Switch |
| DS2405T | Addressable Switch |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS2404-001+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16PDIP - Rail/Tube |
| DS2404B | 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 |
| DS2404B/T&R | 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, SSOP16-TRL (GENERIC) - Tape and Reel |
| DS2404B+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Rail/Tube |
| DS2404B+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Tape and Reel |
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