參數(shù)資料
型號(hào)： DS2404B
英文描述： EconoRAM Time Chip
中文描述： EconoRAM時(shí)鐘芯片
文件頁(yè)數(shù)： 28/28頁(yè)
文件大?。?/td> 663K
代理商： DS2404B
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(guān)PDF資料
PDF描述
DS2404S EconoRAM Time Chip
DS2405 Addressable Switch
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DS2405V Addressable Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
DS2404FP000 制造商:Thomas & Betts 功能描述:200A,CON,3P4W,MG,404,3P480V
DS2404FP000/DF2029 制造商:Thomas & Betts 功能描述:RS DS2404FP000/DF2029 200A,CON,3P4W
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