參數(shù)資料
型號(hào)： DS2432P
元件分類： DRAM
英文描述： 1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine
中文描述： 經(jīng)銷商，保護(hù)與沙的1 - Wire EEPROM的位- 1引擎
文件頁數(shù)： 30/30頁
文件大?。?/td> 165K
代理商： DS2432P
PRELIMINARY
AC ELECTRICAL CHARACTERISTICS
OVERDRIVE SPEED
PARAMETER
Time Slot
Write 1 Low Time
Write 0 Low Time
Read Low Time
Read Data Valid
Release Time
Read Data Setup
Recovery Time
Reset High Time
Reset Low Time
Presence Detect High
Presence Detect Low
Programming Time
SHA Computation Time
DS2432
30 of 30
(V
PUP
=2.8V to 5.25V; -40°C to +85°C)
TYP
MAX
16
2
16
2
2
1.5
4
1
SYMBOL
t
SLOT
t
LOW1
t
LOW0
t
LOWR
t
RDV
t
RELEASE
t
SU
t
REC
t
RSTH
t
RSTL
t
PDHIGH
t
PDLOW
t
PROG
t
CSHA
MIN
6
1
6
1
UNITS
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ms
ms
NOTES
10
0
4
1
48
48
2
8
80
6
24
10
2.0
1.0
9
NOTES:
1.
All voltages are referenced to ground.
2.
V
PUP
= external pull-up voltage.
3.
Input load is to ground.
4.
Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1 μs of this falling edge.
5.
Capacitance on the data pin could be 800 pF when power is first applied. If a 5 k
resistor is used to
pull up the data line to V
PUP
, 5 μs after power has been applied the parasite capacitance will not affect
normal communications.
6.
The reset low time (t
RSTL
) should be restricted to a maximum of 960 μs, to allow interrupt signaling,
otherwise, it could mask or conceal interrupt pulses.
7.
V
IH
is a function of the external pull-up resistor and V
PUP
.
8.
Under certain low voltage conditions V
ILMAX
may have to be reduced to as much as 0.5V to always
guarantee a Presence Pulse. V
IL
is a function of V
PUP
and the reset low time.
9.
During write operations to the EEPROM and during the computation of Message Authentication
Codes (MAC) the voltage on the 1-Wire bus must not fall below 2.8V. The computation of a MAC
takes maximum 2.0 ms. Copying scratchpad data to the EEPROM takes max. 10 ms.
10.
The optimal sampling point for the master is as close as possible to the end time of the t
RDV
period
without exceeding t
RDV
. For the case of a Read-one time slot, this maximizes the amount of time for
the pull-up resistor to recover the line to a high level. For a Read-zero time slot it ensures that a read
will occur before the fastest 1-Wire device releases the line (t
RELEASE
= 0).
相關(guān)PDF資料
PDF描述
DS2432X 1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine
DS2432 1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine(1K 位具有寫保護(hù)的1線EEPROM（帶SHA-1引擎）)
DS2433 4k-Bit 1-Wire EEPROM
DS2433-Z01 4K-Bit 1-Wire EEPROM
DS2433S 4k-Bit 1-Wire EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2432P R 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P T 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P/T&R 功能描述:電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
DS2432P+ 制造商:Maxim Integrated Products 功能描述:EEPROM SERL-1WIRE 1KBIT 4PAGES X 256 3.3V/5V 6PIN TSOC - Rail/Tube 制造商:Maxim Integrated Products 功能描述:1-WIRE 1KB EE W/SHA-1 TSOC PBFREE 制造商:Maxim Integrated Products 功能描述:EEPROM 1KB 1-WIRE 6TSOC 制造商:Maxim Integrated Products 功能描述:EEPROM, 1KB, 1-WIRE, 6TSOC 制造商:Maxim Integrated Products 功能描述:OPTOCOUPLERS; Memory Size:1Kbit; Memory Configuration:256 x 4; Supply Voltage Min:2.8V; Supply Voltage Max:5.25V; Memory Case Style:TSOC; No. of Pins:6; IC Interface Type:Serial; Operating Temperature Min:-40C ;RoHS Compliant: Yes
DS2432P+R 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Kb Protected 1-Wire EEPROM with SHA-1 Engine
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