參數(shù)資料
型號(hào)： DS28E04-100
元件分類(lèi)： DRAM
英文描述： 4096-Bit Addressable 1-Wire EEPROM with PIO
中文描述： 4096位、可尋址、1-Wire EEPROM，帶有PIO
文件頁(yè)數(shù)： 10/36頁(yè)
文件大?。?/td> 347K
代理商： DS28E04-100
DS28E04-100: 4096-Bit 1-Wire Addressable EEPROM with PIO
10 of 36
PIO Activity Latch State Register
ADDR
b7
0222h
0
The data in this register represents the current state of the PIO activity latches. This register is read using the Read
Memory command. This register is read-only. Each bit is associated with the activity latch of the respective PIO
channel. Bits 2 to 7 have no function; they always read 0. A state transition on a PIO pin, High
Low
High, of a duration greater than t
PWMIN
causes the associated bit in the register to be set to a 1. This register
is cleared to 00h by a power-on reset, or by successful execution of the
Reset Activity Latches
command.
The next three registers control the device's participation a Conditional Search ROM sequence. The interaction of
the various signals that determine whether the device responds to a conditional search is illustrated in Figure 7.
There is a selection mask, SM, to select the participating PIOs, a polarity selection SP to specify for each channel
whether the channel signal needs to be 1 or 0 to qualify, and a PLS bit to select either the activity latches or PIO
pins as inputs. The signals of all channels are fed into an AND gate as well as an OR gate. The CT bit finally
selects the AND’ed or OR’ed result as the conditional search response signal CSR. If CT is 0, the channel signal of
at least one
of the selected channels must match the corresponding polarity. If CT is 1, the channel signals of
all
selected channels must match the corresponding polarity.
Figure 7. CONDITIONAL SEARCH LOGIC
b6
0
b5
0
b4
0
b3
0
b2
0
b1
AL1
b0
AL0
Low or
AL1
P1
PLS
SP0
SM0
CT
SM1
SP1
AL0
P0
CSR
Channel 0
Channel 1
PORL
Conditional Search Channel Selection Mask Register
ADDR
b7
b6
0223h
0
0
The data in this register controls whether a PIO channel qualifies for participation in the conditional search
command. To include a PIO channel, the bits in this register that correspond to those channels need to be set to 1.
This register can only be written through the Write Register command. This register is read/write. Each bit is
associated with the respective PIO channel as shown in Figure 7. Bits 2 to 7 have no function; they always read 0
and cannot be changed to 1. This register is cleared to 00h by a power-on reset.
b5
0
b4
0
b3
0
b2
0
b1
SM1
b0
SM0
相關(guān)PDF資料
PDF描述
DS28E04S-100 4096-Bit Addressable 1-Wire EEPROM with PIO
DS3151 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3151N Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3152 Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3152N Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS28E04S100 制造商:Maxim Integrated Products 功能描述:
DS28E04S-100 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
DS28E04S-100/T 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
DS28E04S-100+ 功能描述:電可擦除可編程只讀存儲(chǔ)器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲(chǔ)器 w/PIO 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
DS28E04S-100+T 功能描述:電可擦除可編程只讀存儲(chǔ)器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲(chǔ)器 w/PIO 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
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