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| 型号： | DS28E04S-100+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/37页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 4KBIT 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 4K (256 x 16) |
| 接口： | 1 线 串行 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
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DS28E04-100: 4096-Bit 1-Wire Addressable EEPROM with PIO
PIO Activity Latch State Register
ADDR
b7
b6
b5
b4
b3
b2
b1
b0
0222h 0 0 0 0 0 0 AL1 AL0
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 or
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 ANDed or ORed 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
PLS
Channel 0
SP0
SM0
CT
AL0
P0
CSR
AL1
Channel 1
SP1
SM1
PORL
P1
Conditional Search Channel Selection Mask Register
ADDR
b7
b6
b5
b4
b3
b2
b1
b0
0223h 0 0 0 0 0 0 SM1 SM0
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.
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相关代理商/技术参数 |
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| DS28E04S-224-BB+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| DS28E05P+ | 功能描述:电可擦除可编程只读存储器 1W 1KB FTP MEMORY TSOC RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS28E05P+T | 功能描述:电可擦除可编程只读存储器 1W 1KB FTP MEMORY TSOC RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS28E05R+T | 功能描述:电可擦除可编程只读存储器 1-Wire 112-BYTE 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS28E10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire SHA-1 Authenticator Irreversible Write Protection |
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