- 您现在的位置：买卖IC网 > Datasheet目录322 > DS28E04S-100+T (Maxim Integrated Products)IC EEPROM 4KBIT 16SOIC Datasheet资料下载
参数资料
| 型号： | DS28E04S-100+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/37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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页当前第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
DS28E04-100: 4096-Bit 1-Wire Addressable EEPROM with PIO
Figure 13. Hardware Configuration
BUS MASTER
V PUP
R PUP
DS28E04 1-Wire PORT
RX
DATA
RX
TX
Open-Drain
Port Pin
RX = RECEIVE
TX = TRANSMIT
11μA
Max.
100 ?
MOSFET
TX
TRANSACTION SEQUENCE
The protocol for accessing the DS28E04-100 through the 1-Wire port is as follows:
?
?
?
?
Initialization
ROM Function Command
Memory/Control Function Command
Transaction/Data
INITIALIZATION
All transactions on the 1-Wire bus begin with an initialization sequence. The initialization sequence consists of a
reset pulse transmitted by the bus master followed by presence pulse(s) transmitted by the slave(s). The presence
pulse lets the bus master know that the DS28E04-100 is on the bus and is ready to operate. For more details, see
the 1-Wire Signaling section.
1-Wire ROM FUNCTION COMMANDS
Once the bus master has detected a presence, it can issue one of the eight ROM function commands that the
DS28E04-100 supports. All ROM function commands are 8 bits long. A list of these commands follows (refer to the
flow chart in Figure 14).
READ ROM [33h]
This command allows the bus master to read the DS28E04-100’s 8-bit family code, unique 40-bit serial number, 8-
bit address byte, and 8-bit CRC. The lower order 7 bits of the address byte read back the state of the address pins
A6 to A0. See also Figure 3. This command can only be used if there is a single slave on the bus. If more than one
slave is present on the bus, a data collision occurs when all slaves try to transmit at the same time (open drain
produces a wired-AND result). The resultant family code and 48-bit serial number result in a mismatch of the CRC.
Note that there will also be a CRC mismatch if one or more of the external address inputs are connected to GND.
The ROM CRC is hardcoded with A6 to A0 set to 1s. The master should comprehend this and calculate the ROM
CRC similarly.
MATCH ROM [55h]
The Match ROM command, followed by a 64-bit ROM sequence, allows the bus master to address a specific
DS28E04-100 on a multidrop bus. Only the DS28E04-100 that exactly matches the 64-bit ROM sequence,
including the external address, responds to the following Memory/Control Function command. All other slaves wait
for a reset pulse. This command can be used with a single or multiple devices on the bus.
23 of 37
相关PDF资料 |
PDF描述 |
|---|---|
| DS28EC20+T | IC EEPROM 20KBIT TO92-3 |
| DS301X | KWIK-CHG DESIGNATION STRIP SGL |
| DS3030W-100# | IC NVSRAM 256KBIT 100NS 256BGA |
| DS3045W-100# | IC NVSRAM 1MBIT 100NS 256BGA |
| DS3050W-100# | IC NVSRAM 4MBIT 100NS 256BGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
发布紧急采购，3分钟左右您将得到回复。