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参数资料
| 型号： | DS28EC20+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/27页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 20KBIT TO92-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 20K（256 x 80） |
| 接口： | 1 线 串行 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
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DS28EC20: 20Kb 1-Wire EEPROM
Figure 7-1. Memory Function Flowchart
Bus Master TX Memory
Function Command
From ROM Functions
Flow Chart (Figure 9)
2
Part
0Fh
Write Scratch-
pad ?
Y
N
To Figure 7,
nd
Bus Master TX EEPROM
Array Target Address
TA1 (T[7:0]), TA2 (T[15:8])
DS28EC20 sets Scratch-
pad Offset = (T[4:0]),
Clears PF, AA, BS
Master TX Data Byte
To Scratchpad Offset
DS28EC20 sets (E[4:0]) =
Scratchpad Offset
Note : The PF Flag is set upon power-
on reset. It is cleared only if a com-
plete 16-bit target address is trans-
mitted. Sending less than 16 bits for
the target address sets the PF flag.
If the memory is write-protected , the
DS28EC20 copies the data byte from
the target address into the scratchpad.
If the memory is in EPROM mode , the
DS28EC20 stores the bitwise logical
AND of the transmitted byte and the
data byte from the targeted address
into the scratchpad.
DS28EC20
Increments
Scratchpad
Offset
N
Master
TX Reset ?
N
Scrpad. Offset
= 11111b?
Y
Y
Partial
Byte ?
Y
PF = 1
N
DS28EC20 TX CRC16
of Command, Address,
Data Bytes as they were
sent by the bus master
2
Part
Bus Master
RX “1”s
N
Master
TX Reset?
Y
To ROM Functions
Flow Chart (Figure 9)
12 of 27
From Figure 7,
nd
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相关代理商/技术参数 |
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| DS28EL15 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM |
| DS28EL15Q+T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM |
| DS28EL25 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:DeepCover Secure Authenticator with 1-Wire SHA-256 with 4Kb User EEPROM |
| DS28EL25Q+T | 制造商:Maxim Integrated Products 功能描述:1-WIRE 1.8V 4KB EEPROM WITH SHA-256 TDFN T&R - Tape and Reel |
| DS28-L147-203 | 制造商:CONEXANT 制造商全称:CONEXANT 功能描述:SmartV.XX Modem |
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