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參數(shù)資料
| 型號： | DS28E04S-100 |
| 元件分類： | DRAM |
| 英文描述： | 4096-Bit Addressable 1-Wire EEPROM with PIO |
| 中文描述： | 4096位尋址1 - Wire EEPROM，帶有先鋒 |
| 文件頁數(shù)： | 9/36頁 |
| 文件大?。?/td> | 347K |
| 代理商： | DS28E04S-100 |
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DS28E04-100: 4096-Bit 1-Wire Addressable EEPROM with PIO
9 of 36
PIO-RELATED REGISTERS
Figure 6 shows the simplified logic diagram of a PIO channel.
The registers related to the PIO pins are located in
the address range 0220h to 0225h. All these registers are volatile, i.e., they lose their state when the device is
powered down. All PIO-related registers can be read like any data memory. There are special commands to control
the PIOs for input (read), output (write), pulse-generation, and to reset the activity latches.
Figure 6. PIO Simplified Logic Diagram
To PIO Logic
State Register
PIO Output
Latch
PIO Activity
Latch
Edge
Detector
Port
Function
Control
To Activity Latch
State Register
To PIO Output
Latch State Reg.
R
Q
D
D
Q
Q
Q
"1"
CLR ACT LATCH
P0, P1
DATA
CLOCK
POWER ON
RESET
PIO Logic State Register
ADDR
0220h
The logic state of the PIO pins can be obtained by reading this register using the Read Memory command. This
register is read-only. Each bit is associated with the pin of the respective PIO channel. Bits 2 to 7 have no function;
they always read 1. The data in this register reflects the PIO state at the last (most significant) bit of the byte that
proceeds reading the first (least significant) bit of this register. See the
PIO Access Read
command description for
details.
PIO Output Latch State Register
ADDR
b7
b6
b5
b4
b3
0221h
1
1
1
1
1
The data in this register represents the latest data written to the PIOs through the PIO Access Write command.
This register is read using the Read Memory command. This register is not affected if the device re-initializes itself
after an ESD hit. This register is read-only. Each bit is associated with the output latch of the respective PIO
channel. Bits 2 to 7 have no function; they always read 1. The flip-flops of this register power up as specified by the
state of the POL pin. If the chip has to power up with all PIO channels off, the POL pin must be connected to a logic
"1".
b7
1
b6
1
b5
1
b4
1
b3
1
b2
1
b1
P1
b0
P0
b2
1
b1
PL1
b0
PL0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS28E04S-100/T | 功能描述:電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲器 w/PIO RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲器 w/PIO RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS28E04S-224-BB+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| DS28E05P+ | 功能描述:電可擦除可編程只讀存儲器 1W 1KB FTP MEMORY TSOC RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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