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參數(shù)資料
| 型號： | DS3930 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | RELIABILITY REPORT FOR DS3930, REV A1 |
| 中文描述： | 六進(jìn)制非易失電位器，帶有輸入/輸出和存儲器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 616K |
| 代理商： | DS3930 |
D
Hex Nonvolatile Potentiometer with
I/O and Memory
8
______________________________________________________________________
I/O Signals
The I/O pins can be used as general-purpose digital
I/O signals. The I/O pins have CMOS outputs with an
internal pullup resistor (see Figure 2). The I/O pins are
configured with the I/O Control register (F6h) and moni-
tored with the I/O State register (F7h). The I/O Control
register controls the state of the internal pullup resistor
(R
I/O
) with bits 7 to 4 and the I/O pin setting with bits 3
to 0 (see Table 1). The read-only values of the I/O State
register contains the values of the I/O pin setting bits of
the I/O Control register unless the I/O output is tri-stat-
ed. When the I/O is tri-stated the I/O State register will
read high or low depending on the external source on
the I/O pin. Since the I/O pins are controlled by EEP-
ROM, the number of writes is limited.
Memory
The memory map is shown in Table 2.
Table 2. Memory Map
ADDRESS
00h to 3Fh
40h to EFh
F0h
F1h
F2h
F3h
F4h
F5h
F6h
BIT
DEFAULT (HEX)
FF
FF
FF
FF
FF
FF
FF
FF
0F
FUNCTION
64 bytes of general-purpose EEPROM
Reserved
Controls potentiometer 0
Controls potentiometer 1
Controls potentiometer 2
Controls potentiometer 3
Controls potentiometer 4
Controls potentiometer 5
I/O Control
Set to 0 to enable I/O
3
pullup, set to 1 to disable pullup
Set to 0 to enable I/O
2
pullup, set to 1 to disable pullup
Set to 0 to enable I/O
1
pullup, set to 1 to disable pullup
Set to 0 to enable I/O
0
pullup, set to 1 to disable pullup
Sets I/O
3
to 0 or 1
Sets I/O
2
to 0 or 1
Sets I/O
1
to 0 or 1
Sets I/O
0
to 0 or 1
I/O State
0
0
0
0
Contains state of I/O
3
pin (read only)
Contains state of I/O
2
pin (read only)
Contains state of I/O
1
pin (read only)
Contains state of I/O
0
pin (read only)
Reserved
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
F7h
0X
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
F8h to FFh
FF
PULLUP CTRL
(I/O CONTROL
REGISTER)
(BITS 7 TO 4)
I/O PIN SETTING
(I/O CONTROL
REGISTER)
(BITS 3 TO 0)
I/O PIN OUTPUT
0
0
1
1
0
1
0
1
0
1
0
Pullup disabled (HI-Z)
Table 1. I/O Pin Truth Table
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|---|---|
| DS3930E | 功能描述:數(shù)字電位計(jì) IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS3930E/T&R | 制造商:Maxim Integrated Products 功能描述:HEX NV POT WITH I/O & MEM T&R - Tape and Reel |
| DS3930E/T&R | 功能描述:數(shù)字電位計(jì) IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS3930E+ | 功能描述:數(shù)字電位計(jì) IC Hex Nonvolatile w/I/O & Memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS3930E+T&R | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 256POS 16.5KOHM HEX 20TSSOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT NV HEX I/O MEM 20-TSSOP 制造商:Maxim Integrated Products 功能描述:Digital Potentiometer ICs Hex Nonvolatile w/I/O & Memory |
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