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| 型號(hào)： | AS1506-BTDT-10 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | 256-Tap DigiPot SPI EEPROM; Package Type: TDFN(3x3)-8; Resistance: 10,00 |
| 封裝： | TDFN(3x3)-8 |
| 文件頁(yè)數(shù)： | 9/17頁(yè) |
| 文件大?。?/td> | 535K |
| 代理商： | AS1506-BTDT-10 |
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Revision 1.02
9 - 17
AS1506
Datasheet - Detailed Description
8 Detailed Description
The AS1506 contains a resistor array with 255 resistive elements (tap points), and has a total end-to-end resistance of
10, 50, or 100k
Ω
(see Ordering Information on page 16)
.
The device provides high, low, and wiper terminals for a standard voltage-divider configuration. Pins HIGH, LOW, and
WIPER can be connected in any configuration as long as their voltages fall between GND and V
DD
.
A 3-wire, SPI-compatible serial interface controls movement of the wiper among the 256 tap points. The EEPROM
stores the wiper position and recalls the stored wiper position upon power-up. The EEPROM typically holds wiper data
for 150 years and up to 10M wiper store cycles.
Analog Circuit
The 256 tap points are accessible to the wiper along the resistor string between pins HIGH and LOW (similar to the
end terminals of a mechanical potentiometer). The wiper tap point is selected by programming 8 data bits and a control
byte via the 3-wire serial interface
(see Programming the Device on page 10)
.
Note:
Integrated power-on reset circuitry loads the wiper position from the EEPROM at power-up.
Digital Interface
The AS1506 uses an SPI-compatible 3-wire interface for command settings of the device consisting of two input sig-
nals (chip-select - CSN, and data clock - SCLK) and one bi-directional data pin (SDIO). Driving CSN low enables serial
interface and the command/data are passed into the device synchronously by each SCLK rising edge.
There are 16-bit commands for write data into the wiper register or the non-volatile memory, and 8-bit commands for
transferring data between wiper register and non-volatile memory and to read the data stored in the wiper register or
non-volatile memory. The 8-bit commands can be implemented in 16-bit command structure alternatively. In this case
the first 8 bits shifted through the SPI interface are not significant. The data byte passed at writing commands repre-
sents the position of the wiper.
After loading the 8- or 16-bit command while CSN is low, the loaded command is executed at the next rising edge of
CSN, simultaneously the serial interface is disabled. The CSN signal must be low during the whole serial input stream
through the SPI, otherwise data on the SPI interface are corrupted.
Note:
If the data-in stream does not exactly contain 8 or 16 digits, no command is executed at the rising edge of
CSN.
Figure 20. Serial Data Timing
Standby Mode
Low-power standby mode is enable at CSN high. After an read access standby mode is entered 2 cycles of SCLK
after issuing the last bit of the data wiper or non-volatile register. If the digital inputs are stable V
DD
or GND there is only
leakage power dissipation of the device.
This power dissipation is defined with 0.1uA (typ) at 25oC.
t
CSH
t
CP
t
CS1
t
CSW
t
DH
t
DS
t
CH
t
CL
t
CS0
t
CSS
...
...
...
CSN
SCLK
SDIO
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1506-BTDT-100 | 256-Tap DigiPot SPI EEPROM; Package Type: TDFN(3x3)-8; Resistance: 100,00 |
| AS1506-BTDT-50 | 256-Tap DigiPot SPI EEPROM; Package Type: TDFN(3x3)-8; Resistance: 50,00 |
| AS1507-BTDT-10 | 2x 256-Tap DigiPot SPI EEPROM; Package Type: TQFN(4x4)-16; Resistance: 10,00 |
| AS1507-BTDT-100 | 2x 256-Tap DigiPot SPI EEPROM; Package Type: TQFN(3x3)-16; Resistance: 100,00 |
| AS1507-BTDT-50 | 2x 256-Tap DigiPot SPI EEPROM; Package Type: TQFN(3x3)-16; Resistance: 50,00 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1506BTDT100 | 制造商:AMS 功能描述:IC DIGITAL POT 100KOHM 256 SGL TDFN-8 制造商:AMS 功能描述:IC, DIGITAL POT 100KOHM, 256, SGL TDFN-8; End To End Resistance:100kohm; Track Taper:Linear; Resistance Tolerance:(Not Available); Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Potentiometer IC Case Style:TDFN; No. of Pins:8 ;RoHS Compliant: Yes |
| AS1506-BTDT-100 | 功能描述:IC POT DGTL 100K SERIAL 8-TDFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AS1506-BTDT-100-1K | 功能描述:IC POT DGTL 100K SERIAL 8TDFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AS1506-BTDT-10-1K | 功能描述:IC POT DGTL 10K SERIAL 8TDFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT |
| AS1506BTDT50 | 制造商:AMS 功能描述:IC DIGITAL POT 50KOHM 256 SGL TDFN-8 制造商:AMS 功能描述:IC, DIGITAL POT, 50KOHM, 256, SGL TDFN-8; End To End Resistance:50kohm; Track Taper:Linear; Resistance Tolerance:(Not Available); Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Potentiometer IC Case Style:TDFN; No. of Pins:8 ;RoHS Compliant: Yes |
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