- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371783 > HCS473-PROM (Microchip Technology Inc.) Code Hopping Encoder and Transponder PDF資料下載
參數(shù)資料
| 型號： | HCS473-PROM |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Code Hopping Encoder and Transponder |
| 中文描述： | 跳碼編碼器和轉(zhuǎn)發(fā)器 |
| 文件頁數(shù)： | 11/68頁 |
| 文件大小： | 1629K |
| 代理商： | HCS473-PROM |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
2002 Microchip Technology Inc.
Preliminary
DS40035C-page 9
HCS473
2.3.5
INTERNAL RC OSCILLATOR
The HCS473 runs on an internal RC oscillator. The
internal oscillator may vary ±10% over the device’s
rated voltage and temperature range for commercial
temperature devices. A certain percentage of indus-
trial temperature devices vary further on the slow side,
-20%, when used at higher voltages (V
DD
> 3.5V) and
cold temperature. The LF and RF communication
timing values are subject to these variations.
2.3.6
LOW VOLTAGE DETECTOR
The HCS473’s battery voltage detector detects when
the supply voltage drops below a predetermined value.
The value is selected by the Low Voltage Trip Point
Select (VLOWSEL) configuration option (Section 3.3).
The low voltage detector result is included in encoder
transmissions (VLOW) allowing the receiver to indicate
when the transmitter battery is low (Section 3.1.4.6).
The HCS473 also indicates a low battery condition by
changing the LED operation (Section 3.1.5).
2.3.7
THE S3/RFEN PIN
The S3/RFEN pin may be used as a button input or RF
enable output to a compatible PLL. Select between S3
button input and RFEN functionality with the RFEN
configuration option (Table 2-2).
TABLE 2-2:
RFEN OPTION
RFEN
Resulting S3/RFEN Configuration
0
S3 button input pin with Schmitt Trigger
detector and internal pull-down resistor.
RFEN output driver.
S3 may not be used as a button input if the
RFEN option is enabled
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCS473-PSQTP | IC EEPROM SRL 512X16BIT 8DIP |
| HCS473-SLQTP | Code Hopping Encoder and Transponder |
| HCS473-SLROM | Code Hopping Encoder and Transponder |
| HCS473-SLSQTP | Code Hopping Encoder and Transponder |
| HCS473IPQTP | Code Hopping Encoder and Transponder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCS473PSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-PSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473SLQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-SLQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473SLROM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。