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參數資料
| 型號： | HT82A821R_07 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | USB Audio MCU |
| 中文描述： | USB音頻控制器 |
| 文件頁數： | 3/39頁 |
| 文件大?。?/td> | 275K |
| 代理商： | HT82A821R_07 |
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Pin Description
Pin No. Pin Name
I/O
Description
4~1,
24~21
PA0~PA7
I/O
Bidirectional 8-bit input/output port. Each bit can be configured as wake-up input by
mask option. Software instructions determine the CMOS output or Schmitt trigger input
with or without pull-high (by mask option).
5
AVDD2
Audio power amplifier positive power supply.
6
ROUT
O
Right driver analog output
7
LOUT
O
Left driver analog output
8
AVSS2
Audio power amplifier negative power supply, ground
9
AVSS1
Audio DAC negative power supply, ground
10
BIAS
O
Connect a capacitor to ground to increase half-supply stability
11
AVDD1
Audio DAC positive power supply
12
DVSS2
Negative digital & I/O power supply, ground
13
14
OSCI
OSCO
I
O
OSCI, OSCO are connected to an 6MHz or 12MHz crystal/resonator (determined by
software instructions) for the internal system clock
15
RESET
I
Schmitt trigger reset input, active low
16
DVDD1
Positive digital power supply
17
USBDN
I/O
USBDN is USBD- line
USB function is controlled by software control register
18
USBDP
I/O
USBDP is USBD+ line
USB function is controlled by software control register
19
V33O
O
3.3V regulator output
20
DVSS1
Negative digital power supply, ground
Absolute Maximum Ratings
Supply Voltage...........................V
SS
0.3V to V
SS
+6.0V
Storage Temperature............................ 50 C to 125 C
Input Voltage..............................V
SS
0.3V to V
DD
+0.3V
Operating Temperature........................... 40 C to 85 C
I
OL
Total ..............................................................150mA
I
OH
Total............................................................ 100mA
Total Power Dissipation.....................................500mW
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
HT82A821R
Rev. 1.10
3
June 29, 2007
相關PDF資料 |
PDF描述 |
|---|---|
| HT82A822R | USB Audio MCU |
| HT82A822R_07 | USB Audio MCU |
| HT82A832R | Basic USB Phone OTP MCU |
| HT82A850R | Audio MCU |
| HT82A851R | USB Audio MCU |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT82A822R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A822R_07 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A824R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A832R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
| HT82A832R_07 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
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