參數(shù)資料
型號(hào)： AT43USB320A-AC
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Full-speed USB Microcontroller with an Embedded Hub
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, MS-026AED, LQFP-100
文件頁數(shù)： 5/115頁
文件大?。?/td> 722K
代理商： AT43USB320A-AC
5
AT43USB320A
1443E–USB–4/04
Signal Description
Name
Type
Function
V
CC
Power Supply/Ground
5V Power Supply
V
SS
Power Supply/Ground
Ground
CEXT1, 2
Power Supply/Ground
External Capacitors for Power Supplies
– High quality 0.33 μF capacitors must
be connected to CEXT1 and 2 for proper operation of the chip.
XTAL1
Input
Oscillator Input
– Input to the inverting oscillator amplifier.
XTAL2
Output
Oscillator Output
– Output of the inverting oscillator amplifier.
LFT
Input
PLL Filter
– For proper operation of the PLL, this pin should be connected through
a 0.01 μF capacitor in parallel with a 100
resistor in series with a 0.22 μF
capacitor to ground (VSS). Both capacitors must be high quality ceramic.
DPO
Bi-directional
Upstream Plus USB I/O
– This pin should be connected to CEXT1 through an
external 1.5 k
.
DMO
Bi-directional
Upstream Minus USB I/O
DP[1:4]
Bi-directional
Downstream Plus USB I/O
– Each of these pins should be connected to VSS
through an external 15 k
resistor. DP[1:4] and DM[1:4] are the differential signal
pin pairs to connect downstream USB devices.
DM[1:4]
Bi-directional
Downstream Minus USB I/O
– Each of these pins should be connected to VSS
through an external 15 k
resistor.
PA[0:7]
Bi-directional
Port A[0:7]
– Bi-directional 8-bit I/O port with 4 mA drive strength.
PB[0:7]
Bi-directional
Port B[0:7]
– Bi-directional 8-bit I/O port with 4 mA drive. PB[0,1,4:7] have dual
functions as shown below:
Port Pin
Alternate Function
PB0
T0, Timer/Counter0 External Input
PB1
T1, Timer/Counter1 External Input
PB4
SSN, SPI Slave Port Select or SCL, I2C Serial Bus Clock
PB5
MOSI, SPI Slave Port Select Input
PB6
MISO, SPI Master Data In, Slave Data Out
PB7
SCK, SPI Master Clock Out, Slave Clock In
PC[0:7]
Bi-directional
Port C[0:7]
– Bi-directional 8-bit I/O port with 4 mA drive strength.
PD[0:7]
Bi-directional
Port D[0:7]
– Bi-directional I/O ports with 4 mA drive strength. PD[0:3,5] have dual
functions as shown below:
Port Pin
Alternate Function
PD0
RXD, Serial Input Port
PD1
TXD, Serial Input Port
PD2
INT0, External Interrupt 0
PD3
INT1, External Interrupt 1
PD5
OC1A Timer/Counter1 Output Compare A
TESTN
Input
Test Pin
– This pin should be tied to ground.
SUSPEND
Output
Suspend
– This pin is asserted when the AT43USB320A enters the Suspend
status. In the 55618D, it is active low and in the 55618E and later versions, it is
active high.
相關(guān)PDF資料
PDF描述
AT43USB321 Full-speed USB Hub/Function Microcontroller
AT43USB325E-AC Multimedia USB Keyboard Controller with Embedded Hub
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AT43USB326-AU Multimedia USB Keyboard Controller with Embedded Hub
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB321 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Hub/Function Microcontroller
AT43USB324AC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER
AT43USB324YC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER
AT43USB325 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB325_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub
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