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參數(shù)資料
| 型號： | USB97C202-MN-05 |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP100 |
| 封裝： | 12 X 12 MM, 1.40 MM HEIGHT, STQFP-100 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 343K |
| 代理商： | USB97C202-MN-05 |
USB 2.0 ATA/ATAPI Controller
Datasheet
SMSC USB97C202
Page 11
Revision 1.6 (11-05-04)
DATASHEET
MISC
Crystal
Input/External
Clock Input
XTAL1/
CLKIN
ICLKx
12Mhz Crystal or external clock input.
This pin can be connected to one terminal of
the crystal or can be connected to an external
12Mhz clock when a crystal is not used.
Crystal Output XTAL2
OCLKx
12Mhz Crystal
This is the other terminal of the crystal, or left
open when an external clock source is used to
drive XTAL1/CLKIN. It may not be used to
drive any external circuitry other than the
crystal circuit.
Clock Output CLKOUT
O8
This pin produces a 30Mhz clock signal
independent of the processor clock divider. It is
held inactive and low whenever the internal
processor clock is stopped or is being obtained
from the ring oscillator.
Internal ROM
Enable
ROMEN
IP
When left unconnected or tied high, the
USB97C202 uses the internal ROM for
program execution. When tied low, an external
program memory should be connected to the
memory/data bus. The state of this pin latched
internally on the rising edge of nRESET.
General
Purpose I/O
GPIO[1:7]
IO20
These general purpose pins may be used
either as inputs, edge sensitive interrupt inputs,
or outputs. When using internal ROM mode,
these pins have the following assignments:
GPIO1: USB HS Indicator; active high. In part
number USB97C202-MN-03 or later ROM
codes, this pin also goes high during USB data
transfers.
GPIO2: Serial EEPROM (93LC66 type) Chip
Select
GPIO3: USB VBUS Detect Input
GPIO4: Serial EEPROM Data In/OutGPIO5:
ATA Drive Reset
GPIO6: A16 control line for external program
Flash memory when using firmware upgrade
capability (external ROM operation only)
GPIO7: Serial EEPROM Clock output
RESET input nRESET
IS
This active low signal is used by the system to
reset the chip. The active low pulse should be
at least 100ns wide.
Test input
nTEST[0:2]
IP
These signals are used for testing the chip.
User should normally leave them unconnected.
For board continuity testing, all pads (except
RBIAS, FSDP, USBDP, USBDM, FSDM,
RTERM, XTAL1, XTAL2, LOOPFLTR and
nTEST[0:2]) are included in an XNOR chain
which is enabled by pulling nTEST2 low. nIOR
is the output of the chain (the chain begins at
pin 2) and will reflect the toggling of a signal
on each pin. Circuit board continuity of the pin
solder connections after assembly can be
checked in this manner
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| USB97C202-MV-05 | 功能描述:接口 - 專用 USB 2.0 Peripheral Cntlr RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| USB97C210 | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB 2.0 FLASH MEDIA CONTROLLER |
| USB97C210-NC | 制造商:SMSC 制造商全稱:SMSC 功能描述:USB 2.0 FLASH MEDIA CONTROLLER |
| USB97C210-NE | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述: |
| USB97C210-NE WAF | 制造商:SMSC 功能描述: |
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