參數(shù)資料
型號: SL811S
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: 總線控制器
英文描述: USB Dual Speed Slave Controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 18/27頁
文件大小: 181K
代理商: SL811S
SL811S/T
Document #: 38-08009 Rev. **
Page 18 of 27
6.5
SL811ST 48-Pin LPQFP Mechanical Dimensions
6.6
The SL811ST is packaged in a 48-Pin LPQFP. The device requires 3.3VDC or +5VDC (VDD1) and a +3.3 VDC (VDD2) power
supply. Average typical current consumption is less than 22 mA for 3.3 V. The SL811ST requires an external 48-MHz Crystal or
Clock.
SL811ST USB Controller, Pin Descriptions
Pin No.
Pin Type
Pin Name
Pin Description
1
NC
NC
NC
2
NC
NC
NC
3
IN
nWR
Write Strobe Input. An active low input used with nCS to write to registers/data
memory.
4
IN
nCS
Active low SL811ST Chip select. Used with nRD and nWR when accessing
SL811ST.
5
IN
CM
Clock Mode. Enables DPLL 4x Multiplier when
1
. For use with 12-MHz Clock.
Tie to gnd for 48-MHz.
6
VDD2
3.3 VDC
Power for USB Transceivers. VDD2 may be derived from VDD1.
Note 4
7
BIDIR
DATA+
USB Differential Data Signal High Side.
8
BIDIR
DATA
USB Differential Data Signal Low Side.
9
GND
USB GND
Ground Connection for USB.
10
NC
NC
NC
11
NC
NC
NC
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