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H8S/2218 数据表(PDF) 574 Page - Renesas Technology Corp

部件名 H8S/2218
功能描述  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  750 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2218 数据表(HTML) 574 Page - Renesas Technology Corp

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Section 14 Universal Serial Bus (USB)
Rev.6.00 Jun. 03, 2008 Page 526 of 698
REJ09B0074-0600
1: Self-powered mode
Internal transceiver
P36
1.5 k
Ω
DrVCC
(3.3 V)
VBUS
(5 V)
USD+
USD-
D+
D-
24
Ω
24
Ω
DrVSS
GND
UBPM
VBUS
VCC
(3.3 V)
IRQx
VCC
VCC
VSS
USB connector
*1
*2
*3
USB
To protect the LSI, voltage applicable IC such as HD74LV-A series must be used
even when the system power is turned off.
To cancel power-down mode by detecting the USB cable connection, theVBUS
signal must be connected to the
IRQx pin. Note that power-down mode
state cannot be canceled by the USB interrupt
EXIRQx.
Prevent the VBUS pin from being affected by noise while USB is in communication.
Pull-up control
external circuit
for full speed
1.
2.
3.
Notes:
VCC
*1
Figure 14.27 USB External Circuit in Self-Powered Mode



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