DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 580

• Manufacturer Part Number: DF2211NP24V
• Description: H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
• Manufacturer: Renesas Technology / Hitachi Semiconductor

Rev.7.00 Dec. 24, 2008 Page 526 of 698
REJ09B0074-0700
VCC
Pull-up control
external circuit
for full speed
Notes:
3.
1.
2.
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.
P36
Figure 14.27 USB External Circuit in Self-Powered Mode
*
VCC
1
(3.3 V) IRQx
USB
VCC
1.5 kΩ
*
2
VBUS
*
3
DrVCC
(3.3 V)
VBUS
USD+ USD-
(5 V)
Internal transceiver
*
1
USB connector
D+
24 Ω
D-
24 Ω
DrVSS
GND
VSS
VCC
UBPM
1: Self-powered mode