R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 1045

• Manufacturer Part Number: R4F24568NVFQV
• Description: MCU 128KKB FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24568NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

H8S/2456, H8S/2456R, H8S/2454 Group
16.9
1. USB Transceiver
2. D+ Pull-Up Control
3. Detection of USB Cable Connection/Disconnection
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
This module supports the on-chip transceiver only, not the external transceiver.
The general output port (P20) is used for D+ pull-up control pin. The P20 pin is driven high by
the PULLUP_E bit of CTLR when the USB cable VBUS is connected.
Thus, USB host/hub connection notification (D+ pill-up) is enabled.
As USB states, etc., are managed by hardware in this module, a VBUS signal that recognizes
connection/disconnection is necessary. The power supply signal (VBUS) in the USB cable is
used for this purpose. However, if the cable is connected to the USB host/hub when the
function (system installing this LSI) power is off, a voltage (5 V) will be applied from the USB
host/hub. Therefore, an IC (such as an HD74LV1G08A or 2G08A) that allows voltage
application when the system power is off should be connected externally.
Vcc
External pull-up
control circuit
supporting full-speed
Example of USB External Circuitry
Notes:
P20
USB
Vcc
*
1.
2.
3.
2
Figure 16.23 Example of Circuitry in Bus Power Mode
Reduce voltage to the operating voltage of this LSI (3.3 V).
To protect this LSI from being damaged, use the IC (such as HD74LV-A Series) which can
be applied voltage even when the system power is turned off.
Prevent noise from the VBUS pin while the USB is performing communication.
PULLUP_E
(3.3 V)
Vcc
1.5 kΩ
VBUS*
3
Regulator*
DrVCC
(3.3 V)
Vcc
(3.3 V)
VBUS
(5 V)
1
USD+
On-chip transceiver
D+
USB connector
USD-
D-
DrVSS
Section 16 USB Function Module (USB)
GND
Vss
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