HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 724

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 20 Clock Pulse Generator
(2) Handling pins when subclock not required
If no subclock is required, connect the OSC1 pin to Vcc and leave OSC2 open, as shown in figure
20.10.
V
CC
OSC1
Open
OSC2
Figure 20.10 Pin Handling When Subclock Not Required
20.8
Subclock Waveform Shaping Circuit (H8S/2626 Group Only)
To eliminate noise from the subclock input to OSC1, the subclock is sampled using the dividing
clock . The sampling frequency is set using the NESEL bit of LPWRCR. For details, see section
21B.2.3, Low Power Control Register (LPWRCR).
No sampling is performed in sub-active mode, sub-sleep mode, or watch mode.
20.9
Note on Crystal Resonator
Since various characteristics related to the crystal resonator are closely linked to the user’s board
design, thorough evaluation is necessary on the user’s part, for both the mask versions and
F-ZTAT versions, using the resonator connection examples shown in this section as a guide. As
the resonator circuit ratings will depend on the floating capacitance of the resonator and the
mounting circuit, the ratings should be determined in consultation with the resonator
manufacturer. The design must ensure that a voltage exceeding the maximum rating is not applied
to the oscillator pin.
Rev. 5.00 Jan 10, 2006 page 698 of 1042
REJ09B0275-0500