HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 963
HD64F2638F20J
Manufacturer Part Number
HD64F2638F20J
Description
IC H8S MCU FLASH 256K 128-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2638F20J
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SmartCard
Peripherals
Motor Control PWM, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Handling Pins when Subclock not Required: If no subclock is required, connect the OSC1 pin
to VSS and leave OSC2 open, as shown in figure 22A-10.
22A.8 Subclock Waveform Generation Circuit
To eliminate noise from the subclock input to OSCI, the subclock is sampled using the dividing
clock φ. The sampling frequency is set using the NESEL bit of LPWRCR. For details, see section
23A.2.3, 23B.2.3, Low Power Control Register (LPWRCR).
No sampling is performed in subactive mode * , subsleep mode * , or watch mode * .
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
22A.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.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
U-mask and W-mask versions only.
These functions cannot be used with the other versions.
Figure 22A-10 Pin Handling when Subclock not Required
OSC2
OSC1
(H8S/2636 Group, H8S/2638 Group, H8S/2630 Group)
Open
Section 22A Clock Pulse Generator
Page 913 of 1458
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