DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 780
![IC H8S MCU FLASH 128K 100-QFP](/photos/28/61/286108/100-tqfp_sml.jpg)
DF2148ATE20
Manufacturer Part Number
DF2148ATE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148ATE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148ATE20
HD64F2148ATE20
HD64F2148ATE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 24 Clock Pulse Generator
24.3
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock.
24.3.1
Circuit Configuration
A crystal resonator can be connected as shown in the example in figure 24.2. Select the damping
resistance R
Table 24.2 Damping Resistance Value
Frequency (MHz)
R
Crystal resonator
Figure 24.3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has
the characteristics shown in table 24.3 and the same frequency as the system clock ( ).
Rev. 4.00 Sep 27, 2006 page 734 of 1130
REJ09B0327-0400
d
( )
Oscillator
Connecting a Crystal Resonator
d
according to table 24.2. An AT-cut parallel-resonance crystal should be used.
Figure 24.2 Connection of Crystal Resonator (Example)
XTAL
EXTAL
XTAL
2
1k
Figure 24.3 Crystal Resonator Equivalent Circuit
4
500
R
d
L
C
C
C
C
8
200
L
0
L1
L2
AT-cut parallel-resonance type
R
s
10
0
C
L1
= C
EXTAL
12
0
L2
= 10 to 22 pF
16
0
20
0
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