DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 549

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 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: HD64F2345TE20; HD64F2345TE20

14.5
The A/D converter generates an A/D conversion end interrupt (ADI) at the end of A/D conversion.
ADI interrupt requests can be enabled or disabled by means of the ADIE bit in ADCSR.
The DTC can be activated by an ADI interrupt. Having the converted data read by the DTC in
response to an ADI interrupt enables continuous conversion to be achieved without imposing a
load on software.
The A/D converter interrupt source is shown in table 14.5.
Table 14.5 A/D Converter Interrupt Source
14.6
The following points should be noted when using the A/D converter.
Setting Range of Analog Power Supply and Other Pins:
(1) Analog input voltage range
(2) Relation between AV
(3) V
If conditions (1), (2), and (3) above are not met, the reliability of the device may be adversely
affected.
Notes on Board Design: In board design, digital circuitry and analog circuitry should be as
mutually isolated as possible, and layout in which digital circuit signal lines and analog circuit
signal lines cross or are in close proximity should be avoided as far as possible. Failure to do so
may result in incorrect operation of the analog circuitry due to inductance, adversely affecting A/D
conversion values.
Interrupt Source
ADI
The voltage applied to analog input pins AN0 to AN7 during A/D conversion should be in the
range AV
As the relationship between AV
A/D converter is not used, the AV
The analog reference voltage input at the V
ref
input range
Interrupts
Usage Notes
SS
ANn
Description
Interrupt due to end of conversion
CC
V
, AV
ref
.
SS
and V
CC
, AV
CC
CC
and AV
, V
SS
and V
SS
ref
SS
pin set in the range V
pins must on no account be left open.
CC
, V
SS
, set, AV
Rev. 4.00 Feb 15, 2006 page 523 of 900
CC
= V
DTC Activation
Possible
ref
CC
Section 14 A/D Converter
and AV
AV
CC
.
REJ09B0291-0400
SS
= V
SS
. If the