R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 432
R5F21238DFP#U0
Manufacturer Part Number
R5F21238DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21238DFP#U0
Core Size
16/32-Bit
Program Memory Size
64KB (64K x 8)
Peripherals
POR, Voltage Detect, WDT
Core Processor
R8C
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Number Of I /o
41
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
No. Of I/o's
41
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Embedded Interface Type
CAN, I2C, UART
Rohs Compliant
Yes
Cpu Family
R8C
Device Core Size
16b
Frequency (max)
20MHz
Interface Type
I2C/UART
Total Internal Ram Size
3KB
# I/os (max)
41
Number Of Timers - General Purpose
5
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
On-chip Adc
12-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
48
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
19.4
Figure 19.9
Figure 19.9 shows the A/D Conversion Cycles.
Without Sample & Hold
Without Sample & Hold
With Sample & Hold
With Sample & Hold
A/D Conversion Cycles
A/D Conversion Mode
A/D Conversion Cycles
Page 410 of 501
10 bits
10 bits
8 bits
8 bits
Conversion
49φAD
59φAD
28φAD
33φAD
Time
Conversion time at the 1st bit
Sampling
4φAD
4φAD
4φAD
4φAD
Time
Comparison
2.0φAD
2.0φAD
2.5φAD
2.5φAD
Time
Conversion time at the 2nd
Sampling
0.0φAD
0.0φAD
2.5φAD
2.5φAD
Time
bit and the follows
Comparison
2.5φAD
2.5φAD
2.5φAD
2.5φAD
Time
19. A/D Converter
End process
End process
8.0φAD
8.0φAD
4.0φAD
4.0φAD
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