R5F21237KFP#U0 Renesas Electronics America, R5F21237KFP#U0 Datasheet - Page 431
R5F21237KFP#U0
Manufacturer Part Number
R5F21237KFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21237KFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
16MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21237KFP#U0R5F21237KFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
19.3
Figure 19.8
When the SMP bit in the ADCON2 register is set to 1 (with sample and hold function), A/D conversion rate per pin
increases. The sample and hold function is available in all operating modes. Start the A/D conversion after
selecting whether the sample and hold circuit is to be used or not.
Figure 19.8 shows the Timing Diagram of A/D Conversion.
Sample & hold
Sample & hold
Sample and Hold
disabled
enabled
Timing Diagram of A/D Conversion
Page 409 of 501
Conversion time at the 1st bit
Sampling time
Conversion time at the 1st bit
Sampling time
4ø AD cycle
4ø AD cycle
Comparison
Comparison
time
time
at the 2nd bit
Sampling time
2.5ø AD cycle
Comparison
time
at the 2nd bit
* Repeat until conversion ends
Comparison
Comparison
time
time
* Repeat until conversion ends
Sampling time
2.5ø AD cycle
Comparison
time
Comparison
time
19. A/D Converter
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