R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 26
![MCU FLASH 96K 5K CMOS 48-LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
R5F2121AJFP#U0
Manufacturer Part Number
R5F2121AJFP#U0
Description
MCU FLASH 96K 5K CMOS 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/21r
Datasheet
1.R5F21216JFP.pdf
(503 pages)
Specifications of R5F2121AJFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
96KB (96K x 8)
Program Memory Type
FLASH
Ram Size
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 ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ09B0250-0200
1.6
Table 1.5
I: Input
Power Supply Input
Analog Power Supply
Input
Reset Input
MODE
XIN Clock Input
XIN Clock Output
INT Interrupt Input
Key Input Interrupt
Timer RA
Timer RB
Timer RD
Timer RE
Serial Interface
I
Clock Synchronous
Serial I/O with Chip
Select
Reference Voltage Input VREF
A/D Converter
I/O Port
Input Port
2
Table 1.5 lists the Pin Functions and Table 1.6 lists the Pin Name Information by Pin Number.
C Bus Interface
Pin Functions
Type
O: Output
Pin Functions
Page 8 of 458
CLK0
VCC
VSS
AVCC, AVSS
RESET
MODE
XIN
XOUT
INT0 to INT3
KI0 to KI3
TRAIO
TRAO
TRBO
TRDIOA0, TRDIOA1,
TRDIOB0, TRDIOB1,
TRDIOC0, TRDIOC1,
TRDIOD0, TRDIOD1
TRDCLK
TREO
RXD0, RXD1
TXD0, TXD1
SCL
SDA
SSI
SCS
SSCK
SSO
AN0 to AN11
P0_0 to P0_7,
P1_0 to P1_7,
P2_0 to P2_7,
P3_0, P3_1,
P3_3 to P3_5, P3_7,
P4_3 to P4_5,
P6_0 to P6_7
P4_2, P4_6, P4_7
I/O: Input and output
Symbol
I/O Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
Apply 2.7 V to 5.5 V to the VCC pin. Apply 0 V to the
VSS pin.
Applies the power supply for the A/D converter. Connect
a capacitor between AVCC and AVSS.
Input “L” on this pin resets the MCU.
Connect this pin to VCC via a resistor.
These pins are provided for the XIN clock generation
circuit I/O. Connect a ceramic resonator or a crystal
oscillator between the XIN and XOUT pins. To use an
externally derived clock, input it to the XIN pin and leave
the XOUT pin open.
INT interrupt input pins.
INT0 Timer RD input pins.
INT1 Timer RA input pins.
Key input interrupt input pins.
Timer RA I/O pin.
Timer RA output pin.
Timer RB output pin.
Timer RD I/O ports.
External clock input pin.
Divided clock output pin.
Transfer clock I/O pin.
Serial data input pins.
Serial data output pins.
Clock I/O pin.
Data I/O pin.
Data I/O pin.
Chip-select signal I/O pin.
Clock I/O pin.
Data I/O pin.
Reference voltage input pin to A/D converter.
Analog input pins to A/D converter.
CMOS I/O ports. Each port contains an input/output
select direction register, allowing each pin in that port to
be directed for input or output individually.
Any port set to input can select whether to use a pull-up
resistor or not by a program.
Input only ports.
Description
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