R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 56

MCU 1KB FLASH 16K ROM 20-LSSOP

R5F21324CNSP#U0

Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet

Specifications of R5F21324CNSP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 27 of 573
Table 5.2 shows the Pin Functions while RESET Pin Level is “L”, Figure 5.2 shows the CPU Register Status after
Reset, Figure 5.3 shows the Reset Sequence.
Figure 5.2
Figure 5.3
Table 5.2
Internal reset
signal
P1, P3_3 to P3_5, P3_7
P4_2, P4_5 to P4_7
CPU clock
Address
(internal address
signal)
RESET pin
fOCO-S
Notes:
1. Hardware reset.
2. When the “L” input width to the RESET pin is set to fOCO-S clock × 32 cycles or more, setting the RESET pin to “H” also sets the internal
reset signal to “H” at the same time.
Pin Name
CPU Register Status after Reset
Reset Sequence
Pin Functions while RESET Pin Level is “L”
10 µs or more are needed
b15
fOCO-S clock × 32 cycles
IPL
b19
Content of addresses 0FFFEh to 0FFFCh
Start time of flash memory
(CPU clock × 148 cycles)
b15
b15
b15
(1)
Input port
Input port
b8
(2)
00000h
U
b7
I
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
O
Pin Function
CPU clock × 28 cycles
B
S
Z
D
C
b0
b0
b0
b0
b0
0FFFCh
Interrupt table register (INTB)
Program counter (PC)
User stack pointer (USP)
Interrupt stack pointer (ISP)
Static base register (SB)
Flag register (FLG)
Data register (R0)
Data register (R1)
Data register (R2)
Data register (R3)
Address register (A0)
Address register (A1)
Frame base register (FB)
0FFFDh
0FFFEh
Content of reset vector
5. Resets

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