R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 44

IC R8C/25 MCU FLASH 52LQFP

R5F21257SNFP#U0

Manufacturer Part Number
R5F21257SNFP#U0
Description
IC R8C/25 MCU FLASH 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Datasheets

Specifications of R5F21257SNFP#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
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
52-LQFP
For Use With
R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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Quantity:
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Manufacturer:
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Quantity:
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Company:
Part Number:
R5F21257SNFP#U0R5F21257SNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ03B0117-0300
Figure 5.10
Figure 5.11
INTi input
CLKi
TXDi
RXDi
Table 5.20
i = 0 or 1
Table 5.21
NOTES:
t
t
t
t
t
t
t
t
t
c(CK)
W(CKH)
W(CKL)
d(C-Q)
h(C-Q)
su(D-C)
h(C-D)
W(INH)
W(INL)
Symbol
Symbol
1. When selecting the digital filter by the INTi input filter select bit, use an INTi input HIGH width of either (1/digital filter clock
2. When selecting the digital filter by the INTi input filter select bit, use an INTi input LOW width of either (1/digital filter clock
frequency × 3) or the minimum value of standard, whichever is greater.
frequency × 3) or the minimum value of standard, whichever is greater.
Feb 29, 2008
CLKi input cycle time
CLKi input “H” width
CLKi input “L” width
TXDi output delay time
TXDi hold time
RXDi input setup time
RXDi input hold time
INT0 input “H” width
INT0 input “L” width
Serial Interface
Serial Interface Timing Diagram when V
External Interrupt INTi (i = 0 to 3) Input
External Interrupt INTi Input Timing Diagram when V
i = 0 to 3
i = 0 or 1
Page 42 of 51
t
t
W(CKH)
W(INL)
Parameter
Parameter
t
d(C-Q)
t
C(CK)
t
t
W(INH)
W(CKL)
CC
= 5 V
t
su(D-C)
CC
= 5 V
t
h(C-D)
250
250
Min.
Min.
200
100
100
50
90
5. Electrical Characteristics
0
(1)
(2)
Standard
Standard
t
h(C-Q)
Max.
Max.
50
V
V
CC
CC
= 5 V
= 5 V
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns

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