R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 523
![IC R8C/25 MCU FLASH 52LQFP](/photos/12/37/123739/r5f21257snfp_u0_sml.jpg)
R5F21257SNFP#U0
Manufacturer Part Number
R5F21257SNFP#U0
Description
IC R8C/25 MCU FLASH 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
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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Part Number
Manufacturer
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Price
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Rev.
3.00
REVISION HISTORY
Feb 29, 2008
Date
167 to 170 14.2.5 revised
197, 214 Table 14.25, Table 14.27;
198, 215 Figure 14.47, Figure 14.63; “TRDSTR register” revised
227, 251 Table 14.29, Table 14.33;
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Figure 14.20 “... When write, ...” → “... If necessary, ...”
Table 14.9 NOTE2 added
“...0 (one-shot stops).” → “...1 (one-shot stops).”
“TRBP pin function” → “TRBO pin function”
Table 14.10 NOTE2 added
14.2.5.1, 14.2.5.2, 14.2.5.3, 14.2.5.4 added
Figure 14.50 “TRDOER1 register” revised
Figure 14.55 revised
Figure 14.59 “of counter clear” deleted
Figure 14.61 revised
Table 14.27 revised
Figure 14.68 revised
Figure 14.76 revised
Figure 14.80 revised
Figure 14.86 revised
Figure 14.87 revised
Figure 14.91 revised
Figure 14.98 “TRDSTR register” revised
Figure 14.103 revised
Figure 14.107 revised
14.3.12.1, Table 14.36; “after the count is cleared” deleted
Figure 14.121 “00” → “00b”
Figure 14.130 revised
Figure 15.4 “UARTi Transmit/Receive Mode Register” NOTE2 deleted
Figure 15.6 “(b7-b4)” → “(b7-b6)”
Table 15.5 NOTE2 added
Table 15.7 revised
15.3 revised
Figure 16.2 NOTE4 deleted
Figure 16.3 revised, NOTE4 deleted
Figure 16.4 NOTE2 deleted
Figure 16.5 NOTE1 deleted
Figure 16.6 NOTE2, NOTE7 revised
Figure 16.7 NOTE5 revised
R8C/24 Group, R8C/25 Group Hardware Manual
“at the same time as the TRDi register ... 0000h” deleted
“at the same time as the TRD0 register ... 0000h” deleted
C - 19
Description
Summary
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