R5F21257SDFP#U0 Renesas Electronics America, R5F21257SDFP#U0 Datasheet - Page 56

• Manufacturer Part Number: R5F21257SDFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SDFP#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: -40°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: -

Rev.
0.30
REVISION HISTORY
Sep 01, 2005
Date
Page
15
16
17
18
7
8
9
Figure 1.4 Pin Assignment
• Pin name revised;
• NOTE2 added
Table 1.5 Pin Description
• Analog Power Supply Input: line added
• INT Interrupt Input: “INT0 Timer RD input pins. INT1 Timer RA input
• Serial Interface: “CLK1” added
• “I
• “SSU” → “Clock Synchronous Serial I/O with Chip Select”
Table 1.6 Pin Name Information by Pin Number revised
• Pin Number 10: “VSS” → “VSS/AVSS”
• Pin Number 12: “VCC” → “VCC/AVCC”
• Pin Number 27: “INT0” added
• Pin Number 28: “(TXD1)” → “TXD1”
• Pin Number 29: “(RXD1)” → “RXD1”
• Pin Number 35: “CLK1” added
Tabel 4.1 SFR Information(1) revised:
• 0012h: X0h → 00h
• 0013h: XXXXXX00b → 00h
• 0016h: X0h → 00h
• 0036h: Voltage Monitor 1 Control Register
• 0038h: 00001000b
• NOTES2, 5: “the voltage monitor 1 reset” added
• NOTE3: “voltage monitor 1 reset” → “voltage monitor 0 reset”
Tabel 4.2 SFR Information(2) revised:
• 0048h: RD0IC → TRD0IC
• 0049h: RD1IC → TRD1IC
• 004Ah: REIC → TREIC
• 004Fh: SSU/IIC Interrupt Control Register, IIC2AIC →
• 0056h: RAIC → TRAIC
• 0058h: RBIC → TRBIC
• NOTE2 added
Tabel 4.3 SFR Information(3) revised:
• 00BCh: 00h → 00h/0000X000b
Tabel 4.4 SFR Information(4) revised:
• 00D6h: 00000XXXb → 00h
• 00F5h: UART1 Function Select Register, U1SR, XXh added
pins.” added
VSS → VSS/AVSS,
VCC → VCC/AVCC,
P1_5/RXD0/(TRAIO)/(INT1) → P1_5/RXD0/(TRAIO)/(INT1)
P6_6/INT2/(TXD1) → P6_6/INT2/TXD1,
P6_7/INT3/(RXD1) → P6_7/INT3/RXD1,
P6_5 → P6_5/CLK1
2
C Bus Interface (IIC)” → “I
Control Register
SSU/IIC Interrupt Control Register
R8C/24 Group, R8C/25 Group Datasheet
A - 3
(3)
, 01000001b
Description
(5)
2
Summary
C Bus Interface”
(4)
→ 0000X000b
(2)
(2)
, SSUAIC/IIC2AIC
→ Voltage Monitor 1
(3)
, 0100X001b
(2)
,
(4)