R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 111

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• 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 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 81 of 589
7.4.20
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 01F5h
The VLT0 register selects the voltage level of the input threshold values for ports P0, P1, P2_0 to P2_2, P3_1,
P3_3 to P3_5, P3_7. Bits VLT00 to VLT07 are used to select the input threshold values among three voltage
levels (0.35 VCC, 0.50 VCC, and 0.70 VCC).
Symbol
Symbol
VLT00
VLT01
VLT02
VLT03
VLT04
VLT05
VLT06
VLT07
Bit
Input Threshold Control Register 0 (VLT0)
VLT07
b7
0
P0 input level select bit
P1 input level select bit
P2_0 to P2_2 input level select bit
P3_1, P3_3 to P3_5, P3_7 input level
select bit
VLT06
b6
0
Bit Name
VLT05
b5
0
VLT04
b4
0
b1 b0
b3 b2
b5 b4
b7 b6
VLT03
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b3
0
VLT02
b2
0
Function
VLT01
b1
0
VLT00
b0
0
7. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W