UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 136

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

4.4.4 Connecting to external device with different power potential (2.5 V, 3 V)
2.5 V or 3 V power supply voltage are possible.
open drain (V
(1) Setting procedure when using I/O pins of UART1 and CSI10 functions
134
When parts of ports 0 operate with V
Regarding inputs, CMOS/TTL switching is possible on a bit-by-bit basis by port input mode registers (PIM0).
Moreover, regarding outputs, different power potentials can be supported by switching the output buffer to the N-ch
(a) Use as 2.5 V or 3 V input port
(b) Use as 2.5 V or 3 V output port
<1> After reset release, the port mode is the input mode (Hi-Z).
<2> If pull-up is needed, externally pull up the pin to be used (on-chip pull-up resistor cannot be used).
<3> Set the corresponding bit of the PIM0 register to 1 to switch to the TTL input buffer.
<4> V
<1> After reset release, the port mode changes to the input mode (Hi-Z).
<2> Pull up externally the pin to be used (on-chip pull-up resistor cannot be used).
<3> Set the output latch of the corresponding port to 1.
<4> Set the corresponding bit of the POM0 register to 1 to set the N-ch open drain output (V
<5> Set the output mode by manipulating the PM0 register.
<6> Operation is done only in the low level according to the operating status of the serial array unit.
DD
withstand voltage) by the port output mode registers (POM0).
At this time, the output data is high level, so the pin is in the Hi-Z state.
voltage) mode.
IH
/V
IL
In case of UART1:
In case of CSI10:
In case of UART1:
In case of CSI10:
operates on 2.5 V or 3 V operating voltage.
DD
= 4.0 V to 5.5 V, I/O connections with an external device that operates on a
CHAPTER 4 PORT FUNCTIONS
P03
P03, P04
P02
P02, P04
User’s Manual U17854EJ9V0UD
DD
withstand