UPD78F1144AGB-GAH-AX Renesas Electronics America, UPD78F1144AGB-GAH-AX Datasheet - Page 627

• Manufacturer Part Number: UPD78F1144AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1144AGB-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: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: -

19.2 Configuration of Power-on-Clear Circuit
19.3 Operation of Power-on-Clear Circuit
below.
The block diagram of the power-on-clear circuit is shown in Figure 19-1.
• An internal reset signal is generated on power application.
• The supply voltage (V
The timing of generation of the internal reset signal by the power-on-clear circuit and low-voltage detector is shown
detection voltage (V
Caution If the low-voltage detector (LVI) is set to ON by an option byte by default, the reset signal is not
internal reset signal is generated.
released until the supply voltage (V
V
DD
POC
DD
= 1.59 V ±0.09 V), the reset status is released.
Figure 19-1. Block Diagram of Power-on-Clear Circuit
) and detection voltage (V
Reference
voltage
source
CHAPTER 19 POWER-ON-CLEAR CIRCUIT
User’s Manual U17854EJ9V0UD
+
−
V
DD
DD
) exceeds 2.07 V ±0.2 V.
POC
= 1.59 V ±0.09 V) are compared. When V
When the supply voltage (V
Internal reset signal
DD
) exceeds the
DD
< V
POC
, the
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