UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 705

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

<R>
78K0/Kx2-L
23.1 Regulator Overview
to stabilize the regulator output voltage, connect the REGC pin to V
the STOP mode that has been entered since operation of the internal high-speed oscillation clock and external main
system clock, 0.47
internal voltage.
23.2 Register Controlling Regulator
(1) Regulator mode control register (RMC)
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Address: FF3DH
The 78K0/Kx2-L microcontrollers contain a circuit for operating the device with a constant voltage. At this time, in order
The regulator output voltage is normally 2.4 V (TYP.), and in the low power consumption mode, 2.0 V (TYP.).
Symbol
RMC
Cautions 1. To change the RMC register setting value from 56H to 00H and use a CPU operating
This register sets the output voltage of the regulator.
RMC is set with an 8-bit memory manipulation instruction.
Reset input sets this register to 00H.
Other than
RMC[7:0]
above
56H
00H
2. When transitioning to the STOP mode, sub-system clock operation mode, and sub-system
3. When using the setting fixed to the low power consumption mode, the RMC register can be
After reset: 00H
7
μ
frequency of 5 MHz or more, change the PCC and RCM registers when 10
elapsed after the RMC register was set.
clock HALT mode, it is possible to achieve low power consumption by setting RMC = 56H.
used in the following cases.
<When the high-speed internal oscillation clock, external input clock, or subsystem clock are
selected for the CPU clock>
F is recommended. Also, use a capacitor with good characteristics, since it is used to stabilize
<When X1 clock is selected as the CPU clock>
Low power consumption mode (fixed to 2.0 V)
Normal power mode (fixed to 2.4 V)
Setting prohibited
Figure 23-1. Format of Regulator Mode Control Register (RMC)
6
R/W
CHAPTER 23 REGULATOR
5
Control of output voltage of regulator
4
SS
via a capacitor (0.47 to 1
3
f
f
X
CPU
≤ 5 MHz and f
2
≤ 5 MHz
CHAPTER 23 REGULATOR
μ
F). However, when using
1
CPU
≤ 5 MHz
μ
s or more has
0
691