UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 203

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.6.6 CPU clock status transition diagram
Figure 5-18. CPU Clock Status Transition Diagram (When LVI Default Start Mode Function Stopped Is Set
Figure 5-18 and 5-19 shows the CPU clock status transition diagram of this product.
Remark When LVI default start function enabled is set (option byte: LVISTART = 1), the CPU clock status
changes to (A) in the above figure when the supply voltage exceeds 1.91 V (TYP.), and to (B) after reset
processing.
(Option Byte: LVISTART = 0), 78K0/KY2-L, 78K0/KA2-L, and 78K0/KB2-L)
Internal low-speed oscillation: Operable
Internal high-speed oscillation: Operating
X1 oscillation/EXCLK input:
Selectable by CPU
(F)
Internal low-speed oscillation: Operable
Internal high-speed oscillation:
Selectable by CPU
X1 oscillation/EXCLK input: Operating
oscillation/EXCLK
input
CPU: X1
HALT
Internal low-speed oscillation:
Operable
Internal high-speed oscillation:
Operable
X1 oscillation/EXCLK input: Operating
Preliminary User’s Manual U19111EJ2V1UD
CHAPTER 5 CLOCK GENERATOR
(A)
(B)
with X1 oscillation or
Reset release
with internal high-
speed oscillation
(C)
CPU: Operating
CPU: Operating
Power ON
EXCLK input
Internal low-speed oscillation: Woken up
Internal high-speed oscillation: Woken up
X1 oscillation/EXCLK input: Stops (input port mode)
Internal low-speed oscillation: Operating
Internal high-speed oscillation: Operating
X1 oscillation/EXCLK input: Stops (input port mode)
(H)
(E)
(I)
CPU: Internal high-
oscillation/EXCLK
CPU: Internal high-
speed oscillation
speed oscillation
input
CPU: X1
STOP
HALT
V
V
V
STOP
DD
DD
DD
< 1.61 V (TYP.)
1.61 V (TYP.)
1.8 V (MIN.)
Internal low-speed oscillation:
Operable
Internal high-speed oscillation:
Stops
X1 oscillation/EXCLK input: Stops
Internal low-speed oscillation:
Operable
Internal high-speed oscillation:
Operating
X1 oscillation/EXCLK input: Operable
Internal low-speed oscillation:
Operable
Internal high-speed oscillation:
Stops
X1 oscillation/EXCLK input: Stops
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