UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 179

• 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: -

(3) Setting of operation mode for subsystem clock pin
Notes 1.
Caution
Remark
The operation mode for the subsystem clock pin
control register (PCC) and bits 5 and 4 (EXCLKS, OSCSELS) of the clock operation mode select register
(OSCCTL) in combination.
Note
f
f
f
f
f
f
XP
XP
XP
XP
XP
SUB
XTSTART
CPU Clock (f
/2
/2
/2
/2
/2
PCC
Bit 6
2
3
4
Note 2
0
0
0
0
1
2.
78K0/KC2-L only
Table 5-2. Relationship between CPU Clock and Minimum Instruction Execution Time
The main clock mode register (MCM) is used to set the main system clock supplied to CPU clock
(high-speed system clock/internal high-speed oscillation clock) (refer to Figure 5-6).
78K0/KC2-L only
Confirm that bit 5 (CLS) of the processor clock control register (PCC) is 0 (CPU is operating
with main system clock) when changing the current values of XTSTART, EXCLKS, and
OSCSELS.
: don’t care
Table 5-3. Setting of Operation Mode for Subsystem Clock Pin (78K0/KC2-L)
EXCLKS
CPU
Bit 5
)
0
0
1
1
OSCCTL
0.2 s
0.4 s
0.8 s
1.6 s
3.2 s
High-Speed System
At 10 MHz Operation
OSCSELS
Clock
Bit 4
0
1
0
1
Note 1
Preliminary User’s Manual U19111EJ2V1UD
CHAPTER 5 CLOCK GENERATOR
Input port mode
XT1 oscillation mode
Input port mode
External clock input mode
XT1 oscillation mode
Subsystem Clock Pin
Operation Mode
0.25 s (TYP.)
0.5 s (TYP.)
1.0 s (TYP.)
2.0 s (TYP.)
4.0 s (TYP.)
Main System Clock
Internal High-Speed Oscillation Clock
At 8 MHz (TYP.)
Minimum Instruction Execution Time: 2/f
Operation
Note
can be set by using bit 6 (XTSTART) of the processor clock
0.5 s (TYP.)
1.0 s (TYP.)
2.0 s (TYP.)
4.0 s (TYP.)
8.0 s (TYP.)
Input port
Crystal resonator connection
Input port
Input port
Crystal resonator connection
At 4 MHz (TYP.)
Operation
P123/XT1 Pin
Note 1
CPU
122.1 s
At 32.768 kHz Operation
Subsystem Clock
External clock input
P124/XT2/EXCLKS
Pin
Note 2
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