UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 305

• 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: -

7.5 Cautions for 8-Bit Timer/Event Counters 50 and 51
(1) Timer start error
(2) Reading of 8-bit timer counter 5n (TM5n)
Remark 78K0/KY2-L, 78K0/KA2-L: n = 1
TM5n count value
An error of up to one clock may occur in the time required for a match signal to be generated after timer start.
This is because 8-bit timer counters 50 and 51 (TM50, TM51) are started asynchronously to the count clock.
TM5n can be read without stopping the actual counter, because the count values captured to the buffer are fixed
when it is read. The buffer, however, may not be updated when it is read immediately before the counter counts
up, because the buffer is updated at the timing the counter counts up.
Count clock
Read buffer
Read signal
78K0/KB2-L, 78K0/KC2-L: n = 0, 1
TM5n count value
Count clock
Figure 7-18. 8-bit Timer Counter 5n (TM5n) Read Timing
Figure 7-17. 8-Bit Timer Counter 5n (TM5n) Start Timing
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
34H
34H
Preliminary User’s Manual U19111EJ2V1UD
35H
00H
Timer start
35H
36H
01H
37H
37H
02H
38H
03H
38H
39H
04H
3AH
3BH
3BH
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