UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 239

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

8.5 Cautions for 8-Bit Timer/Event Counters 50 and 51
(1) Timer start error
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.
Remark n = 0, 1
TM5n count value
Count clock
CHAPTER 8 8-BIT TIMER/EVENT COUNTERS 50 AND 51
Figure 8-16. 8-Bit Timer Counter 5n Start Timing
00H
Timer start
User’s Manual U17554EJ4V0UD
01H
02H
03H
04H
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