UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 143
![8BIT MCU, 128K FLASH, 7K RAM, LQFP](/photos/19/1/190186/ge64lqfp05-40_sml.jpg)
UPD78F0890GK(A)-GAJ-AX
Manufacturer Part Number
UPD78F0890GK(A)-GAJ-AX
Description
8BIT MCU, 128K FLASH, 7K RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0890GKA-GAJ-AX.pdf
(732 pages)
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
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Cautions 1.
remark
2.
The clock which is not used as a CPU clock can be suspended by setup of software during
microcomputer operation. Moreover, high-speed oscillation clock and a high-speed system clock can
suspend a clock by execution of a STOP command (see (4) in 6.6.1 Controlling high-speed system
clock, (3) in 6.6.2 Example of controlling internal high-speed oscillation clock, and (4) in 6.6.3
Example of controlling subsystem clock).
When the standup of voltage until it reaches 1.8 V from the time of a power supply injection is
looser than 0.5 V/ms (MAX.), input a low level into RESET pin, or set up 2.7 V/1.59 V POC
mode (LVISTART = 1) from an option byte until it reaches 1.8 V from the time of a power
supply injection (refer to Figure 6-13). When a low level is inputted into RESET pin until it
reaches 1.8 V, after the reset release by RESET pin operates to the same timing as <2> of
Figure 6-12 or subsequent ones.
When using the external clock input from EXCLK pin and EXCLKS pin, oscillation stable
waiting time is unnecessary.
CHAPTER 6 CLOCK GENERATOR
User’s Manual U17554EJ4V0UD
143
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