UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 583
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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Supply voltage (V
V
Internalreset signal
Notes 1.
Remark <1> to <7> in Figure 22-5 above correspond to <1> to <7> in the description of “When starting
POC
(1) In 1.59 V POC mode setup (option byte: LVISTART = 0)
(set by software)
POC reset signal
(set by software)
(set by software)
(set by software)
LVI reset signal
LVIRF flag
= 1.59 V (TYP.)
LVISEL flag
LVIMD flag
LVIMK flag
LVION flag
2.
3.
LVIF flag
operation” in 22.4.1 (1) When detecting level of supply voltage (V
The LVIMK flag is set to “1” by reset signal generation.
The LVIF flag may be set (1).
LVIRF is bit 0 of the reset control flag register (RESF). For details of RESF, see CHAPTER 19
RESET FUNCTION.
V
Note 3
DD
Figure 22-5. Timing of Low-Voltage Detector Internal Reset Signal Generation
LVI
)
H
L
Note1
<2>
Note2
<1>
<4>
<6>
(Detects Level of Supply Voltage (V
<7>
<5>Wait time
CHAPTER 22 LOW-VOLTAGE DETECTOR
<3>
Not cleared
Not cleared
User’s Manual U17554EJ4V0UD
Cleared by
software
Not cleared
Not cleared
Cleared by
software
DD
)) (1/2)
DD
).
Clear
Clear
Clear
Time
583
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