UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 589

• 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

Supply voltage (V
Internal reset signal
V
Notes 1.
Remark <1> to <9> in Figure 22-7 above correspond to <1> to <9> in the description of “When starting
POC
(2) In 2.7/1.59 V POC mode setup (option byte: LVISTART = 1)
(set by software)
(set by software)
(set by software)
(set by software)
= 1.59 V (TYP.)
LVISEL flag
LVIMD flag
LVIMK flag
LVION flag
2.7 V(TYP.)
2.
LVIIF flag
LVIF flag
INTLVI
operation” in 22.4.2 (1) When detecting level of supply voltage (V
The LVIMK flag is set to “1” by reset signal generation.
The interrupt request signal (INTLVI) is generated and the LVIF and LVIIF flags may be set (1).
V
DD
LVI
)
Figure 22-7. Timing of Low-Voltage Detector Interrupt Signal Generation
L
L
<2>
<1>
Note 1
Note 2
Note 2
Note 2
<4>
(Detects Level of Supply Voltage (V
CHAPTER 22 LOW-VOLTAGE DETECTOR
<7>
Cleared by software
<6>
<8> Cleared by software
<3>
<9>
<5> Wait time
User’s Manual U17554EJ4V0UD
DD
)) (2/2)
DD
).
Time
589