UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 553

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(2) In 2.7 V/1.59 V POC mode (option byte: POCMODE = 1)
Supply voltage (V
Internal reset signal
V
Notes 1.
Remark <1> to <7> in Figure 24-5 above correspond to <1> to <7> in the description of “When starting
POC
POC reset signal
(set by software)
(set by software)
(set by software)
(set by software)
LVI reset signal
LVIRF flag
= 1.59 V (TYP.)
LVISEL flag
LVIMD flag
2.7 V (TYP.)
LVIMK flag
LVION flag
2.
3.
LVIF flag
operation” in 24.4.1 (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 22
RESET FUNCTION.
Note 3
V
DD
Figure 24-5. Timing of Low-Voltage Detector Internal Reset Signal Generation
LVI
)
H
Note 1
L
<2>
<1>
Note 2
<4>
(Detects Level of Supply Voltage (V
<6>
CHAPTER 24 LOW-VOLTAGE DETECTOR
<3>
<7>
<5> Wait time
User’s Manual U17260EJ6V0UD
Not cleared
Not cleared
Cleared by
software
Not cleared
Not cleared
Cleared by
software
DD
)) (2/2)
DD
).
Clear
Clear
Clear
Time
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