UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 480
UPD78F0413GA-GAM-AX
Manufacturer Part Number
UPD78F0413GA-GAM-AX
Description
8BIT UC, 32K FLASH, 1KB RAM, LCD
Manufacturer
NEC
Datasheet
1.UPD78F0413GA-GAM-AX.pdf
(562 pages)
Specifications of UPD78F0413GA-GAM-AX
Controller Family/series
UPD78F
No. Of I/o's
30
Ram Memory Size
1024Byte
Cpu Speed
10MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
32KB
Oscillator Type
External, Internal
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21.2 Configuration of Power-on-Clear Circuit
21.3 Operation of Power-on-Clear Circuit
(1) In 1.59 V POC mode (option byte: POCMODE = 0)
(2) In 2.7 V/1.59 V POC mode (option byte: POCMODE = 1)
480
The block diagram of the power-on-clear circuit is shown in Figure 21-1.
The timing of generation of the internal reset signal by the power-on-clear circuit and low-voltage detector is
shown below.
An internal reset signal is generated on power application.
detection voltage (V
The supply voltage (V
internal reset signal is generated. It is released when V
An internal reset signal is generated on power application.
detection voltage (V
The supply voltage (V
internal reset signal is generated. It is released when V
V
DD
POC
DDPOC
DD
DD
Figure 21-1. Block Diagram of Power-on-Clear Circuit
= 1.59 V 0.15 V), the reset status is released.
) and detection voltage (V
) and detection voltage (V
= 2.7 V 0.2 V), the reset status is released.
Reference
voltage
source
CHAPTER 21 POWER-ON-CLEAR CIRCUIT
User’s Manual U18698EJ1V0UD
+
V
DD
POC
POC
= 1.59 V 0.15 V) are compared. When V
= 1.59 V 0.15 V) are compared. When V
DD
DD
V
V
POC
DDPOC
When the supply voltage (V
When the supply voltage (V
.
.
Internal reset signal
DD
DD
) exceeds the
) exceeds the
DD
DD
< V
< V
POC
POC
, the
, the
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