upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 195

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

13.2 Configuration of Power-on-Clear Circuit
13.3 Operation of Power-on-Clear Circuit
and an internal reset signal is generated when V
POC detection voltage
(V
Internal reset signal
Supply voltage (V
The block diagram of the power-on-clear circuit is shown in Figure 13-1.
In the power-on-clear circuit, the supply voltage (V
POC
= 2.1 V ±0.1 V)
Figure 13-2. Timing of Internal Reset Signal Generation in Power-on-Clear Circuit
DD
)
V
DD
Figure 13-1. Block Diagram of Power-on-Clear Circuit
Reference
voltage
source
CHAPTER 13 POWER-ON-CLEAR CIRCUIT
User’s Manual U16994EJ3V0UD
DD
+
−
< V
V
DD
DD
POC
) and detection voltage (V
, and an internal reset is released when V
Internal reset signal
POC
= 2.1 V ±0.1 V) are compared,
DD
≥ V
POC
.
Time
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