UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 254
UPD78F9221CS-CAC-A
Manufacturer Part Number
UPD78F9221CS-CAC-A
Description
MCU 8BIT 2KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9221CS-CAC-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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15.2 Configuration of Power-on-Clear Circuit
15.3 Operation of Power-on-Clear Circuit
and an internal reset signal is generated when V
252
POC detection voltage
(V
Internal reset signal
Supply voltage (V
The block diagram of the power-on-clear circuit is shown in Figure 15-1.
In the power-on-clear circuit, the supply voltage (V
POC
= 2.1 V (TYP.))
Figure 15-2. Timing of Internal Reset Signal Generation in Power-on-Clear Circuit
DD
)
V
DD
Figure 15-1. Block Diagram of Power-on-Clear Circuit
Reference
voltage
source
CHAPTER 15 POWER-ON-CLEAR CIRCUIT
User’s Manual U16898EJ6V0UD
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 (TYP.)) are compared,
DD
V
POC
.
Time
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