UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 258
UPD78F9234MC-5A4-A
Manufacturer Part Number
UPD78F9234MC-5A4-A
Description
MCU 8BIT 8KB FLASH 30PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9232MC-5A4-A.pdf
(419 pages)
Specifications of UPD78F9234MC-5A4-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 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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16.1 Functions of Power-on-Clear Circuit
256
The power-on-clear circuit (POC) has the following functions.
Cautions 1. If an internal reset signal is generated in the POC circuit, the reset control flag register
Remark This product incorporates multiple hardware functions that generate an internal reset signal. A flag that
Generates internal reset signal at power on.
Compares supply voltage (V
when V
Compares supply voltage (V
when V
DD
DD
indicates the reset cause is located in the reset control flag register (RESF) for when an internal reset
signal is generated by the watchdog timer (WDT) or low-voltage-detection (LVI) circuit. RESF is not
cleared to 00H and the flag is set to 1 when an internal reset signal is generated by WDT or LVI.
For details of RESF, see CHAPTER 15 RESET FUNCTION.
2. Use these products in the following voltage range because the detection voltage (V
< V
(RESF) is cleared to 00H.
POC circuit is the supply voltage range.
Standard product, (A) grade product: 2.2 to 5.5 V, (A2) grade product: 2.26 to 5.5 V
V
POC
POC
.
.
CHAPTER 16 POWER-ON-CLEAR CIRCUIT
DD
DD
) and detection voltage (V
) and detection voltage (V
User’s Manual U17446EJ5V0UD
POC
POC
= 2.1 V (TYP.)), and generates internal reset signal
= 2.1 V (TYP.)), and releases internal reset signal
POC
) of the
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