HT48RA0-5_12 HOLTEK [Holtek Semiconductor Inc], HT48RA0-5_12 Datasheet - Page 4

• Manufacturer Part Number: HT48RA0-5_12
• Description: Remote Type 8-Bit OTP MCU
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

A.C. Characteristics
Note:
Power-on Reset Characteristics
Rev.1.50
V
RR
t
Symbol
f
f
t
t
t
t
Symbol
POR
SYS
HIRC
SST
WDTOSC
LVR
POR
POR
VDD
t
To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1 F decoupling capacitor should be
connected between VDD and VSS and located as close to the device as possible.
SYS
System Clock
System Clock (HIRC)
System Start-up Timer Period
Watchdog Oscillator
Low Voltage Width to Reset
Power-on Reset Low Pulse Width
VDD Start Voltage to Ensure
Power-on Reset
VDD raising rate to Ensure
Power-on Reset
Minimum Time for VDD Stays at
V
=1/f
POR
SYS
to Ensure Power-on Reset
Parameter
Parameter
1.8V~
3.6V
2.2V~
3.6V
V
V
3V
DD
DD
Test Conditions
Test Conditions
Ta= -20 C ~ 70 C
Ta= -20 C ~ 50 C
Power-up or wake-up
from HALT
4
Conditions
Conditions
0.035
Min.
4013
Min.
0.25
400
45
1
1
Typ.
4095
1024
Typ.
1.00
90
HT48RA0-5
Max.
Max.
4000
4179
August 13, 2012
2.00
100
180
Ta=25 C
V/ms
Unit
Unit
kHz
kHz
t
mV
ms
ms
SYS
s
s