HT66F20 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT66F20 Datasheet PDF : 246 Pages
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HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
fLIRC
System Clock (LIRC)
5V Ta=25°C
fTIMER
Timer Input Pin Frequency
¾
¾
tRES
External Reset Low Pulse Width ¾
¾
tINT
Interrupt Pulse Width
¾
¾
tLVR
Low Voltage Width to Reset
¾
¾
tLVD
Low Voltage Width to Interrupt
¾
¾
tLVDS
LVDO stable time
¾
¾
tBGS
VBG Turn on Stable Time
¾
¾
tEERD
EEPROM Read Time
¾
¾
tEEWR
EEPROM Write Time
¾
¾
fSYS=HXT or LXT
tSST
System Start-up Timer Period
(Wake-up from HALT)
¾ fSYS=ERC or HIRC
fSYS=LIRC OSC
Min. Typ. Max. Unit
-10% 32 +10% kHz
¾
¾
1
fSYS
1
¾
¾
ms
1
¾
¾
tSYS
120 240 480
ms
20
45
90
ms
15
¾
¾
ms
200
¾
¾
ms
¾
45
90
ms
¾
2
4
ms
¾ 1024 ¾
¾ 15~16 ¾
tSYS
¾
1~2
¾
Note:
1. tSYS=1/fSYS
2. * For fERC, as the resistor tolerance will influence the frequency a precision resistor is recommended.
3. To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1mF decoupling capacitor should be
connected between VDD and VSS and located as close to the device as possible.
A/D Converter Characteristics
Symbol
Parameter
AVDD
VADI
VREF
DNL
INL
IADC
tADCK
tADC
tADS
tON2ST
A/D Converter Operating Voltage
A/D Converter Input Voltage
A/D Converter Reference Voltage
Differential Non-linearity
Integral Non-linearity
Additional Power Consumption if
A/D Converter is Used
A/D Converter Clock Period
A/D Conversion Time (Include
Sample and Hold Time)
A/D Converter Sampling Time
A/D Converter On-to-Start Time
Test Conditions
VDD
Conditions
¾
¾
¾
¾
¾
¾
5V tADCK= 1.0ms
5V tADCK= 1.0ms
3V No load, tADCK= 0.5ms
5V No load, tADCK= 0.5ms
¾
¾
¾ 12-bit A/D Converter
¾
¾
¾
¾
Ta=25°C
Min. Typ. Max. Unit
2.7
¾
5.5
V
0
¾ VREF V
2
¾
AVDD
V
¾
±1
±2 LSB
¾
±2
±4 LSB
¾ 0.90 1.35 mA
¾ 1.20 1.80 mA
0.5
¾
10
ms
¾
16
¾
tADCK
¾
4
¾
tADCK
2
¾
¾
ms
Rev. 1.10
17
February 1, 2010
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