HT68F04 Holtek Semiconductor, HT68F04 Datasheet - Page 12

• Manufacturer Part Number: HT68F04
• Description: Small Package Enhanced Flash Type 8-Bit MCU
• Manufacturer: Holtek Semiconductor

Note:
A/D Converter Characteristics
Rev. 1.00
t
AV
V
V
DNL
INL
I
t
t
t
t
Symbol
Symbol
SST
ADC
ADCK
ADC
ADS
ON2ST
ADI
REF
DD
1. t
2. * For f
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.
SYS
System Start-up Timer Period
(Wake-up from HALT)
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
=1/f
ERC
SYS
, as the resistor tolerance will influence the frequency a precision resistor is recommended.
Parameter
Parameter
V
¾
2.2~
5.5V
2.2~
5.5V
2.2~
5.5V
2.2~
5.5V
DD
V
5V
5V
3V
5V
¾
¾
¾
DD
Test Conditions
f
f
f
Both RTC and LIRC are
off in any f
SYS
SYS
SYS
Test Conditions
V
t
t
No load, t
No load, t
12-bit A/D Converter
ADCK
ADCK
HT66F03/HT66F04/HT68F03/HT68F04
REF
12
=XTAL or RTC OSC
=ERC or HIRC OSC
=LIRC OSC
=AV
= 1.0ms
= 1.0ms
Conditions
Conditions
DD
SYS
ADCK
ADCK
¾
¾
¾
¾
¾
= 0.5ms
= 0.5ms
Min.
Min.
2.7
0.5
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
0
2
2
15~16
1024
1024
Typ.
Typ.
0.90
1.20
1~2
±1
±2
16
¾
¾
¾
¾
¾
4
VREF
Max.
Max.
AV
1.35
1.80
5.5
±2
±4
10
¾
¾
¾
¾
¾
¾
¾
April 16, 2010
DD
www.DataSheet4U.com
Ta=25°C
Ta=25°C
t
t
Unit
Unit
LSB
LSB
t
mA
mA
ADCK
ADCK
SYS
ms
ms
V
V
V