Holtek HT66F20 - A;D Converter Characteristics

Rev. 2.50 24 June 22, 2017 Rev. 2.50 25 June 22, 2017
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
f
LIRC
System Clock (LIRC)
5V Ta=25°C
-10% 32 +10% kHz
2.2V~5.5V Ta=-40°C~85°C -50% 32 +60% kHz
f
TIMER
Timer Input Pin Frequency — — — — 1 f
SYS
t
RES
External Reset Low Pulse Width — — 1 — — μs
t
INT
Interrupt Pulse Width — — 1 — — t
SYS
t
LVR
Low Voltage Width to Reset — — 120 240 480 μs
t
LVD
Low Voltage Width to Interrupt — — 20 45 90 μs
t
LVDS
LVDO stable time — — 15 — — μs
t
BGS
V
BG
Turn on Stable Time — — 200 — — μs
t
EERD
EEPROM Read Time — — — 45 90 μs
t
EEWR
EEPROM Write Time — — — 2 4 ms
t
SST
System Start-up Timer Period
(Wake-up from HALT)
—
f
SYS
=HXT or LXT — 1024 —
t
SYS
f
SYS
=ERC or HIRC — 15~16 —
f
SYS
=LIRC — 1~2 —
Note:1.t
SYS
=1/f
SYS
2.*Forf
ERC
,astheresistortolerancewillinuencethefrequencyaprecisionresistorisrecommended.
3.TomaintaintheaccuracyoftheinternalHIRCoscillatorfrequency,a0.1μFdecouplingcapacitorshould
beconnectedbetweenVDDandVSSandlocatedasclosetothedeviceaspossible.
A/D Converter Characteristics
Ta=25°C
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
AV
DD
A/D Converter Operating Voltage — — 2.7 — 5.5 V
V
ADI
A/D Converter Input Voltage — — 0 — VREF V
V
REF
A/D Converter Reference Voltage — — 2 — AV
DD
V
DNL Differential Non-linearity 5V t
AD
=1.0μs — ±1 ±2 LSB
INL Integral Non-linearity 5V t
AD
=1.0μs — ±2 ±4 LSB
I
ADC
Additional Power Consumption if
A/D Converter is Used
3V
No load, t
AD
=0.5μs — 0.90 1.35 mA
5V
No load, t
AD
=0.5μs — 1.20 1.80 mA
t
ADCK
A/D Converter Clock Period — — 0.5 — 10 μs
t
ADC
A/D Conversion Time
(Include Sample and Hold Time)
— 12-bit ADC — 16 — t
ADCK
t
ADS
A/D Converter Sampling Time — — — 4 — t
ADCK
t
ON2ST
A/D Converter On-to-Start Time — — 2 — — μs