HT46RU22 Holtek Semiconductor Inc., HT46RU22 Datasheet - Page 5

• Manufacturer Part Number: HT46RU22
• Description: Ht46ru22 -- A/d Type 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

A.C. Characteristics
Note: *t
Rev. 1.20
f
f
t
t
t
t
t
t
t
t
t
Symbol
SYS
TIMER
WDTOSC
RES
SST
LVR
INT
AD
ADC
ADCS
IIC
SYS
=1/f
System Clock
(Crystal OSC, RC OSC)
Timer I/P Frequency
(TMR)
Watchdog Oscillator Period
External Reset Low Pulse Width
System Start-up Timer Period
Low Voltage Width to Reset
Interrupt Pulse Width
A/D Clock Period
A/D Conversion Time
A/D Sampling Time
I
2
C Bus Clock Period
SYS
Parameter
V
3V
5V
DD
Test Conditions
2.2V~5.5V
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
Wake-up from HALT
Connect to external
pull-high resistor 2k
5
Conditions
Min.
0.25
400
400
45
32
64
0
0
1
1
1
1024
Typ.
90
65
76
32
1
HT46RU22
Max.
4000
8000
4000
8000
180
130
March 23, 2007
2
Ta=25 C
*t
*t
Unit
kHz
kHz
kHz
kHz
ms
t
t
SYS
AD
AD
SYS
s
s
s
s
s