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E
EL
LE
EC
CT
TR
RIIC
CA
AL
L C
CH
HA
AR
RA
AC
CT
TE
ER
RIIS
ST
TIIC
CS
S
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
VDD
Operating Voltage
2.4
12
V
I STB
Standby Current
3V
Oscillator stops
0.1
1
µA
12V
2
4
µA
I DD
Operating Current
5V
No load
fOSC=100kHz
250
500
µA
12V
1200
2400
µA
I DOUT
Output Drive Current
5V
VOH=0.9VDD (Source)
0.6
1.2
mA
5V
VOL=0.1VDD (Sink)
0.6
1.2
mA
VIH
H Input Voltage
0.8VDD
VDD
V
VIL
L Input Voltage
0
0.2VDD
V
fOSC
Oscillator Frequency
10V
ROSC=330k
100
kHz
RTE
TE Pull-low Resistance
5V
VTE=5V
1.5
3
M
Ω
A
AB
BS
SO
OL
LU
UT
TE
E M
MA
AX
XIIM
MU
UM
M R
RA
AT
TIIN
NG
GS
S**
Supply Voltage .............. –0.3V to 13V
Storage Temperature................. –50°C to 125°C
Input Voltage..................VSS–0.3V to VDD+0.3V
Operating Temperature............... –20°C to 75°C
*Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only. Functional operation of this device at these or any other conditions
above those indicated in the operational sections of this specification is not implied and exposure to absolute
maximum rating conditions for extened periods may affect device reliability.
Holtek HT640/S Data Sheet
Page 3
E
EN
NC
CO
OD
DE
ER
R O
OS
SC
CIIL
LL
LA
AT
TO
OR
R F
FR
RE
EQ
QU
UE
EN
NC
CY
Y V
VS
S S
SU
UP
PP
PL
LY
Y V
VO
OL
LT
TA
AG
GE
E
25
50
75
100
125
150
175
200
225
250
275
300
2
3
4
5
6
7
8
9
10
11
12 12.5
VDD (VDC)
120k
150k
180k
220k
270k
330k
390k
470k
560k
680k
820k
1M
1.5M
2M
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