HEF4069UBT NXP Semiconductors, HEF4069UBT Datasheet - Page 8

• Manufacturer Part Number: HEF4069UBT
• Description: IC, 4000 LOCMOS, SMD, 4069, SOIC14
• Manufacturer: NXP Semiconductors

Specifications of HEF4069UBT

• Output Current: 2.4mA
• No. Of Inputs: 1
• Supply Voltage Range: 4.5V To 15.5V
• Logic Case Style: SOIC
• No. Of Pins: 14
• Operating Temperature Range: -40°C To +70°C
• Svhc: No SVHC
• Logic Type: Inverter Gate
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
12. Application information
HEF4069UB_6
Product data sheet
Fig 7.
Astable relaxation oscillator
V
V
DD
SS
C2
1/6 HEF4069UB
Some examples of applications for the HEF4069UB.
Figure 7
BAW62 diodes. The oscillation frequency is mainly determined by R1 × C1, provided
R1 << R2 and R2 × C2 << R1 × C1.
The function of R2 is to minimize the influence of the forward voltage across the protection
diodes on the frequency; C2 is a stray (parasitic) capacitance.
The period T
where:
V
The period is fairly independent of V
influenced by V
T
T
ST
2
D
1
=
R2
=
= the signal threshold level of the inverter.
R1C1In
R1C1In
shows an astable relaxation oscillator using two HEF4069UB inverters and 2
p
C
A
V
------------------------- -
2V
---------------------------- -
1/6 HEF4069UB
V
is given by T
DD
R1
DD
ST
DD
V
.
+
ST
–
–
V
V
V
ST
ST
Rev. 06 — 8 December 2009
ST
B
C1
p
= T
1
C
D
A
B
+ T
forward voltage
clamping diode
DD
2
,
, V
ST
and temperature. The duty factor, however, is
HEF4069UB
© NXP B.V. 2009. All rights reserved.
001aag162
V
0 V
V
0 V
1.5V
V
0.5V
0 V
−0.5V
V
0.5V
0 V
DD
DD
DD
DD
Hex inverter
DD
DD
DD
DD
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