Nexperia
HEF4047B
Monostable/astable multivibrator
HEF4047B All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2017. All rights reserved.
Product data sheet Rev. 6 — 17 March 2017
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11 Application information
Table 9. Functional connections
[1]
Pins connected toFunction
V
DD
V
SS
input pulse
Output pulse
from pins
Output period or pulse width
Astable multivibrator
Free running 4, 5, 6, 14 7, 8, 9, 12 - 10, 11, 13
True gating 4, 6, 14 7, 8, 9, 12 5 10, 11, 13
Complement gating 6, 14 5, 7, 8, 9, 12 4 10, 11, 13
at pins 10, 11; t
A
= 4.40 R
t
C
t
at pin 13; t
A
= 2.20 R
t
C
t
Monostable multivibrator
Positive edge-
triggering
4, 14 5, 6, 7, 9, 12 8 10, 11
Negative edge-
triggering
4, 8, 14 5, 7, 9, 12 6 10, 11
Retriggerable 4, 14 5, 6, 7, 9 8, 12 10, 11
External countdown
[2]
14 5, 6, 7,
8, 9, 12
- 10, 11
at pins 10, 11; t
M
= 2.48 R
t
C
t
[1] In all cases, external resistor between pins 2 and 3, external capacitor between pins 1 and 3.
[2] Input pulse to RESET of external counting chip: external counting chip output to pin 4.