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74HC5555D-T Datasheet, PDF (7/23 Pages) NXP Semiconductors – Programmable delay timer with oscillator
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Philips Semiconductors
Programmable delay timer with oscillator
Product specification
74HC/HCT5555
DELAY TIME SELECTION
SELECT INPUTS
S3
S2
S1
L
L
L
L
L
L
L
L
H
L
L
H
L
H
L
L
H
L
L
H
H
L
H
H
.
.
.
H
L
L
H
L
L
H
L
H
H
L
H
H
H
L
H
H
L
H
H
H
H
H
H
OUTPUT Q/Q (FREQUENCY DIVIDING)
S0
BINARY
L
21
H
22
L
23
H
24
L
25
H
26
L
27
H
28
.
.
L
217
H
218
L
219
H
220
L
221
H
222
L
223
H
224
DECIMAL
2
4
8
16
32
64
128
256
.
131 072
262 144
524 288
1 048 576
2 097 152
4 194 304
8 388 608
16 777 216
handbook, fuRll pSagewidth
MR
A
Q
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Timing example shown for S3, S2, S1, S0 = 0011 (binary 24, decimal 16).
Fig.5 Timing diagram.
MGA649
September 1993
7
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