74HC4059N Просмотр технического описания (PDF) - Philips Electronics
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74HC4059N Datasheet PDF : 20 Pages
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Philips Semiconductors
Programmable divide-by-n counter
Product specification
74HC/HCT4059
FUNCTION TABLE
LATCH
ENABLE
INPUT
MODE
SELECT
INPUTS
FIRST COUNTING
SECTION
DECADE 1
LAST COUNTING
SECTION
DECADE 5
MAX
JAM
MAX. JAM
DIVIDED
LE
Ka Kb Kc MODE PRESET INPUTS
PRESET INPUTS
BY
STATE USED
STATE USED
H
HHH2
1
J1
8
7
J2J3J4
H
L HH4
3
J1J2
4
3
J3J4
H
HL H5
4
J1J2J3 2
1
J4
H
L L H8
7
J1J2J3 2
1
J4
H
H H L 10 9
J1J2J3J4 1
0
−
L
HHH2
1
J1
8
7
J2J3J4
L
L HH4
3
J1J2
4
3
J3J4
L
HL H5
4
J1J2J3 2
1
J4
L
L L H8
7
J1J2J3 2
1
J4
L
H H L 10 9
J1J2J3J4 1
0
−
H
L H L 10 9
J1J2J3J4 1
0
−
L
L HL
preset inhibited
preset inhibited
X
XL L
master preset
master preset
COUNTER
RANGE
BCD
MAX.
BINARY
MAX.
OPERATION
15 999 17 331
15 999 18 663
9 999 13 329
15 999 21 327
9 999 16 659
15 999 17 331
15 999 18 663
9 999 13 329
15 999 21 327
9 999 16 659
9 999 16 659
fixed
10 000
−
−
−
timer mode
divide-by-n mode
divide-by-10 000
mode
master preset
mode
Note
1. It is recommended that the device is in the master preset mode (Kb = Kc = logic 0) in order to correctly initialize the
device prior to start-up. An example of a suitable external circuit is shown in Fig.14.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Table 1
4
J1
J2
J3
L
L
H
1
J4
J5
H
H
5
J6 J7
LH
9
6
J8
J9
J10
J11
J12
J13 J14
J15 J16
L HL
L
H
LH
HL
Table 2
6
J1
J2
J3
L
HH
1
J4
J5
H
H
7
J6 J7
HH
4
5
J8
J9
J10
J11
J12
J13 J14
J15 J16
LLL
HL
HL
HL
Table 3
9
J1
J2
J3
J4
H
L
L
H
7
J5
J6 J7
H HH
4
8
J8
J9
J10
J11
J12
J13 J14
J15 J16
LLL
H
L
LL
L
H
1998 Jul 08
7
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