IW4029BD 查看數據表（PDF） - Integral Corp.
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IW4029BD Datasheet PDF : 8 Pages
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IW4029B
AC ELECTRICAL CHARACTERISTICS(CL=50pF, RL=200kΩ, Input tr=tf=20 ns)
Symbol
Parameter
tmax Maximum Clock Frequency (Figure 1)
tPHL, tPLH Maximum Propagation Delay, Clock to Q
(Figure 1)
tPHL, tPLH Maximum Propagation Delay, Clock to Carry
Output (Figure 1)
tPHL, tPLH Maximum Propagation Delay, Preset Enable
to Q (Figure 1)
tPHL, tPLH Maximum Propagation Delay, Preset Enable to
Carry Output (Figure 1)
tPHL, tPLH Maximum Propagation Delay, Carry Input to
Carry Output (Figure 1)
tTHL, tTLH Maximum Output Transition Time, Any Output
(Figure 1)
CIN Maximum Input Capacitance
VCC
Guaranteed Limit
V ≥-55°C 25°C ≤125°C Unit
5.0
2
10
4
15 5.5
2
1
MHz
4
2
5.5
2.75
5.0 500
10 240
15 180
500
1000
ns
240
480
180
360
5.0 560
10 260
15 190
560
1120
ns
260
520
190
380
5.0 470
470
940
ns
10 200
200
400
15 160
160
320
5.0 640
10 290
15 210
640
1280
ns
290
580
210
420
5.0 340
340
680
ns
10 140
140
280
15 100
100
200
5.0 200
200
400
ns
10 100
100
200
15
80
80
160
-
7.5
pF
CONTROL INPUT
BIN/DEC
(B/D)
UP/DOWN
(U/D)
PRESET ENABLE
(PE)
CARRY IN (CI)
(CLOCK ENABLE)
FUNCTION TABLE
LOGIC LEVEL
H
L
H
L
H
L
H
L
ACTION
BINARY COUNT
DECADE COUNT
UP COUNT
DOWN COUNT
JAM IN
NO JAM
NO COUNTER ADVANCE AT POS.
CLOCK TRANSITION
ADVANCE COUNTER AT POS.
CLOCK TRANSITION
67
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