HEF4526BN View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
HEF4526BN Datasheet PDF : 10 Pages
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Philips Semiconductors
Product specification
Programmable 4-bit binary down counter
HEF4526B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; input transition times ≤ 20 ns
Dynamic power
dissipation per
package (P)
VDD
V
TYPICAL FORMULA FOR P (µW)
5
1000 fi + ∑ (foCL) × VDD2
10
4000 fi + ∑ (foCL) × VDD2
15
10 000 fi + ∑ (foCL) × VDD2
where
fi = input freq. (MHz)
fo = output freq. (MHz)
CL = load capacitance (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
Propagation delays
CP0, CP1 → On
HIGH to LOW
LOW to HIGH
CP0, CP1 → TC
HIGH to LOW
LOW to HIGH
PL → On
HIGH to LOW
LOW to HIGH
MR → On
HIGH to LOW
Output transition times
HIGH to LOW
LOW to HIGH
VDD
V
SYMBOL MIN. TYP. MAX.
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tTHL
15
5
10
tTLH
15
150 300 ns
65 130 ns
50 100 ns
150 300 ns
65 130 ns
50 100 ns
210 420 ns
90 180 ns
70 140 ns
210 420 ns
90 180 ns
70 140 ns
200 400 ns
80 160 ns
60 120 ns
180 360 ns
70 140 ns
50 100 ns
140 280 ns
55 110 ns
40 80 ns
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
January 1995
6
TYPICAL EXTRAPOLATION
FORMULA
123 ns + (0,55 ns/pF) CL
54 ns + (0,23 ns/pF) CL
42 ns + (0,16 ns/pF) CL
123 ns + (0,55 ns/pF) CL
54 ns + (0,23 ns/pF) CL
42 ns + (0,16 ns/pF) CL
183 ns + (0,55 ns/pF) CL
79 ns + (0,23 ns/pF) CL
62 ns + (0,16 ns/pF) CL
183 ns + (0,55 ns/pF) CL
79 ns + (0,23 ns/pF) CL
62 ns + (0,16 ns/pF) CL
173 ns + (0,55 ns/pF) CL
69 ns + (0,23 ns/pF) CL
52 ns + (0,16 ns/pF) CL
153 ns + (0,55 ns/pF) CL
59 ns + (0,23 ns/pF) CL
42 ns + (0,16 ns/pF) CL
113 ns + (0,55 ns/pF) CL
44 ns + (0,23 ns/pF) CL
32 ns + (0,16 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
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