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PDF HEF4516B Data sheet ( Hoja de datos )
| Número de pieza | HEF4516B | |
| Descripción | Binary up/down counter | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
• The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
HEF4516B
MSI
Binary up/down counter
Product specification
File under Integrated Circuits, IC04
January 1995
1 page  
Philips Semiconductors
Binary up/down counter
FUNCTION TABLE
MR PL UP/DN CE
LH X X
LL
XH
LL L L
LL H L
HX X X
CP MODE
X parallel load
X no change
count down
count up
X reset
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
= positive-going transition
Product specification
HEF4516B
MSI
Fig.5 State diagram.
Logic equation for terminal count:
TC
=
CE ⋅
{ (UP/DN)
⋅
O0
⋅
O1
⋅
O2
⋅
O
3
+
U
P
/
D
N
⋅ O0 ⋅ O1 ⋅ O2 ⋅ O3}
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
where
10
4500 fi + ∑ (foCL) × VDD2
fi = input freq. (MHz)
15
11 200 fi + ∑ (foCL) × VDD2
fo = output freq. (MHz)
CL = load capacitance (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
January 1995
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet HEF4516B.PDF ] | |
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