74HC237D(2004) 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HC237D Datasheet PDF : 19 Pages
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Philips Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
3. Quick reference data
Table 1: Quick reference data
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns.
Symbol Parameter
Conditions
Min Typ Max Unit
tPHL, tPLH propagation delay
CL = 15 pF; VCC = 5 V
An to Yn
-
16 -
ns
LE to Yn
-
19 -
ns
E1 to Yn
-
14 -
ns
E2 to Yn
-
14 -
ns
CI
input capacitance
-
3.5 -
pF
CPD
power dissipation
VI = GND to VCC
[1] -
60 -
pF
capacitance
[1] CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi × N + ∑(CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
∑(CL × VCC2 × fo) = sum of outputs.
4. Ordering information
Table 2: Ordering information
Type number Package
Temperature range
74HC237N
−40 °C to +125 °C
74HC237D
−40 °C to +125 °C
74HC237DB
−40 °C to +125 °C
Name
DIP16
SO16
SSOP16
Description
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads;
body width 3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
Version
SOT38-4
SOT109-1
SOT338-1
9397 750 13807
Product data sheet
Rev. 03 — 12 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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