74HC245 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HC245 Datasheet PDF : 22 Pages
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Philips Semiconductors
74HC245; 74HCT245
Octal bus tranceiver; 3-state
Table 1: Quick reference data …continued
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns.
Symbol Parameter
Conditions
CI
input capacitance
CI/O
input/output capacitance
CPD
power dissipation
capacitance per
transceiver
VI = GND to
VCC − 1.5 V
Min Typ Max Unit
-
3.5 -
pF
-
10
-
pF
[1] -
30
-
pF
[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 Name
Description
Version
74HC245N
−40 °C to +125 °C DIP20
plastic dual in-line package; 20 leads (300 mil)
SOT146-1
74HC245D
−40 °C to +125 °C SO20
plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74HC245PW
−40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
74HC245DB
−40 °C to +125 °C SSOP20
plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74HC245BQ
−40 °C to +125 °C
DHVQFN20 plastic dual-in-line compatible thermal enhanced SOT764-1
very thin quad flat package no leads; 20 terminals;
body 2.5 × 4.5 × 0.85 mm
74HCT245N
−40 °C to +125 °C DIP20
plastic dual in-line package; 20 leads (300 mil)
SOT146-1
74HCT245D
−40 °C to +125 °C SO20
plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74HCT245PW
−40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
74HCT245DB
−40 °C to +125 °C SSOP20
plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74HCT245BQ
−40 °C to +125 °C
DHVQFN20 plastic dual-in-line compatible thermal enhanced SOT764-1
very thin quad flat package no leads; 20 terminals;
body 2.5 × 4.5 × 0.85 mm
9397 750 14502
Product data sheet
Rev. 03 — 31 January 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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