74HC_HCT245_15 Datasheet, PDF (2/22 Pages) NXP Semiconductors – Octal bus tranceiver; 3-state

Philips Semiconductors
74HC245; 74HCT245
Octal bus tranceiver; 3-state
Table 1: Quick reference data …continued
GND = 0 V; T_amb = 25 °C; t_r = t_f = 6 ns.
Symbol Parameter
Conditions
C_I
input capacitance
C_I/O
input/output capacitance
C_PD
power dissipation
capacitance per
transceiver
V_I = GND to
V_CC − 1.5 V
Min Typ Max Unit
-
3.5 -
pF
-
10
-
pF
[1] _-
30
-
pF
[1] C_PD is used to determine the dynamic power dissipation (P_D in µW):
P_D = C_PD × V_CC2 × f_i × N + ∑ (C_L × V_CC2 × f_o) where:
f_i = input frequency in MHz;
f_o = output frequency in MHz;
C_L = output load capacitance in pF;
V_CC = supply voltage in V;
N = number of inputs switching;
∑ (C_L × V_CC2 × f_o) = 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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