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74HC245N Datasheet(PDF) 10 Page - NXP Semiconductors

Part # 74HC245N
Description  Octal bus transceiver; 3-state
Download  22 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC245N Datasheet(HTML) 10 Page - NXP Semiconductors

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9397 750 14502
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 31 January 2005
10 of 22
Philips Semiconductors
74HC245; 74HCT245
Octal bus tranceiver; 3-state
11. Dynamic characteristics
ICC
quiescent supply current
VI =VCC or GND; IO =0A;
VCC = 5.5 V
-
-
160
µA
∆ICC
additional quiescent supply
current per input pin
VI =VCC − 2.1 V; other inputs at
VI =VCC or GND;
VCC = 4.5 V to 5.5 V; IO =0A
An or Bn inputs
-
-
196
µA
OE input
-
-
735
µA
DIR input
-
-
441
µA
Table 8:
Static characteristics type 74HCT245 …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 9:
Dynamic characteristics type 74HC245
GND = 0 V; test circuit see Figure 7.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Tamb = 25 °C
tPHL, tPLH
propagation delay An to Bn or Bn
to An
see Figure 5
VCC = 2.0 V
-
25
90
ns
VCC = 4.5 V
-
9
18
ns
VCC = 5.0 V; CL =15pF
-
7
-
ns
VCC = 6.0 V
-
7
15
ns
tPZH, tPZL
3-state output enable time OE to
An or OE to Bn
see Figure 6
VCC = 2.0 V
-
30
150
ns
VCC = 4.5 V
-
11
30
ns
VCC = 6.0 V
-
9
26
ns
tPHZ, tPLZ
3-state output disable time OE to
An or OE to Bn
see Figure 6
VCC = 2.0 V
-
41
150
ns
VCC = 4.5 V
-
15
30
ns
VCC = 6.0 V
-
12
26
ns
tTHL, tTLH
output transition time
see Figure 5
VCC = 2.0 V
-
14
60
ns
VCC = 4.5 V
-
5
12
ns
VCC = 6.0 V
-
4
10
ns
CPD
power dissipation capacitance
per transceiver
VI = GND to VCC
[1] -30
-
pF
Tamb = −40 °C to +85 °C
tPHL, tPLH
propagation delay An to Bn or Bn
to An
see Figure 5
VCC = 2.0 V
-
-
115
ns
VCC = 4.5 V
-
-
23
ns
VCC = 6.0 V
-
-
20
ns


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