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74LVCH8T245BQ 数据表(PDF) 11 Page - NXP Semiconductors

部件名 74LVCH8T245BQ
功能描述  8-bit dual supply translating transceiver; 3-state
Download  28 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

74LVCH8T245BQ 数据表(HTML) 11 Page - NXP Semiconductors

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74LVC_LVCH8T245
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 12 December 2011
11 of 28
NXP Semiconductors
74LVC8T245; 74LVCH8T245
8-bit dual supply translating transceiver; 3-state
[1]
tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH.
Table 11.
Dynamic characteristics for temperature range
40 C to +85 C[1]
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6.
Symbol Parameter
Conditions
VCC(B)
Unit
1.5 V
 0.1 V 1.8 V  0.15 V 2.5 V  0.2 V 3.3 V  0.3 V 5.0 V  0.5 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
VCC(A) = 1.5 V  0.1 V
tpd
propagation
delay
An to Bn
1.7
27
1.7
23
1.3
18
1.0
15
0.8
13
ns
Bn to An
0.9
27
0.9
25
0.8
23
0.7
23
0.7
22
ns
tdis
disable time
OE to An
1.5
30
1.5
30
1.5
30
1.5
30
1.4
30
ns
OE to Bn
2.4
34
2.4
33
1.9
15
1.7
14
1.3
12
ns
ten
enable time
OE to An
0.4
34
0.4
34
0.4
34
0.4
34
0.4
34
ns
OE to Bn
1.8
36
1.8
34
1.5
18
1.2
15
0.9
13
ns
VCC(A) = 1.8 V  0.15 V
tpd
propagation
delay
An to Bn
1.7
25
1.7
21.9
1.3
9.2
1.0
7.4
0.8
7.1
ns
Bn to An
0.9
23
0.9
23.8
0.8
23.6
0.7
23.4
0.7
23.4
ns
tdis
disable time
OE to An
1.5
30
1.5
29.6
1.5
29.4
1.5
29.3
1.4
29.2
ns
OE to Bn
2.4
33
2.4
32.2
1.9
13.1
1.7
12.0
1.3
10.3
ns
ten
enable time
OE to An
0.4
24
0.4
24.0
0.4
23.8
0.4
23.7
0.4
23.7
ns
OE to Bn
1.8
34
1.8
32.0
1.5
16.0
1.2
12.6
0.9
10.8
ns
VCC(A) = 2.5 V  0.2 V
tpd
propagation
delay
An to Bn
1.5
23
1.5
21.4
1.2
9.0
0.8
6.2
0.6
4.8
ns
Bn to An
1.2
18
1.2
9.3
1.0
9.1
1.0
8.9
0.9
8.8
ns
tdis
disable time
OE to An
1.4
9.0
1.4
9.0
1.4
9.0
1.4
9.0
1.4
9.0
ns
OE to Bn
2.3
31
2.3
29.6
1.8
11.0
1.7
9.3
0.9
6.9
ns
ten
enable time
OE to An
1.0
10.9
1.0
10.9
1.0
10.9
1.0
10.9
1.0
10.9
ns
OE to Bn
1.7
32
1.7
28.2
1.5
12.9
1.2
9.4
1.0
6.9
ns
VCC(A) = 3.3 V  0.3 V
tpd
propagation
delay
An to Bn
1.5
23
1.5
21.2
1.1
8.8
0.8
6.3
0.5
4.4
ns
Bn to An
0.8
15
0.8
7.2
0.8
6.2
0.7
6.1
0.6
6.0
ns
tdis
disable time
OE to An
1.6
8.2
1.6
8.2
1.6
8.2
1.6
8.2
1.6
8.2
ns
OE to Bn
2.1
30
2.1
29.0
1.7
10.3
1.5
8.6
0.8
6.3
ns
ten
enable time
OE to An
0.8
8.1
0.8
8.1
0.8
8.1
0.8
8.1
0.8
8.1
ns
OE to Bn
1.8
31
1.8
27.7
1.4
12.4
1.1
8.5
0.9
6.4
ns
VCC(A) = 5.0 V  0.5 V
tpd
propagation
delay
An to Bn
1.5
22
1.5
21.4
1.0
8.8
0.7
6.0
0.4
4.2
ns
Bn to An
0.7
13
0.7
7.0
0.4
4.8
0.3
4.5
0.3
4.3
ns
tdis
disable time
OE to An
0.3
5.4
0.3
5.4
0.3
5.4
0.3
5.4
0.3
5.4
ns
OE to Bn
2.0
30
2.0
28.7
1.6
9.7
1.4
8.0
0.7
5.7
ns
ten
enable time
OE to An
0.7
6.4
0.7
6.4
0.7
6.4
0.7
6.4
0.7
6.4
ns
OE to Bn
1.5
31
1.5
27.6
1.3
11.4
1.0
8.1
0.9
6.0
ns


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