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74HC7245 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. 74HC7245
Description  Octal bus Schmitt-trigger transceiver; 3-state
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC7245 Datasheet(HTML) 4 Page - NXP Semiconductors

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December 1990
4
Philips Semiconductors
Product specification
Octal bus Schmitt-trigger transceiver;
3-state
74HC/HCT7245
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
TRANSFER CHARACTERISTICS FOR 74HC
Voltages are referred to GND (ground = 0 V)
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
−40 to +85 −40 to +125
min.
typ.
max. min.
max.
min. max.
VT+
positive-going threshold
1.50
3.15
4.20
1.50
3.15
4.20
1.50
3.15
4.20
V
2.0
4.5
6.0
Figs. 4 and 5
VT−
negative-going threshold
0.30
1.35
1.80
0.30
1.35
1.80
0.30
1.35
1.80
V
2.0
4.5
6.0
Figs. 4 and 5
VH
hysteresis (VT+ − VT−)
0.1
0.25
0.3
0.2
0.4
0.5
0.1
0.25
0.3
0.1
0.25
0.3
V
2.0
4.5
6.0
Figs. 4 and 5
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
−40 to +85 −40 to +125
min. typ. max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
An to Bn;
Bn to An
33
12
10
100
20
17
125
25
21
150
30
26
ns
2.0
4.5
6.0
Fig.7
tPZH/ tPZL
3-state output enable time
OE to An;
OE to Bn
47
17
14
160
32
27
200
40
34
240
48
41
ns
2.0
4.5
6.0
Fig.7
tPHZ/ tPLZ
3-state output disable time
OE to An;
OE to Bn
52
19
16
160
32
27
200
40
34
240
48
41
ns
2.0
4.5
6.0
Fig.7
tTHL/ tTLH
output transition time
14
5
4
60
12
10
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.7


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