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74LV245 の電気的特性と機能

74LV245のメーカーはPhilipsです、この部品の機能は「Octal bus transceiver 3-State」です。


製品の詳細 ( Datasheet PDF )

部品番号 74LV245
部品説明 Octal bus transceiver 3-State
メーカ Philips
ロゴ Philips ロゴ 




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74LV245 Datasheet, 74LV245 PDF,ピン配置, 機能
INTEGRATED CIRCUITS
74LV245
Octal bus transceiver (3-State)
Product specification
Supersedes data of 1997 Feb 19
IC24 Data Handbook
1998 Apr 20
Philips
Semiconductors

1 Page





74LV245 pdf, ピン配列
Philips Semiconductors
Octal bus transceiver (3-State)
PIN CONFIGURATION
DIR 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
SV00624
LOGIC SYMBOL (IEEE/IEC)
19 G3
1
3EN1
3EN2
1
2 18
2
3 17
4 16
5 15
6 14
7 13
8 12
9 11
SV00626
LOGIC SYMBOL
1 DIR
2 A0
3 A1
4 A2
5 A3
6 A4
7 A5
8 A6
9 A7
Product specification
74LV245
OE 19
B0 18
B1 17
B2 16
B3
15
B4 14
B5
13
B6 12
B7
11
SV00625
1998 Apr 20
3


3Pages


74LV245 電子部品, 半導体
Philips Semiconductors
Octal bus transceiver (3-State)
Product specification
74LV245
AC CHARACTERISTICS
GND = 0V; tr = tf 2.5ns; CL = 50pF; RL = 1K
SYMBOL
PARAMETER
tPHL/tPLH
Propagation delay
An to Bn;
Bn to An
WAVEFORM
Figures 1
CONDITION
VCC(V)
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPZH/tPZL
3-State output enable time
OE to An;
OE to Bn
Figures 2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPHZ/tPLZ
3-State output disable time
OE to An;
OE to Bn
Figures 2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
NOTES:
1. Unless otherwise stated, all typical values are measured at Tamb = 25°C
2. Typical values are measured at VCC = 3.3 V.
3. Typical values are measured at VCC = 5.0 V.
LIMITS
–40 to +85 °C
MIN TYP1 MAX
45 28
15 28
11 19
92 16
83 11
–40 to +125 °C
MIN MAX
34
24
20
14
55
19 31
39
14 23
102 18
8.53 14
29
23
18
65
24 32
39
18 24
29
142
11.53
20
16
24
19
UNIT
ns
ns
ns
AC WAVEFORMS
VM = 1.5 V at VCC 2.7 V and 3.6 V
VM = 0.5 V × VCC at VCC < 2.7 V and 4.5 V
VOL and VOH are the typical output voltage drop that occur with the output load.
VX = VOL + 0.3 V at VCC 2.7 V and 3.6 V
VX = VOL + 0.1 × VCC at VCC < 2.7 V and 4.5 V
VY = VOH – 0.3 V at VCC 2.7V and 3.6 V
VY = VOH – 0.1 × VCC at VCC < 2.7 V and 4.5 V
An, Bn INPUT
VM
tPHL
tPLH
Bn, An OUTPUT
VM
SV00627
Figure 1. Input (An, Bn) to output
(Bn, An) propagation delays and the output transition times.
VI
OE INPUT
GND
VCC
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
VM
tPLZ
tPZL
tPHZ
VX
VM
tPZH
VY
VM
outputs
enabled
outputs
disabled
outputs
enabled
SV00628
Figure 2. 3-State enable and disable times.
1998 Apr 20
6

6 Page



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共有リンク

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