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參數(shù)資料
| 型號(hào)： | 74LV245 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal bus transceiver (3-State)(八總線收發(fā)器（三態(tài)）) |
| 中文描述： | 八路總線收發(fā)器（3態(tài)）（八總線收發(fā)器（三態(tài)）） |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | 74LV245 |
Philips Semiconductors
Product specification
74LV245
Octal bus transceiver (3-State)
1998 Apr 20
6
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
≤
2.5ns; C
L
= 50pF; R
L
= 1K
CONDITION
LIMITS
SYMBOL
PARAMETER
WAVEFORM
–40 to +85
°
C
TYP
1
45
15
11
9
2
8
3
–40 to +125
°
C
MIN
UNIT
V
CC
(V)
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
MIN
MAX
28
28
19
16
11
MAX
Propagation delay
Pro agation delay
A
to B
n
;
B t A
to A
n
34
24
20
14
t
PHL/
t
PLH
Figures 1
ns
1.2
55
3-State output enable time
3-State out ut enable time
OE to A
n
;
OE t B
OE to B
n
2.0
19
31
39
t
PZH/
t
PZL
Figures 2
2.7
14
23
29
ns
3.0 to 3.6
10
2
18
23
4.5 to 5.5
8.5
3
14
18
1.2
65
3-State output disable time
OE t A
OE to A
n
;
OE to B
n
2.0
24
32
39
t
PHZ/
t
PLZ
Figures 2
2.7
18
24
29
ns
3.0 to 3.6
14
2
11.5
3
20
24
4.5 to 5.5
16
19
NOTES:
1. Unless otherwise stated, all typical values are measured at T
amb
= 25
°
C
2. Typical values are measured at V
CC
= 3.3 V.
3. Typical values are measured at V
CC
= 5.0 V.
AC WAVEFORMS
V
M
= 1.5 V at V
CC
≥
2.7 V and
≤
3.6 V
V
M
= 0.5 V
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
V
OL
and V
OH
are the typical output voltage drop that occur with the output load.
V
X
= V
OL
+ 0.3 V at V
CC
≥
2.7 V and
≤
3.6 V
V
X
= V
OL
+ 0.1
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
V
Y
= V
OH
– 0.3 V at V
CC
≥
2.7V and
≤
3.6 V
V
Y
= V
OH
– 0.1
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
SV00627
V
M
A
n
, B
n
INPUT
B
n
, A
n
OUTPUT
V
M
t
PLH
t
PHL
Figure 1. Input (A
n
, B
n
) to output
(B
n
, A
n
) propagation delays and the output transition times.
SV00628
outputs
disabled
outputs
enabled
outputs
t
PHZ
t
PZH
t
PZL
t
PLZ
V
M
V
M
V
M
OE INPUT
HIGH-to-OFF
LOW-to-OFF
VX
V
Y
GND
V
OUTPUT
V
I
V
OL
V
OUTPUT
GND
Figure 2. 3-State enable and disable times.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LV245A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS |
| 74LV245APWJ | 功能描述:74LV245APW/SOT360/TSSOP20 制造商:nexperia usa inc. 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:2,500 |
| 74LV245ATELL-E | 制造商:Renesas Electronics Corporation 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin TSSOP T/R Cut Tape |
| 74LV245ATPWJ | 功能描述:74LV245ATPW/SOT360/TSSOP20 制造商:nexperia usa inc. 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:2,500 |
| 74LV245D | 功能描述:總線收發(fā)器 3.3V OCTAL BUS XCVR 3-S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
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