參數(shù)資料
型號： 74LVC245A
廠商： 意法半導體
英文描述： LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER (NOT INVERTED) HIGH PERFORMANCE
中文描述： 低電壓CMOS八進制總線收發(fā)器（不內(nèi)陷）高性能
文件頁數(shù)： 6/10頁
文件大?。?/td> 97K
代理商： 74LVC245A
Philips Semiconductors
Product specification
74LVC245A
74LVCH245A
Octal bus transceiver with direction pin with
5-volt tolerant inputs/outputs (3-State)
1998 May 20
6
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= –40
°
C to +85
°
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
MIN
TYP
1
V
CC
= 2.7V
MIN
V
CC
= 1.2V
TYP
UNIT
MAX
MAX
t
PHL
t
PLH
Propagation delay
A
n
to B
n
;
B
n
to A
n
3-State output enable time
OE to A
n
;
OE to B
n
3-State output disable time
OE to A
n
;
OE to B
n
1, 3
1.5
3.6
6.3
1.5
7.3
16
ns
t
PZH
t
PZL
2, 3
1.5
5.1
8.5
1.5
9.5
23
ns
t
PHZ
t
PLZ
2, 3
1.5
4.5
7.0
1.5
8.0
16
ns
NOTE:
1. Unless otherwise stated, all typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
AC WAVEFORMS
V
M
= 1.5V at V
V
and V
OH
are the typical output voltage drop that occur with the
output load.
V
X
= V
OL
+ 0.3V at V
CC
2.7V; V
X
= V
OL
+ 0.1 V
CC
at V
CC
V
Y
= V
OH
–0.3V at V
CC
2.7V; V
Y
= V
OH
– 0.1 V
CC
at V
CC
2.7V; V
= 0.5 V
at V
2.7V.
2.7V
2.7V
SY00041
INPUT
V
M
t
PHL
t
PLH
V
OL
V
I
V
M
GND
V
OH
OUTPUT
Waveform 1. Input (D
n
) to output (Qn) propagation delays.
t
PLZ
t
PZL
V
I
nOE INPUT
GND
V
CC
Q
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
OL
V
OH
Q
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
outputs
enabled
outputs
enabled
outputs
disabled
t
PHZ
V
M
V
M
V
M
t
PZH
V
X
V
Y
SW00207
Waveform 2. 3-State enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
R
T
V
IN
D.U.T.
V
OUT
C
L
V
CC
R
L
=500
SWITCH POSITION
TEST
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
SWITCH
Open
2
V
CC
GND
Test Circuit for 3-State Outputs
Open
GND
S
1
2
V
CC
DEFINITIONS
R
L
= Load resistor
C
L
= Load capacitance includes jig and probe capacitance
R
T
=Termination resistance should be equal to Z
OUT
of pulse generators.
V
CC
2.7V
2.7 – 3.6V
V
IN
V
CC
2.7V
SW00047
R
L
=500
Waveform 3. Load circuitry for switching times.
相關(guān)PDF資料
PDF描述
74LVC245AMTR LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER (NOT INVERTED) HIGH PERFORMANCE
74LVC245ATTR LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER (NOT INVERTED) HIGH PERFORMANCE
74LVC245 Octal Bidirectional Transceivers with 3-state Outputs
74LVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
74LVCH322244A 32-bit buffer/line driver;with 30Ω series termination resistors; with 5-volt tolerant inputs/outputs (3-State)(帶30Ω系列終端電阻器，5V輸入/輸出容限的32位緩沖器/線驅(qū)動器（三態(tài)）)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74LVC245ABQ 制造商:NXP Semiconductors 功能描述:IC TXRX OCTAL 3ST DHVQFN20 制造商:NXP Semiconductors 功能描述:IC, TXRX, OCTAL, 3ST, DHVQFN20 制造商:NXP Semiconductors 功能描述:IC, TXRX, OCTAL, 3ST, DHVQFN20, Logic Device Type:Transceiver, Non Inverting, Su 制造商:NXP Semiconductors 功能描述:IC, TXRX, OCTAL, 3ST, DHVQFN20, Logic Device Type:Transceiver, Non Inverting, Supply Voltage Min:1.2V, Supply Voltage Max:3.6V, Logic Case Style:DHVQFN, No. of Pins:20, Operating Temperature Min:-40C, Operating Temperature , RoHS Compliant: Yes
74LVC245ABQ,115 功能描述:總線收發(fā)器 OCTAL TRANCEIVER 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
74LVC245ABQ-G 功能描述:總線收發(fā)器 OCTAL TRANCEIVER 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
74LVC245ABQ-Q100X 制造商:NXP Semiconductors 功能描述:74LVC245ABQ-Q100/DHVQFN20/REEL - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC TXRX OCTAL BUS 3ST 20DHVQFN
74LVC245ABX,115 功能描述:總線收發(fā)器 8CHAN 3.6V 500mW 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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*