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參數(shù)資料
| 型號： | 74VHC245 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Octal Bus Transceiver (3-State)(八總線收發(fā)器) |
| 中文描述： | 八路總線收發(fā)器（3態(tài)）（八總線收發(fā)器） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | 74VHC245 |
74VHC245
OCTAL BUS
TRANSCEIVER (3-STATE)
PRELIMINARY DATA
May 1998
ORDER CODES :
74VHC245M
74VHC245T
M
(MicroPackage)
I
HIGH SPEED:t
PD
= 4.0 ns(TYP.) at V
CC
=5V
I
LOWPOWER DISSIPATION:
I
CC
= 4
μ
A (MAX.) at T
A
=25
o
C
I
HIGH NOISEIMMUNITY:
V
NIH
=V
NIL
=28%V
CC
(MIN.)
I
SYMMETRICALOUTPUT IMPEDANCE:
|I
OH
| = I
OL
=8 mA (MIN)
I
BALANCED PROPAGATIONDELAYS:
t
PLH
t
PHL
I
OPERATINGVOLTAGERANGE:
V
CC
(OPR)= 2Vto5.5V
I
PIN AND FUNCTION COMPATIBLEWITH
74SERIES245
I
IMPROVEDLATCH-UP IMMUNITY
I
LOWNOISEV
OLP
=0.9V(Max.)
DESCRIPTION
The 74VHC245 is an advanced high-speed
CMOS OCTAL BUS TRANSCEIVER (3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
2
MOS technology. It
has similar high speed performance of equivalent
Bipolar Schottky TTL combined with true CMOS
low power dissipation.
This IC is intended for two-way asynchronous
communication
between
direction of data trasmission is determined by the
data
busses;
the
(TSSOP Package)
level of the DIR input. The enable input G can be
used to disable the device so that the busses are
effectivelyisolated.
All
inputs and
outputs
protectioncircuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
IT IS PROHIBITED TO APPLY A SIGNAL TO A
TERMINAL WHEN IT IS IN OUTPUT MODE
AND WHEN A BUS TERMINAL IS FLOATING
(HIGH IMPEDANCE STATE) IT IS REQUESTED
TO FIX THE INPUT LEVEL BY MEANS OF
EXTERNAL
PULL
DOWN
RESISTOR.
are
equipped with
OR
PULL
UP
PINCONNECTION AND IEC LOGICSYMBOLS
1/8
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PDF描述 |
|---|---|
| 74VHC257 | QUAD 2 CHANNEL MULTIPLEXER 3-STATE |
| 74VHC257M | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74VHC257T | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74VHC273 | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74VHC273M | Quadruple 2-Input Positive-AND Gates 14-PDIP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74VHC245_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OCTAL BUS TRANSCEIVER (3-STATE) |
| 74VHC245BQ | 制造商:NXP Semiconductors 功能描述:Bulk 制造商:NXP Semiconductors 功能描述:IC OCT BUS TXRX TRI-ST DHVQ |
| 74VHC245BQ,115 | 功能描述:總線收發(fā)器 1CHAN 5.5V 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(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 |
| 74VHC245D,118 | 功能描述:總線收發(fā)器 1CHAN 5.5V 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(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 |
| 74VHC245FT | 功能描述:IC BUS TRANCVR 8BIT 20TSSOP 制造商:toshiba semiconductor and storage 系列:汽車級，AEC-Q100，74VHC 包裝:剪切帶（CT） 零件狀態(tài):在售 邏輯類型:收發(fā)器，非反相 元件數(shù):1 每元件位數(shù):8 輸入類型:- 輸出類型:推挽式 電流 - 輸出高，低:8mA，8mA 電壓 - 電源:2 V ~ 5.5 V 工作溫度:-40°C ~ 125°C（TA） 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商器件封裝:20-TSSOP 基本零件編號:74VHC245 標(biāo)準(zhǔn)包裝:1 |
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