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參數資料
| 型號： | 74VHCT245AT |
| 廠商： | 意法半導體 |
| 英文描述： | OCTAL BUS TRANSCEIVER 3-STATE |
| 中文描述： | 八路總線收發器三態 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 68K |
| 代理商： | 74VHCT245AT |
74VHCT245A
OCTAL BUS
TRANSCEIVER (3-STATE)
PRELIMINARY DATA
August 1999
ORDER CODES :
74VHCT245AM
74VHCT245AT
M
(Micro Package)
I
HIGHSPEED:t
PD
=4.5ns(TYP.)atV
CC
= 5V
I
LOWPOWERDISSIPATION:
I
CC
=4
μ
A(MAX.) at T
A
=25
o
C
I
COMPATIBLEWITH TTL OUTPUTS:
V
IH
=2V (MIN),V
IL
= 0.8V(MAX)
I
POWERDOWN PROTECTIONON INPUTS&
OUTPUTS
I
SYMMETRICALOUTPUTIMPEDANCE:
|I
OH
| = I
OL
= 8 mA(MIN)
I
BALANCEDPROPAGATIONDELAYS:
t
PLH
t
PHL
I
OPERATINGVOLTAGERANGE:
V
CC
(OPR)= 4.5Vto 5.5V
I
PINANDFUNCTION COMPATIBLEWITH
74SERIES245
I
IMPROVEDLATCH-UP IMMUNITY
I
LOWNOISE:V
OLP
= 0.9V(Max.)
DESCRIPTION
The 74VHCT245A is an advanced high-speed
CMOS OCTAL BUS TRANSCEIVER (3-STATE)
fabricated with sub-micron silicon gate
double-layermetal wiring C
2
MOS technology.
This IC is intended for two-way asynchronous
communication
between
direction of data trasmission is determined by the
and
data
busses;
the
T
(TSSOPPackage)
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 are
protection circuits 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.
equipped with
OR
PULL
UP
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/9
相關PDF資料 |
PDF描述 |
|---|---|
| 74VHCT245A | Octal Buffer/Line Driver with 3-STATE Outputs |
| 74VHCT245AM | Octal Buffer/Line Driver with 3-STATE Outputs |
| 74VHCT245AMTC | Octal D-Type Flip-Flops With Clear 20-PDIP -40 to 85 |
| 74VHCT245AN | Octal Buffer/Line Driver with 3-STATE Outputs |
| 74VHCT245ASJ | Octal Buffer/Line Driver with 3-STATE Outputs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHCT245ATTR | 功能描述:總線收發器 Octal Bus Transceivr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量: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 |
| 74VHCT245BQ | 制造商:NXP Semiconductors 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin DHVQFN EP T/R Bulk 制造商:NXP Semiconductors 功能描述:IC TXRX OCTAL 3ST DHVQFN20 |
| 74VHCT245BQ,115 | 功能描述:總線收發器 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 |
| 74VHCT245D,118 | 功能描述:總線收發器 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 |
| 74VHCT245M | 功能描述:IC OCTAL BI-DIRECT TRANSVR SO20 制造商:on semiconductor 系列:74VHCT 包裝:管件 零件狀態:停產 邏輯類型:緩沖器，非反向 元件數:1 每元件位數:8 電流 - 輸出高，低:8mA，8mA 電壓 - 電源:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應商器件封裝:20-SOIC 基本零件編號:74VHCT245 標準包裝:36 |
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