參數(shù)資料
型號: SN74HC646NT
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDIP24
封裝: ROHS COMPLIANT, PLASTIC, DIP-24
文件頁數(shù): 10/15頁
文件大?。?/td> 459K
代理商: SN74HC646NT
SN54HC646, SN74HC646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCLS150C – DECEMBER 1982 – REVISED MARCH 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
A1
B1
One of Eight Channels
SAB
CLKAB
SBA
CLKBA
DIR
OE
To Seven Other Channels
21
3
23
22
1
2
4
20
1D
C1
1D
C1
Pin numbers shown are for the DW, JT, NT, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC)
±35 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND
±70 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): DW package
46
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): NT package
67
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
3. The package thermal impedance is calculated in accordance with JESD 51-3.
相關(guān)PDF資料
PDF描述
SN74HC684DWRE4 HC/UH SERIES, 8-BIT MAGNITUDE COMPARATOR, INVERTED OUTPUT, PDSO20
SNJ54HC684WR HC/UH SERIES, 8-BIT MAGNITUDE COMPARATOR, INVERTED OUTPUT, CDFP20
SN74HC688N HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20
SN74HC688PWRG4 HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
SN74HC688PWTG4 HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
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