參數(shù)資料
型號(hào): SN74BCT2244DW
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: BCT/FBT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: GREEN, PLASTIC, SOIC-20
文件頁數(shù): 11/17頁
文件大?。?/td> 698K
代理商: SN74BCT2244DW
SN54BCT2244, SN74BCT2244
OCTAL BUFFERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS017D SEPTEMBER 1988 REVISED MARCH 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
schematic of Y outputs
Output
VCC
GND
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, VO
0.5 V to 5.5 V
. . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, VO
0.5 V to VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK
30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO
24 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): DW package
58
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
69
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package
60
°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.
recommended operating conditions(see Note 3)
SN54BCT2244
SN74BCT2244
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IIK
Input clamp current
18
mA
IOH
High-level output current
12
mA
IOL
Low-level output current
12
mA
TA
Operating free-air temperature
55
125
0
70
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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