參數(shù)資料
型號: SN74AHCT244DGV
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
中文描述: 八路緩沖器/ 3司機態(tài)輸出
文件頁數(shù): 3/17頁
文件大?。?/td> 557K
代理商: SN74AHCT244DGV
SN54AHCT244, SN74AHCT244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS228L
OCTOBER 1995
REVISED JULY 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54AHCT244
MIN
SN74AHCT244
MIN
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
IOH
IOL
TA
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.
Supply voltage
4.5
5.5
4.5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
5.5
0
5.5
V
Output voltage
0
VCC
8
0
VCC
8
V
High-level output current
mA
Low-level output current
8
8
mA
°
C
Operating free-air temperature
55
125
40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
SN54AHCT244
SN74AHCT244
UNIT
MIN
4.4
MAX
MIN
4.4
MAX
MIN
4.4
MAX
VOH
IOH =
50 A
IOH =
8 mA
IOL = 50 A
IOL = 8 mA
VO = VCC or GND
VI = 5.5 V or GND
VI = VCC or GND,
One input at 3.4 V,
Other inputs at VCC or GND
VI = VCC or GND
VO = VCC or GND
4 5 V
4.5 V
4.5
V
3.94
3.8
3.8
VOL
4 5 V
4.5 V
0.1
0.1
0.1
V
0.36
±
0.25
±
0.1
0.44
±
2.5
±
1*
40
0.44
±
2.5
±
1
40
IOZ
II
ICC
5.5 V
A
0 V to 5.5 V
A
IO = 0
5.5 V
4
A
ICC
5.5 V
1.35
1.5
1.5
mA
Ci
Co
5 V
2.5
10
10
pF
5 V
3
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
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