參數(shù)資料
型號(hào): SN74BCT244DBR
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: SSOP-20
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 658K
代理商: SN74BCT244DBR
SN54BCT244, SN74BCT244
OCTAL BUFFERS/DRIVERS
WITH 3STATE OUTPUTS
SCBS006E OCTOBER 1987 REVISED APRIL 1994
23
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
recommended operating conditions
SN54BCT244
SN74BCT244
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
15
mA
IOL
Low-level output current
48
64
mA
TA
Operating free-air temperature
55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT244
SN74BCT244
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.2
V
IOH = 3 mA
2.4
3.3
2.4
3.3
VOH
VCC = 4.5 V
IOH = 12 mA
2
3.2
V
VOH
VCC = 4.5 V
IOH = 15 mA
2
3.1
V
VOL
VCC = 4.5 V
IOL = 48 mA
0.38
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
V
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
VCC = 5.5 V,
VI = 0.5 V
1
mA
IOZH
VCC = 5.5 V,
VO = 2.7 V
50
A
IOZL
VCC = 5.5 V,
VO = 0.5 V
50
A
IOS
VCC = 5.5 V,
VO = 0
100
225
100
225
mA
ICCH
VCC = 5.5 V,
Outputs open
23
40
23
40
mA
ICCL
VCC = 5.5 V,
Outputs open
53
80
53
80
mA
ICCZ
VCC = 5.5 V,
Outputs open
4
10
4
10
mA
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
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