參數(shù)資料
型號: LV244
廠商: System Logic Semiconductor Co., Ltd.
英文描述: OCTAL BUFFER/LINE DRIVE; 3-STATE
中文描述: 八路緩沖器/線路驅(qū)動(dòng),三態(tài)
文件頁數(shù): 3/7頁
文件大?。?/td> 130K
代理商: LV244
SN54LV244A, SN74LV244A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS383B – SEPTEMBER 1997 – REVISED JUNE 1998
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 4)
SN54LV244A
MIN
SN74LV244A
MIN
UNIT
MAX
MAX
VCC
Supply voltage
2
5.5
2
5.5
V
VCC = 2 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
VCC = 2 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
1.5
1.5
VIH
High level input voltage
High-level input voltage
VCC
×
0.7
VCC
×
0.7
VCC
×
0.7
VCC
×
0.7
VCC
×
0.7
VCC
×
0.7
V
0.5
0.5
VIL
Low level input voltage
Low-level input voltage
VCC
×
0.3
VCC
×
0.3
VCC
×
0.3
VCC
×
0.3
VCC
×
0.3
VCC
×
0.3
V
VI
Input voltage
0
5.5
0
5.5
V
VO
Output voltage
High or low state
0
VCC
5.5
0
VCC
5.5
V
3-state
0
0
VCC = 2 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
VCC = 2 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
–50
–50
μ
A
IOH
High level output current
High-level output current
–2
–2
–8
–8
mA
–16
–16
50
50
μ
A
IOL
Low level output current
Low-level output current
2
2
8
8
mA
16
16
0
200
0
200
t/
v
Input transition rise or fall rate
0
100
0
100
ns/V
0
20
0
20
TA
Operating free-air temperature
–55
125
–40
85
°
C
NOTE 4: 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.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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