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参数资料
| 型号： | SN54LVTT244J |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP20 |
| 封装： | CERAMIC, DIP-20 |
| 文件页数： | 4/7页 |
| 文件大小： | 129K |
| 代理商： | SN54LVTT244J |
SN54LVTT244, SN74LVTT244
3.3-V ABT OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES006 – FEBRUARY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54LVTT244
SN74LVTT244
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 2.7 V,
II = –18 mA
–1.2
V
VCC = MIN to MAX, IOH = –100 A
VCC – 0.2
VOH
VCC = 2.7 V,
IOH = – 8 mA
2.4
V
VOH
VCC =3V
IOH = – 24 mA
2
V
VCC = 3 V
IOH = – 32 mA
2
VCC =2 7V
IOL = 100 A
0.2
VCC = 2.7 V
IOL = 24 mA
0.5
VOL
IOL = 16 mA
0.4
V
VOL
VCC =3V
IOL = 32 mA
0.5
V
VCC = 3 V
IOL = 48 mA
0.55
IOL = 64 mA
0.55
II
VCC = 0 or MAX,
VI = 5.5 V
50
10
A
II
VCC = 3.6 V,
VI = VCC or GND
±1
A
Ioff
VCC = 0,
VI or VO = 0 to 4.5 V
±100
A
IOZH
VCC = 3.6 V,
VO = 3 V
1
5
A
IOZL
VCC = 3.6 V,
VO = 0.5 V
–1
–5
A
Outputs high
0.12
0.39
0.12
0.19
ICC
VCC = 3.6 V,
IO = 0,
Outputs low
8.6
14
8.6
12
mA
ICC
VI = VCC or GND
Outputs
disabled
0.12
0.39
0.12
0.19
mA
ICC§
VCC = 3 V to 3.6 V,
One input at VCC – 0.6 V,
Other inputs at VCC or GND
0.3
0.2
mA
Ci
VI = 3 V or 0
4
pF
Co
VO = 3 V or 0
8
pF
All typical values are at VCC = 3.3 V, TA = 25°C.
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
§ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
SN54LVTT244
SN74LVTT244
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 3.3 V
± 0.3 V
VCC = 2.7 V
VCC = 3.3 V
± 0.3 V
VCC = 2.7 V
UNIT
MIN
MAX
MIN
MAX
MIN
TYP
MAX
MIN
MAX
tPLH
A
Y
0.5
4.7
5.2
1
2.5
4.1
5
ns
tPHL
A
Y
0.5
4.4
5.4
1
2.5
4.1
5.2
ns
tPZH
OE
Y
0.8
5.4
6.5
1
2.7
5.2
6.3
ns
tPZL
OE
Y
0.8
5.4
7.6
1.1
3.1
5.2
6.7
ns
tPHZ
OE
Y
1.5
6.2
6.9
1.9
3.9
5.6
6.3
ns
tPLZ
OE
Y
1.2
5.5
6
1.8
3.2
5.1
5.6
ns
All typical values are at VCC = 3.3 V, TA = 25°C.
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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