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参数资料
| 型号： | SN54LVTH2245W |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | Octal 3-State Non-Inverting Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 的3.3V ABT生根粉3八路总线收发器态输出 |
| 文件页数： | 3/7页 |
| 文件大小： | 108K |
| 代理商： | SN54LVTH2245W |
SN54LVTH2245, SN74LVTH2245
3.3-V ABT OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS707C – SEPTEMBER 1997 – REVISED APRIL 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
Input voltage range, V
I
(see Note 1)
Voltage range applied to any output in the high-impedance
or power-off state, V
O
(see Note 1)
Voltage range applied to any output in the high state, V
O
(see Note 1)
Current into any output in the low state, I
O
: SN54LVTH2245 (A port)
–0.5 V to 4.6 V
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to V
CC
+ 0.5 V
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
96 mA
128 mA
30 mA
48 mA
64 mA
30 mA
–50 mA
–50 mA
115
°
C/W
97
°
C/W
128
°
C/W
SN74LVTH2245 (A port)
B port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the high state, I
O
(see Note 2): SN54LVTH2245 (A port)
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
SN74LVTH2245 (A port)
B port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
Output clamp current, I
OK
(V
O
< 0)
Package thermal impedance,
θ
JA
(see Note 3): DB package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. This current flows only when the output is in the high state and VO > VCC.
3. The package thermal impedance is calculated in accordance with JESD 51.
–65
°
C to 150
°
C
recommended operating conditions (see Note 4)
SN54LVTH2245
MIN
SN74LVTH2245
MIN
UNIT
MAX
MAX
VCC
VIH
VIL
VI
Supply voltage
2.7
3.6
2.7
3.6
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
5.5
5.5
V
IOH
High level output current
High-level output current
A port
–24
–32
mA
B port
–12
–12
IOL
Low level output current
Low-level output current
A port
48
64
mA
B port
12
12
t/
v
t/
VCC
TA
NOTE 4: All unused control 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.
Input transition rise or fall rate
Outputs enabled
10
10
ns/V
μ
s/V
°
C
Power-up ramp rate
200
200
Operating free-air temperature
–55
125
–40
85
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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