参数资料
型号: SN74LVTH245ADWE4
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: LVT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封装: GREEN, PLASTIC, MS-013, SOIC-20
文件页数: 18/24页
文件大小: 1025K
代理商: SN74LVTH245ADWE4
SN54LVTH245A, SN74LVTH245A
3.3-V ABT OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS130T MAY 1992 REVISED SEPTEMBER 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
0.5 V to 4.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high-impedance
or power-off state, VO (see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, VO (see Note 1)
0.5 V to VCC + 0.5 V
. . . . . . . . . . . . .
Current into any output in the low state, IO: SN54LVTH245A
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVTH245A
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the high state, IO (see Note 2): SN54LVTH245A
48 mA
. . . . . . . . . . . . . . . . . . . . . .
SN74LVTH245A
64 mA
. . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 3): DB package
70
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): DW package
58
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): GQN/ZQN package
78
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): NS package
60
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): PW package
83
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 4): RGY package
37
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 51-7.
4. The package thermal impedance is calculated in accordance with JESD 51-5.
recommended operating conditions (see Note 5)
SN54LVTH245A
SN74LVTH245A
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
2.7
3.6
2.7
3.6
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
5.5
V
IOH
High-level output current
24
32
mA
IOL
Low-level output current
48
64
mA
Δt/Δv
Input transition rise or fall rate
Outputs enabled
10
ns/V
Δt/ΔVCC
Power-up ramp rate
200
μs/V
TA
Operating free-air temperature
55
125
40
85
°C
NOTE 5: 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.
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