參數(shù)資料
型號(hào): SN74ABT245BPWR
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: ABT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁(yè)數(shù): 20/26頁(yè)
文件大?。?/td> 1070K
代理商: SN74ABT245BPWR
SN54ABT245A, SN74ABT245B
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS081L JANUARY 1991 REVISED APRIL 2005
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 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (except I/O ports) (see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, VO
0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: SN54ABT245A
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT245B
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
18 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): DB package
70
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): DGV package
92
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): DW package
58
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): GQN/ZQN package
78
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): N package
69
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): NS package
60
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): PW package
83
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): 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. The package thermal impedance is calculated in accordance with JESD 51-7.
3. The package thermal impedance is calculated in accordance with JESD 51-5.
recommended operating conditions (see Note 4)
SN54ABT245A
SN74ABT245B
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
0
VCC
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
5
ns/V
Δt/ΔVCC
Power-up ramp rate
200
μs/V
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.
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