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參數(shù)資料
| 型號： | SN54LV245AW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LV/LV-A/LVX/H SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20 |
| 封裝： | CERAMIC, DFP-20 |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 189K |
| 代理商： | SN54LV245AW |
SN54LV245A, SN74LV245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS382D – SEPTEMBER 1997 – REVISED MAY 2000
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV245A
SN74LV245A
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A or B
B or A
4.3*
5.5*
1*
6.5*
1
6.5
ten
OE
A or B
CL = 15 pF
5.7*
8.5*
1*
10.6*
1
10
ns
tdis
OE
A or B
7.8*
12.8*
1*
14.7*
1
14.2
tpd
A or B
B or A
5.6
7.5
1
8.5
1
8.5
ten
OE
A or B
C50 pF
7
10.6
1
12
1
12
ns
tdis
OE
A or B
CL = 50 pF
10.9
14.7
1
16
1
16
ns
tsk(o)
1
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5)
PARAMETER
SN74LV245A
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
0.5
0.8
V
VOL(V)
Quiet output, minimum dynamic VOL
–0.4
–0.8
V
VOH(V)
Quiet output, minimum dynamic VOH
2.9
V
VIH(D)
High-level dynamic input voltage
2.31
V
VIL(D)
Low-level dynamic input voltage
0.99
V
NOTE 5: Characteristics are for surface-mount packages only.
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
VCC
TYP
UNIT
Cpd
Power dissipation capacitance
Outputs enabled
CL =50 pF
f=10MHz
3.3 V
20
pF
Cpd
Power dissi ation ca acitance
Out uts enabled
CL = 50 F,
f = 10 MHz
5 V
25
F
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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