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參數(shù)資料
| 型號(hào)： | SN54HCT540W |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Fixed-72kHz Buck PWM Voltage-Mode Controller with 40V / 5A Switch; Package: TO-220 5 LEAD STANDARD; No of Pins: 5; Container: Rail; Qty per Container: 50 |
| 中文描述： | 八路緩沖器和線路驅(qū)動(dòng)器，三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大小： | 93K |
| 代理商： | SN54HCT540W |
SN54HCT540, SN74HCT540
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS008B – MARCH 1984 – REVISED MAY 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54HCT540
MIN
NOM
SN74HCT540
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
tt
TA
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
2
2
V
Low-level input voltage
0
0.8
0
0.8
V
Input voltage
0
VCC
VCC
500
0
VCC
VCC
500
V
Output voltage
0
0
V
Input transition (rise and fall) time
0
0
ns
°
C
Operating free-air temperature
–55
125
–40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
4.499
SN54HCT540
MIN
4.4
SN74HCT540
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
VI= VIHor VIL
IOH = –20
μ
A
IOH = –6 mA
IOL = 20
μ
A
IOL = 6 mA
4 5 V
4.5 V
V
3.98
4.3
3.7
3.84
VOL
VI= VIHor VIL
VI = VIH or VIL
4 5 V
4.5 V
0.001
0.1
0.1
0.1
V
0.17
±
0.1
±
0.01
0.26
±
100
±
0.5
0.4
0.33
±
1000
II
IOZ
ICC
VI = VCC or 0
VO = VCC or 0,
VI = VCC or 0,
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
5.5 V
±
1000
±
10
160
nA
μ
A
μ
A
VI = VIH or VIL
IO = 0
5.5 V
±
5
80
5.5 V
8
ICC
5.5 V
1.4
2.4
3
2.9
mA
Ci
4.5 V
to 5.5 V
3
10
10
10
pF
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HCT540
MIN
SN74HCT540
MIN
UNIT
(OUTPUT)
MIN
MAX
MAX
MAX
td
tpd
A
Y
4.5 V
13
20
30
25
ns
5.5 V
12
18
27
23
ten
OE
Y
4.5 V
20
30
45
38
ns
5.5 V
18
27
41
34
tdis
OE
Y
4.5 V
19
30
45
38
ns
5.5 V
18
27
41
34
tt
Y
4.5 V
5.5 V
8
7
12
11
18
16
15
14
ns
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