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參數(shù)資料
| 型號(hào)： | SN54HCT623 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs(八總線收發(fā)器(三態(tài)輸出)) |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出（八總線收發(fā)器（三態(tài)輸出）） |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 148K |
| 代理商： | SN54HCT623 |
SN54HCT623, SN74HCT623
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS016B – MARCH 1984 – REVISED MAY 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54HCT623
MIN
NOM
SN74HCT623
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
SN54HCT623
MIN
4.4
SN74HCT623
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
0.26
0.4
0.33
II
OEAB or
OEBA
VI = VCC or 0
5.5 V
±
0.1
±
100
±
1000
±
1000
nA
IOZ
ICC
A or B
VO = VCC or GND
VI = VCC or 0,
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
5.5 V
±
0.01
±
0.5
±
10
160
±
5
80
μ
A
μ
A
IO = 0
5.5 V
8
ICC
5.5 V
1.4
2.4
3
2.9
mA
Ci
OEAB or
OEBA
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
SN54HCT623
MIN
SN74HCT623
MIN
UNIT
(OUTPUT)
MIN
MAX
MAX
MAX
tpd
A or B
B or A
4.5 V
15
22
33
28
ns
5.5 V
13
20
30
25
ten
OEBA
A
4.5 V
30
42
63
53
ns
5.5 V
23
38
57
48
tdis
OEBA
A
4.5 V
18
30
45
38
ns
5.5 V
16
28
42
35
ten
OEAB
B
4.5 V
30
42
63
53
ns
5.5 V
23
38
57
48
tdis
OEAB
B
4.5 V
18
30
45
38
ns
5.5 V
16
28
42
35
tt
A or B
4.5 V
5.5 V
9
8
12
11
18
16
15
14
ns
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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