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參數(shù)資料
| 型號(hào)： | SN54HC688FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-BIT IDENTITY COMPARATORS |
| 中文描述： | 8位身分比較器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 90K |
| 代理商： | SN54HC688FK |
SN54HC688, SN74HC688
8-BIT IDENTITY COMPARATORS
SCLS010B – DECEMBER 1982 – REVISED MAY 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range
Supply voltage range, V
CC
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
) (see Note 1)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) (see Note 1)
Continuous output current, I
O
(V
O
= 0 to V
CC
)
Continuous current through V
CC
or GND
Package thermal impedance,
θ
JA
(see Note 2): DW package
–0.5 V to 7 V
±
20 mA
±
20 mA
±
25 mA
±
50 mA
97
°
C/W
67
°
C/W
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
SN54HC688
MIN
NOM
SN74HC688
MIN
NOM
UNIT
MAX
MAX
VCC
Supply voltage
2
5
6
2
5
6
V
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
1.5
1.5
VIH
High-level input voltage
3.15
3.15
V
4.2
4.2
0
0.5
0
0.5
VIL
Low-level input voltage
0
1.35
0
1.35
V
0
1.8
0
1.8
VI
VO
Input voltage
0
VCC
VCC
1000
0
VCC
VCC
1000
V
Output voltage
0
0
V
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
0
0
tt
Input transition (rise and fall) time
0
500
0
500
ns
0
400
0
400
TA
Operating free-air temperature
–55
125
–40
85
°
C
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