參數(shù)資料
型號: SN74ALS520DWR
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): 6/16頁
文件大小: 467K
代理商: SN74ALS520DWR
SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521
8-BIT IDENTITY COMPARATORS
SDAS224B – JUNE 1982 – REVISED NOVEMBER 1995
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 680
,
TA = MIN to MAX
SN74ALS518
MIN
15
UNIT
MAX
tPLH
tPHL
tPLH
tPHL
P or Q
P = Q
33
ns
3
15
G
P = Q
15
3
33
15
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
: Q inputs of
ALS520
All other inputs
Operating free-air temperature range, T
A
: SN54ALS520
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS520, SN74ALS521
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CC
+ 0.5 V or 5.5 V, whichever is less
7 V
–55
°
C to 125
°
C
0
°
C to 70
°
C
–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.
recommended operating conditions
SN54ALS520
SN74ALS520
SN74ALS521
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
VIH
VIL
IOH
IOL
TA
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.7
0.8
V
High-level output current
–1
–2.6
mA
Low-level output current
12
24
mA
°
C
Operating free-air temperature
–55
125
0
70
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