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參數(shù)資料
| 型號(hào)： | 74ALS574 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路D型沿觸發(fā)器與觸發(fā)器3態(tài)輸出 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大?。?/td> | 129K |
| 代理商： | 74ALS574 |
SN54ALS574B, SN54AS574, SN54AS575
SN74ALS574B, SN74ALS575A, SN74AS574, SN74AS575
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SDAS165B – JUNE 1982 – REVISED JULY 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagrams (positive logic)
OE
CLK
1D
1Q
1
11
2
19
To Seven Other Channels
1D
C1
OE
CLK
1D
1Q
2
14
3
22
To Seven Other Channels
1D
C1
SN54ALS574B, SN74ALS574B,
SN54AS574, SN74AS574
SN74ALS575A, SN54AS575,
SN74AS575
1
CLR
Pin numbers shown are for the DW, J, JT, N, and NT packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
Voltage applied to a disabled 3-state output
Operating free-air temperature range, T
A
: SN54ALS574B
7 V
7 V
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS574B, SN74ALS575A
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–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
SN54ALS574B
SN74ALS574B
SN74ALS575A
UNIT
MIN
4.5
NOM
MAX
5.5
MIN
4.5
NOM
MAX
5.5
VCC
VIH
VIL
IOH
IOL
Supply voltage
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
fl
fclock
Clock frequency
′
ALS574B
SN74ALS575A
′
ALS574B, CLK high or low
SN74ALS575A, CLK high or low
0
28
0
35
MHz
0
30
tw
Pulse duration
16.5
14
ns
16.5
tsu
Set p time before CLK
Setup time before CLK
↑
Data
15
15
ns
SN74ALS575A, CLR
15
th
Hold time after CLK
↑
Data
4
0
ns
SN74ALS575A, CLR
0
TA
Operating free-air temperature
–55
125
0
70
°
C
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