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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 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
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS574B
SN74ALS574B
SN74ALS575A
TYP
UNIT
MIN
TYP
MAX
MIN
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II = –18 mA
IOH = –0.4 mA
IOH = –1 mA
IOH = –2.6 mA
IOL = 12 mA
IOL = 24 mA
VO = 2.7 V
VO = 0.4 V
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
Outputs high
–1.2
–1.2
V
VCC –2
2.4
VCC –2
VOH
VCC= 4 5 V
VCC = 4.5 V
3.3
V
2.4
3.2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.25
0.4
0.25
0.4
V
0.35
0.5
IOZH
IOZL
II
IIH
IIL
IO
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
20
20
μ
A
μ
A
mA
μ
A
mA
–20
–20
0.1
0.1
20
20
–0.2
–0.2
–20
–112
–30
–112
mA
11
18
11
18
′
ALS574B
VCC = 5.5 V
Outputs low
17
27
17
27
ICC
Outputs disabled
17
28
17
28
mA
Outputs high
10
17
10
17
SN74ALS575A
VCC = 5.5 V
Outputs low
Outputs disabled
15
16
24
30
15
16
24
30
All typical values are at VCC = 5 V, TA = 25
°
C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX§
SN74ALS574B
MIN
UNIT
SN54ALS574B
MIN
SN74ALS575A
MIN
MAX
MAX
MAX
fmax
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
28
35
30
MHz
CLK
Q
4
22
3
14
4
14
ns
4
17
4
14
4
14
OE
Q
4
21
3
18
4
18
ns
4
26
4
18
4
18
OE
Q
2
2
16
25
1
2
10
12
2
3
10
13
ns
§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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