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参数资料
| 型号： | SN54AC74FK |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 锁存器 |
| 英文描述： | AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 6/10页 |
| 文件大小： | 194K |
| 代理商： | SN54AC74FK |
SN54AC74, SN74AC74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR AND PRESET
SCAS521D – AUGUST 1995 – REVISED SEPTEMBER 2002
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range,
VCC = 5 V"0.5 V (unless otherwise noted) (see Figure 1)
TA = 25°C
SN54AC74
SN74AC74
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
0
140
0
140
0
140
MHz
t
Pulse duration
PRE or CLR low
4.5
5.5
5
ns
tw
Pulse duration
CLK
4.5
5.5
5
ns
t
St
ti
dt bf
CLK
↑
Data
3
4
3
ns
tsu
Setup time, data before CLK
↑
PRE or CLR inactive
0
0.5
0
ns
th
Hold time, data after CLK
↑
0.5
ns
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54AC74
SN74AC74
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
100
125
70
95
MHz
tPLH
PRE
CLR
QQ
3.5
8
12
1
13
2.5
13
ns
tPHL
PRE or CLR
Q or Q
4
10.5
12
1
14
3.5
13.5
ns
tPLH
CLK
QQ
4.5
8
13.5
1
17.5
4
16
ns
tPHL
CLK
Q or Q
3.5
8
14
1
13.5
3.5
14.5
ns
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V " 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54AC74
SN74AC74
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
140
160
95
125
MHz
tPLH
PRE
CLR
QQ
2.5
6
9
1
9.5
2
10
ns
tPHL
PRE or CLR
Q or Q
3
8
9.5
1
10.5
2.5
10.5
ns
tPLH
CLK
QQ
3.5
6
10
1
12
3
10.5
ns
tPHL
CLK
Q or Q
2.5
6
10
1
10
2.5
10.5
ns
operating characteristics, VCC = 3.3 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
CL = 50 pF,
f = 1 MHz
45
pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54AC74J | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET |
| SN54AC74W | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET |
| SN54AC86 | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES |
| SN54AC86_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES |
| SN54AC86FK | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES |
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