参数资料
型号: SN74LVC74DBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 锁存器
英文描述: LVC/LCX/Z SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14
封装: SSOP-14
文件页数: 2/6页
文件大小: 84K
代理商: SN74LVC74DBR
SN74LVC74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP
WITH CLEAR AND PRESET
SCAS287B – JANUARY 1993 – REVISED JULY 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
S
4
3
1CLK
1D
2
1D
R
1
1Q
5
6
C1
10
11
2CLK
12
2D
13
2Q
9
8
1PRE
2PRE
1CLR
2CLR
1Q
2Q
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram, each flip-flop (positive logic)
TG
C
TG
C
TG
C
TG
C
PRE
CLK
D
CLR
Q
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
– 0.5 V to 6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
– 0.5 V to 6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Notes 1 and 2)
– 0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
– 50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC)
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC)
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND
±100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum power dissipation at TA = 55°C (in still air) (see Note 3): D package
1.25 W
. . . . . . . . . . . . . . . . . .
DB or PW package
0.5 W
. . . . . . . . . . . .
Storage temperature range, Tstg
–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.
NOTES:
1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The maximum package power dissipation is calculated using a junction temperature of 150
°C and a board trace length of 750 mils.
For more information, refer to the
Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology
Data Book, literature number SCBD002B.
相关PDF资料
PDF描述
SN74LVC821DB LVC/LCX/Z SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDSO24
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SN74LVC841DW LVC/LCX/Z SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDSO24
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