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SN74ACT7814-20DL bảng dữ liệu(PDF) 6 Page - Texas Instruments

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tên linh kiện SN74ACT7814-20DL
Giải thích chi tiết về linh kiện  64 x 18 STROBED FIRST-IN, FIRST-OUT MEMORY
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SN74ACT7814
64
× 18 STROBED FIRST-IN, FIRST-OUT MEMORY
SCAS209C – APRIL 1992 – REVISED APRIL 1998
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to a disabled 3-state output
–0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 1)
74
°C/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.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions
’ACT7814-20
’ACT7814-25
’ACT7814-40
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
2
2
V
VIL
Low-level input voltage
0.8
0.8
0.8
V
IOH
High-level output current
Q outputs, flags
–8
–8
–8
mA
IOL
Low level output current
Q outputs
16
16
16
mA
IOL
Low-level output current
Flags
8
8
8
mA
TA
Operating free-air temperature
0
70
0
70
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP‡
MAX
UNIT
VOH
VCC = 4.5 V,
IOH = –8 mA
2.4
V
VOL
Flags
VCC = 4.5 V,
IOL = 8 mA
0.5
V
VOL
Q outputs
VCC = 4.5 V,
IOL = 16 mA
0.5
V
II
VCC = 5.5 V,
VI =VCC or 0
±5
µA
IOZ
VCC = 5.5 V,
VO =VCC or 0
±5
µA
ICC
VI = VCC – 0.2 V or 0
400
µA
∆ICC§
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at VCC or GND
1
mA
Ci
VI = 0,
f = 1 MHz
4
pF
Co
VO = 0,
f = 1 MHz
8
pF
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ This is the supply current for each input that is at one of the specified TTL voltage levels rather 0 V or VCC.


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