參數(shù)資料
型號(hào)： 74LVC240A
廠商： NXP Semiconductors N.V.
英文描述： Octal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)(反相,5V輸入/輸出容限的八緩沖器/線驅(qū)動(dòng)器（三態(tài)）)
中文描述： 八路緩沖器/線路驅(qū)動(dòng)器5伏容限輸入/輸出;反相（3態(tài)）（，5V的輸入/輸出容限的八緩沖器反相/線驅(qū)動(dòng)器（三態(tài)））
文件頁數(shù)： 5/11頁
文件大?。?/td> 96K
代理商： 74LVC240A
Philips Semiconductors
Product specification
74LVC240A
Octal buffer/line driver with 5-volt
tolerant inputs/outputs; inverting (3-State)
1998 May 20
5
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
°
C to +85
°
C
UNIT
MIN
TYP
1
MAX
V
IH
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
CC
= 2.7 to 3.6V
2.0
V
IL
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
CC
= 2.7 to 3.6V
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
CC
0.5
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= –100
μ
A
V
CC
0.2
V
CC
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –18mA
V
CC
0.6
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
μ
A
GND
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
I
Input leakage current
2
V
CC
= 3 6V; V = 5 5V or GND
I
= 5.5V or GND
0 1
0.1
5
μ
A
I
OZ
3-State output OFF-state current
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= 5.5V or GND
0.1
10
μ
A
I
off
Power off leakage current
V
CC
= 0.0V; V
I
or V
O
= 5.5V
0.1
10
μ
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
10
μ
A
I
CC
Additional quiescent supply current
per input pin
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
5
500
μ
A
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
2. The specified overdrive current at the data input forces the data input to the opposite logic input state.
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= –40
°
C to +85
°
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
MIN
TYP
1
V
CC
= 2.7V
MIN
V
CC
= 1.2V
TYP
UNIT
MAX
MAX
t
PLH
t
PHL
Propagation delay
1A
n
to 1Y
n
;
2A
n
to 2Y
n
3-State output enable time
1OE to 1Y
n
;
2OE to 2Y
n
3-State output disable time
1OE to 1Y
n
;
2OE to 2Y
n
1, 3
1.5
3.5
6.5
1.5
7.5
16.0
ns
t
PZH
t
PZL
2, 3
1.5
4.3
8.0
1.5
9.0
19.0
ns
t
PHZ
t
PLZ
2, 3
1.5
3.7
7.0
1.5
8.0
17.0
ns
NOTE:
1. Unless otherwise stated, all typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
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