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74LVQ240T 데이터시트 PDF




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광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 74LVQ240T 자료 제공

부품번호 74LVQ240T 기능
기능 LOW VOLTAGE OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


74LVQ240T 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



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74LVQ240T 데이터시트, 핀배열, 회로
® 74LVQ240
LOW VOLTAGE OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (INVERTED)
s HIGH SPEED:
tPD = 6 ns (TYP.) at VCC = 3.3V
s COMPATIBLE WITH TTL OUTPUT
s LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA = 25 oC
s LOW NOISE:
VOLP = 0.4V (TYP.) at VCC = 3.3V
s 75TRANSMISSION LINE OUTPUT DRIVE
CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12 mA (MIN)
s PCI BUS LEVELS GUARANTEED AT 24mA
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 3.6V (1.2VData Retention)
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 240
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The LVQ240 is a low voltage CMOS OCTAL BUS
BUFFER fabricated with sub-micron silicon gate
and double-layer metal wiring C2MOS
M
(Micro Package)
T
(TSSOP Package)
ORDER CODES :
74LVQ240M
74LVQ240T
technology. It is ideal for low power and low noise
3.3V applications.
It has better speed performance at 3.3V than 5V
LSTTL family combined with the true CMOS low
power consumption.
G output control governs four BUS BUFFERs.
This device is designed to be used with 3 state
memory address drivers, etc.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
February 1999
1/8




74LVQ240T pdf, 반도체, 판매, 대치품
74LVQ240
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 , Input tr = tf =3 ns)
Symb ol
Parameter
T est Con ditio n
VCC
(V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
tPLH Propagation Delay Time
tPHL
2.7
3.3(*)
7 13
69
14 ns
9.5
tPZL Output Enable Time
tPZH
2.7
3.3(*)
8.5 17
7 12
18 ns
12.5
tPLZ Output Disable Time
tPHZ
2.7
3.3(*)
9 19
7.5 13.5
20 ns
14
tOSLH Output to Output Skew
tOSHL Time (note 1, 2)
2.7
3.3(*)
0.5 1.5
0.5 1.5
1.5 ns
1.5
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs of the same device switching in the
same direction, either HIGH or LOW (tOSLH = |tPLHm - tPLHn|, tOSHL = |tPHLm - tpHLn|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ± 0.3V
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
VCC
(V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
CIN Input Capacitance
3.3
5 pF
COUT Output Capacitance
3.3
10 pF
CPD Power Dissipation
3.3 fIN = 10 MHz
Capacitance (note 1)
15
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operting current can be obtained by the following equation. ICC(opr) = CPD VCC fIN + ICC/8(per circuit)
TEST CIRCUIT
TEST
tPLH, tPHL
tPZL, tPLZ
tPZH, tPHZ
CL = 50 pF or equivalent (includes jigand probe capacitance)
RL = R1 = 500orequivalent
RT = ZOUT of pulse generator (typically 50)
4/8
SW IT CH
Open
2VCC
OPEN

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74LVQ240T 전자부품, 판매, 대치품
DIM.
A
A1
A2
b
c
D
E
E1
e
K
L
74LVQ240
TSSOP20 MECHANICAL DATA
MIN.
0.05
0.85
0.19
0.09
6.4
6.25
4.3
0o
0.50
mm
TYP.
0.10
0.9
6.5
6.4
4.4
0.65 BSC
4o
0.60
MAX.
1.1
0.15
0.95
0.30
0.2
6.6
6.5
4.48
8o
0.70
MIN.
0.002
0.335
0.0075
0.0035
0.252
0.246
0.169
0o
0.020
inch
TYP.
0.004
0.354
0.256
0.252
0.173
0.0256 BSC
4o
0.024
MAX.
0.433
0.006
0.374
0.0118
0.0079
0.260
0.256
0.176
8o
0.028
A A2
A1 b
e
D
PIN 1 IDENTIFICATION
1
K
c
L
E
E1
7/8

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