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74LVQ244 датащи(PDF) 1 Page - STMicroelectronics

номер детали 74LVQ244
подробное описание детали  LOW VOLTAGE OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON-INVERTED
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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74LVQ244 датащи(HTML) 1 Page - STMicroelectronics

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74LVQ244
LOW VOLTAGE OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (NON-INVERTED)
February 1999
ORDER CODES :
74LVQ244M
74LVQ244T
M
(Micro Package)
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
75
Ω TRANSMISSION 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 244
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The LVQ244 is a low voltage CMOS OCTAL BUS
BUFFER fabricated with sub-micron silicon gate
and
double-layer
metal
wiring
C
2MOS
T
(TSSOP Package)
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
1/8


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