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74LVQ245 датащи(PDF) 1 Page - STMicroelectronics

номер детали 74LVQ245
подробное описание детали  LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER WITH (3-STATE)
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LVQ245 датащи(HTML) 1 Page - STMicroelectronics

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July 2004
s
HIGH SPEED:
tPD = 5.7 ns (TYP.) at VCC = 3.3 V
s
COMPATIBLE WITH TTL OUTPUTS
s
LOW POWER DISSIPATION:
ICC = 5 µA (MAX.) at TA=25°C
s
LOW NOISE:
VOLP = 0.5V (TYP.) at VCC = 3.3V
s
75
Ω TRANSMISSION LINE DRIVING
CAPABILITY
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12mA (MIN) at VCC = 3.0 V
s
PCI BUS LEVELS GUARANTEED AT 24 mA
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 245
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LVQ245 is a low voltage CMOS OCTAL
BUS TRANSCEIVER (3-STATE fabricated with
sub-micron silicon gate and double-layer metal
wiring C2MOS technology. It is ideal for low power
and low noise 3.3V applications.
This IC is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
All
inputs
and
outputs
are
equipped
with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
All floating bus terminals during High Impedance
State must be held HIGH or LOW.
74LVQ245
LOW VOLTAGE CMOS OCTAL BUS
TRANSCEIVER WITH (3-STATE)
Figure 1: Pin Connection And IEC Logic Symbols
Table 1: Order Codes
PACKAGE
T & R
SOP
74LVQ245MTR
TSSOP
74LVQ245TTR
TSSOP
SOP
Rev. 5


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