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74AC240B Arkusz danych(PDF) 1 Page - STMicroelectronics

Numer części 74AC240B
Szczegółowy opis  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74AC240B Arkusz danych(HTML) 1 Page - STMicroelectronics

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74AC240
OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (INVERTED)
April 1997
s
HIGH SPEED: tPD = 4 ns (TYP.) at VCC =5V
s
LOW POWER DISSIPATION:
ICC =8
µA (MAX.) at TA =25 oC
s
HIGH NOISE IMMUNITY:
VNIH =VNIL = 28% VCC (MIN.)
s
50
Ω TRANSMISSION LINE DRIVING
CAPABILITY
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH|= IOL =24 mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH
≅ tPHL
s
OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 240
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The AC240 is an advanced CMOS OCTAL BUS
BUFFER (3-STATE) fabricated with sub-micron
silicon gate and double-layer metal wiring C
2MOS
technology. It is ideal for low power applications
mantaining high speed operation similar to
equivalent Bipolar Schottky TTL.
G control output 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
ORDER CODES :
74AC240B
74AC240M
M
(Micro Package)
B
(Plastic Package)
1/8


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