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IDT74ALVCH373PG Datasheet

  • IDT74ALVCH373PG

  • LATCH|SINGLE|8-BIT|AVC/ALVC-CMOS|TSSOP|20PIN|PLASTIC

  • 89.06KB

  • 6頁(yè)

  • ETC

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IDT74ALVCH373
3.3V CMOS OCTAL TRANSPARENT D-TYPE LATCH
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS OCTAL
TRANSPARENT D-TYPE
LATCH WITH 3-STATE
OUTPUTS AND BUS-HOLD
FEATURES:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
0.5 MICRON CMOS Technology
Typical t
SK
(o) (Output Skew) < 250ps
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
V
CC
= 3.3V 鹵0.3V, Normal Range
V
CC
= 2.7V to 3.6V, Extended Range
V
CC
= 2.5V 鹵0.2V
CMOS power levels (0.4碌 W typ. static)
Rail-to-Rail output swing for increased noise margin
Available in SOIC, SSOP, QSOP, and TSSOP packages
IDT74ALVCH373
DESCRIPTION:
This octal transparent D-type latch is built using advanced dual metal
CMOS technology. The ALVCH373 device is particularly suitable for
implementing buffer registers, I/O ports, bidirectional bus drivers, and
working registers. While the latch-enable (LE) input is high, the Q outputs
follow the data (D) inputs. When LE is taken low, the Q outputs are latched
at the logic levels set up at the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs
in either a normal logic state (high or low logic levels) or a high-impedance
state. In the high-impedance state, the outputs neither load nor drive the bus
lines significantly. The high-impedance state and increased drive provide
the capability to drive bus lines without interface or pullup components.
The ALVCH373 has been designed with a 鹵24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
The ALVCH373 has a 鈥渂us-hold鈥?which retains the inputs鈥?last state
whenever the input bus goes to a high impedance. This prevents floating
inputs and eliminates the need for pull-up/down resistors.
Drive Features for ALVCH373:
鈥?High Output Drivers: 鹵24mA
鈥?Suitable for heavy loads
APPLICATIONS:
鈥?3.3V High Speed Systems
鈥?3.3V and lower voltage computing systems
FUNCTIONAL BLOCK DIAGRAM
OE
1
LE
11
C1
1
D
3
1
D
2
1
Q
TO SEVEN OTHER CHANNELS
INDUSTRIAL TEMPERATURE RANGE
1
c
1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4474/-

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