74VCXH162373
器件描述：Low Voltage 16-Bit Transparent Latch with Bushold and 26ヘ Series Resistors in Outputs
器件厂商：FAIRCHILD [Fairchild Semiconductor]
文件大小：86.64KB，共7页
Sponsor by e络盟器件资料摘要：
© 2000 Fairchild Semiconductor Corporation DS500227 www.fairchildsemi.com
January 2000
Revised March 2000
7
4
VC
XH162
373 Lo
w
V
o
lt
age 1
6
-Bi
t
T
r
anspa
rent
Lat
ch wi
th
Bushol
d
74VCXH162373
Low Voltage 16-Bit Transparent Latch with Bushold
and 26Ω Series Resistors in Outputs
General Description
The VCXH162373 contains sixteen non-inverting latches
with 3-STATE outputs and is intended for bus oriented
applications. The device is byte controlled. The flip-flops
appear to be transparent to the data when the Latch enable
(LE) is HIGH. When LE is LOW, the data that meets the
setup time is latched. Data appears on the bus when the
Output Enable (OE) is LOW. When OE is HIGH, the out-
puts are in a high impedance state.
The VCXH162373 data inputs include active bushold cir-
cuitry, eliminating the need for external pull-up resistors to
hold unused or floating data inputs at a valid logic level.
The VCXH162373 is also designed with 26Ω series resis-
tors in the outputs. This design reduces line noise in appli-
cations such as memory address driver, clock drivers and
bus transceivers/transmitters.
The 74VCXH162373 is designed for low voltage (1.65V to
3.6V) V
CC
applications with output compatibility up to 3.6V.
The 74VCXH162373 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
a73 1.65V–3.6V V
CC
supply operation
a73 3.6V tolerant control inputs and outputs
a73 Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
a73 26Ω series resistors in outputs
a73 t
PD
(I
n
to O
n
)
3.3 ns max for 3.0V to 3.6V V
CC
4.5 ns max for 2.3V to 2.7V V
CC
9.0 ns max for 1.65V to 1.95V V
CC
a73 Static Drive (I
OH
/I
OL
)
±12 mA @ 3.0V V
CC
±8 mA @ 2.3V V
CC
±3 mA @ 1.65V V
CC
a73 Uses patented noise/EMI reduction circuitry
a73 Latch-up performance exceeds 300 mA
a73 ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Note 1: Use this Order Number to receive devices in Tape and Reel.
Logic Symbol Pin Descriptions
Ordering Number
Package
Package Description
Number
74VCXH162373MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TUBES]
74VCXH162373MTX
(Note 1)
MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TAPE and REEL]
Pin Names Description
OE
n
Output Enable Input (Active LOW)
LE
n
Latch Enable Input
I
0
–I
15
Bushold Inputs
O
0
–O
15
Outputs
January 2000
Revised March 2000
7
4
VC
XH162
373 Lo
w
V
o
lt
age 1
6
-Bi
t
T
r
anspa
rent
Lat
ch wi
th
Bushol
d
74VCXH162373
Low Voltage 16-Bit Transparent Latch with Bushold
and 26Ω Series Resistors in Outputs
General Description
The VCXH162373 contains sixteen non-inverting latches
with 3-STATE outputs and is intended for bus oriented
applications. The device is byte controlled. The flip-flops
appear to be transparent to the data when the Latch enable
(LE) is HIGH. When LE is LOW, the data that meets the
setup time is latched. Data appears on the bus when the
Output Enable (OE) is LOW. When OE is HIGH, the out-
puts are in a high impedance state.
The VCXH162373 data inputs include active bushold cir-
cuitry, eliminating the need for external pull-up resistors to
hold unused or floating data inputs at a valid logic level.
The VCXH162373 is also designed with 26Ω series resis-
tors in the outputs. This design reduces line noise in appli-
cations such as memory address driver, clock drivers and
bus transceivers/transmitters.
The 74VCXH162373 is designed for low voltage (1.65V to
3.6V) V
CC
applications with output compatibility up to 3.6V.
The 74VCXH162373 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
a73 1.65V–3.6V V
CC
supply operation
a73 3.6V tolerant control inputs and outputs
a73 Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
a73 26Ω series resistors in outputs
a73 t
PD
(I
n
to O
n
)
3.3 ns max for 3.0V to 3.6V V
CC
4.5 ns max for 2.3V to 2.7V V
CC
9.0 ns max for 1.65V to 1.95V V
CC
a73 Static Drive (I
OH
/I
OL
)
±12 mA @ 3.0V V
CC
±8 mA @ 2.3V V
CC
±3 mA @ 1.65V V
CC
a73 Uses patented noise/EMI reduction circuitry
a73 Latch-up performance exceeds 300 mA
a73 ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Note 1: Use this Order Number to receive devices in Tape and Reel.
Logic Symbol Pin Descriptions
Ordering Number
Package
Package Description
Number
74VCXH162373MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TUBES]
74VCXH162373MTX
(Note 1)
MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TAPE and REEL]
Pin Names Description
OE
n
Output Enable Input (Active LOW)
LE
n
Latch Enable Input
I
0
–I
15
Bushold Inputs
O
0
–O
15
Outputs