74ALVCH2245MTC
器件描述：Low Voltage Bidirectional Transceiver with Bushold and 26з Series Resistors in B Outputs
器件厂商：FAIRCHILD [Fairchild Semiconductor]
文件大小：84.8KB，共7页
Sponsor by e络盟器件资料摘要：
© 2002 Fairchild Semiconductor Corporation ds500716 www.fairchildsemi.com
January 2002
Revised January 2002
7
4
AL
VCH2245
Low V
o
l
t
age
Bi
dire
cti
onal
T
r
anscei
ver
w
i
th
Bushol
d
74ALVCH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26Ω Series Resistors in B Outputs
General Description
The ALVCH2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B Ports
by placing them in a high impedance state. The
ALVCH2245 data inputs include active bushold circuitry,
eliminating the need for external pull-up resistors to hold
unused or floating data inputs at a valid logic level.
The 74ALVCH2245 is designed for low voltage (1.65V to
3.6V) V
CC
applications. The ALVCH2245 is also designed
with 26Ω series resistance in the B Port outputs. This
design reduces line noise in applications such as memory
address drivers, clock drivers, and bus transceivers trans-
mitters
The 74ALVCH2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
a73 1.65V to 3.6V V
CC
supply operation
a73 3.6V tolerant control inputs
a73 Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
a73 26Ω series resistors in B Port outputs
a73 t
PD
(A to B)
4.9 ns max for 3.0V to 3.6V V
CC
6.1 ns max for 2.3V to 2.7V V
CC
9.8 ns max for 1.65V to 1.95V V
CC
a73 Uses patented Quiet Series noise/EMI reduction
circuitry
a73 Latchup conforms to JEDEC JED78
a73 ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol Connection Diagram
Quiet Series is a trademark of Fairchild Semiconductor Corporation.
Order Number Package Number Package Description
74ALVCH2245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ALVCH2245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
January 2002
Revised January 2002
7
4
AL
VCH2245
Low V
o
l
t
age
Bi
dire
cti
onal
T
r
anscei
ver
w
i
th
Bushol
d
74ALVCH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26Ω Series Resistors in B Outputs
General Description
The ALVCH2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B Ports
by placing them in a high impedance state. The
ALVCH2245 data inputs include active bushold circuitry,
eliminating the need for external pull-up resistors to hold
unused or floating data inputs at a valid logic level.
The 74ALVCH2245 is designed for low voltage (1.65V to
3.6V) V
CC
applications. The ALVCH2245 is also designed
with 26Ω series resistance in the B Port outputs. This
design reduces line noise in applications such as memory
address drivers, clock drivers, and bus transceivers trans-
mitters
The 74ALVCH2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
a73 1.65V to 3.6V V
CC
supply operation
a73 3.6V tolerant control inputs
a73 Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
a73 26Ω series resistors in B Port outputs
a73 t
PD
(A to B)
4.9 ns max for 3.0V to 3.6V V
CC
6.1 ns max for 2.3V to 2.7V V
CC
9.8 ns max for 1.65V to 1.95V V
CC
a73 Uses patented Quiet Series noise/EMI reduction
circuitry
a73 Latchup conforms to JEDEC JED78
a73 ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol Connection Diagram
Quiet Series is a trademark of Fairchild Semiconductor Corporation.
Order Number Package Number Package Description
74ALVCH2245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ALVCH2245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide