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Fairchild Semiconductor Electronic Components Datasheet

74LVT162245 Datasheet

Low Voltage 16-Bit Transceiver

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74LVT162245 pdf
January 1999
Revised June 2005
74LVT162245 74LVTH162245
Low Voltage 16-Bit Transceiver with 3-STATE Outputs
and 25: Series Resistors in A Port Outputs
General Description
The LVT162245 and LVTH162245 contains sixteen non-
inverting bidirectional buffers with 3-STATE outputs and is
intended for bus oriented applications. The device is byte
controlled. Each byte has separate control inputs which
can be shorted together for full 16-bit operation. The T/R
inputs determine the direction of data flow through the
device. The OE inputs disable both the A and B ports by
placing them in a high impedance state.
The LVT162245 and LVTH162245 are designed with
equivalent 25: series resistance in both the HIGH and
LOW states on the A Port outputs. This design reduces line
noise in applications such as memory address drivers,
clock drivers, and bus transceivers/transmitters.
The LVTH162245 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
These non-inverting transceivers are designed for low volt-
age (3.3V) VCC applications, but with the capability to pro-
vide a TTL interface to a 5V environment. The LVT162245
and LVTH162245 are fabricated with an advanced
BiCMOS technology to achieve high speed operation simi-
lar to 5V ABT while maintaining a low power dissipation.
Features
s Input and output interface capability to systems at
5V VCC
s Bushold data inputs eliminate the need for external pull-
up resistors to hold unused inputs (74LVTH162245),
also available without bushold feature (74LVT162245).
s Live insertion/extraction permitted
s Power Up/Down high impedance provides glitch-free
bus loading
s A Port outputs include equivalent series resistance of
25: making external termination resistors unnecessary
and reducing overshoot and undershoot
s A Port outputs source/sink r12 mA.
B Port outputs source/sink 32 mA/64 mA
s Functionally compatible with the 74 series 162245
s Latch-up performance exceeds 500 mA
s ESD performance:
Human-body model ! 2000V
Machine model ! 200V
Charged-device model ! 1000V
s Also packaged in plastic Fine Pitch Ball Grid Array
(FBGA)
Ordering Code:
Order Number Package Number
Package Description
74LVT162245G
(Note 1)(Note 2)
BGA54A
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
(Preliminary)
74LVT162245MEA
(Note 2)
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
74LVT162245MTD
(Note 2)
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
74LVTH162245G
(Note 1)(Note 2)
BGA54A
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
74LVTH162245MEA
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
[TUBE]
74LVTH162245MEX
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
[TAPE and REEL]
74LVTH162245MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TUBE]
74LVTH162245MTX
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
[TAPE and REEL]
Note 1: Ordering code “G” indicates Trays.
Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
© 2005 Fairchild Semiconductor Corporation DS012446
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

74LVT162245 Datasheet

Low Voltage 16-Bit Transceiver

No Preview Available !

74LVT162245 pdf
Logic Symbol
Connection Diagrams
Pin Assignments for SSOP and TSSOP
Pin Assignment for FBGA
(Top Thru View)
Pin Descriptions
Pin Names
OEn
T/Rn
A0A15
B0B15
NC
Description
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Inputs/3-STATE Outputs
Side B Inputs/3-STATE Outputs
No Connect
FBGA Pin Assignments
12
A B0 NC
B B2 B1
C B4 B3
D B6 B5
E B8 B7
F B10 B9
G B12 B11
H B14 B13
J B15 NC
Truth Tables
3
T/R1
NC
VCC
GND
GND
GND
VCC
NC
T/R2
4
OE1
NC
VCC
GND
GND
GND
VCC
NC
OE2
5
NC
A1
A3
A5
A7
A9
A11
A13
NC
6
A0
A2
A4
A6
A8
A10
A12
A14
A15
Inputs
OE1
T/R1
LL
LH
HX
Outputs
Bus B0B7 Data to Bus A0A7
Bus A0A7 Data to Bus B0B7
HIGH-Z State on A0A7, B0B7
Inputs
OE2
T/R2
LL
LH
HX
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
Outputs
Bus B8B15 Data to Bus A8A15
Bus A8A15 Data to Bus B8B15
HIGH-Z State on A8A15, B8B15
www.fairchildsemi.com
2


Part Number 74LVT162245
Description Low Voltage 16-Bit Transceiver
Maker Fairchild Semiconductor
Total Page 9 Pages
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74LVT162245 pdf
74LVT162245 Datasheet PDF
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