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參數(shù)資料
| 型號： | 74ALVCH16245GRDR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS |
| 中文描述： | 16位總線收發(fā)器和三態(tài)輸出 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 465K |
| 代理商： | 74ALVCH16245GRDR |
www.ti.com
FEATURES
Member of the Texas Instruments Widebus
Family
Operates From 1.65 V to 3.6 V
Max t
pd
of 3 ns at 3.3 V
±
24-mA Output Drive at 3.3 V
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
DESCRIPTION/ORDERING INFORMATION
This 16-bit (dual-octal) noninverting bus transceiver is
designed for 1.65-V to 3.6-V V
CC
operation.
The
SN74ALVCH16245
asynchronous
communication
buses. The logic levels of the direction-control (DIR)
input and the output-enable (OE) input activate either
the B-port outputs or the A-port outputs or place both
output ports into the high-impedance mode. The
device transmits data from the A bus to the B bus
when the B-port outputs are activated, and from the B
bus to the A bus when the A-port outputs are
activated. The input circuitry on both A and B ports is
always active and must have a logic HIGH or LOW
level applied to prevent excess I
CC
and I
CCZ
.
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
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1DIR
1B1
1B2
GND
1B3
1B4
V
CC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
V
CC
2B5
2B6
GND
2B7
2B8
2DIR
1OE
1A1
1A2
GND
1A3
1A4
V
CC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V
CC
2A5
2A6
GND
2A7
2A8
2OE
SN74ALVCH16245
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES015L–JULY 1995–REVISED NOVEMBER 2005
is
designed
between
for
two
data
xxxxxx
To ensure the high-impedance state during power up or power down, OE should be tied to V
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 1995–2005, Texas Instruments Incorporated
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