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| 型号： | SN74ALVCH16271DL |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 编、解码器及复用、解复用 |
| 英文描述： | ALVC/VCX/A SERIES, 12 1 LINE TO 2 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PDSO56 |
| 封装： | GREEN, PLASTIC, SSOP-56 |
| 文件页数： | 1/15页 |
| 文件大小： | 340K |
| 代理商： | SN74ALVCH16271DL |
www.ti.com
FEATURES
DESCRIPTION/ORDERING INFORMATION
DGG OR DL PACKAGE
(TOP VIEW)
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OEA
LE1B
2B3
GND
2B2
2B1
VCC
A1
A2
A3
GND
A4
A5
A6
A7
A8
A9
GND
A10
A11
A12
VCC
1B1
1B2
GND
1B3
LE2B
SEL
OEB
CLKENA2
2B4
GND
2B5
2B6
VCC
2B7
2B8
2B9
GND
2B10
2B11
2B12
1B12
1B11
1B10
GND
1B9
1B8
1B7
VCC
1B6
1B5
GND
1B4
CLKENA1
CLK
SN74ALVCH16271
12-BIT TO 24-BIT MULTIPLEXED BUS EXCHANGER
WITH 3-STATE OUTPUTS
SCES017G – JULY 1995 – REVISED SEPTEMBER 2004
Member of the Texas Instruments Widebus
Family
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)
This 12-bit to 24-bit bus exchanger is designed for
1.65-V to 3.6-V VCC operation.
The SN74ALVCH16271 is intended for applications in
which two separate data paths must be multiplexed
onto, or demultiplexed from, a single data path. This
device
is
particularly
suitable
as
an
interface
between
conventional
DRAMs
and
high-speed
microprocessors.
A data is stored in the internal A-to-B registers on the
low-to-high transition of the clock (CLK) input,
provided that the clock-enable (CLKENA) inputs are
low. Proper control of these inputs allows two
sequential 12-bit words to be presented as a 24-bit
word on the B port.
Transparent
latches
in
the
B-to-A
path
allow
asynchronous operation to maximize memory access
throughput. These latches transfer data when the
latch-enable (LE) inputs are low. The select (SEL)
line selects 1B or 2B data for the A outputs. Data flow
is controlled by the active-low output enables (OEA,
OEB).
line
space
To ensure the high-impedance state during power up or power down, the output enables should be tied to V
CC
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.
ORDERING INFORMATION
ORDERABLE
TOP-SIDE
TA
PACKAGE(1)
PART NUMBER
MARKING
Tube
SN74ALVCH16271DL
SSOP - DL
ALVCH16271
-40
°C to 85°C
Tape and reel
SN74ALVCH16271DLR
TSSOP - DGG
Tape and reel
SN74ALVCH16271DGGR ALVCH16271
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
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.
Copyright 1995–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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| SN74ALVCH162841DLR | ALVC/VCX/A SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56 |
| SN74ALVCH16334DGVR | ALVC/VCX/A SERIES, 16-BIT DRIVER, TRUE OUTPUT, PDSO48 |
| SN74ALVCH16334DGGR | ALVC/VCX/A SERIES, 16-BIT DRIVER, TRUE OUTPUT, PDSO48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74ALVCH16271DLR | 功能描述:通用总线函数 12B To 24B Multplx Bus Exchngr RoHS:否 制造商:Texas Instruments 逻辑类型:CMOS 逻辑系列:74VMEH 电路数量:1 开启电阻（最大值）: 传播延迟时间:10.1 ns 电源电压-最大:3.45 V 电源电压-最小:3.15 V 最大工作温度:+ 85 C 最小工作温度:0 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN74ALVCH162721DGG | 制造商:Texas Instruments 功能描述: |
| SN74ALVCH162721DL | 功能描述:触发器 3.3V 20bit RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALVCH162721DLR | 功能描述:触发器 3.3V 20bit RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALVCH162721GR | 功能描述:触发器 3.3V 20bit RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
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