參數(shù)資料
型號(hào)： SN74ALVCH16269DLR
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： ALVC/VCX/A SERIES, 12-BIT EXCHANGER, TRUE OUTPUT, PDSO56
封裝： GREEN, PLASTIC, SSOP-56
文件頁數(shù)： 1/16頁
文件大小： 390K
代理商： SN74ALVCH16269DLR
www.ti.com
FEATURES
DESCRIPTION/ORDERING INFORMATION
DGG OR DL PACKAGE
(TOP VIEW)
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OEA
OEB1
2B3
GND
2B2
2B1
VCC
A1
A2
A3
GND
A4
A5
A6
A7
A8
A9
GND
A10
A11
A12
VCC
1B1
1B2
GND
1B3
NC
SEL
OEB2
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
NC No internal connection
SN74ALVCH16269
12-BIT TO 24-BIT REGISTERED BUS EXCHANGER
WITH 3-STATE OUTPUTS
SCES019N – JULY 1995 – REVISED JULY 2004
Member of the Texas Instruments Widebus
Family
Operates From 1.65 V to 3.6 V
Max tpd of 5 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)
This 12-bit to 24-bit registered bus exchanger is
designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH16269 is used in applications in
which two separate ports must be multiplexed onto,
or demultiplexed from, a single port. The device is
particularly
suitable
as
an
interface
between
synchronous
DRAMs
and
high-speed
microprocessors.
Data is stored in the internal B-port registers on the
low-to-high transition of the clock (CLK) input when
the appropriate 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. For data transfer in the B-to-A
direction, a single storage register is provided. The
select (SEL) line selects 1B or 2B data for the A
outputs. The register on the A output permits the
fastest possible data transfer, extending the period
during which the data is valid on the bus. The control
terminals are registered so that all transactions are
synchronous with CLK. Data flow is controlled by the
active-low output enables (OEA, OEB1, OEB2).
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Tube
SN74ALVCH16269DL
SSOP - DL
ALVCH16269
Tape and reel
SN74ALVCH16269DLR
-40
°C to 85°C
TSSOP - DGG
Tape and reel
SN74ALVCH16269DGGR
ALVCH16269
VFBGA - GQL
SN74ALVCH16269KR
Tape and reel
VH269
VFBGA - ZQL (Pb-free)
74ALVCH16269ZQLR
(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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ALVCH16269KR 功能描述:通用總線函數(shù) 12-24bit Reg Bus RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SN74ALVCH16270DGGR 功能描述:通用總線函數(shù) 12-24bit Reg Bus RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SN74ALVCH16270DL 功能描述:通用總線函數(shù) 12-24bit Reg Bus RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SN74ALVCH16270DLR 功能描述:通用總線函數(shù) 12-24bit Reg Bus RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SN74ALVCH16271DGGR 功能描述:通用總線函數(shù) 12-24bit Reg Bus RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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