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74LCX16646MEAX Datasheet

  • 74LCX16646MEAX

  • Dual 8-bit Bus Transceiver

  • 100.56KB

  • 10頁(yè)

  • ETC

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74LCX16646 Low Voltage 16-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs
February 1994
Revised April 2001
74LCX16646
Low Voltage 16-Bit Transceiver/Register
with 5V Tolerant Inputs and Outputs
General Description
The LCX16646 contains sixteen non-inverting bidirectional
registered bus transceivers with 3-STATE outputs, provid-
ing multiplexed transmission of data directly from the input
bus or from the internal storage registers. Each byte has
separate control inputs which can be shorted together for
full 16-bit operation.The DIR inputs determine the direction
of data flow through the device. The CPAB and CPBA
inputs load data into the registers on the LOW-to-HIGH
transition (see Functional Description).
The LCX16646 is designed for low voltage (2.5V or 3.3V)
V
CC
applications with capability of interfacing to a 5V signal
environment.
The LCX16646 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s
5V tolerant inputs and outputs
s
2.3V鈥?.6V V
CC
specifications provided
s
5.2 ns t
PD
max (V
CC
=
3.3V), 20
碌
A I
CC
max
s
Power down high impedance inputs and outputs
s
Supports live insertion/withdrawal (Note 1)
s
鹵
24 mA Output Drive (V
CC
=
3.0V)
s
Implements patented noise/EMI reduction circuitry
s
Latch-up performance exceeds 500 mA
s
ESD performance:
Human Body Model
>
2000V
Machine Model
>
200V
Note 1:
To ensure the high-impedance state during power up or down, OE
should be tied to V
CC
through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number
74LCX16646MEA
74LCX16646MTD
Package Number
MS56A
MTD56
Package Description
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
A
n
B
n
OE
n
CPAB
n
, CPBA
n
SAB
n
, SBA
n
DIR
n
Description
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Output Enable Inputs
Clock Pulse Inputs
Select Inputs
Direction Control Inputs
漏 2001 Fairchild Semiconductor Corporation
DS012004
www.fairchildsemi.com

74LCX16646MEAX 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • 邏輯 - 緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器

  • 74LCX

  • 寄存收發(fā)器，非反相

  • 2

  • 8

  • 24mA，24mA

  • 2 V ~ 3.6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 56-BSSOP（0.295"，7.50mm 寬）

  • 56-SSOP

  • 帶卷 (TR)

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