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74VCX164245MTDX Datasheet

  • 74VCX164245MTDX

  • Single 8-bit Bus Transceiver

  • 9頁

  • ETC

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74VCX164245 Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
March 2000
Revised June 2001
74VCX164245
Low Voltage 16-Bit Dual Supply Translating Transceiver
with 3-STATE Outputs
General Description
The VCX164245 is a dual supply, 16-bit translating trans-
ceiver that is designed for two way asynchronous commu-
nication between busses at different supply voltages by
providing true signal translation. The supply rails consist of
V
CCB
, which is the higher potential rail operating at 2.3V to
3.6V and V
CCA
, which is the lower potential rail operating at
1.65V to 2.7V. (V
CCA
must be less than or equal to V
CCB
for proper device operation.) This dual supply design
allows for translation from 1.8V to 2.5V busses to busses at
a higher potential, up to 3.3V.
The Transmit/Receive (T/R) input determines the direction
of data flow. Transmit (active-HIGH) enables data from A
Ports to B Ports. Receive (active-LOW) enables data from
B Ports to A Ports. The Output Enable (OE) input, when
HIGH, disables both A and B Ports by placing them in a
High-Z condition. The A Port interfaces with the lower volt-
age bus (1.8V
鈭?/div>
2.5V). The B Port interfaces with the
higher voltage bus (2.7V
鈭?/div>
3.3V). Also the VCX164245 is
designed so that the control pins (T/R
n
, OE
n
) are supplied
by V
CCB
.
The 74VCX164245 is suitable for mixed voltage applica-
tions such as notebook computers using a 1.8V CPU and
3.3V peripheral components. It is fabricated with an
Advanced CMOS technology to achieve high speed opera-
tion while maintaining low CMOS power dissipation.
Features
s
Bidirectional interface between busses ranging from
1.65V to 3.6V
s
Supports Live Insertion and Withdrawal (Note 1)
s
Static Drive (I
OH
/I
OL
)
鹵
24 mA @ 3.0V V
CC
鹵
18 mA @ 2.3V V
CC
鹵
6 mA @ 1.65V V
CC
s
Uses patented noise/EMI reduction circuitry
s
Functionally compatible with 74 series 16245
s
Latchup performance exceeds 300 mA
s
ESD performance:
Human Body Model
>
2000V
Machine model
>
200V
s
Also packaged in plastic Fine-Pitch Ball Grid Array
(FBGA)
Note 1:
To ensure the high impedance state during power up or power
down, OE
n
should be tied to V
CCB
through a pull up resistor. The minimum
value of the resistor is determined by the current sourcing capability of the
driver.
Ordering Code:
Order Number
74VCX164245GX
(Note 2)
74VCX164245MTD
(Note 3)
Package Number
BGA54A
MTD48
Package Description
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
[Tape and Reel]
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Note 2:
BGA package available in Tape and Reel only.
Note 3:
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Diagram
漏 2001 Fairchild Semiconductor Corporation
DSR500159
www.fairchildsemi.com

74VCX164245MTDX 產(chǎn)品屬性

  • Logic Translator Solutions

  • 1,000

  • 集成電路 (IC)

  • 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器

  • 74VCX

  • 收發(fā)器，非反相

  • 2

  • 8

  • -

  • -

  • -40°C ~ 85°C

  • 表面貼裝

  • 48-TFSOP（0.240"，6.10mm 寬）

  • 48-TSSOP

  • 帶卷 (TR)

  • 74VCX164245MTDX-ND74VCX164245MTDXTR

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