FXL4T245BQX Fairchild Semiconductor, FXL4T245BQX Datasheet - Page 2

• Manufacturer Part Number: FXL4T245BQX
• Description: TRANSLATOR 4BIT DUAL LV 14DQFN
• Manufacturer: Fairchild Semiconductor

Specifications of FXL4T245BQX

• Logic Function: Translator, Bidirectional, 3-State
• Number Of Bits: 4
• Input Type: Voltage
• Output Type: Voltage
• Number Of Channels: 1
• Number Of Outputs/channel: 1
• Differential - Input:output: No/No
• Propagation Delay (max): 3.5ns
• Voltage - Supply: 1.1 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-WQFN Exposed Pad, 14-DQFN
• Supply Voltage: 1.1 V ~ 3.6 V
• Logic Type: Translator
• Logic Family: FXL
• Input Bias Current (max): 0.01 mA
• High Level Output Current: - 24 mA
• Low Level Output Current: 24 mA
• Propagation Delay Time: 24 ns @ 1.1 V to 1.3 V
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.1 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Maximum Power Dissipation: 20 pF
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: FXL4T245BQXTR; FXL4T245BQX_NL; FXL4T245BQX_NLTR; FXL4T245BQX_NLTR

www.fairchildsemi.com
Terminal Descriptions
Connection Diagram
Power-Up/Power-Down Sequencing
FXL translators offer an advantage in that either V
be powered up first. This benefit derives from the chip
design. When either V
HIGH-Impedance state. The control inputs (T/R and OE)
are designed to track the V
tying OE to V
tention, excessive currents, or oscillations do not occur
during power-up/power-down. The size of the pull-up resis-
tor is based upon the current-sinking capability of the OE
driver.
OE
T/R
A
B
V
V
GND
n
n
CCA
CCB
Terminal
Names
Terminal Assignments for DQFN
CCA
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Side A Power Supply
Side B Power Supply
Ground
should be used to ensure that bus con-
CC
(Top View)
is at 0 volts, outputs are in a
CCA
Description
supply. A pull-up resistor
CC
may
2
Truth Table
H
L
X
Terminal Assignment
The recommended power-up sequence is the following:
1. Apply power to either V
2. Apply power to the T/R input (Logic HIGH for A-to-B
3. Apply power to other V
4. Drive the OE input LOW to enable the device.
The recommended power-down sequence is the following:
1. Drive OE input HIGH to disable the device.
2. Remove power from either V
3. Remove power from other V
LOW Voltage Level
HIGH Voltage Level
Don’t Care
operation; Logic LOW for B-to-A operation) and to the
respective data inputs (A Port or B Port). This may
occur at the same time as Step 1.
OE
L
L
Terminal Number
Inputs
10
11
12
13
14
1
2
3
4
5
6
7
8
9
T/R
H
L
CC
CC
.
Bus B Data to Bus A
Bus A Data to Bus B
.
CC
CC
Terminal Name
.
.
V
V
GND
GND
Outputs
T/R
OE
CCA
A
A
A
A
B
B
B
B
CCB
0
1
2
3
3
2
1
0