Datasheet

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August 2009

FXL4TD245 • Rev. 1.0.6

FXL4TD245 — Low-Voltage Dual-Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels

and 3-STATE Outputs and Independent Direction Controls

FXL4TD245

Low-Voltage Dual-Supply 4-Bit Signal Translator with Configurable

Voltage Supplies and Signal Levels and 3-STATE Outputs and

Independent Direction Controls

Features

■ Bi-directional interface between any 2 levels

from 1.1V to 3.6V

■ Fully configurable: inputs track V

level

■ Non-preferential power-up sequencing;

either V

may be powered-up first

■ Outputs remain in 3-STATE until active V

level is

reached

■ Outputs switch to 3-STATE if either V

is at GND

■ Power-off protection

■ Control inputs (T/R

, OE) levels are referenced to

CCA

voltage

■ Packaged in 16-terminal DQFN (2.5mm x 3.5mm)

and 16-terminal MicroMLP (1.8mm x 2.6mm)

■ ESD protections exceeds:

– 4kV HBM ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

– 8kV HBM I/O to GND ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

– 1kV CDM ESD (per ESD STM 5.3)

– 200V MM ESD (per JESD22-A115 & ESD STM5.2)

General Description

The FXL4TD245 is a configurable 4-bit dual-voltage-

supply translator designed for both uni-directional and

bi-directional voltage translation between two logic lev-

els. The device allows translation between voltages as

high as 3.6V to as low as 1.1V. The A port tracks the

CCA

level, and the B port tracks the V

CCB

level. This

allows for bi-directional voltage translation over a variety

of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V.

The device remains in 3-STATE until both V

s reach

active levels allowing either V

to be powered-up first.

Internal power down control circuits place the device in

3-STATE if either V

is removed.

The Transmit/Receive (T/R

) inputs independently deter-

mine the direction of data through each of the four bits.

The OE input, when HIGH, disables both the A and B

Ports by placing them in a 3-STATE condition. The

FXL4TD245 is designed so that the control pins (T/R

and

) are supplied by V

CCA

Ordering Information

For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

Functional Diagram

Order Number Package Number Eco Status Package Description

FXL4TD245BQX MLP016E Green

16-Terminal Depopulated Quad Very-Thin Flat Pack,

No Leads (DQFN), JEDEC MO-241, 2.5mm x 3.5mm

FXL4TD245UMX UMLP16A Green

16-Terminal Quad, Ultrathin, Molded Leadless Package

(UMLP), 1.8mm x 2.6mm, 0.4mm Pitch

CCA

0-3

T/R

CCB

0-3

Summary of content (14 pages)

PAGE 1
FXL4TD245 Low-Voltage Dual-Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs and Independent Direction Controls Features General Description ■ Bi-directional interface between any 2 levels The FXL4TD245 is a configurable 4-bit dual-voltagesupply translator designed for both uni-directional and bi-directional voltage translation between two logic levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V.
PAGE 2
VCCA VCCB 1 16 T/R2 OE T/R0 2 15 T/R1 A0 3 14 B0 A1 4 13 B1 A2 5 12 B2 A3 6 11 B3 T/R3 7 10 T/R2 8 12 11 GND T/R3 10 9 8 A3 14 7 A2 B1 15 6 A1 B0 16 5 A0 B3 13 B2 1 2 3 4 T/R1 VCCB VCCA T/R0 9 GND OE DQFN Pad Assignments (Top Through View) MicroMLP Pad Assignments (Top Through View) Top Mark XH Pin#1 Identifier MicroMLP Top Mark (Top View) Pin Assignment DQFN Pin # µMLP Pin # Terminal Name Description 1 3 VCCA Side A Power Supply 2 4 T/R0 Transm
PAGE 3
Power-Up/Power-Down Sequencing FXL translators offer an advantage in that either VCC may be powered up first. This benefit derives from the chip design. When either VCC is at 0 volts, outputs are in a HIGH-Impedance state. The control inputs (T/Rn and OE) are designed to track the VCCA supply. A pull-up resistor tying OE to VCCA should be used to ensure that bus contention, excessive currents, or oscillations do not occur during power-up/power-down.
PAGE 4
The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Symbol Parameter Rating Supply Voltage −0.5V to +4.
PAGE 5
Symbol VIH Parameter High Level Input Voltage(3) Conditions Data Inputs An, Bn Control Pins OE, T/Rn (Referenced to VCCA) VIL Low Level Input Voltage(3) VCCI (V) VCCO (V) Min. 2.7–3.6 1.1–3.6 2.0 2.3–2.7 1.6 1.65–2.3 0.65 x VCCI 1.4–1.65 0.65 x VCCI 1.1–1.4 0.9 x VCCI 2.7–3.6 Data Inputs An, Bn 1.6 1.65–2.3 0.65 x VCCA 1.4–1.65 0.65 x VCCA 1.1–1.4 0.9 x VCCA 1.1–3.6 0.8 2.3–2.7 0.7 0.35 x VCCI 1.4–1.65 0.35 x VCCI 1.1–1.4 0.1 x VCCI 1.1–3.
PAGE 6
Symbol Parameter Conditions VCCI (V) VCCO (V) Max. Units 1.1–3.6 3.6 ±1.0 μA μA Min. II Input Leakage Current. Control Pins VI = VCCA or GND IOFF Power Off Leakage Current An, VI or VO = 0V to 3.6V 0 3.6 ±10.0 Bn, VI or VO = 0V to 3.6V 3.6 0 ±10.0 IOZ 3-STATE Output Leakage(5) 0 ≤ VO ≤ 3.6V VI = VIH or VIL An, Bn OE = VIH 3.6 3.6 ±10.0 Bn, OE = Don't Care 0 3.6 +10.0 An, OE = Don't Care 3.6 0 +10.
PAGE 7
VCCA = 3.0V to 3.6V TA = −40°C to +85°C VCCB = VCCB = 3.0V to 3.6V 2.3V to 2.7V Symbol Parameter VCCB = 1.65V to 1.95V VCCB = VCCB = 1.4V to 1.6V 1.1V to 1.3V Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units tPLH, tPHL Propagation Delay A to B 0.2 3.5 0.3 3.9 0.5 5.4 0.6 6.8 1.4 22.0 ns Propagation Delay B to A 0.2 3.5 0.2 3.8 0.3 4.0 0.5 4.3 0.8 13.0 tPZH, tPZL Output Enable OE to B 0.5 4.0 0.7 4.4 1.0 5.9 1.0 6.4 1.5 17.0 Output Enable OE to A 0.
PAGE 8
VCCA = 1.4V to 1.6V TA = −40°C to +85°C VCCB = VCCB = 3.0V to 3.6V 2.3V to 2.7V VCCB = 1.65V to 1.95V VCCB = VCCB = 1.4V to 1.6V 1.1V to 1.3V Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units tPLH, tPHL Propagation Delay A to B 0.5 4.3 0.5 4.8 1.0 6.0 1.0 7.3 1.5 22.0 ns Propagation Delay B to A 0.6 6.8 0.8 6.9 0.9 7.1 1.0 7.3 1.3 9.5 tPZH, tPZL tPHZ, tPLZ Output Enable OE to B 1.1 7.5 1.1 7.6 1.3 7.7 1.4 7.9 2.0 20.
PAGE 9
VCC OPEN Rtr1 TEST SIGNAL tPLH, tPHL tPZH, tPHZ tPZL, tPLZ GND DUT VCC x 2 CL RL Test Switch tPLH, tPHL OPEN tPLZ, tPZL VCCO x 2 at VCCO = 3.3 ± 0.3V, 2.5V ± 0.2V, 1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1V tPHZ, tPZH GND Figure 1. AC Test Circuit AC Load Table VCCO CL RL Rtr1 1.2V ± 0.1V 15pF 2kΩ 2kΩ 1.5V ± 0.1V 15pF 2kΩ 2kΩ 1.8V ± 0.15V 15pF 2kΩ 2kΩ 2.5V ± 0.2V 15pF 2kΩ 2kΩ 3.3V ± 0.
PAGE 10
Tape Format for DQFN 10 Package Designator Tape Section Number Cavities Cavity Status Cover Tape Status BQX Leader (Start End) 125 (typ) Empty Sealed Carrier 2500/3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed Tape Dimensions millimeters ©2006 Fairchild Semiconductor Corporation FXL4TD245 • Rev. 1.0.6 www.fairchildsemi.
PAGE 11
Tape Size A B C D N W1 W2 12 mm 13.0 (330) 0.059 (1.50) 0.512 (13.00) 0.795 (20.20) 7.008 (178) 0.488 (12.4) 0.724 (18.4) ©2006 Fairchild Semiconductor Corporation FXL4TD245 • Rev. 1.0.6 www.fairchildsemi.
PAGE 12
Figure 5. 16-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241 2.5 x 3.5mm Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision.
PAGE 13
0.10 C 2.100 A 1.80 2X B 15X 0.563 0.663 1 PIN #1 IDENT 2.900 2.60 0.400 0.10 C 2X 16X 0.225 TOP VIEW 0.55 MAX. RECOMMENDED LAND PATTERN 0.10 C 0.152 0.08 C SEATING PLANE 0.050 C SIDE VIEW TERMINAL SHAPE VARIANTS 0.40 0.60 5 0.15 0.25 9 0.100 0.100 15X PIN 1 0.40 0.30 15X 0.50 0.15 0.25 NON-PIN 1 Supplier 1 1 16 0.30 0.50 0.15 0.25 13 ALL TERMINALS 0.15 PIN 1 0.10 C A B 0.05 C 0.30 15X 0.50 15X 0.25 NON-PIN 1 Supplier 2 BOTTOM VIEW A.
PAGE 14
FXL4TD245 — Low-Voltage Dual-Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs and Independent Direction Controls 14 www.fairchildsemi.com ©2006 Fairchild Semiconductor Corporation FXL4TD245 • Rev. 1.0.