FXL4245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels
and 3-STATE Outputs
April 2004
Revised June 2004
FXL4245
Low Voltage Dual Supply 8-Bit Signal Translator
with Configurable Voltage Supplies
and Signal Levels and 3-STATE Outputs
General Description
The FXL4245 is a configurable dual-voltage-supply transla-
tor designed for bi-directional voltage translation of signals
between two voltage levels. The device allows translation
between voltages as high as 3.6V to as low as 1.1V. The A
Port tracks the V
CCA
level, and the B Port tracks the V
CCB
level. Both ports are designed to accept supply voltage lev-
els from 1.1V to 3.6V. 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
CC
s reach
active levels allowing either V
CC
to be powered-up first.
The device also contains power down control circuits that
place the device in 3-STATE if either V
CC
is removed.
The Transmit/Receive (T/R) input determines the direction
of data flow through the device. The OE input, when HIGH,
disables both the A and B Ports by placing them in a
3-STATE condition. The FXL4245 is designed so that the
control pins (T/R and OE) are supplied by V
CCA
.
Features
s
Bi-directional interface between any 2 levels from
1.1V to 3.6V
s
Fully configurable, inputs track V
CC
level
s
Non-preferential power-up sequencing; either V
CC
may
be powered-up first
s
Outputs remain in 3-STATE until active V
CC
level is
reached
s
Outputs switch to 3-STATE if either V
CC
is at GND
s
Power-off protection
s
Control inputs (T/R, OE) levels are referenced to V
CCA
voltage
s
Packaged in 24-terminal MLP
s
ESD protection exceeds:
鈥?4kV HBM ESD
(per JESD22-A114 & Mil Std 883e 3015.7)
鈥?8kV HBM I/O to GND ESD
(per JESD22-A114 & Mil Std 883e 3015.7)
鈥?1kV CDM ESD (per ESD STM 5.3)
鈥?200V MM ESD (per JESD22-A115 & ESD STM5.2)
Ordering Code:
Order Number
FXL4245MPX
Package Number
MLP024B
Package Description
24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mm
漏 2004 Fairchild Semiconductor Corporation
DS500867
www.fairchildsemi.com