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ST1G3234_0508 Datasheet

  • ST1G3234_0508

  • 1-bit dual supply bus buffer level translator with A-side se...

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  • STMICROELECTRONICS   STMICROELECTRONICS

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ST1G3234
1-bit dual supply bus buffer level translator
with A-side series resistor
Features
鈻?/div>
鈻?/div>
鈻?/div>
High speed: t
PD
= 4.4ns (Max.) at T
A
= 85擄C
V
CCB
= 1.65V; V
CCA
= 3.0V
Low power dissipation:
I
CCA
= I
CCB
= 5碌A(Max.) at T
A
= 85擄C
Symmetrical output impedance:
|I
OHA
| = I
OLA
= 10mA Min at
V
CCA
= 2.75V; V
CCB
= 1.4V to 3.6V
|I
OHA
| = I
OLA
= 6mA Min at
V
CCA
= 2.3V; V
CCB
= 1.4V to 3.6V
Balanced propagation delays:
t
PLH
鈮?/div>
t
PHL
Power down protection on inputs and outputs
26鈩?series resistor on A-side outputs
鈥?Operating voltage range:
V
CCA
(Opr) = 1.4V to 3.6V (1.2V data
retent)
V
CCB
(Opr) = 1.4V to 3.6V (1.2V data
retent)
Max data rates:
380Mbps (1.8V to 3.3V translation)
260Mbps (<1.8V to 3.3V translation)
260Mbps (translate to 2.5V)
210Mbps (translate to 1.5V)
Latch-up performance exceeds 500mA
(JESD 17)
ESD performance:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
R
O
HS compliant for Flip-Chip package
Flip-Chip 5
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鈻?/div>
Description
The ST1G3234 is a dual supply low voltage
CMOS 1-Bit bus buffer level translator fabricated
with sub-micron silicon gate and five-layer metal
wiring C
2
MOS technology. Designed for use as an
interface between a 3.3V bus and a 2.5V or 1.8V
bus in a mixed 3.3V/1.8V, 3.3V/2.5V, 1.8V/1.4V
and 2.5V/1.8V supply systems, it achieves high
speed operation while maintaining the CMOS low
power dissipation.
This IC is intended for one-way asynchronous
communication between data buses. The input
and output power down protections disable the
device when both power supply are down, so that
the buses are effectively isolated.
The input tolerant buffers allow to translate V
CCB
compatible signals and greater signals than V
CCB
up/down to V
CCA
.
All inputs are equipped with protection circuits
against static discharge, giving them ESD
immunity and transient excess voltage.
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Order codes
Part number
ST1G3234BJR
Package
Flip-Chip 5
Comments
4000 parts per reel
August 2006
Rev 6
1/15
www.st.com
15

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