ST1G3236 Datasheet PDF - STMicroelectronics


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ST1G3236
STMicroelectronics

Part Number ST1G3236
Description 1-bit dual supply bus transceiver level translator
Page 19 Pages

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ST1G3236
1-bit dual supply bus transceiver level translator
with A-side series resistor
Features
High speed: tPD = 4.0ns (Max.) at TA = 85°C
Low power dissipation:
ICCA = ICCB = 5μA(Max.) at TA = 85°C
Balanced propagation delays:
tPLH tPHL
Power-down protection on inputs and outputs
26Ω series resistor on A-side outputs
Operating voltage range:
– VCCA(Opr) = 1.2V to 3.6V
– VCCB(Opr) = 1.2V to VCCA
Latch-up performance exceeds 100mA per
JESD 78, Class II
ESD performance exceeds JESD22
– 2000-V Human-body model (A114-A)
DFN6L
Description
The ST1G3236 is a dual supply low voltage
CMOS 1-bit bus Transceiver fabricated with sub-
micron silicon gate and five-layer metal wiring
C2MOS technology. Designed for use as an
interface between a 3.3V bus and a 2.5V or 1.2V
bus in mixed supply systems of 3.3V/1.2V,
3.3V/2.5V and 2.5V/1.8V, the ST1G3236 achieves
high speed operation while maintaining low power
dissipation. VCCA and VCCB can be powered from
1.2V to 3.6V respectively. The DIR pin is designed
to track VCCB.
The device is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR inputs.
All inputs are equipped with protection circuits
against static discharge, giving them 2kV ESD
immunity and transient excess voltage.
Table 1. Device summary
Order code
ST1G3236DTR
July 2007
Package
DFN6L (1.2x1mm)
Rev 1
Packaging
Tape and Reel
1/19
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Contents
Contents
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1 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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ST1G3236
1 Device summary
1.1 Pin settings
Figure 1. Logic diagram
GND
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DIR
B1 A1
VCCB
VCCA
Figure 2. Pin connection (top through view)
CS000101
VCCA
GND
1
2
A1 3
6 VCCB
5 DIR
4 B1
DFN6L
1.2 Pin description
Table 1.
Pin description
Pin N°
1
2
3
4
5
6
Symbol
VCCA
GND
A1
B1
DIR
VCCB
Name and function
Positive supply voltage
Ground (0V)
Data Inputs/Outputs
Data Inputs/Outputs
Directional controls
Positive supply voltage
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Pin connection
2 Pin connection
Figure 3. Input and output equivalent circuit
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VCCB / VCCA
Control Inputs
An/Bn
ESD
protection
GND GND GND
ESD
protection
GND GND GND
Overvolt.
control
Bn/An
R S = (0Ω / 26Ω)
CS157401
Table 2. Truth table
Dir input
L
H
Bus A
Output
Input
Function
Bus B
Input
Output
4/19




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