STMICROELECTRONICS ST4G3235BJR

ST4G3235
4-bit dual supply bus buffer level translator
with a side series resistor
Features
■
High speed: tPD = 4.3ns (Max.) at TA = 85°C
VCCB = 1.65V; VCCA = 3.0V
■
Low power dissipation:
ICCA = ICCB = 5µA(Max.) at TA=85°C
■
Symmetrical output impedance:
|IOHA| = IOLA = 10mA Min at
VCCA = 2.75V; VCCB = 1.4V to 3.6V
|IOHB| = IOLB = 4mA Min at
VCCB = 1.65V; VCCA = 1.4 to 3.6V)
Flip-Chip11
■
Balanced propagation delays:
tPLH ≅ tPHL
Description
■
Power down protection on inputs and outputs
■
26Ω series resistor on a side outputs
■
Operating voltage range:
VCCA(Opr) = 1.4V to 3.6V
VCCB(Opr) = 1.4V to 3.6V
■
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)
The ST4G3235 is a dual supply low voltage
CMOS 4-bit bus buffer level translator 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 1.8V
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.
■
Latch-up performance exceeds 500mA
(JESD 17)
■
ESD performance:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
■
ROHS compliant for Flip-Chip package
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 VCCB
compatible signals and greater signals than VCCB
up/down to VCCA and viceversa.
All inputs are equipped with protection circuits
against static discharge, giving them ESD
immunity and transient excess voltage.
Table 1. Device summary
June 2007
Part number
Package
Packaging
ST4G3235BJR
Flip-Chip11
4000 parts per reel
Rev 7
1/21
www.st.com
21
Contents
ST4G3235
Contents
1
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2/21
ST4G3235
Pin settings
1
Pin settings
1.1
Pin connection
Figure 1.
1.2
Pin connection (top through view)
Pin description
Table 2. Pin description
Pin N°
Symbol
Name and function
A1
A4
Data input (VCCA referred)
A3
A3
Data input (VCCA referred)
A5
A2
Data output (VCCA referred)
A7
A1
Data output (VCCA referred)
C1
B4
Data output (VCCB referred)
C3
B3
Data output (VCCB referred)
C5
B2
Data input (VCCB referred)
C7
B1
Data input (VCCB referred)
B2
GND
Ground (0V)
B6
VCCA
Positive supply voltage
B4
VCCB
Positivsoltage
3/21
Device summary
2
ST4G3235
Device summary
Figure 2.
Input equivalent circuit
Figure 3.
Logic diagram
Table 3. Truth table
Inputs Bn (VCCB Referred)
Outputs An (VCCA Referred)
L
L
H
H
Inputs An (VCCB Referred)
Outputs Bn (VCCA Referred)
L
L
H
H
n = 1..2
n = 3..4
4/21
ST4G3235
3
Maximum rating
Maximum rating
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4. Absolute maximum ratings
Symbol
Parameter
VCCA
Output supply voltage
VCCB
Input supply voltage
Value
Unit
-0.5 to +4.6
V
-0.5 to VCCA + 0.5
V
VO
DC output voltage (Power down mode:
VCCA=VCCB=Gnd)
-0.5 to +4.6
V
VI
DC Input Voltage (Power down mode:
VCCA=VCCB=Gnd)
-0.5 to +4.6
V
VOA
DC output voltage (A1, A2 Outputs)
-0.5 to VCCA + 0.5
V
VOB
DC output voltage (B3, B4 Outputs)
-0.5 to VCCA + 0.5
V
VIA
DC input voltage (A3, A4 Inputs)
-0.5 to +4.6
V
VIB
DC input voltage (B1, B2 Inputs)
-0.5 to +4.6
V
IIK
DC input diode Current
− 20
mA
IOK
DC output diode current
− 50
mA
IOA
DC output current
± 50
mA
ICCA
DC VCCA or ground current
± 100
mA
ICCB
DC VCCB or ground current
± 100
mA
400
mW
-65 to +150
°C
260
°C
Pd
Power dissipation
Tstg
Storage temperature
TL
Lead temperature (10 sec)
5/21
Maximum rating
3.1
ST4G3235
Recommended operating conditions
Table 5. Recommended operating conditions
Symbol
Parameter
Unit
VCCA
Supply voltage
1.4 to 3.6
V
VCCB
Supply voltage
1.4 to 3.6
V
VIB
Input voltage (B1, B2)
0 to VCCB
V
VIA
Input voltage (A3, A4)
0 to VCCA
V
VOB
Output voltage (B3, B4)
0 to VCCB
V
VOA
Output voltage (A1, A2)
0 to VCCA
V
Top
Operating temperature
-40 to 85
°C
VCCB = 3.0 to 3.6V
0 to 10
ns/V
VCCB = 2.3 to 2.7V
0 to 20
ns/V
VCCB = 1.4 to 1.95V
0 to 100
ns/V
dt/dv
Input rise and fall time (1)
1. VI from 0.8V to 2.0V at VCC = 3.0V
6/21
Value
ST4G3235
4
Electrical characteristics
Electrical characteristics
Table 6. DC Specification for VCCA
Test condition
Symbol
VIHA
VILA
VOHA
VOLA
IIA
Parameter
High level
input voltage
(A3-A4)
Low level
input voltage
(A3-A4)
TA = 25 °C
-40 to 85 °C
VCCB
VCCA
(V)(1)
(V)(1)
Min.
1.4
0.65VCCA
0.65VCCA
1.8
0.65VCCA
0.65VCCA
2.5
1.6
1.6
3.3
2.0
2.0
1.4 to
3.6V
1.4 to
3.6V
Typ.
Max.
Min.
Unit
Max.
V
1.4
0.35VCCA
0.35VCCA
1.8
0.35VCCA
0.35VCCA
2.5
0.7
0.7
3.3
0.8
0.8
V
1.4
IO=-100µA
1.2
1.2
2.75
IO=-0.4mA
2.5
2.5
2.75
IO=-10mA
2.2
2.2
2.3
IO=-6mA
1.8
1.8
1.65
IO=-2mA
1.4
1.4
1.4
IO=-1mA
1.1
1.1
1.4
IO=100µA
0.20
0.20
2.75
IO=1mA
0.40
0.40
2.75
IO=10mA
0.55
0.55
2.3
IO=6mA
0.40
0.40
1.65
IO=2mA
0.25
0.25
1.4
IO=1mA
0.20
0.20
2.7
3.6
VIA=VCCA
or GND
± 0.5
±5
µA
1.4
2.7
VIA=3.6V
or GND
± 0.5
±5
µA
High level
1.4 to
output voltage
3.6V
(A1-A2)
Low level
1.4 to
output voltage
3.6V
(A1-A2)
Input leakage
current
(A3-A4)
Value
V
V
7/21
Electrical characteristics
ST4G3235
Table 6. DC Specification for VCCA
Test condition
Symbol
Parameter
VCCB
VCCA
(1)
(1)
(V)
IOFF
ICCtA
∆ICCtA
Power off
leakage
current
0
Quiescent
1.4 to
supply current 3.6V
Maximum
quiescent
supply current
/ Input (An)
(V)
Min.
Typ.
-40 to 85 °C
Max.
Min.
Unit
Max.
0
± 1.0
± 10
µA
1.4 to
3.6V
VIA =VCCA
or GND
VIB =VCCB
or GND
0.5
5
µA
0.75
mA
3.6
1.95
3.6
2.7
1. VCC range = 3.3±0.3; 2.5±0.2V; 1.8±0.15V
8/21
TA = 25 °C
VIB=GND
to 3.6V
VOA=GND
to 3.6V
VIA=GND
to 3.6V
VOB=GND
to 3.6V
2.7
1.95
Value
VIA =VCCA
- 0.6V
VIA =VCCA
or GND
VIB =VCCB
or GND
ST4G3235
Electrical characteristics
Table 7. DC Specification for VCCB
Test condition
Symbol
Parameter
VCCB
VCCA
(1)
(1)
(V)
(V)
TA = 25 °C
Min.
1.4
VIHB
High level
input voltage
(B1-B2)
1.8
2.5
Value
1.4 to
3.6V
3.3
Low level
input voltage
(B1-B2)
1.8
2.5
VOHB
VOLB
IIB
Low level
output
voltage (B3B4)
Input leakage
current (B1B2)
Min.
0.65VCCB
0.65VCCB
0.65VCCB
1.6
1.6
2.0
2.0
1.4 to
3.6V
3.3
High level
output
voltage (B3B4)
Max.
0.65VCCB
1.4
VILB
Typ.
-40 to 85 °C
Max.
V
0.35VCCB
0.35VCCB
0.35VCCB
0.35VCCB
0.7
0.7
0.8
0.8
1.4
IO=-100µA
1.3
1.3
1.8
IO=-100µA
1.6
1.6
2.75
IO=-24mA
2.2
2.2
IO=-18mA
1.7
1.7
2.3
IO=-4mA
1.44
1.44
1.65
IO=-4mA
1.5
1.5
1.4
IO=-2mA
1.25
1.25
1.4
IO=100µA
0.1
0.1
1.8
IO=100µA
0.2
0.2
IO=24mA
0.55
0.55
IO=18mA
0.35
0.35
2.3
IO=4mA
0.39
0.39
1.65
IO=4mA
0.20
0.20
1.4
IO=2mA
0.15
0.15
2.75
1.4 to
3.6V
2.75
2.75
1.4 to
3.6V
Unit
V
V
V
2.7
3.6
VIB=VCCB or
GND
± 0.5
±5
µA
1.4
2.7
VIB=3.6V or
GND
± 0.5
±5
µA
9/21
Electrical characteristics
ST4G3235
Table 7. DC Specification for VCCB
Test condition
Symbol
Parameter
VCCB
VCCA
(1)
(1)
(V)
IOFF
Power off
leakage
current
ICCtB
Quiescent
supply
current
∆ICCtB
Maximum
quiescent
supply
current / Input
(Bn)
(V)
TA = 25 °C
Min.
Typ.
-40 to 85 °C
Max.
Min.
Unit
Max.
0
VIB=GND to
3.6V
VOA=GND to
3.6V
VIA=GND to
3.6V
VOB=GND to
3.6V
± 1.0
± 10
µA
1.4 to
3.6V
1.4 to
3.6V
VIA =VCCA or
GND
VIB =VCCB or
GND
0.5
5
µA
2.7
3.6
1.95
3.6
0.75
mA
0
1.95
2.7
1. VCC range = 3.3±0.3; 2.5±0.2V; 1.8±0.15V
10/21
Value
VIB =VCCB 0.6V
VIB =VCCB or
GND
VIB =VCCA or
GND
ST4G3235
Electrical characteristics
Table 8. Dynamic switching characteristics
Test condition
Symbol
VOLPA
VOLVA
VOHVA
VOLPB
VOLVB
VOHVB
Parameter
Dynamic low level
Quiet An Output
Dynamic low level
Quiet An Output
Dynamic high level
Quiet An Output
Dynamic low level
Quiet Bn Output
Dynamic low level
Quiet Bn Output
Dynamic high level
Quiet Bn Output
Value
TA = 25 °C
VCCB
(V)
VCCA
(V)
1.4
1.8
0.2
1.4-1.8
2.5
0.25
1.8-2.5
3.3
0.35
1.4
1.8
1.4-1.8
2.5
1.8-2.5
3.3
1.4
1.8
1.6
1.4-1.8
2.5
2.1
1.8-2.5
3.3
2.7
1.4
1.8-2.5
0.2
1.8
2.5-3.3
0.25
2.5
3.3
0.6
1.4
1.8-2.5
1.8
2.5-3.3
2.5
3.3
1.4
1.8-2.5
1.2
1.8
2.5-3.3
1.4
2.5
3.3
1.9
Min.
CL = 30pF
VILB = 0V
VIHB = VCCB
CL = 30pF
VILA = 0V
VIHA = VCCA
Typ.
Max.
-40 to 85 °C
Min.
Unit
Max.
V
-0.2
-0.25
V
-0.35
V
V
-0.2
-0.25
V
-0.36
V
11/21
Electrical characteristics
ST4G3235
Table 9. AC electrical characteristics
Test condition
Symbol
tPLH tPHL
tPLH tPHL
tPLH tPHL
tPLH tPHL
Parameter
Propagation delay time Bn to An
Propagation delay time Bn to An
Propagation delay time An to Bn
Propagation delay time An to Bn
tOSLH tOSHL Output to output skew time (note1, 2)
Note:
12/21
VCCB
(V)
VCCA
(V)
2.3 to 3.6
Value
-40 to 85 °C Unit
Min.
Max.
1.4
2.0
6.5
1.4 to 1.95
1.4
2.0
6.8
2.3 to 3.6
1.65 to 1.95
2.0
5.2
1.4 to 1.95 1.65 to 1.95 CL = 10 pF
2.0
5.6
1.4 to 1.95
2.3 to 2.7
2.0
4.6
1.4 to 1.95
3.0 to 3.6
2.0
4.3
2.3 to 2.7
3.0 to 3.6
1.0
3.6
2.3 to 3.6
1.4
2.0
7.5
1.4 to 1.95
1.4
2.0
7.5
2.3 to 3.6
1.65 to 1.95
2.0
6.5
CL = 30 pF
1.4 to 1.95 1.65 to 1.95
RL = 500 Ω
1.4 to 1.95 2.3 to 2.7
2.0
6.7
2.0
5.9
1.4 to 1.95
3.0 to 3.6
2.0
5.7
2.3 to 2.7
3.0 to 3.6
1.0
4.9
2.3 to 3.6
1.4
2.0
5.5
1.4 to 1.95
1.4
2.0
6.0
2.3 to 3.6
1.65 to 1.95
2.0
5.0
1.4 to 1.95 1.65 to 1.95 CL = 10 pF
2.0
5.0
1.4 to 1.95
2.3 to 2.7
2.0
4.6
1.4 to 1.95
3.0 to 3.6
2.0
3.9
2.3 to 2.7
3.0 to 3.6
1.0
3.0
2.3 to 3.6
1.4
2.0
7.0
1.4 to 1.95
1.4
2.0
7.5
2.3 to 3.6
1.65 to 1.95
2.0
6.0
CL = 30 pF
1.4 to 1.95 1.65 to 1.95
RL = 500 Ω
1.4 to 1.95 2.3 to 2.7
2.0
6.0
2.0
5.6
1.4 to 1.95
3.0 to 3.6
2.0
4.6
2.3 to 2.7
3.0 to 3.6
1.0
4.0
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
ns
ns
ns
ns
0.5
CL = 30 pF
RL = 500 Ω
0.5
ns
0.75
1
Skew is defined as the absolute value of the difference between the actual propagation
delay for any two outputs of the same device switching in the same direction, either HIGH or
LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|
2
Parameter guaranteed by design
ST4G3235
Electrical characteristics
Table 10. Capacitance characteristics
Test condition
Symbol
Parameter
CIN
Input capacitance
CO
Output capacitance
CPD
Note:
Power dissipation capacitance
1
VCCB
(V)
VCCA
(V)
open
open
Value
TA = 25 °C
-40 to 85 °C Unit
Min. Typ. Max. Min.
1.8-2.5 2.5-3.3
6
pF
9
pF
2.5
3.3
50
1.8
3.3
28
1.4
2.5
1.4
1.8
15
3.3
1.8
28
f=10MHz
Max.
22
pF
CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated
from the operating current consumption without load. (Refer to Test Circuit). Average current
can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per circuit)
13/21
Test circuit
5
ST4G3235
Test circuit
Figure 4.
Test circuit
Table 11. Test circuit
Test
Switch
tPLH, tPHL
Open
CL = 10/30pF or equivalent (includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
14/21
ST4G3235
6
Waveforms
Waveforms
Table 12. Waveform symbol value
VCC
Symbol
Figure 5.
3.0 to 3.6V
2.3 to 2.7V
1.65 to 1.95V
VIH
VCC
VCC
VCC
VM
1.5V
VCC/2
VCC/2
VX
VOL +0.3V
VOL +0.15V
VOL +0.15V
VY
VOL -0.3V
VOL -0.15V
VOL -0.15V
Waveform - propagation delay (f=1MHz; 50% duty cycle)
15/21
Package mechanical data
7
ST4G3235
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
16/21
ST4G3235
Package mechanical data
Figure 6.
Note:
Marking
E = Eco Level; Y = Assy Year; WW = Assy Week; X = Marking Area; Marking Code 9521
17/21
Package mechanical data
ST4G3235
Table 13. Flip-Chip11 Mechical data
Dim.
mm
Min
Typ
Max
Min
Typ
Max
A
0.585
0.65
0.715
23.0
25.6
28.1
A1
0.21
0.25
0.29
8.3
9.8
11.4
A2
0.40
15.7
b
0.265
0.315
0.365
10.4
12.4
14.4
D
1.99
2.04
2.09
78.3
80.3
82.3
D1
E
1.5
1.36
E1
1.41
59.1
1.46
53.5
0.866
55.5
57.5
34.1
eD
0.2
0.25
0.30
7.9
9.8
11.8
eE
0.383
0.433
0.483
15.1
17.0
19.0
fD
0.270
10.6
fE
0.272
10.7
ccc
0.080
3.1
Figure 7.
18/21
inch
Package dimension
ST4G3235
Package mechanical data
Table 14. Flip-Chip11 tape and reel information
mm.
inch
Dim.
Min
Typ
A
Max
Min
Typ
178
C
12.8
D
20.2
N
49
13.2
Max
6.926
0.504
0.519
0.795
50
T
51
1.929
1.969
12.4
2.008
0.488
Ao
2.29
2.34
2.39
0.090
0.092
0.094
Bo
1.65
1.70
1.75
0.065
0.067
0.069
Ko
0.76
0.81
0.86
0.030
0.032
0.034
Po
3.9
4
4.1
0.153
0.157
0.161
P
3.9
4
4.1
0.153
0.157
0.161
Figure 8.
Reel dimensions
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Revision history
8
ST4G3235
Revision history
Table 15. Revision history
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Date
Revision
Changes
14-Oct-2004
1
First release.
26-Oct-2004
2
Mechanical Data has been updated.
11-Feb-2005
3
Add Tape & Reel and Figure 6.
18-Feb-2005
4
Table 1 has been updated from 4000 to 5000 parts per Reel.
30-Mar-2005
5
Add Features ==> Max Data Rates.
09-May-2005
6
Table 9 and Table 10 have been updated.
14-Jun-2007
7
Document reformatted, typo Figure 2 on page 3
ST4G3235
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