PERICOM PI74STX2G4245ZEEX

PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver
with Configurable Dual Supply Voltage
Features
Description
• Operation Voltage: 1.65V ≤ VCCA ≤ 3.6V
2.3V ≤ VCCB ≤ 5.5V
VCCA ≤ VCCB
Pericom Semiconductor’s PI74STX2G4245, a 2-bit noninverting
buffer/transceiver, contains two separate supply rails:A port
(VCCA), set to operate from 1.8V to 3.3V; B port (VCCB), set
to operate from 2.5V to 5V. The A1 to B1 translation is configured as an unidirectional buffer; the translation between
A2 and B2 is bidirectional and its direction is controlled
by the DIR pin. The DIR pin is supplied by VCCB.
• High Speed: tpd = 5ns typical into 30pF @ 3V VCC
• Power down high-impedance inputs and outputs
• High output drive: ±12mA at 3V VCCA/VCCB
±24mA at 5V VCCB
• Industrial operation at –40°C to +85°C
• Packaging (Pb-free & Green available):
- 8-pin MSOP (U)
- 12-pin TDFN (ZE)
Block Diagram
DIR
A2
Pin Configuration (MSOP)
4
3
6
A1
2
B2
7
(1.8V to 3.3V)VCCA
1
8
A1
2
7
B1
A2
3
6
B2
DIR
4
5
GND
VCCB (2.5V to 5V)
B1
Pin Configuration (TDFN)
Function Table
Input
Output
DIR
DATA
L
B2
A2
H
A2
B2
NC
1
12
NC
X
A1
B1
(1.8V to 3.3V ) VCCA
2
11
VCCB (2.5V to 5V)
A1
3
10
B1
A2
4
9
B2
Pin Description
Pin Name
Description
DIR
5
8
GND
DIR
Direction Control
NC
6
7
NC
A1
Data Input
B1
Data Output
A2, B2
Data Input/Output
VCCA, VCCB
Power Supply
* NC = No Connect
1
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Maximum Ratings
(Absolute maximum ratings over operating free-air temperature range from VCCB at 2.5V & VCCA at 1.2V, unless otherwise noted)
Supply voltage range: VCCA.............................. –0.5V to +6V
VCCB .............................. –0.5V to +6V
Input Voltage Range, VI:
Input A1(2) ................... –0.5V to +6V
I/O A2(2,3) ........–0.5V to VCCA+0.5V
I/O B2(2,3) ........ –0.5V to VCCB+0.5V
Output Voltage Range, VO
Output B1(2, 3) .. –0.5V to VCCB +0.5V
DC Input Diode Current, IIK (VO <0) .......................... –50mA
DC Output Diode Current, IOK (VO <0) ....................... –50mA
DC Output Current, (IOUT) ........................................... ±50mA
DC VCC or GND Current (ICC/IGND).......................... ±100mA
Storage temperature range, TSTG .................... –65°C to 150°C
Junction Lead Temperature (IOS) ....................................260°C
Power Dissipation: MSOP ........................................... 200mW
Notes:
1. Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2. The input negative voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
3. This value is limited to 6V.
Recommended Operating Conditions for A Port ( VCCA)(1)
Parameter
VCCA
Description
Test Conditions
Supply Voltage
Min.
Max.
1.65
3.6
VCCA = 1.65V to 1.95V
0.7 x VCCA
VCCA = 2.3V to 3.6V
0.7 x VCCA
VIH
High-level input voltage
VIL
Low-level input voltage
VIA
Input Voltage
0
VCCA
VOA
Output Votage
0
VCCA
IOH
IOL
High-level Output Current
Low-level Output Current
∆t/∆V
Input transition rise or fall rate
TA
Operation free-air temperature
VCCA = 1.65 to 1.95V
0.3 x VCCA
VCCA = 2.3V to 3.6V
0.3 x VCCA
VCCA = 1.65 V to 1.95V
-4
VCCA = 2.3V to 2.7V
-8
VCCA = 3V to 3.6V
-12
VCCA = 1.65V to 1.95V
4
VCCA = 2.3V to 2.7V
8
VCCA = 3V to 3.6V
12
VCCA = 1.65V to 1.95V
20
VCCA = 2.3V to 3.6V
10
-40
Units
V
mA
ns/V
85
ºC
Note:
1. To ensure proper device operation, all unused inputs must be held at VCCA or GND.
2
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Recommended Operating Conditions for B Port ( VCCB)(1)
Paramaters
VCCB
Description
Test Conditions
Supply Voltage
Data Inputs
Max.
2.3
5.5
VIH
High-level input voltage
VIL
Low-level input voltage
VIB
Input Voltage
0
VCCB
VOB
Output Votage
0
VCCB
IOH
IOL
DIR pin
Data Inputs
DIR pin
High-level Output Current
Low-level Output Current
∆t/∆V
Input transition rise or fall rate
TA
Operation free-air temperature
VCCB = 2.3V to 5.5V
Min.
Units
0.7 x VCCB
VCCB = 2.3V to 5.5V
0.3 x VCCB
V
VCCB = 2.3 V to 2.7V
-8
VCCB = 3V to 3.6V
-12
VCCB = 4.5V to 5.5V
-24
VCCB = 2.3V to 2.7V
8
VCCB = 3V to 3.6V
12
VCCB = 4.5V to 5.5V
24
VCCB = 2.3V to 5.5V
10
m/V
85
ºC
-40
mA
Notes:
1. To ensure proper device operation, all unused inputs must be held at VCCB or GND.
3
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Electrical Characteristics (Over recommended operating free-air temperature range)
Parameters
Test Conditions
IOH = -100uA
VOHA
(B to A)
VOLA
(B to A)
VCCA(1)
VCCB(1)
1.65V to 3.6V
VCCB-0.1
IOH = -4mA
1.65V
1.3
IOH = -8mA
2.3V
IOH = -12mA
3.0V
IOH = 100uA
1.65V to 3.6V
2.3V ≤ VCCB ≤
5.5V and VCCB ≥
VCCA
0.1
0.3
IOH = 12mA
3.0V
0.4
IOH = -24mA
IOH = 100uA
0.24
2.3V to 5.5V
VCCB-0.1
2.3V
1.8
3.0V
2.4
4.5V
3.8
2.3V to 5.5V
0.1
2.3V
0.3
IOH = 12mA
3.0V
0.4
IOH = 24mA
4.5V
0.55
1.65V to 3.6V and
VCCB ≥ VCCA
2.3V to 5.5V and
VCCB ≥ VCCA
±5
VI or VO = VCCB or GND
0V
0 to 5.5V
±10
VI or VO = VCCA or GND
0 to 3.6V
0V
±10
1.65V to 3.6V and
VCCB ≥ VCCA
2.3 to 5.5V and
VCCB ≥ VCCA
IOH = 8mA
VI = VCCA/VCCB or
GND
IOFF
2.4
2.3V
1.65V ≤ VCCA ≤
3.6V and VCCB ≥
VCCA
ICCA
VI = VCCA or GND, IO
=0
ICCB
VI = VCCB or GND, IO
=0
V
µA
10
10
CI
A1, DIR
VI = VCCA or GND
1.8V
3.3V
4.5
CO
B1
Vo = VCCB or GND
1.8V
3.3V
4.5
A2, B2
VI or VO = VCCA/VCCB
or GND
1.8V
3.3V
6.0
CIO
Units
1.8
IOH = 8mA
IOH = -12mA
II(3)
Max.
1.65V
IOH = -8mA
VOLB
(A to B)
Typ.(2)
IOH = 4mA
IOH = -100uA
VOHB
(A to B)
Min.
pF
Notes:
1. When 1.65 ≤ VCCA ≤ 1.95V, VCCB can not be greater then 3.6V
2. All Typical values are at TA = 25ºC
3. For I/O ports, the paraneter II includes the output leackage current.
4
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Switching Characteristics for VCCA = 1.8V ± 0.15V
(Over recommended operating free-air temperature range, see figure 1)
Parameter
tPHL
tPLH
tPHL
tPLH
From
(Input)
To
(Output)
A
B
B
A
VCCB = 2.5V ±0.2V
VCCB = 3.3V ±0.3V
Min.
Max.
Min.
Max.
1.0
8
1.0
8
1.0
8
1.0
8
1.0
7
1.0
7
1.0
7
1.0
7
tSK(O)
1.5
Units
ns
1
Switching Characteristics for VCCA = 2.5V ± 0.2V
(Over recommended operating free-air temperature range, see figure 1)
Parameter
tPHL
tPLH
tPHL
tPLH
From
(Input)
To
(Output)
A
B
B
A
VCCB = 2.5V ±0.2V
VCCB = 3.3V ±0.3V
VCCB = 5V ±0.5V
Min.
Max.
Min.
Max.
Min.
Max.
1.0
7
1.0
6.5
1.0
6
1.0
7
1.0
6.5
1.0
6
1.0
6
1.0
6
1.0
5
1.0
6
1.0
6
1.0
5
tSK(O)
1.5
1
Units
ns
1
Switching Characteristics for VCCA = 3.3V ± 0.3V
(Over recommended operating free-air temperature range, see figure 1)
Parameter
tPHL
tPLH
tPHL
tPLH
From
(Input)
To
(Output)
A
B
B
A
VCCB = 3.3V ±0.3V
tSK(O)
Min.
Max.
Min.
Max.
1.0
5
1.0
5
1.0
5
1.0
5
1.0
5
1.0
5
1.0
5
1.0
5
1
5
VCCB = 5V ±0.5V
Units
ns
1
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
AC Loading and Waveforms
VCCA/B
1.8 ± 0.15V
2.5V ± 0.2V
3.0V to 3.6V
5V ± 0.5V
CL
15pF
15pF
30pF
50pF
tR = 3ns
RL
1KΩ
500Ω
500Ω
500Ω
tf = 3ns
Input
VCC
90%
90%
50%
50%
10%
10%
GND
tW
tPHL
VCCA/B
tPLH
VOH
Output
50%
50%
VOL
Output
Input
CL
RL
Figure 3. AC Waveforms
CL includes load and stray capacitance
Input PRR = 1.0 MHz; tW = 500ns
Figure 1. AC Test Circuit
VCC
A
Input
Output
Input = AC Waveform; tr = tf = 1.8ns;
PRR = 10 MHz; Duty Cycle = 50%
Figure 2. ICCD Test Circuit
6
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Packaging Mechanical: 8-Pin MSOP (U)
.003
.012
0.07
0.30
15˚ Max.
.003
.012
0.07
0.30
Gauge
Plane
.010
0.25
.016
.028
0.40
0.70
15˚ Max.
.037
0.95
REF
0˚- 6˚
Detail A
.112 2.85
.120 3.05
Detail A
15˚ MAX
.114 2.90
.122 3.10
15˚ MAX
.114 2.90
.122 3.10
Packaging Mechanical: 12-pin TDFN (ZE)
2.50 REF.
Pin #1
Corner
0.50 TYP.
0.20 REF.
7
PS8729C
09/27/04
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Configurable Dual Supply Voltage
Ordering Information
Ordering Code
Package Code
Package Type
Package Top Marking
PI74STX2G4245UX
U
8-pin MSOP
DE
PI74STX2G4245UEX
U
Pb-free & Green, 8-pin MSOP
DE
PI74STX2G4245ZEEX
ZE
Pb-free & Green, 12-pin TDFN
DE
Notes:
1. Thermal Characteristics can be found on the web at www.pericom.com/packaging/
2. X = Tape and Reel
3. Number of Transistors = TBD
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
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PS8729C
09/27/04