Datasheet PI74LPT162Q952A, PI74LPT162Q952V Datasheet (PERICOM)

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Product Description
Pericom Semiconductors PI74LPT series of logic circuits are produced in the Companys advanced 0.6 micron CMOS technology, achieving industry leading speed grades.
The PI74LPT162Q952 has 16-bit registered transceivers organized with two sets of eight D-type latches with separate input and output controls for each set. For data flow from A to B, for example, the A-to-B Enable (xCEAB) input must be LOW to enter data from xAx. The data present on the A port will be clocked on the B register when xCLKAB toggles from LOW-to-HIGH. The xOEAB control performs the output enable function on the B port. Control of data from B to A is similar, but uses the xCEAB, xCLKAB, and xOEAB inputs. By connecting the control pins of the two independent transceivers together, a full 16-bit operation can be achieved. The output buffers are designed with a Power-Off disable allowing live insertion of boards when used as backplane drivers.
The PI74LPT162Q952 can be driven from either 3.3V or 5.0V devices allowing this device to be used as a translator in a mixed
3.3/5.0V system.
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PI74LPT162Q952
Fast CMOS 3.3V
16-Bit Registered Transceivers
Logic Block Diagram
D
1
CLKAB
C
1
OEAB
1
CEAB
1
CLKBA
1
CEBA
1B0
TO 7 OTHER CHANNELS
D
C
1A0
1
OEBA
D
2
CLKAB
C
2
OEAB
2
CEAB
2
CLKBA
2
CEBA
2B0
TO 7 OTHER CHANNELS
D
C
2A0
2
OEBA
Product Features
 Compatible with LCX and LVT families of products  Supports 5V Tolerant Mixed Signal Mode Operation
 Input can be 3V or 5V
 Output can be 3V or connected to 5V bus  Advanced Low Power CMOS Operation  Excellent output drive capability:
Balanced drives (12mA sink and source)  25-Ohm Series resistor on outputs to reduce
overshoot and undershoot  Pin compatible with industry standard
double-density pinouts  Low ground bounce outputs  Hysteresis on all inputs  Industrial operating temperature range: 40°C to +85°C  Multiple center pins and distributed Vcc/GND pins
minimize switching noise  Packages available:
 56-pin 240 mil wide plastic TSSOP (A)
 56-pin 300 mil wide plastic SSOP (V)
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PI74LPT162Q952
3.3V 16-Bit Registered Transceivers
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Product Pin Description
Truth Table
(1,2)
Product Pin Configuration
Notes:
1. H = High Voltage Level L = Low Voltage Level X = Dont Care or Irrelevant
= LOW-to-HIGH Transition
Z = High Impedance
2. A-to-B data flow shown. B-to-A flow control is the same, except using xCEBA, xCLKBA, and xOEBA.
3. Level of B before the indicated steady-state input conditions were established.
Pin Name
Description
xOEAB A- to-B Out put Enable Inpu t (Act ive LOW)
X
OEBA B-to- A Output En able Input ( Act ive LOW)
X
CEAB A-to- B Clock Enab le Input (Act ive LOW)
xCEBA B-to-A Clock Enab le Input (Act ive LOW)
X
CL KAB A-to - B C lo ck Inpu t
X
CLKBA B-to-A Clock Input
XAX
A-to-B Data Inputs or B-to-A 3-State Outputs
XBX
B-to-A Data Input s or B-t o-A 3-S tate Outputs
GN D Gro und
V
CC
Power
Inputs Outputs
xCEABxCLKABxOEAB xAx xBx
HXLX B
(3)
XLLX B
(3)
L
LL L
L
LH H
XXHXHigh-Z
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
33 25 26 27 28
32
31
30
29
1OEAB
1CLKAB
1CEAB
GND
1A0 1A1
VCC
1A2 1A3 1A4
1A5 1A6 1A7 2A0 2A1 2A2
GND
2A3 2A4 2A5
2A6 2A7
VCC
GND
GND
2CEAB
2CLKAB
2OEAB
1OEBA 1CLKBA 1CEBA GND 1B0 1B1 VCC 1B2 1B3 1B4
1B5 1B6 1B7 2B0 2B1 2B2
GND
2B3 2B4 2B5
2B6 2B7
VCC
GND
GND 2CEBA 2CLKBA 2OEBA
56-Pin
A,V
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PI74LPT162Q952
3.3V 16-Bit Registered Transceivers
Note:
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.
DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 2.7V to 3.6V)
Parameters Description Test Conditions
(1)
Min. Typ
(2)
Max. Units
VIH Input HIGH Voltage (Input pins) Guaranteed Logic HIGH Level 2.2 5.5 V
Input HIGH Voltage (I/O pins) 2.0 5.5 V
VIL Input LOW Voltage Guaranteed Logic LOW Level 0.5 0.8 V
(Input and I/O pins)
IIH Input HIGH Current (Input pins) VCC = Max. VIN = 5.5V ±1 µA
Input HIGH Current (I/O pins) VCC = Max. VIN = VCC ±A
IIL Input LOW Current (Input pins) VCC = Max. VIN = GND ±1 µA
Input LOW Current (I/O pins) VCC = Max. VIN = GND ±1 µA IOZH High Impedance Output Current VCC = Max. VOUT = 5.5V ±1 µ A IOZL (3-State Output pins) VCC = Max. VOUT = GND ±1 µA VIK Clamp Diode Voltage VCC = Min., IIN = 1 8m A 70 1.2 V IODH Output HIGH Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
(3)
36 110 mA
IODL Output LOW Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
(3)
25 100 mA
VOH Output HIGH Voltage VCC = Min. IOH = 12.0mA 2.4 3.0 V
VIN = VIH or VIL
VOL Output LOW Voltage VCC = Min. IOL =12.0mA 0.40 0.55 V
VIN = VIH or VIL
IOS Short Circuit Current
(4)
VCC = Max.
(3)
, VOUT ≤ GN D 60 85 240 mA
IOFF Power Down Disable VCC = 0V, VIN or VOUT  4.5V ±100 µA VH Input Hysteresis 150 mV
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 3.3V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. VOH = VCC  0.6V at rated current.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested)
Storage Temperature ............................................................... 65°C to +150°C
Ambient Temperature with Power Applied .............................. 40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) ......... 0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ......0.5V to +7.0V
DC Input Voltage .......................................................................0.5V to +7.0V
DC Output Current ................................................................................ 120 mA
Power Dissipation .................................................................................... 1.0W
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PI74LPT162Q952
3.3V 16-Bit Registered Transceivers
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Power Supply Characteristics
Parameters Description Test Conditions
(1)
Min. Typ
(2)
Max. Units
ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 µ A ICC Quiescent Power Supply Current VCC = Max. VIN = VCC  0.6V
(3)
2.0 30 µ A
TTL Inputs HIGH
ICCD Dynamic Power Supply
(4)
VCC = Max., VIN = VCC 50 75 µA/ Outputs Open VIN = GND MHz
XOE = GND
One Bit Toggling 50% Duty Cycle
IC Total Power Supply VCC = Max., VIN = VCC  0.6V 0.6 2.3 mA
Current
(6)
Outputs Open VIN = GND fI = 10 MHZ 50% Duty Cycle
XOE = GND
One Bit Toggling
VCC = Max., VIN = VCC  0.6V 2.1 4.7
(5)
Outputs Open VIN = GND fI = 2.5 MHZ 50% Duty Cycle
XOE = GND
16 Bits Toggling
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 3.3V, +25°C ambient.
3. Per TTL driven input; all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I C =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ICC D HNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz.
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PI74LPT162Q952
3.3V 16-Bit Registered Transceivers
Capacitance (TA = 25°C, F = 1 MHz)
Note:
1. This parameter is determined by device characterization but it not production tested.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
Switching Characteristics over Operating Range
(1)
LPT162Q952A LPT162Q952B LPT162Q952C
Com. Com. Com.
Parameters Description Conditions
(2)
Min.
(3)
Max. Min.
(3)
Max. Min.
(3)
Max. Units
t
PLH
Propagation Delay CL = 5 0p F 2.0 10.0 2.0 7.5 2.0 6.3 ns
t
PHL X
CLKAB, XCLKBA to XBX, XA
X
RL = 500
t
PZH
Output Enable Time 1.5 10.5 1.5 8.0 1.5 7.0 ns
t
PZL X
OEBA, XOEAB to XAX, XB
X
t
PHZ
Output Disable Time
(4)
1.5 10.0 1.5 7.5 1.5 6.5 ns
t
PLZ X
OEBA, XOEAB to XAX, XB
X
t
SU
Set-up Time HIGH or LOW 2.5 2.5 2.5 ns xAx, xBx to xCLKAB, xCLKBA
t
H
Hold Time HIGH or LOW 2.0 2.0 2.0 ns xAx, xBx to xCLKAB, xCLKBA
t
SU
Setup Time HIGH or LOW 3.0 3.0 3.0 ns xCEAB, xCEBA to xCLKAB, xCLKBA
t
H
Hold Time HIGH or LOW 2.0 2.0 2.0 ns xCEAB, xCEBA to xCLKAB, xCLKBA
t
W
Pulse Width HIGH
(4)
or 3.0 3.0 3.0 ns
LOW, xCLKAB or xCLKBA
t
SK
(o) Output Skew
(5)
0.5 0.5 0.5 ns
Notes:
1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all Propagation Delays and Enable/Disable times should be degraded by 20%.
2. See test circuit and waveforms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. This parameter is guaranteed but not production tested.
5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
sretemaraP
)1(
noitpircseDsnoitidnoCtseT.pyT.xaMstinU
C
IN
ecnaticapaCtupnIV
IN
V0=5.46
Fp
C
OUT
ecnaticapaCtuptuOV
O
tuV0=5.58
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