ETC PI74LCX543Q

PI74LCX543
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Fast CMOS 3.3V 8-Bit Latched Transceiver
Product Features
Product Description
• Functionally compatible with FCT3, LVT, and 74
series 543 families of products
• Tri-State outputs
• 5V Tolerant inputs and outputs
• 2.0V-3.6V VCC supply operation
• Balanced sink and source output drives (24 mA)
• Low ground bounce outputs
• Supports live insertion
• ESD Protection exceeds 2000V, Human Body Model
200V, Machine Model
• Packages available:
– 24-pin 209-mil wide plastic SSOP (H)
– 24-pin 173-mil wide plastic TSSOP (L)
– 24-pin 150-mil wide plastic QSOP (Q)
– 24-pin 300-mil wide plastic SOIC (S)
Pericom Semiconductor’s PI74LCX series of logic circuits are produced using the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74LCX543 is an 8-bit wide non-inverting transceiver designed
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 (CEAB) input must be LOW in order to enter data
from A0–A7 or to take data from B0–B7, as indicated in the Truth
Table. With CEAB LOW, a LOW signal makes the A-to-B latches
transparent; a subsequent LOW-to-HIGH transition of the LEAB
signal puts the A latches in the storage mode and their outputs no
longer change the A inputs. With CEAB and OEAB both LOW, the
3-state B output buffers are active and reflect the data present at the
output of the A latches. Control of data from B to A is similar, but
uses the CEAB, LEAB, and OEAB inputs.
The PI74LCX543 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.
Logic Block Diagram
D
Q
B0
LE
A0
Q
D
LE
A1
B1
A2
B2
A3
A4
B3
DETAIL A x 7
B4
A5
B5
A6
B6
A7
B7
OEBA
OEAB
CEBA
CEAB
LEBA
LEAB
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PS2102A 02/25/97
PI74LCX543
3.3V
8-BIT
LATCHED
TRANSCEIVER
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Product Pin Configuration
LEBA
OEBA
A0
A1
A2
A3
A4
A5
A6
A7
CEAB
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
24-PIN 21
H24 20
L24 19
Q24 18
S24 17
16
15
14
13
Product Pin Description
Pin Name
OEAB
OEBA
CEAB
CEBA
LEAB
LEBA
A0-A7
B0-B7
GND
VCC
VCC
CEBA
B0
B1
B2
B3
B4
B5
B6
B7
LEAB
OEAB
Description
A-to-B Output Enable Input (Active LOW)
B-to-A Output Enable Input (Active LOW)
A-to-B Enable Input (Active LOW)
B-to-A Enable Input (Active LOW)
A-to-B Latch Enable Input (Active LOW)
B-to-A Latch Enable Input (Active LOW)
A-to-B Data Inputs or B-to-A 3-State Outputs
B-to-A Data Inputs or A-to-B 3-State Outputs
Ground
Power
Truth Table (Non-Inverting)(1,2)
For A-to-B (Symmetric with B-to-A)
1.
2.
OEAB
Latch
Status
A-to-B
Output
Buffers
B0–B7
X
X
Storing
High-Z
X
H
X
Storing

X
X
H

High Z
L
L
L
Transparent
Current A Inputs
L
H
L
Storing
Previous* A Inputs
CEAB
Inputs
LEAB
H
*Before LEAB LOW-to-HIGH Transition
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care or Irrevelant
A-to-B data flow shown; B-to-A flow control is the same,
except using CEBA, LEBA, and OEBA.
2
PS2102A
02/25/97
PI74LCX543
3.3V
8-BIT
LATCHED
TRANSCEIVER
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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
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.
Recommended Operating Conditions
Symbol
VCC
Parameter
Supply Voltage
VI
Input Voltage
VO
Output Voltage
IOH/IOL
TA
∆t/∆V
Output Current
Min.
Max.
Operating
2.0
3.6
Data Retention
1.5
3.6
0
5.5
HIGH or LOW State
0
VCC
TRI-State
0
5.5
VCC = 3.0V-3.6V

±24
VCC = 2.7V

±12
−40
+85
°C
0
10
ns/V
Free-Air Operating Temperature
Input Edge Rate
V = 0.8V-2.0V, VCC = 3.0V
3
Units
V
mA
PS2102A
02/25/97
PI74LCX543
3.3V
8-BIT
LATCHED
TRANSCEIVER
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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.
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
—
—
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
—
—
0.8
VOH
Output HIGH Voltage
VCC = 2.7-3.6
IOH = –0.1mA
VCC-0.2
—
—
VCC = 2.7
IOH = –12mA
2.2
—
—
VCC = 3.0
IOH = –18mA
2.4
—
—
IOH = –24mA
2.2
—
—
VCC = 2.7-3.6
IOL = 0.1mA
—
—
0.2
VCC = 2.7
IOL = 12mA
—
—
0.4
VCC = 3.0
IOL = 16mA
—
—
0.4
IOL = 24mA
—
—
0.55
—
−0.7
−1.2
VOL
Output LOW Voltage
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
II
Input Leakage Current
0 ≤ VI ≤ 5.5V
Vcc = 2.7-3.6
—
—
±5
IOZ
Tri-State Output Leakage
0 ≤ VO ≤ 5.5V
VI = VIH or VIL
VCC = 2.7-3.6
—
—
±5
IOFF
Power Down Disable
VCC = 0V, VIN or VOUT ≤ 5.5V
—
—
10
ICC
Quiescent Power Supply
Current
VCC = Max.
VIN = GND or VCC

0.1
10
∆ICC
Quiescent Power Supply
Current
TTL Inputs HIGH
VCC = Max.
VIN = VCC – 0.6V(3)


500
Units
V
µA
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.
3. Per TTL driven input; all other inputs at VCC or GND.
Capacitance
Parameters Description
Test Conditions
Typ.
Input Capacitance
VCC = Open, VI = 0V or VCC
7
COUT
Output Capacitance
VCC = 3.3V, VI = 0V or VCC
8
CPD
Power Dissipation Capacitance
VCC = 3.3V, VI = 0V or VCC, F = 10 MHz
25
CIN
4
PS2102A
Units
pF
02/25/97
PI74LCX543
3.3V
8-BIT
LATCHED
TRANSCEIVER
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Switching Characteristics over Operating Range
Parameters
Description
Conditions
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
Propagation Delay Transparent
Mode AN to BN or BN to AN
Propagation Delay
LEBA to AN, LEAB to BN
Output Enable Time
OEBA or OEAB to AN or BN
CEBA or CEAB to AN or BN
Output Disable Time(3)
OEBA or OEAB to AN or BN
CEBA or CEAB to AN or BN
Setup Time, HIGH or LOW
AN or BN to LEBA or LEAB
Hold Time, HIGH or LOW
AN or BN to LEBA or LEAB
LEBA or LEAB Pulse Width LOW(3)
Output Skew(1)
CL = 50 pF
RL = 500Ω
tPZH
tPZL
tSU
tH
tW
tsk(o)
VCC = 3.3V ± 0.3V
Min.
Max.
VCC = 2.7V
Min.
Max.
1.5
7.0
1.5
8.0
1.5
8.5
1.5
9.5
1.5
9.0
1.5
10.0
1.5
7.0
1.5
7.5
2.5
—
2.5
—
1.5
—
1.5
—
3.3
—
—
1.0
3.3
—
—
—
Units
ns
Note:
1. Skew between any two outputs, of the same package, switching in the same direction.
Dynamic Switching Characteristics (TA = +25°C)
Parameters
VOLP
VOLV
Description
Dynamic LOW Peak Voltage
Dynamic LOW Valley Voltage
Test Conditions(1)
VCC = 3.3V, CL = 50pF
VIH = 3.3V, VIL = 0V
VCC = 3.3V, CL = 50pF
VIH = 3.3V, VIL = 0V
Typ.
0.8
Units
V
0.8
V
Note:
1. Measured with n–1 outputs switching from High-to-Low or Low-to-High. The remaining output is
measured in the LOW state.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
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PS2102A
02/25/97