PI74LPT2Q245Q Pericom Semiconductor, PI74LPT2Q245Q Datasheet
PI74LPT2Q245Q
Manufacturer Part Number
PI74LPT2Q245Q
Description
Manufacturer
Pericom Semiconductor
Datasheet
1.PI74LPT2Q245Q.pdf
(4 pages)
Specifications of PI74LPT2Q245Q
Logic Family
LPT
Operating Supply Voltage (typ)
3.3V
Propagation Delay Time
8.5ns
Number Of Elements
1
Number Of Channels
8
Output Type
3-State
Package Type
QSOP
Polarity
Non-Inverting
Logical Function
Bus Transceiver
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
3.6V
Quiescent Current (typ)
100nA
Technology
CMOS
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Product Features
• Compatible with LCX™ and LVT™ families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
• 33 Series Resistors on all outputs
• Low ground bounce outputs
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
Logic Block Diagram
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
Balanced drives (12 mA sink and source)
– 20-pin 173 mil wide plastic TSSOP (L)
– 20-pin 150 mil wide plastic QSOP (Q)
– 20-pin 150 mil wide plastic TQSOP (R)
– 20-pin 300 mil wide plastic SOIC (S)
T/R
A
A
A
A
A
1
A
A
A
0
1
2
3
4
6
7
5
OE
B
B
B
B
B
B
B
B
0
1
2
3
4
5
6
7
Product Pin Configuration
Truth Table
Note:
1. H = High Voltage Level, X = Don't Care,
L = Low Voltage Level, Z = High Impedance
O
L
L
H
E
n I
p
u
1
s t
Product Description
Pericom Semiconductor’s PI74LPT series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology
achieving high speed while maintaining low power operation.
The PI74LPT2Q245 is an 8-bit bidirectional transceiver designed
for asynchronous two-way communication between data buses.
The transmit/receive input pin (T/R) determines the direction of
data flow through the bidirectional transceiver. Transmit (active
HIGH) enables data from A ports to B ports, and receive (active
LOW) from B ports to A ports. The Output Enable (OE) input, when
HIGH, disables both A and B ports by placing them in HIGH Z
condition.
The PI74LPT2Q245 can be driven from either 3.3V or 5.0V devices
allowing this device to be used as a translator in a mixed 3.3V/5.0V
system.
(
20-PIN
) 1
(1)
Q20
R20
T
L20
S20
H
X
L
R /
B
B
s u
s u
i H
B
A
O
h g
D
D
u
a
p t
a
a t
S
a t
u
a t
o t
s t
o t
e t
(
) 1
B
B
Z
Product Pin Description
s u
s u
P
n i
A
B
A
B
G
V
T
OE
0
0
N
N
R /
A -
B -
CC
a
D
m
7
7
e
D
3
n I
D
i S
3
i S
3
r G
o P
S -
S -
S -
s e
e r i
e d
e d
u p
u o
w
a t
a t
a t
r c
i t c
r e
s t
d n
e t
A
e t
B
e t
p i
A (
n o
n I
O
n I
O
O
i t
u
t u
t u
n o
i t c
u p
u p
C
p t
u p
u p
o
e v
s t
s t
t u
t n
s t
s t
r o
r o
o r
PS8097 03/25/97
L
E
O
n
I l
b a
W
p n
e l
)
t u
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PI74LPT2Q245Q Summary of contents
Page 1
... A 7 Product Description Pericom Semiconductor’s PI74LPT series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology achieving high speed while maintaining low power operation. The PI74LPT2Q245 is an 8-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. ...
Page 2
...
Page 3
...
Page 4
... BIDIRECTIONAL TRANSCEIVER (1) LPT2Q245 Com. (2) (3) Conditions Min. Max. Min 1.5 7 500 L 1.5 8.5 1.5 7.5 1.5 8.5 1.5 7.5 0.5 Pericom Semiconductor Corporation 4 PI74LPT2Q245 LPT2Q245A Com. (3) Max. 1.5 4.6 ns 1.5 6.2 ns 1.5 5.0 ns 1.5 6.2 ns 1.5 5.0 ns 0.5 ns PS8097 03/25/97 ...