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PI74LVCC3245A Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation

Part No. PI74LVCC3245A
Description  8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
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Manufacturer  PERICOM [Pericom Semiconductor Corporation]
Direct Link  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI74LVCC3245A Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation

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1
PS8702A
09/10/03
Inputs
Outputs
OE
DIR
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
Z (Isolation)
Product Description
Pericom Semiconductor’s PI74LVC series of logic circuits are
produced using the Company’s advanced submicron CMOS tech-
nology, achieving industry leading speed.
The PI74LVCC3245Ais a non-inverting 8-bit Bidirectional Trans-
ceiverthatusestwoseperatepowersupplyrails.A-port(VCCA)isset
to operate at 3.3V and B-port (VCCB) is set to operate from 3.3V to
5V.This allows for translation from a 3.3Vto a 5Venvironment and
vice-versa. This tranceiver is designed for asynchronous two-way
communication between data buses.The direction control input pin
(DIR) determines the dataflow from the A bus to the B bus or from
the B bus to the A bus. The output enable (OE) input, when HIGH,
disables both A and B ports by placing them in HIGH Z condi-
tion.
8-Bit Dual Supply Bus Transceiver with
Configurable Output Voltage and 3-State Outputs
Logic Block Diagram
Product Features
• 2.7V to 3.6V on A-port and 3V to 5.5V on B-port
• Latch-up performance exceeds 200mA Per JESD78
• ESD protection exceeds JESD22
2000V Human-Body Model (A114-B)
200V Machine Model (A115-A)
• Industrial Temperature: –40°C to +85°C
• Packages (Pb-free available):
- 24-pin 173-mil wide plastic TSSOP (L)
(Pb-free & Green available)
- 24-pin 150-mil wide plastic QSOP (Q)
- 24-pin 300-mil wide plastic SOIC (S)
PI74LVCC3245A
B1
A1
OE
DIR
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
A8
2
5
3
4
8
6
7
10
9
22
19
21
20
16
18
17
14
15
Truth Table(1)
Note:
1. H = High Signal Level
L = Low Signal Level
X = Don’t Care or Irrelevant
Z = High Impedance
(3.3V) VCCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
VCCB (3.3V to 5V)
NC
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
Product Pin Description
Product Pin Configuration
Pin Name
Description
OE
3-State Output Enable Inputs (Active LOW)
DIR
Direction Control Input
Ax
Side A Inputs or 3-State Outputs
Bx
Side B Inputs or 3-State Outputs
NC
NO Internal Connect
GND
Ground
VCCA,VCCB
Power


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