PI74LVC3245ALE Pericom Semiconductor, PI74LVC3245ALE Datasheet
PI74LVC3245ALE
Manufacturer Part Number
PI74LVC3245ALE
Description
IC BUS TRXRX TRI-ST 8BIT 24TSSOP
Manufacturer
Pericom Semiconductor
Series
74LVCr
Datasheet
1.PI74LVC3245A.pdf
(9 pages)
Specifications of PI74LVC3245ALE
Logic Function
Translator, 3-State
Number Of Bits
8
Input Type
TTL
Output Type
CMOS
Number Of Channels
8
Number Of Outputs/channel
1
Differential - Input:output
No/No
Propagation Delay (max)
6.3ns
Voltage - Supply
2.7 V ~ 3.6 V, 4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Supply Voltage
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Rate
-
Product Features
• 2.7V to 3.6V on A-port and 4.5V to 5.5V on B-port
• TTL Compatible Inputs
• Latch-up performance exceeds 200mA Per JESD78
• ESD protection exceeds JESD22
• Industrial Temperature: –40°C to +85°C
• Packages (Pb-free availiable):
Logic Block Diagram
Truth Table
Note:
1. H = High Signal Level
X = Don’t Care or Irrelevant
- 24-pin 173-mil wide plastic TSSOP (L)
- 24-pin 150-mil wide plastic QSOP (Q)
- 24-pin 300-mil wide plastic SOIC (S)
2000V Human-Body Model (A114-B)
200V Machine Model (A115-A)
(Pb-free & Green available)
OE
H
L
L
DIR
(1)
Inputs
A
A
A
A
A
A
A
A
1
2
3
4
5
6
7
8
10
3
4
6
5
7
2
8
9
DIR
H
X
L
L = Low Signal Level
Z = High Impedance
18
19
22
20
17
16
21
15
14
Bus B Data to Bus A
Bus A Data to Bus B
B
B
B
B
B
B
B
B
OE
1
2
3
4
5
6
7
8
Z (Isolation)
Outputs
1
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 PI74LVC3245A is a non-inverting 8-bit Bidirectional Trans-
ceiver that uses two seperate power supply rails. A-port (V
is set to operate at 3.3V and B-port (V
This allows for translation from a 3.3V to a 5V environment 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.
Product Pin Configuration
Product Pin Description
Pin Name
OE
DIR
Ax
Bx
NC
GND
V
CCA
,V
CCB
(3.3V) V
8-Bit Dual Supply Bus Transceiver
GND
GND
CCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
Description
3-State Output Enable Inputs (Active LOW)
Direction Control Input
Side A Inputs or 3-State Outputs
Side B Inputs or 3-State Outputs
NO Internal Connect
Ground
Power
1
2
3
4
5
6
7
8
9
10
11
12
with 3-State Outputs
24
23
22
21
20
19
18
17
16
15
14
13
CCB
PI74LVC3245A
) is set to operate at 5V.
V
NC
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
CCB
PS8699A
(5V)
09/10/03
CCA
)
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