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Pericom Semiconductor Corporation

PI74LVTC245 Datasheet Preview

PI74LVTC245 Datasheet

3.3V 8 BIT BIDIRECTIOANAL TRANCEIVER WITH 3 STATE OUTPUTS

No Preview Available !

PI74LVTC245111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222
3.3V 8-Bit Bi-Directional Transceiver
with 3-State Outputs
Product Features
Advanced low power CMOS design for 2.7V to 3.6V
VCC operation
Supports 5V input/output tolerance in mixed signal mode
operation
Function compatible with LVT family of products
Balanced ±24mA output drive
Typical VOLP (Output Ground Bounce) <0.8V at VCC=3.3V,
TA=25°C
Ioff and Power Up/Down 3-State support live insertion
Latch-up performance exceeds 200mA Per JESD78
ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-B)
- 200V Machine Model (A115-A)
Packages (Pb-free available):
- 20-pin 209-mil wide plastic SSOP (H)
- 20-pin 173-mil wide plastic TSSOP (L)
20-pin 300-mil wide plastic SOIC (S)
Logic Block Diagram
DIR
A0
A1
A2
A3
A4
A5
A6
A7
OE
B0
B1
B2
B3
B4
B5
B6
B7
Product Description
Pericom Semiconductor’s PI74LVTC series of logic circuits are
produced using the Company’s advanced CMOS technology, achiev-
ing industry leading speed.
The PI74LVTC245 is a non-inverting 8-bit Bidirectional Transceiver
designed for low-voltage 2.7V to 3.6V VCC operation, with the
capability of interfacing to the 5V system environment. This tranceiver
is designed for asynchronous two-way communication between
data buses. The direction control input pin (DIR) determines the
direction of 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 condition.
When Vcc is between 0 to 1.5V during power up or power down, the
outputs of the device are in the high-impedance state. To ensure the
high-impedance state above 1.5V, OE should be tied to VCC through
a pullup resistor; the minimum value of the resistor is determined by
the current sinking capability of the driver.
The device fully supports live-insertion with its Ioff and power-up/
down 3-state. The Ioff circuitry disables the outputs when the power
is off, preventing the backflow of damaging current through
the device. Power-up/down 3-state places the outputs in the
high-impedance state during power up or power down, preventing
driver conflict.
Product Pin Configuration
DIR
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5 20-Pin
6 H, L, S
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VCC
OE
B0
B1
B2
B3
B4
B5
B6
B7
1
PS8691
07/01/03




Pericom Semiconductor Corporation

PI74LVTC245 Datasheet Preview

PI74LVTC245 Datasheet

3.3V 8 BIT BIDIRECTIOANAL TRANCEIVER WITH 3 STATE OUTPUTS

No Preview Available !

PI74LVTC245
3.3V, 8-Bit Bi-Directional Tranceiver
with 3-State Outputs1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Maximum Ratings
(Above which the useful life may be impaired.
For user guidelines, not tested.)
Supply voltage range, VCC ............................... –0.5Vto+6.5V
Input voltage range, VI(1) ................................. –0.5Vto+6.5V
Voltage range applied to any output in the
high-impedance or power-off state, VO(1) ........ –0.5Vto+6.5V
Voltage range applied to any output in the
active state, VO(1),(2) ................................. –0.5V to VCC+0.5V
Input clamp current, IIK (VI <0) ..................................... –50mA
Output clamp current, IOK (VO <0) ............................... –50mA
Continous Output Current IO ....................................... ±50mA
Continous Current through each VCC or GND pin ............... ±100mA
Package thermal impedance, θJA(3):package H ............ 81°C/W
package L ............. 84°C/W
package S ............. 84°C/W
Storage Temperature range, Tstg ..................... –65°C to 150°C
Product Pin Description
Pin Name
Description
OE 3-State Output Enable Inputs (Active LOW)
DIR Direction Control Input
xAx Side A Inputs or 3-State Outputs
xBx Side B Inputs or 3-State Outputs
GND
Ground
VCC Power
Notes:
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.
1. Input negative-voltage and output voltage ratings may be exceeded if the
input and output clamp current ratings are observed.
2. This value is limited to 6.5 maximum
3. The package thermal impedance is calculated in accordance with JESD 51.
Truth Table(4)
Inputs
OE
L
L
H
DIR
L
H
X
Notes:
4. H = High Signal Level
L = Low Signal Level
X = Don’t Care or Irrelevant
Z = High Impedance
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
Z
2
PS8691
07/01/03


Part Number PI74LVTC245
Description 3.3V 8 BIT BIDIRECTIOANAL TRANCEIVER WITH 3 STATE OUTPUTS
Maker Pericom Semiconductor Corporation
Total Page 8 Pages
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