PI4ULS3V08 Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – 1.2V to 3.6V Universal Bidirectional Level Shifter with Automatic Direction Control

PI4ULS3V08
1.2V to 3.6V Universal Bidirectional
Level Shifter with Automatic Direction Control
Features
• PI4ULS3V08 is designed for low voltage operation:
1.2V to 3.6V
• Universal bidirectional level shifting with automatic direction
control
• Fast bus speeds up to 180 Mbps
• Drive Capability 12mA
• Independent translation of each bit
• Each supply rail is configurable over supply range
• ESD Protection exceeds JESD22
– 2000V Human Body Model (A114-B)
– 200V Machine Model (A115-A)
• Latch-up performance exceeds 100mA per JESD 78
• Industrial operation at –40°C to +85°C
• Packaging (Pb-free & Green): 36-contact TQFN (ZF36)
Applications
• Voltage Translation
• Bus Relay
Description
PI4ULS3V08, is a 8-bit (octal) non-inverting bus
transceiver with two separate supply rails: A port (V_CCA)
and B port (V_CCB) are set to operate at 1.2V to 3.6V. This
arrangement permits universal bidirectional translation of
differential signal levels over the voltage ranges.
The PI4ULS3V08 is designed for asynchronous communication
between data buses. Data is transmitted from the A bus to the B
bus, or vice versa, without direction control. All A_X, and B_X are
tri-stated when data is coming from both directions at the same
time. The output-enable (OE) input is used to disable outputs so
buses are isolated.
The control pins, _xSEL, OEx, TEST_EN and OUT_SEL are
supplied by V_CCB.
To ensure the high impedance state during power-up or power-
down, the output-enable (OE) input should be tied to V_CC through
a pullup resistor: the minimum value of the resistor is determined
by the current-sinking capability of the driver.
Pin Configuration
B2
1
VCCB
2
B3
3
B4
4
GND
5
B5
6
B6
7
VCCB
8
B7
9
B8
10
28
A2
27
VCCA
26
A3
25
A4
24
GND
23
A5
22
A6
21
VCCA
20
A7
19
A8
08-0139
1
PS8773H
06/13/08