PI4ULS3V08
PI4ULS3V08 is 1.2V to 3.6V Universal Bidirectional Level Shifter manufactured by Pericom Semiconductor.
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 12m A
- 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 100m A 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 (VCCA) and B port (VCCB) 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 munication between data buses. Data is transmitted from the A bus to the B bus, or vice versa, without direction control. All AX, and BX are tri-stated when data is ing from both directions at the same time. The output-enable (OE) input is used to disable outputs so buses are isolated.
The control pins, x SEL, OEx, TEST_EN and OUT_SEL are supplied by VCCB.
To ensure the high impedance state during power-up or powerdown, the output-enable (OE) input 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.
Pin Configuration
B1 GND 1SEL TEST_EN OUT_SEL 1OE GND A1
36 35 34 33 32 31 30 29
B2 VCCB
B3 B4 GND B5 B6 VCCB B7 B8
1 2 3 4 5 6 7 8 9 10
28 A2
27 VCCA
26 A3
25 A4 24 GND
23 A5 22 A6 21 VCCA 20 A7 19 A8
GND 11 VCCB 12 2SEL 13 TSTB 14 TSTA 15 2OE 16 VCCA 17 GND 18
08-0139
PS8773H
06/13/08
Block Diagram
1SEL 2SEL OUT_SEL...