PI74AUC16244 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – 1.8V 16-Bit Buffer/Driver with 3-State Outputs

Features
• PI74AUC16244 is designed for low-voltage operation,
V_CC = 0.8V to 2.7V, optimized at 1.8V.
• 3.6V I/O Tolerant inputs and outputs
• I_OFF supports partial power-down operation
• Latch-Up Performance exceeds 100mA per JESD 78
• ESD Protection Exceeds JESD 22
– 2000V Human-Body Model (A114-B)
– 200V Machine Model (A115-A)
• Industrial operation: –40°C to +85°C
• Packaging:
– 48-pin TSSOP (A)
– 48-pin TSSOP (K)
Block Diagram
1OE ¹
1A1 ⁴⁷
1A2 ⁴⁶
1A3 ⁴⁴
1^A4 ⁴³
2OE ⁴⁸
2A1 ⁴¹
2A2 ⁴⁰
2A3 ³⁸
2A4 ³⁷
2 _1Y1
3 _1Y2
5 _1Y3
6 _1Y4
8 _2Y0
9 _2Y1
11 _2Y2
12 _2Y3
PI74AUC16244
1.8V 16-Bit Buffer/Driver
with 3-State Outputs
Description
Pericom Semiconductor’s PI74AUC series of logic circuits are
produced using the Company’s advanced submicron CMOS
technology, achieving industry leading speeds.
The PI74AUC16244 is a 16-bit buffer driver designed specifically
to improve both the performance and density of 3-state memory
address drivers, clock drivers and bus-oriented receivers and
transmitters.
The device can be used as four 4-bit buffers, two 8-bit buffers, or
one 16-bit buffer. It provides non-inverting outputs and symmetrical
active-low output-enable OE inputs.
To ensure the high-impedance state during power-up or power
-down, OE should be tied to V_CC through a pull-up resistor; the
minimum value of the resistor is determined by the current-sinking
ability of the driver.
The PI74AUC16244 is specified for partial power down applications
using I_OFF. The I_OFF circuitry disables the outputs preventing current
backflow through the device when it is powered down.
3OE ²⁵
3A1 ³⁶
3A2 ³⁵
3A3 ³³
3^A4 ³²
4OE ²⁴
4A1 ³⁰
4A2 ²⁹
4A3 ²⁷
4A4 ²⁶
13 _3Y1
14 _3Y2
16 _3Y3
17 _3Y4
19 _4Y1
20 _4Y2
22 _4Y3
23 _4Y4
A
PS8731
08/16/04