PI74ALVTC16241A

PI74ALVTC16241 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 16-Bit Buffer/Driver with 3-State Outputs Product Features Product Description • PI74ALVTC family is designed for low voltage operation, VDD = 1.8V to 3.6V • Supports Live Insertion • 3.6V I/O Tolerant Inputs and Outputs • Bus Hold • High Drive, -32/64mA @ 3.3V • Uses patented noise reduction circuitry • Power-off high impedance inputs and outputs • Industrial operation at –40°C to +85°C • Packages available: – 48-pin 240 mil wide plastic TSSOP (A) – 48-pin 173 mil wide plastic TVSOP (K) – 48-pin 300 mil wide plastic SSOP (V) Pericom Semiconductor’s PI74ALVTC series of logic circuits are produced in the Company’s advanced 0.35 micron CMOS technology, achieving industry leading speed. The PI74ALVTC16241 buffer/driver is 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 true outputs and complementary activelow output-enable (OE and OE) inputs. To ensure the high-impedance state during power up or power down, OE should be tied to Vdd through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The family offers both I/O Tolerant, which allows it to operate in mixed 1.8/3.6V systems, and “Bus Hold,” which retains the data input’s last state whenever the data input goes to high-impedance, preventing “floating” inputs and eliminating the need for pullup/ down resistors. Logic Block Diagram 1 PS8358A 11/23/98 PI74ALVTC16241 16-Bit Buffer Driver With 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name nOE nOE nAx nYx GND VCC Truth Tables(1) Inputs Description 3-State Output Enable Inputs (Active LOW) 3-State Output Enable Inputs (Active HIGH) Inputs 3-State Outputs Ground Power 1 48 2OE 1Y1 2 47 1A1 1Y2 3 46 1A2 GND 4 45 GND 1Y3 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 VCC 2Y1 8 41 2A1 2Y2 9 40 2A2 39 GND 38 2A3 48-PIN A48 K48 V48 GND 10 2Y3 11 2Y4 12 37 2A4 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 15 34 GND 3Y3 16 33 3A3 3Y4 17 32 3A4 VCC 18 31 VCC 4Y1 19 30 4A1 4Y2 20 29 4A2 GND 21 28 GND 4Y3 22 27 4A3 4Y4 23 26 4A4 4OE 24 25 3OE 1,4OE 1,4AX 1,4Yx L H H L L L H X Z Inputs Product Pin Configuration 1OE Outputs Outputs 2,3OE 2,3AX 2,3Yx L H H L L L H X Z Notes: 1. H = High Signal Level L = Low Signal Level X = Don’t Care or Irrelevant Z = High Impedance 2 PS8358A 11/23/98 PI74ALVTC16241 16-Bit Buffer Driver With 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage Range, VDD .......................................... –0.5V to 4.6V Input Voltage Range, VI ................................................. -0.5V to 4.6V Output Voltage Range, VO (3-Stated) ............................ -0.5V to 4.6V Output Voltage Range, VO(1) (Active) ................. –0.5V to VDD +0.5V DC Input Diode Current (IIK) VI