|
Details, datasheet, quote on part number:PI74VCX16244V
| |
Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74VCX16244
16-Bit Buffer/Driver with 3-State Outputs
Product Features
· The PI74VCX Family is designed for low voltage operation, CD = 1.8V to 3.6V · 3.6V Tolerant Inputs and Outputs · Supports Live Insertion · Balanced Drive, ±24mA · Uses patented Noise Reduction Circuitry · Typical VOLP (Output Ground Bounce) <0.6V at VDD = 2.5V, TA = 25ºC · Typical VOHV (Output VOH Undershoot) < -0.6V at VDD = 2.5V, TA = 25ºC · 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 300 mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI74VCX series of logic circuits is produced in the Company's advanced 0.35 micron CMOS technology, achieving industry leading speed. The 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 symmetrical activelow output-enable (OE) inputs. To ensure the high-impedance state during power up or power down, 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 PI74VCX family is I/O Tolerant, allowing it to operate in 1.8/3.6V systems.
Logic Block Diagram
1
PS8160A
09/09/98
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74VCX16244 16-BIT BUFFER DRIVER WITH 3-STATE OUTPUTS Truth Table(1)
Inputs nOE L L H nAX H L X Outputs nYx H L Z
Product Pin Description
Pin Name nOE nAx nYx GND V CC Description 3-State Output Enable Inputs (Active LOW) Inputs 3-State Outputs Ground Power
Product Pin Configuration
Notes: 1. H = High Signal Level L = Low Signal Level X = Don't Care or Irrelevant Z = High Impedance
1OE 1Y 1 1Y 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
2O E 1A 1 1A 2
GND
1Y 3 1Y 4
GND
1A 3 1A 4
VCC
2Y 1 2Y 2
VCC
2A 1 2A 2
GND
2Y 3 2Y 4 3Y 1 3Y 2
GND
2A 3 2A 4 3A 1 3A 2
GND
3Y 3 3Y 4
48-PIN A48 V48
36 35 34 33 32 31 30 29 28 27 26 25
GND
3A 3 3A 4
VCC
4Y 1 4Y 2
VCC
4A 1 4A 2
GND
4Y 3 4Y 4 4OE
GND
4A 3 4A 4 3O E
2
PS8160A
09/09/98
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74VCX16244 16-BIT BUFFER DRIVER WITH 3-STATE OUTPUTS
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 VCC+0.5 DC Input Diode Current (IIK) VIVDD ....... +50mA DC Output Source/Sink Current (IOH/IOL) ...... ±50mA DC VDD or GND Current per Supply Pin (ICC or GND) ...... ±100mA Storage Temperature Range, Tstg ...... 65°C to 150°C Note: 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.
Recommended Operating Conditions(2)
M in. VDD VIH VIL VI VO Supply voltage High- level input voltage Low- level input voltage Input voltage O utput voltage Active State O ff State VDD = 3.0V to 3.6V VDD = 2.3V to 2.7V VDD = 1.8V 0 -40 O perating Data Retention O nly VDD = 2.7V to 3.6V VDD = 2.7V to 3.6V - 0.3 0 0 1.8 1.2 2.0 0.8 3.6 VDD 3.6 ±24 ±18 ±6 10 85 mA ns/V C V M ax. 3.6 3.6 Units
IO t/v TA
O utput current in IOH/IOL Input transistion rise or fall rate(3) O perating free- air temperature
Notes 1. Absolute maximum of IO must be observed. 2. Unused control inputs must be held HIGH or LOW to prevent them from floating. 3 As measured between 0.8V and 2.0V, VDD = 3.0V.
3
PS8160A
09/09/98
|
|
