CD40208BMS中文資料Intersil數(shù)據手冊PDF規(guī)格書

Description

The CD40208BMS is a 4 x 4 multiport register containing four 4-bit registers, write address decoder, two separate read address decoders, and two 3-state output buses.

Features

? High Voltage Types (20V Rating)

? One Input and Two Output Buses

? Unlimited Expansion in Bit and Word Directions

? Data Lines have Latched Inputs

? 3-State Outputs

? Separate Control of Each Bus, Allowing Simultaneous Independent Reading of any of Four Registers on Bus A and Bus B and Independent Writing Into any of the Four Registers

? 100 Tested for Quiescent Current at 20V

? Standardized, Symmetrical Output Characteristics

? 5V, 10V and 15V Parametric Ratings

? Maximum Input Current of 1μA at 18V Over Full Package-Temperature Range; 100nA at 18V and +25°C

? Noise Margin (Full Package-Temperature Range):

??? - 1V at VDD = 5V

??? - 2V at VDD = 10V

??? - 2.5V at VDD = 15V

? Meets All Requirements of JEDEC Tentative Standards No. 13B, “Standard Specifications for Description of “B” Series CMOS Devices”

Applications

? Scratch Pad Memories

? Arithmetic Units

? Data Storage