器件名称: 74HCT670
功能描述: 4 x 4 register file; 3-state
文件大小: 80.47KB 共9页
简 介:INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT670 4 x 4 register file; 3-state
Product specication File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specication
4 x 4 register le; 3-state
FEATURES Simultaneous and independent read and write operations Expandable to almost any word size and bit length Output capability: bus driver ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT670 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT670 are 16-bit 3-state register files organized as 4 words of 4 bits each. Separated read and write address inputs (RA, RB and WA, WB) and enable inputs (RE and WE) are available, permitting simultaneous writing into one word location and reading from another location. The 4-bit word to be stored is presented to four data inputs (D0 to D3). The WA and WB inputs determine QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
74HC/HCT670
the location of the stored word. When the WE input is LOW, the data is entered into the addressed location. The addressed location remains transparent to the data while the WE input is LOW. Data supplied at the inputs will be read out in true (non-i……
