Am9401
Am9401 is Dua11024-Bit Dynamic Shift Register manufactured by AMD.
DESCRIPTION
The Am9401 is a dual 1024- bit dynamic shift register built using ion- implanted, N- channel, silicon gate MOS technology. The device operates from a single +5 volt power supply and all inputs and outputs, including the clock, are directly TTL patible. Data is entered into the register on the LOW-to- HIGH transition of the clock input. New data appears on the output following the HIGH- to- LOW clock transition. There are two chip select inputs, CSx and CSy; if either is HIGH then the data in both registers recirculates and the outputs go to a HIGH impedance OFF state. If both chip selects are LOW, then the outputs will be LOW for LOW data and OFF for HIGH data (similar to TTL open collectors). When the chip is selected, the writerecirculate lines control the entry of new data. If W/R is HIGH new data is written into the corresponding register; if W/R is LOW, the data on the output is recirculated. An internal pull-up resistor to Vee is provided at RL' This point may be connected to the output to establish the HIGH logic level. Many register outputs may be connected together with the RL connected only once. The Am9401 is a high performance plug- in replacement for the Am2401.
Vee = Pin 16 GND=Pin8
MOS- 455
LOGIC BLOCK DIAGRAM
IN INo------------------r-4 CP O
- -
- -
- -
- -
- -
- -
- -
- - r
- -
- -
- - _
- -
- -
- -
- - f CLOCK
W/R 0------------1
1024-BIT SHIFT REGISTER
1.3k!l NOMINAL
TO SECOND REGISTER
Note: Only one register shown.
ORDERING INFORMATION
Package Type
Temperature Range
Order Order Number Number
16- Pin Molded DIP O°C to +70°C AM9401PC P2401 16-Pin Hermetic DIP 0°Cto+70°C AM9401DC C2401 16- Pin Hermetic DIP -55°Cto +125°C AM9401DM
5-57
CONNECTION DIAGRAM Top View
OUT 1 RLl IN 1
W/R 1
CSx CSy
NC GND
VCC IN 2 OUT 2 RL2 W/R 2 CP NC NC
Note: Pin 1 is marked for...
