SN74ACT7882

2048

× 18

CLOCKED FIRST-IN, FIRST-OUT MEMORY

SCAS445C – JUNE 1994 – REVISED APRIL 1998

6

POST OFFICE BOX 655303

12

3

4

12

12

3

4

Store the Value of Data as X

Define the AF/AE Flag

Using the Value of X

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Invalid

Invalid

Invalid

Invalid

Invalid

X†

RESET

DAF

WRTCLK

WRTEN1

WRTEN2

D0–D17

RDCLK

RDEN1

RDEN2

OE

Q0–Q17

OR

AF/AE

HF

IR

† X is the binary value on D9–D0.

Figure 1. Reset Cycle: Define AF/AE Using a Programmed Value of X