Features: • Memory configuration of 256×9 bits• High-speed access, address access time 40ns (typ.)• Complete asynchronous accessibility from ports A and B• Completely static operation• Built-in port arbitration function• Low power dissipation CMOS design• ...
M66221FP: Features: • Memory configuration of 256×9 bits• High-speed access, address access time 40ns (typ.)• Complete asynchronous accessibility from ports A and B• Completely static ...
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Symbol |
Parameter |
Conditions |
Ratings |
Unit |
Vcc | Supply voltage |
When defining GND pin as a reference. |
-0.3to +7.0 |
V |
VI | Input voltage |
-0.3toVcc+0.3 |
V | |
Vo | Output voltage |
0toVcc |
V | |
Pd | Maximum power dissipation | Ta = 25 °C |
800 |
mW |
Tstg | Storage temperature |
-65 to +150 |
°C |
The M66221 is a mail box that incorporates a complete CMOS shared memory cell of 256 ´ 9-bit configuration using high-performance silicon gate CMOS process technology, and is equipped with two access
ports of A and B.
Access ports A and B of M66221 are equipped with independent addresses CS,WE and OE control pins and I/O pins to allow independent and asynchronous read/write operations from/to shared memory individually. This product also incorporates a port adjustment arbitration function in address contention from both ports.