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The PD4664312-X is a high speed, low power, 67,108,864 bits (4,194,304 words by 16 bits) CMOS Mobile Specified RAM featuring Low Power Static RAM compatible function and pin configuration.
The PD4664312-X is fabricated with advanced CMOS technology using one-transistor memory cell.
The PD4664312-X is packed in 93-pin TAPE FBGA.
UPD4664312-X Maximum Ratings
Parameter
Symbol
Condition
Rating
Unit
-B65X
-BE75X
Supply voltage
VCC
Note 0.5 to +4.0
Note 0.5 to +4.0
V
Input / Output supply voltage
VCCQ
Note 0.5 to +4.0
V
Input / Output voltage
VT
0.5 to VCC + 0.4 (4.0 V MAX.)
0.5 to VCCQ + 0.4 (4.0 V MAX.)
V
Operating ambient temperature
TA
25 to +85
25 to +85
°C
Storage temperature
Tstg
55 to +125
55 to +125
°C
UPD4664312-X Features
* 4,194,304 words by 16 bits organization * Fast access time: 65, 75 ns (MAX.) * Fast page access time: 18, 25 ns (MAX.) * Byte data control: /LB (I/O0 to I/O7), /UB (I/O8 to I/O15) * Low voltage operation:2.7 to 3.1 V (-B65X) 2.7 to 3.1 V (Chip), 1.65 to 2.1 V (I/O) (-BE75X) * Operating ambient temperature: TA = 25 to +85 °C * Output Enable input for easy application * Chip Enable input: /CS pin * Standby Mode input: MODE pin * Standby Mode1: Normal standby (Memory cell data hold valid) * Standby Mode2: Density of memory cell data hold is variable