70V659S12DRI IDT, 70V659S12DRI Datasheet - Page 2

• Manufacturer Part Number: 70V659S12DRI
• Description: SRAM 128Kx36 STD-PWR 3.3V DUAL-PORT RAM
• Manufacturer: IDT
• Series: IDT70V659/58/57Sr
• Type: Dual Port RAMr

Specifications of 70V659S12DRI

• Memory Size: 4 Mbit
• Organization: 128 K x 36
• Access Time: 12 ns
• Supply Voltage - Max: 3.45 V
• Supply Voltage - Min: 3.15 V
• Maximum Operating Current: 515 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: PQFP-208
• Interface: LVTTL
• Memory Type: Asynchronous
• Part # Aliases: IDT70V659S12DRI

Description
nous Dual-Port Static RAM. The IDT70V659/58/57 is designed to be used
as a stand-alone 4/2/1Mbit Dual-Port RAM or as a combination MASTER/
SLAVE Dual-Port RAM for 72-bit-or-more word system. Using the IDT
MASTER/SLAVE Dual-Port RAM approach in 72-bit or wider memory
system applications results in full-speed, error-free operation without the
need for additional discrete logic.
IDT70V659/58/57S
High-Speed 3.3V 128/64/32K x 36 Asynchronous Dual-Port Static RAM
The IDT70V659/58/57 is a high-speed 128/64/32K x 36 Asynchro-
This device provides two independent ports with separate control,
2
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. An automatic power down
feature controlled by the chip enables (either CE
on-chip circuitry of each port to enter a very low standby power mode.
or 2.5V on one or both ports, controlled by the OPT pins. The power supply
for the core of the device (V
The 70V659/58/57 can support an operating voltage of either 3.3V
Industrial and Commercial Temperature Ranges
DD
) remains at 3.3V.
0
or CE
1
) permit the