Quick Detail:

IC MEM FIFO 256X9 15NS 32-PLCC

Description:

The IDT7200/7201/7202 are dual-port memories that load and empty data on a first-in/first-out basis.  The devices use Full and Empty flags to prevent data overflow and underflow and expansion logic to allow for unlimited expansion capability in both word size and depth. The reads and writes are internally sequential through the use of ring pointers, with no address information required to load and unload data.  Data is toggled in and out of the devices through the use of the Write (W) and Read (R) pins. The devices utilize a 9-bit wide data array to allow for control and parity bits at the user’s option.  This feature is especially useful in data communications applications where it is necessary to use a parity bit for transmission/reception error checking.  It also features a Retransmit (RT) capability that allows for reset of the read pointer to its initial position when RT is pulsed low to allow for retransmission from the beginning of data.  A Half-Full Flag is available in the single

device mode and width expansion modes. These FIFOs are fabricated using IDT’s high-speed CMOS technology.  They are designed for those applications requiring asynchronous and simultaneous read/writes in multiprocessing and rate buffer applications.  Military grade product is manufactured in compliance with the latest revision of MIL-STD-883, Class B.

Applications:

• Ethernet/fast ethernet

• Router

• Network switches

• SAN

• Instrumentation

Specifications:

Datasheets	IDT7200L/7201-02LA IDT Suffixes
Standard Package	32
Category	Integrated Circuits (ICs)
Family	Logic - FIFOs Memory
Series	7200
Packaging	Tube
Package / Case	32-LCC (J-Lead)
Mounting Type	Surface Mount
Function	Asynchronous
Memory Size	2.25K (256 x 9)
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.5 V ~ 5.5 V
Data Rate	40MHz
Access Time	15ns
Current - Supply (Max)	80mA
Bus Directional	Uni-Directional
Expansion Type	Depth, Width
Programmable Flags Support	No
Retransmit Capability	Yes
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