HMS51232Z4V

Features:

` Access times : 10, 12 and 15ns
`High-density 2Mbyte design
`High-reliability, high-speed design
`Single + 3.3V ±0.3V power supply
` Easy memory expansion /CE and /OE functions
` All inputs and outputs are LVTTL-compatible
` Industry-standard pinout
` FR4-PCB design
` Part Identification
- HMS51232M4V: SIMM design
- HMS51232Z4V: ZIP design
Pin-compatible with the HMS51232M4V




Pinout






Specifications

PARAMETER	SYMBOL	RATING
Voltage on Any Pin Relative to Vss	VIN,OUT	-0.5V to +4.6V
Voltage on Vcc Supply Relative to Vss	VCC	-0.5V to +4.6V
Power Dissipation	PD	4W
Storage Temperature	TSTG	-65 to +150
Operating Temperature	TA	0 to +70

*Stresses greater than those listed under " Absolute Maximum Ratings" may cause permanent
damage to the device. This is a stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operating section of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.




Description

The HMS51232M4V/HMS51232Z4V is a high-speed static random access memory (SRAM) module containing 524,288 words organized in a x32-bit configuration. The module consists of four 512K x 8 SRAMs mounted on a 72-pin, single-sided, FR4-printed circuit board.

PD0 to PD3 identify the module HMS51232Z4V's density allowing interchangeable use of alternate density, industry- standard modules. Four chip enable inputs, (/CE1, /CE2, /CE3 and /CE4) are used to enable the module's 4 bytes independently. Output enable(/OE) and write enable(/WE) can set the memory input and output. Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW. Reading is accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW.
For reliability, this SRAM module HMS51232Z4V is designed as multiple power and ground pin. All module components may be
powered from a single +3.3V DC power supply and all inputs and outputs are fully LVTTL-compatible.