HMS1M32Z8L

HANBit HMS1M32M8L SRAM MODULE 4Mbyte(1Mx32Bit) ,LOW POWER,72Pin SIMM,5V Part No. HMS1M32M8L, HMS1M32Z8L GENERAL DESCRIPTION The HMS1M32M8L is a static random access memory (SRAM) module containing 1,048,576 bits organized in a x32-bit configuration. The module consists of eight 512K x 8 SRAMs mounted on a 72-pin, double-sided, FR4-printed circuit board. The HMS1M32M8L also support low data retention voltage for battery back-up operations with low data retention current. Eight chip enable inputs, (/CE_UU1, /CE_UM1, /CE_LM1, /CE_LL1, /CE_UU2, /CE_UM2, /CE_LM2, /CE_LL2) are used to enable the module’s 4M 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. accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW. For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be powered from a single +5V DC power supply and all inputs and outputs are fully TTL-compatible. Reading is FEATURES w Part identification - HMS1M32M8L : SIMM design - HMS1M32Z8L : ZIP design The both are Pin to Pin Compatible w Access times : 55ns, 70ns w High-density 4MByte design w High-reliability, low-power design w Single + 5V ±0.5V power supply w Low data retention voltage : 2V(min) w Three state output and TTL-compatible w FR4-PCB design www.DataSheet4U.com PIN ASSIGNMENT PIN 1 2 3 4 5 6 ...