HMD2M32M4E

HANBit HMD2M32M4E/4EG 8Mbyte(2Mx32) EDO Mode, 1K Refresh 72Pin SIMM, 5V Design Part No. HMD2M32M4E, HMD2M32M4EG GENERAL DESCRIPTION The HMD2M32M4E is a 2M x 32bit dynamic RAM high-density memory module. The module consists of four CMOS 1M x 16bit DRAMs in 42-pin SOJ packages mounted on a 72 -pin, double-sided, FR-4-printed circuit board. A 0.1 or 0.22uF decoupling capacitor is mounted on the printed circuit board for each DRAM components. The module is a single In -line Memory Module with edge connections and is intended for mounting in to 72 -pin edge connector sockets. All module components may be powered from a single 5V DC power supply and all inputs and outputs are TTL -compatible. FEATURES www.DataSheet4U.com PIN PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 tRC 90ns 110ns 130ns 19 20 21 22 23 24 60ns NC NC NC NC SYMBOL Vss DQ0 DQ16 DQ1 DQ17 DQ2 DQ18 DQ3 DQ19 Vcc NC A0 A1 A2 A3 A4 A5 A6 A10 DQ4 DQ20 DQ5 DQ21 DQ6 70ns NC NC Vss NC ASSIGNMENT PIN 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SYMBOL DQ22 DQ7 DQ23 A7 A11 Vcc A8 A9 /RAS3 /RAS2 NC NC NC NC Vss /CAS0 /CAS2 /CAS3 /CAS1 /RAS0 /RAS1 NC /WE NC PIN 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 SYMBOL DQ8 DQ24 DQ9 DQ25 DQ10 DQ26 DQ11 DQ27 DQ12 DQ28 Vcc DQ29 DQ13 DQ30 DQ14 DQ31 DQ15 NC PD1 PD2 PD3 PD4 NC Vss w Part Identification HMD2M32M4E---- 1024 Cycles/16ms Ref . Solder HMD2M32M4EG- -1024 Cycles/16ms Ref . Gold w Access times : 50, 60ns w High-density 8...