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HMF51232M4D Datasheet(PDF) 1 Page - Hanbit Electronics Co.,Ltd |
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HMF51232M4D Datasheet(HTML) 1 Page - Hanbit Electronics Co.,Ltd |
1 / 12 page HANBit HMF51232M4D URL: www.hbe.co.kr HANBit Electronics co., Ltd. REV.02(August,2002) 1 GENERAL DESCRIPTION The HMF51232M4D is a high-speed flash read only memory (FROM) module containing 524,288 words organized in a x32bit configuration. The module consists of four 512Kx 8 FROM mounted on a 72-pin, single-sided, FR4-printed circuit board. Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is similar to reading from 12.0V flash or EPROM devices. Four chip enable inputs, (/CE_UU2, /CE_UM2, /CE_LM2, /CE_LL2) are used to enable the module ’s 4 bytes independently. Output enable (/OE) and write enable (/WE) can set the memory input and output. When FROM module is disable condition, the module is becoming power standby mode, system designer can get low-power design. All module components may be powered from a single +5V DC power supply and all inputs and outputs are TTL-compatible. FEATURES w Access time : 55,70, 90 and 120ns w High-density 2MByte design w High-reliability, low-power design w Single + 5V ± 0.5V power supply w Easy memory expansion wAll inputs and outputs are TTL- compatible w FR4-PCB design w Low profile 72-pin SIMM w Minimum 1,000,000 write/erase cycle w Sector erases architecture w Sector group protection w Temporary sector group unprotection w Part Identification HMF51232M4D : Gold Plate Lead OPTIONS MARKING w Timing 55ns access - 55 70ns access - 70 90ns access - 90 120ns access - 120 w Package 72-pin SIMM M FUNCTIONAL BLOCK DIAGRAM PIN SYMBOL PIN SYMBOL PIN SYMBOL 1 Vss 25 Vcc 49 DQ17 2 A3 26 DQ8 50 DQ18 3 A2 27 DQ9 51 DQ22 4 A1 28 DQ10 52 DQ21 5 A0 29 NC 53 DQ20 6 Vcc 30 Vcc 54 DQ19 7 A11 31 /CE _LM2 55 Vcc 8 /OE 32 DQ15 56 A15 9 A10 33 DQ14 57 A12 10 Vcc 34 DQ13 58 A7 11 NC 35 DQ12 59 Vcc 12 /CE _LL2 36 DQ11 60 A8 13 DQ7 37 A18 61 A9 14 DQ0 38 A16 62 DQ24 15 DQ1 39 Vss 63 DQ25 16 DQ2 40 A6 64 DQ26 17 DQ6 41 Vcc 65 NC 18 DQ5 42 A5 66 /CE _UU2 19 DQ4 43 A4 67 DQ31 20 DQ3 44 Vcc 68 DQ30 21 /WE 45 NC 69 DQ29 22 A17 46 /CE _UM2 70 DQ28 23 A14 47 DQ23 71 DQ27 24 A13 48 DQ16 72 Vss FLASH-ROM MODULE 2MByte (512K x 32-Bit) Part No. HMF51232M4D PIN ASSIGNMENT 72-PIN SIMM TOP VIEW |
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