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HMF4M32M8G-90 Datasheet(PDF) 1 Page - Hanbit Electronics Co.,Ltd |
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HMF4M32M8G-90 Datasheet(HTML) 1 Page - Hanbit Electronics Co.,Ltd |
1 / 11 page HANBit HMF4M32M8G URL: www.hbe.co.kr HANBit Electronics Co., Ltd. REV.02(August,2002) 1 PIN ASSIGNMENT 72-PIN SIMM TOP VIEW GENERAL DESCRIPTION The HMF4M32M8G is a high-speed flash read only memory (FROM) module containing 8,388,608 words organized in a x32bit configuration. The module consists of eight 2M x 8bit FROM mounted on a 72 -pin, double-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. Eight chip enable inputs, (/CE_UU1, /CE_UM1, /CE_LM1, /CE_LL1, /CE_UU2, /CE_UM2, /CE_LM2, CE_LL2) are use d to enable the module ’s 4 bytes independently. Outputs 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 Part Identifications HMF4M32M8G : 16Mbyte, 72-pin SIMM, Gold HMF4M32M8 : 16Mbyte, 72-pin SIMM, Solder wAccess time : 75, 90 and 120ns w High-density 16MByte design w High-reliability, low-power design w Single + 5V ± 0.5V power supply w Easy memory expansion w All 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 Sectors erase architecture w Sector group protection w Temporary sector group unprotection w The used device is Am29F016B or MBM29F016-90PFTN OPTIONS MARKING w Timing 75ns access -75 90ns access -90 120ns access -120 w Packages 72-pin SIMM M PIN SYMBOL PIN SYMBOL PIN SYMBOL 1 Vss 25 A20 49 DQ17 2 A3 26 DQ8 50 DQ18 3 A2 27 DQ9 51 DQ22 4 A1 28 DQ10 52 DQ21 5 A0 29 /CE-LM2 53 DQ20 6 Vcc 30 Vcc 54 DQ19 7 A11 31 /CE-LM1 55 A19 8 /OE 32 DQ15 56 A15 9 A10 33 DQ14 57 A12 10 /RESET 34 DQ13 58 A7 11 /CE-LL2 35 DQ12 59 Vcc 12 /CE-LL1 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 /RY_BY 65 /CE-UU2 18 DQ5 42 A5 66 /CE-UU1 19 DQ4 43 A4 67 DQ31 20 DQ3 44 Vcc 68 DQ30 21 /WE 45 /CE-UM2 69 DQ29 22 A17 46 /CE-UM1 70 DQ28 23 A14 47 DQ23 71 DQ27 24 A13 48 DQ16 72 Vss FLASH-ROM MODULE 16MByte (4M x 32Bit), 72-Pin SIMM, 5V Part No. HMF4M32M8G |
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