HMF51232J4 Datasheet | Hanbit Electronics

DESCRIPTION The HMF51232J4 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 68 -pin, JLCC FR4-printed circuit board. mands are written to the mand 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, (/CE1, /CE2, /CE3, /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. When FROM module is disable condition, the module is being power standby mode, system designer can get low -power design. All module ponents may be powered from a single +5V DC power s upply and all inputs and outputs are TTL-patible. 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 w All inputs and outputs are TTL-patible w FR4-PCB design w Low profile 68-pin JLCC w Minimum 1,000,000 write/erase cycle w Sector erases architecture .. PIN ASSIGNMENT DQ16 A18 A17 /CE4 /CE3 /CE2 /CE1 NC Vcc NC NC /OE /WE A16 A15 A14 DQ15 DQ17 DQ18 DQ19 Vss DQ20 DQ21 DQ22 DQ23 Vcc DQ24 DQ25 DQ26 DQ27 Vss DQ28 DQ29 DQ30 10 9 8 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 26 44 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 w Sector group protection w Temporary sector group unprotection OPTIONS w Timing 55ns access 70ns access 90ns access 120ns access MARKING -55 -70 -90 -120 DQ14 DQ13 DQ12 Vss DQ11 DQ10 DQ9 DQ8 Vcc DQ7 DQ6 DQ5 DQ4 Vss DQ3 DQ2 DQ1 w Packages 68-pin JLCC J URL:...