Features: Part identification- HMF8M8M4 (Solder Plating Lead)- HMF8M8M4G (Gold Plating Lead) Access time : 70, 90, 120ns High-density 8MByte design High-reliability, low-power design Single + 5V ± 0.5V power supply Easy memory expansion All inputs and outputs are TTL-compatible FR4-PCB design Low...
HMF8M8M4G: Features: Part identification- HMF8M8M4 (Solder Plating Lead)- HMF8M8M4G (Gold Plating Lead) Access time : 70, 90, 120ns High-density 8MByte design High-reliability, low-power design Single + 5V ± ...
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Features: · Part Identifications HMF8M32M8A : 32Mbyte, 72-pin SIMM, Gold·Access time : 55, 70, 90·...
Features: · Access time : 75, 90 and 120ns· High-density 32MByte design· High-reliability, low-pow...
DescriptionThe HMF8M32M8V is a high-speed flash read only memory (FROM) module containing 16,777,2...
PARAMETER | SYMBOL | RATING |
Voltage with respect to ground all other pins | VIN,OUT | -2.0V to +7.0V |
Voltage with respect to ground Vcc | VCC | -2.0V to +7.0V |
Storage Temperature | TSTG | -65 to +125 |
Operating Temperature | TA | 55 to +125 |
Stresses greater than those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operating section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
The HMF8M8M4G is a high-speed flash read only memory (FROM) module containing 8,388,608 words organized in a x8bit configuration. The module consists of four 2M x 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 HMF8M8M4G 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 HMF8M8M4G'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 HMF8M8M4G 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 TTLcompatible.