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The DAC0808 series is an 8-bit monolithic digital-to-analog converter (DAC) featuring a full scale output current settling time of 150 ns while dissipating only 33 mW with g5V sup- plies No reference current (IREF) trimming is required for most applications since the full scale output current is typi- cally g1 LSB of 255 IREF 256 Relative accuracies of bet- ter than g0 19% assure 8-bit monotonicity and linearity while zero level output current of less than 4 mA provides 8-bit zero accuracy for IREFt2 mA The power supply cur- rents of the DAC0808 series are independent of bit codes and exhibits essentially constant device characteristics over the entire supply voltage range The DAC0808 will interface directly with popular TTL DTL or CMOS logic levels and is a direct replacement for the
  The D2N202LF/5903 are 3.3V high-speed 9,437,184-bit (9 Megabit) synchronous SRAMs organized as 256K x 36 / 512K x 18. They are designed to eliminate dead bus cycles when turning the bus around between reads and writes, or writes and reads. Thus they have been given the name ZBTTM, or Zero Bus Turnaround.   Address and control signals are applied to the SRAM during one clock
The Hynix D2N202LF Series are 16Mx72bits ECC Synchronous DRAM Modules. The modules are composed of nine 16Mx8bits CMOS Synchronous DRAMs in 400mil 54pin TSOP-II package, one 2Kbit EEPROM in 8pin TSSOP package on a 168pin glass-epoxy printed circuit board. One 0.0022uF decoupling capacitors per each SDRAM are mounted on the PCB.