A CMOS SPEECH SYNTHESIZER

The TMS55165 TMS55166 TMS55175 TMS55176 multiport Video RAMs are high-speed dual-ported memory devices. Each consists of a dynamic random-access memory (DRAM) organized as 262 144 words of 16 bits each interfaced to a serial-data Register [serial-access memory (SAM)] organized as 256 words of 16 bits each. These devices support three basic types of operation: random access to and from the DRAM serial access from the serial Register and transfer of data from the DRAM to the SAM. Except during transfer operations, these devices CAN be accessed simultaneously and asynchronously from the DRAM and SAM ports. The TMS551xx multiport Video RAMs provide several functions designed to provide higher system-level bandwidth and to simplify design integration on both the DRAM and SAM ports (see Table 2). On the DRAM port, greater pixel draw rates are achieved by the block-write function. The TMS5516x devices 4-column block-write function allows 16 bits of data (present in an on-chip color-data register) to be written to any combination of four adjacent column-address locations, up to a total of 64 bits of data per CAS cycle time. Similarly, the TMS5517x devices 8-column block-write function allows 16 bits of data to be written to any combination of eight adjacent column-address locations, up to a total of 128 bits of data per CAS cycle time. Also on the DRAM port, the write-per-bit (or write mask) function allows masking of any combination of the 16 DQs on any write cycle. The persistent write-per-bit function uses a mask Register that, once loaded, CAN be used on subsequent write cycles without reloading. All TMS551xx devices offer byte control. Byte control CAN be applied in write cycles, block-write cycles, load-write-mask-register cycles, and load-color-register cycles. The TMS551xx devices offer enhanced page-mode operation that results in faster access time. The TMS551x6 devices also offer extended-data-output (EDO) mode. The EDO mode is effective in both the page-mode and the standard DRAM cycles. By Texas Instruments
Part Manufacturer Description Datasheet Samples
TMS55165-80DGH Texas Instruments 256KX16 VIDEO DRAM, 80ns, PDSO64, PLASTIC, SOP-64
TMS55165-70DGH Texas Instruments 256KX16 VIDEO DRAM, 70ns, PDSO64, SOP-64
TMS55165-70DGE Texas Instruments 256KX16 VIDEO DRAM, 70ns, PDSO64, PLASTIC, SOP-70/64
TMS55165-60DGH Texas Instruments 256KX16 VIDEO DRAM, 60ns, PDSO64, SOP-64
TMS55165-60DGE Texas Instruments 256KX16 VIDEO DRAM, 60ns, PDSO64, PLASTIC, SOP-70/64
TMS55165 's PackagesTMS55165 's pdf datasheet
TMS55166
TMS55175
TMS55176




TMS55165 Pinout, Pinouts
TMS55165 pinout,Pin out
This is one package pinout of TMS55165,If you need more pinouts please download TMS55165's pdf datasheet.

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