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| Datasheet File OCR Text: |
| 1234567891011 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 -top view- v dd (+5v) gnd gnd gnd (+5v) dd v gnd gnd gnd v dd (+5v) a5 a6 a7 a10 a11 a12 a13 a14 a15 txda prio rts rx0 rx1 i i i i i i i i i i i i i i i i i o o o o o o o o o o o o o o o o o o - - - - - - - - - gnd gnd gnd v dd v dd gnd gnd gnd v dd ********** mreq ram cram xcs0 xcs1 xcs2 xcs3 xio0 xio1 xio2 xio3 merd mewr tx0 tx1 xmas xsl rxda c-mos gate array pin no. i/o signal pin no. i/o signal 1 2 3 4 5 6 7 8 9 10 11 =+5v) dd (v 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 xrd xwr rom input output ;address input mreq ;memory request in ;read in txda prio rts rx0 rx1 ;write in ;tx data in ;priority control in ;rts control in ;rx0 in ;rx1 in rom ram cram merd mewr tx0 tx1 xmas xsl rxda ;memory read output ;memory write output ;tx data output -1 ;tx data output -0 ;master enable l output ;slave enable l output ;selected rx data output a5 mreq txda prio rts rx0 rx1 rom ram cram xcs0 xcs1 xcs2 xcs3 xio0 xio1 xio2 xio3 merd mewr tx0 tx1 xmas xsl rxda 1 11 12 13 15 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 40 41 42 43 44 ;4k byte address decode output ;8k byte address decode output ;48k byte address decode output a5-a15 ;1k byte address decodeoutput ;i/o chip select output xcs0-xcs3 xio0-xio3 a15 a14 a13 a12 a11 a10 a7 a6 10 9 8 7 6 5 3 2 rd wr rd wr CXD8813Q il08
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