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| www..com ********** --TOP VIEW-- 14 DI3 DI2 DI1 DI0 MN4775AS (1/2) IL22 C-MOS 1M (262,144-WORD x 4)-BIT FIFO MEMORY 15 16 17 18 1 NC 2 NC 3 NC 4 NC WE IN 5 6 GND TEST IN 7 WRST IN 8 WCK IN 9 10 VDD(+5V) DI0 IN 11 DI1 IN 12 DI2 IN 13 DI3 IN 14 NC 28 NC 27 NC 26 NC 25 24 RE IN GND 23 22 OE IN 21 RRST IN 20 RCK IN VDD(+5V) 19 18 DO0 OUT 17 DO1 OUT 16 DO2 OUT 15 DO3 OUT DO3 DO2 DO1 DO0 13 12 11 9 8 5 WCK WRST WE 20 21 24 RCK RRST RE 22 OE 7 TEST INPUT DI0 - DI3 OE RCK RE RRST TEST WCK WE WRST : : : : : : : : : DATA OUTPUT ENABLE READ CLOCK READ ENABLE READ RESET TEST WRITE CLOCK WRITE ENABLE WRITE RESET ww..com OUTPUT DO0 - DO3 : DATA www..com www..com www..com 4U DataSheet 4 U .com www..com www..com MN4775AS (2/2) TEST 7 REFRESH CLOCK GENERATOR REFRESH ADDRESS GENERATOR 20 21 WCK WRST WE 9 8 5 RCK RRST RE OE WRITE CLOCK GENERATOR ARBITER READ CLOCK GENERATOR 24 22 WRITE ADDRESS GENERATOR READ ADDRESS GENERATOR DECODER WRITE DATA WRITE REGISTER ADDRESS 256-WORD POINTER x 4-BIT READ DATA READ REGISTER ADDRESS 128-WORD POINTER x 4-BIT MEMORY CELL ARRAY 262,144-WORD x 4-BIT DI3 DI2 DI1 DI0 14 13 12 11 15 DATA INPUT BUFFER POINTER LINE REGISTER 128-WORD x 4-BIT DATA OUTPUT BUFFER DO3 DO2 DO1 DO0 16 17 18 ww..com www..com www..com www..com 4U DataSheet 4 U .com www..com |
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