6HSWHPEHU $GYDQFHLQIRUPDWLRQ $6&017'$ 90i65$0ZLWK17'TM )HDWXUHV * Organization: 1,048,576 words x 18 bits * NTDTM architecture for efficient bus operation * Fast clock speeds to 200 MHz in LVTTL/LVCMOS * Fast clock to data access: 3/3.4/4 ns * Fast OE access time: 3/3.4/4 ns * Fully synchronous operation * "Flow-through" or "pipelined" mode * Asynchronous output enable control * Economical 100-pin TQFP package * 119 BGA (7 x 17 Ball Grid Array package) * Byte write enables * Clock enable for operation hold * Multiple chip enables for easy expansion * 2.5V core power supply * 2.5V I/O operation * Self-timed write cycles * Interleaved or linear burst modes * Snooze mode for standby operation D Q Write delay addr. registers NC NC NC 20 CLK R/W BWa BWb BWc BWd ADV / LD FT LBO ZZ CLK Write Buffer DATA [a:d] Control logic CLK 18 D Data Q Input Register 1M x 18 SRAM Array 1 FT 18 18 CLK VDD VDD VSS DQd DQd VDDQ VSSQ DQd DQd DQd NC VSSQ VDDQ NC NC NC 18 18 CLK CEN CLK VDDQ VSSQ NC NC DQc DQc VSSQ VDDQ DQc DQc Output Register VDD VSS CLK A A 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 TQFP 14 x 20mm A NC NC VDDQ VSSQ DQb DQb DQb DQb VSSQ VDDQ DQb DQb VSS VDD VDD ZZ DQa DQa VDDQ VSSQ DQa DQa NC NC VSSQ VDDQ NC NC NC OE LBO DATA [a:d] A A A A A1 A0 NC NC VSS VDD NC NC A A A A A A A 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 OE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 BWd BWc BWb BWa CE2 A A CLK CE0 CE1 CE2 CE1 20 Address register Burst logic CE0 Q D 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 20 A[19:0] R/W CEN OE ADV/LD A A 3LQDUUDQJHPHQWIRU74)3 WRSYLHZ /RJLFEORFNGLDJUDP 6HOHFWLRQJXLGH -200 -166 -100 Units 5 6 10 ns Maximum pipelined clock frequency 200 166 100 MHz Maximum pipelined clock access time 3.0 3.4 4.0 ns Maximum operating current 280 230 150 mA Maximum standby current 100 70 50 mA Maximum CMOS standby current (DC) 30 30 30 mA Minimum cycle time NTDTM is a trademark of Alliance Semiconductor Corporation. Y $OOLDQFH6HPLFRQGXFWRU 3RI &RS\ULJKW$OOLDQFH6HPLFRQGXFWRU$OOULJKWVUHVHUYHG $6&017'$ %*$3LQ2XW7RS9LHZ Y 1 2 3 4 5 6 7 $ 9''4 $ $ $ $ $ 9''4 % 1& &( $ $'9 /' $ &( 1& & 1& $ $ 9'' $ $ 1& ' '4E 1& 966 1& 966 '4SD 1& ( 1& '4E 966 &( 966 1& '4D ) 9''4 1& 966 2( 966 '4D 9''4 * 1& '4E %:E $ 966 1& '4D + '4E 1& 966 5: 966 '4D 1& - 9''4 9'' 1& 9'' 1& 9'' 9''4 . 1& '4E 966 &/. 966 1& '4D / '4E 1& 966 1& %:D '4D 1& 0 9''4 '4E 966 &(1 966 1& 9''4 1 '4E 1& 966 $ 966 '4D 1& 3 1& '43G 966 $ 966 1& '4D 5 1& $ /%2 9'' 1& $ 1& 7 1& $ $ 1& $ $ 1& 8 9''4 706 7', 7&. 7'2 1& 9''4 $OOLDQFH6HPLFRQGXFWRU 3RI