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K4D551638D-TC Datasheet(PDF) 4 Page - Samsung semiconductor |
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K4D551638D-TC Datasheet(HTML) 4 Page - Samsung semiconductor |
4 / 18 page 256M GDDR SDRAM K4D551638D-TC - 4 - Rev 1.8 (Oct. 2003) PIN CONFIGURATION (Top View) PIN DESCRIPTION CK,CK Differential Clock Input BA0, BA1 Bank Select Address CKE Clock Enable A0 ~A12 Address Input CS Chip Select DQ0 ~ DQ15 Data Input/Output RAS Row Address Strobe VDD Power CAS Column Address Strobe VSS Ground WE Write Enable VDDQ Power for DQ’s L(U)DQS Data Strobe VSSQ Ground for DQ’s L(U)DM Data Mask NC No Connection RFU Reserved for Future Use VREF Reference voltage 1 66 PIN TSOP(II) (400mil x 875mil) 2 3 4 5 6 7 8 9 10 11 12 20 19 18 17 16 15 14 13 27 26 25 24 23 22 21 54 53 52 51 50 49 48 47 46 45 44 43 35 36 37 38 39 40 41 42 55 56 57 58 59 60 34 (0.65 mm Pin Pitch) 33 32 31 30 29 28 61 62 63 64 65 66 VDD DQ0 VDDQ DQ1 DQ2 VSSQ DQ3 DQ4 VDDQ DQ5 DQ6 VSSQ BA0 CS RAS CAS WE LDM VDDQ DQ7 VDD A3 A2 A1 A0 AP/A10 BA1 NC LDQS NC NC NC VDD VSS DQ15 VSSQ DQ14 DQ13 VDDQ DQ12 DQ11 VSSQ DQ10 DQ9 VDDQ A11 CKE CK UDM VREF VSSQ DQ8 VSS A4 A5 A6 A7 A8 A9 NC UDQS NC VSS CK NC A12 |
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