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| UG4256G6412FQG0 2M Bytes (256K x 64) SGRAM 144Pin SODIMM based on 256K x 32 General Description The UG4256G6412FQG0 is a 256K byte by 64 bits 2M SGRAM SODIMM module .The UG4256G6412FQG0 is assembled using 2 pcs of 256K x 32 SGRAMs mounted on 144 pin unbuffered printed circuit board. Features Absolute Maximum Ratings * * * * * Voltage Relative to GND -1.0 to +4.6 V Operating Temperature 0 to +70 C Storage Temperature -55 to +150 C Short-circuit Output Current 50mA Power Dissipation 2.0 W Pin Assignment Pin # 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 Signal VSS DQ63 DQ61 DQ59 DQ57 VCC DQ55 DQ53 DQ51 DQ49 VSS DQM7 DQM5 VCC DQ47 DQ45 DQ43 DQ41 VSS DQ39 DQ37 DQ35 DQ33 VCC RSVD RSVD RSVD VSS DSF RFU RFU VCC NC RAS WE VSS Pin # 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Signal VSS DQ62 DQ60 DQ58 DQ56 VCC DQ54 DQ52 DQ50 DQ48 VSS DQM6 DQM4 VCC DQ46 DQ44 DQ42 DQ40 VSS DQ38 DQ36 DQ34 DQ32 VCC RSVD RSVD RSVD VSS RFU RFU SBA VCC CS0 CAS CKE VSS Pin # 73 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 117 119 121 123 125 127 129 131 133 135 137 139 141 143 Signal NC VCC RSVD NC BA(A9) A7 VSS A5 A3 A1 VCC DQ31 DQ29 DQ27 DQ25 VSS DQ23 DQ21 DQ19 DQ17 VCC DQM3 DQM1 VSS DQ15 DQ13 DQ11 DQ9 VCC DQ7 DQ5 DQ3 DQ1 VSS SDA VCC Pin # 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 Signal CLK0 VCC RSVD NC A8 A6 VSS A4 A2 A0 VCC DQ30 DQ28 DQ26 DQ24 VSS DQ22 DQ20 DQ18 DQ16 VCC DQM2 DQM0 VSS DQ14 DQ12 DQ10 DQ8 VCC DQ6 DQ4 DQ2 DQ0 VSS SCL VCC * Single 3.3 +/- 0.3V power supply * Burst Mode Operation * BLOCK WRITE and WRITE-BIT modes * Internal pipelined operation; column address can be changed every clock cycle * All inputs are sampled at the positive going edge of the system clock * Programmable burst lengths : 1,2,4,8 or full page * Auto & self refresh capability (1024 Cycles/16ms) * LVTTL compatible inputs and output * Serial PD with EEPROM * JEDEC standard * PCB:Height (1100mil),single sided component Pin Names Pin Name A0 ~ A8 BA(A9) DQ0 ~ DQ63 CLK0 CKE CS0 RAS CAS WE DSF DQM0 ~ 7 VCC VSS SDA SBA SCL RSVD RFU NC Function Address input (Multiplexed) Select bank Data input/output Clock input Clock enable input Chip select input Row address storbe Colume address strobe Write enable Define special function DQM Power supply (3.3V) Ground Serial data I/O EEPROM Device Address Serial clock Reserved Reserved for future use No connection 45388 Warm Springs Blvd. Fremont, CA. 94539 Tel: (510) 668-2088 Fax: (510) 661-2788 support@unigen.com 1 of 3 Re-Tek- 436 UG4256G6412FQG0 Functional Block Diagram CS0 DQM0 DQ0 DQM0 DQ0 DQ7 DQM1 DQ8 * * * DQ7 DQM1 DQ8 * * * DQM4 DQ32 U0 * * * DQ39 * * * DQ47 * * * DQ55 * * * DQ63 DQM0 DQ0 * * * DQ7 U1 * * * DQ15 * * * DQ23 * * * DQ31 DQ15 DQM2 DQ16 * * * DQM5 DQ40 DQM1 DQ8 * * * DQ15 * * * DQ23 * * * DQM2 DQ16 * * * DQ23 * * * DQ31 DQM6 DQ48 DQM2 DQ16 DQM3 DQ24 DQM3 DQ24 DQM7 DQ56 DQM3 DQ24 DQ31 CKE RAS CAS WE DSF A(8:0) BA(A9) U0 to U1 U0 to U1 U0 to U1 U0 to U1 U0 to U1 U0 to U1 U0 to U1 0W CLK0 U0, U1 Serial PD SCL A0 VDD Five 0.1uF Capacitors per SGRAM device To all SGRAMs A1 A2 SDA . . . Vss SBA VSS 45388 Warm Springs Blvd. Fremont, CA. 94539 Tel: (510) 668-2088 Fax: (510) 661-2788 support@unigen.com 2 of 3 Re-Tek- 436 UG4256G6412FQG0 Physical Dimension 144 Pin SGRAM SODIMM Module Units : Inches (millimeters) 2.66 (67.60) 2.50 (63.60) 2-R 0.078 Min (2.00 Min) 0.13 (3.30) 0.75 (19.20) 0.10 (2.50) 0.18 (4.60) 0.083 (2.10) 1.44 (36.80) Z 1.15 (3.70) Y 0.177 Max (4.5 Max) * Note 1 (3.20 Min) 0.125 Min _ 0.16 + 0.0039 _ (4.00 + 0.10) _ 0.06 + 0.0039 + (1.50 _ 0.1) (2.55 Min) 0.10 Min 0.79 (20.00) 0.24 (6.0) 2- O 0.07 (1.80) 1.100 (27.94) + 0.024 _ 0.001 + (0.60 _ 0.05) 0.01 Max (0.25 Max) _ 0.16 + 0.039 _ (4.00 + 0.10) _ 0.04 + 0.0039 + (1.00 _ 0.10) 0.03 TYP (0.80 TYP ) Detail Z Detail Y Tolerances : 0.005(.13) unless otherwise specified Units : Inches (Millimeters) 45388 Warm Springs Blvd. Fremont, CA. 94539 Tel: (510) 668-2088 Fax: (510) 661-2788 support@unigen.com 3 of 3 Re-Tek- 436 |
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