|
Details, datasheet, quote on part number:WED3DG728V-D1
| |
| Part: | WED3DG728V-D1 |
| Category: | Memory => DRAM => SDR SDRAM => Modules |
| Description: | Density = 64MB ;; Organization = 8Mx72 ;; Components = 8Mx8 (9) ;; Speed MHZ = 100-133 ;; Volt = 3.3 ;; |
| Company: | White Electronic Designs Corporation |
| Datasheet: | Download WED3DG728V-D1 datasheet File size : 485 kB |
| Request For quote: | Find where to buy WED3DG728V-D1
|
| |
Datasheet text preview:
WED3DG728V-D1
64MB- 8Mx72 SDRAM UNBUFFERED
FEATURES
n Burst Mode Operation n Auto and Self Refresh capability n LVTTL compatible inputs and outputs n Serial Presence Detect with EEPROM n Fully synchronous: All signals are registered on the positive edge of the system clock n Programmable Burst Lengths: 1, 2, 4, 8 or Full Page n 3.3 volt 6 0.3v Power Supply n 144- Pin SO-DIMM JEDEC
DESCRIPTION
The WED3DG728V is a 8Mx72 synchronous DRAM module which consists of nine 8Mx8 SDRAM components in TSOP- 11 package, and one 2K EEPROM in an 8- pin TSSOP package for Serial Presence Detect which are mounted on a 144 Pin SODIMM multilayer FR4 Substrate.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
A0 A11 BA0-1 DQ0-63 CB0-7 CLK0,CLK1 CKE0 CS0 RAS CAS WE DQMB0-7 VDD VSS SDA SCL DNU NC
PIN NAMES
Address input (Multiplexed) Select Bank Data Input/Output Check bit (Data-in/data-out) Clock input Clock Enable input Chip select Input Row Address Strobe Column Address Strobe Write Enable DQM Power Supply (3.3V) Ground Serial data I/O Serial clock Do not use No Connect
White Electronic Designs Corp reserves the right to change products or specifications without notice. June 2003 Rev. 1 ECO #16358 1
White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
WED3DG728V-D1
FUNCTIONAL BLOCK DIAGRAM
WE S0 DQMB0 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 I/O I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O 3 I/O 4 I/O I/O 5 I/O I/O I/O 6 I/O 7 I/O S0 WE DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 DQMB4 DQM I/O I/O 0 I/O I/O 1 I/O I/O 2 I/O 3 I/O I/O 4 I/O I/O I/O 5 I/O I/O 6 I/O 7 I/O S0 WE
D0
D5
DQMB1 DQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 I/O I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O 3 I/O 4 I/O I/O 5 I/O I/O I/O 6 I/O I/O 7 S0 WE
DQMB5 DQM DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 I/O I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O 3 I/O I/O 4 I/O 5 I/O I/O 6 I/O I/O 7 I/O S0 WE
D1
D6
DQMB6 DQM CB0 CB1 CB2 CB3 CB4 CB5 CB6 CB7 I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O I/O 3 I/O 4 I/O I/O 5 I/O I/O 6 I/O I/O I/O 7 S0 WE DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 DQM I/O I/O 0 I/O 1 I/O I/O 2 I/O I/O 3 I/O I/O I/O 4 I/O 5 I/O I/O 6 I/O I/O 7 I/O S0 WE
D2
D7
DQMB2 DQM DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O I/O 3 I/O 4 I/O I/O I/O 5 I/O 6 I/O I/O I/O 7 S0 WE
DQMB7 DQM DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 I/O 0 I/O I/O 1 I/O I/O 2 I/O I/O I/O 3 I/O 4 I/O I/O 5 I/O I/O I/O 6 I/O 7 I/O S0 WE
D3
D8
DQMB3 DQM DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 I/O 0 I/O I/O 1 I/O I/O I/O 2 I/O I/O 3 I/O I/O 4 I/O 5 I/O I/O I/O 6 I/O I/O 7 S0 WE NOTE: DQ wiring may differ than described in this drawing, wiring ma differ described dr wing, ho however DQ/DQMB/CKE/S relationships must be er ust maintained as shown. sho
D4
*CLOCK WIRING CLOCK INPUT *CLK0 *CLK1 SDRAMS 4 OR 5 SDRAMS 4 OR 5 SDRAMS
RAS CAS CKE0
RAS: SDRAM D0-D8 CAS: SDRAM D0-D8 CKE: SDRAM D0-D8
BA0-BA1 A0-A11
BA0-BA1: SDRAM D0-D8 A0-A11: SDRAM D0-D8 SERIAL PD SCL SDA A0 A1 A2
VDD
D0-D8
VSS
D0-D8
White Electronic Designs Corp reserves the right to change products or specifications without notice.
White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
2
June 2003 Rev. 1 ECO #16358
WED3DG728V-D1
ABSOLUTE MAXIMUM RATINGS
Parameter Voltage on any pin relative to VSS Voltage on VDD supply relative to VSS Storage Temperature Power Dissipation Short Circuit Current Symbol VIN, Vout VDD, VDDQ TSTG PD IOS Value -1.0 ~ 4.6 -1.0 ~ 4.6 -55 ~ +150 9 50 Units V V °C W mA
Note: Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded. Functional operation should be restricted to recommended operating condition. Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS (Voltage Referenced to: VSS = 0V, TA = 0°C to +70°C)
Parameter Supply Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Input Leakage Current Symbol VDD VIH VIL VOH VOL ILI Min 3.0 2.0 -0.3 2.4 -10 Typ Max Unit 3.3 3.6 V 3.0 VDDQ+0.3 V 0.8 V V 0.4 V 10 µA Note 1 2 IOH= -2mA IOL= -2mA 3
Note: 1. VIH (max)= 5.6V AC. The overshoot voltage duration is £ 3ns. 2. VIL (min)= -2.0V AC. The undershoot voltage duration is £ 3ns. 3. Any input 0V £ VIN £ VDDQ Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs.
CAPACITANCE (TA = 23°C, f = 1MHz, VDD = 3.3V, VREF=1.4V 6200mV)
Parameter Input Capacitance (A0-A12) Input Capacitance (RAS,CAS,WE) Input Capacitance (CKE0) Input Capacitance (CLK0) Input Capacitance (CS0,CS2) Input Capacitance (DQM0-DQM7) Input Capacitance (BA0-BA1) Data input/output capacitance (DQ0-DQ63) Data input/output capacitance (CB0-CB7) Symbol CIN1 CIN2 CIN3 CIN4 CIN5 CIN6 CIN7 Cout Cout1 Min Max 15 15 15 20 15 15 15 22 22 Unit pF pF pF pF pF pF pF pF pF
White Electronic Designs Corp reserves the right to change products or specifications without notice. June 2003 Rev. 1 ECO #16358 3
White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
|
|
