w3e16m64s-xbx White Electronic Designs Corporation, w3e16m64s-xbx Datasheet
w3e16m64s-xbx
Related parts for w3e16m64s-xbx
w3e16m64s-xbx Summary of contents
Page 1
... Two data mask (DM) pins for masking write data Programmable IOL/IOH option Auto precharge option Auto Refresh and Self Refresh Modes Commercial, Industrial and Military Temperature Ranges Organized as 16M x 64 Weight: W3E16M64S-XBX - 2 grams typical * This product is subject to change without notice. 11.9 66 22.3 TSOP Area ...
Page 2
... DQ55 DQ58 CCQ CCQ 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX V V DQ25 DQ27 DQ29 V CCQ CCQ DQ22 DQ20 DQ18 DQ31 DQ24 DQ26 DQ28 DQ16 SS SS ...
Page 3
... Y CLK # CLK CKE CKE CS DQML DQML 3 DQ DQMH DQMH 3 DQSL DQSL 3 DQSH DQSH 3 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX RAS # 0 CAS # RAS # 1 CAS ...
Page 4
... READ or WRITE command are used to select the starting column location for the burst access. February 2005 Rev. 4 W3E16M64S-XBX Prior to normal operation, the SDRAM must be initialized. The following sections provide detailed information covering device initialization, register defi nition, command descriptions and device operation. ...
Page 5
... The programmed burst length applies to both READ and WRITE bursts. February 2005 Rev. 4 W3E16M64S-XBX BURST TYPE Accesses within a given burst may be programmed to be either sequential or interleaved; this is referred to as the burst type and is selected via bit M3. ...
Page 6
... Violating either of these requirements could result in unspecifi ed operation. 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX TABLE 1 – BURST DEFINITION Order of Accesses Within a Burst Starting Column Address ...
Page 7
... Operations already in progress are not affected. LOAD MODE REGISTER The Mode Registers are loaded via inputs A0-12. The LOAD MODE REGISTER command can only be issued when all banks are idle, and a subsequent executable command cannot be issued until t 7 W3E16M64S-XBX DEFINITION ...
Page 8
... The PRECHARGE command is used to deactivate the open row in a particular bank or the open row in all banks. The bank(s) will be available for a subsequent row access a specifi ed time (t 8 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX RAS# CAS# WE ...
Page 9
... A simple algorithm for meeting both refresh and DLL requirements is to apply NOPs for 200 clock cycles before applying any other command. * Self refresh available in commercial and industrial temperatures only. 9 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX between updates. AC later. , because XSNR ...
Page 10
... Input Capacitance: All other input-only pins -40 to +85 °C Input/Output Capacitance: I/Os -55 to +150 °C Max Units Notes 14.5 °C/W 1 10.0 °C/W 1 5.4 °C White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX CAPACITANCE (NOTE 13) Symbol Max CI1 CI2 8 CIO 12 Unit ...
Page 11
... CKE = HIGH; Address and other control CK CK for DQ, DQS, and DM (51 RAS = 0mA (22, 48) OUT 7.8125µs (27, 50 (MIN White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX (NOTES 1, 6) Symbol Min Max V 2.3 2 2.3 2.7 CCQ 0. 0.04 IH REF REF V -0 ...
Page 12
... WTR DQSQ t 70.3 REFC t 7.8 REFI t 0 VTD t 75 XSNR t 200 XSRD 12 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX 250 Mbps CL2.5 200 Mbps CL2.5 200 Mbps CL2 150 Mbps CL2 Min Max Min Max Units -0.8 +0.8 -0.8 +0.8 ns 0.45 0.55 0.45 0. 0.45 0.55 0.45 0.55 ...
Page 13
... This limit is actually a nominal value and does not result in a fail value. CKE is HIGH during REFRESH command period (t standby). FIGURE B – PULL-UP CHARACTERISTICS Maximum Nominal high Nominal low Minimum 2.0 2.5 13 W3E16M64S-XBX . REF stabilizes. Exception: during the period REF stabilizes, CKE ≤ 0 recognized as LOW. REF CCQ . TT ...
Page 14
... FIGURE D – PULL-UP CHARACTERISTICS Maximum Nominal high Nominal low Minimum 2.0 2.5 14 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX level and the referenced CC (MAX +1.5V for a pulse width ≤ 3ns and the pulse width IH CCQ must track each other. (MAX) will prevail over t (MAX (MAX) condition ...
Page 15
... ∅ 219 x 0.762 (0.030) NOM 19.05 (0.750) NOM ORDERING INFORMATION 16M XXX B X -55°C to +125°C -40°C to +85°C 0°C to +70°C 15 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com W3E16M64S-XBX 21.1 (0.831) MAX 0.61 (0.024) NOM 2.03 (0.080) MAX ...
Page 16
... Changes (Pg. 1, 11, 16) 4.1 Changes 12mA minimum OH OL 4.2 Update I Specifi cations table values CC February 2005 Rev. 4 W3E16M64S-XBX Release Date Status December 2002 May 2003 November 2003 September 2004 February 2005 16 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com Advanced Advanced ...