April 16, 2007 Dear Customer: The purpose of this letter is to update you on the die inventory of our 5V 4M SRAM Quantified Commercial-Off-The Shelf (QCOTSTM) used in the UT9Q512 and UT9Q512K32 products. In June 2005 we announced the finite supply of the commercial die source would exhaust in 6 to 8 months. The die inventory has exhausted. A very small amount of packaged units remain in finished goods inventory. The shielded 36-lead CFP is now obsolete. Products affected by the die are listed below. Product Part Number Standard Microcircuit Package Drawing 5V 4M SRAM UT9Q512 5962-00536 36-lead CFP 36-lead CFP1 (Shielded) 5V 16M SRAM MCM UT9Q512K32 5962-01511 68-lead CQFP Note: 1. The 36-lead Shielded CFP has reached End of Life (EOL). As an alternative SRAM solution, Aeroflex offers a 3-volt (3V) 4M and 16M SRAM, UT8Q512 and UT8Q512K32 QCOTS SRAM. Data Sheets for the 3V QCOTS SRAM solutions can be found at www.aeroflex.com/QCOTS. Product 3V 4M SRAM In Production UT8Q512 Standard Microcircuit Drawing 5962-99607 3V 16M SRAM MCM New 5V 4M SRAM 5V 16M SRAM MCM In Production UT8Q512K32 5962-01533 In Production UT9Q512E 5962-005362 In Development UT9Q512K32E 5962-015113 Note: 1. 2. 3. Status Part Number The 36-lead Shielded CFP has reached End of Life (EOL). Added as devices types 05 and 06 to the current SMD. It will be added as device type 02 to the current SMD. Lead Time 6 to 8 wks 6 to 8 wks 6 to 8 wks 2Q07 Package 36-lead CFP 36-lead CFP1 (Shielded) 68-lead CQFP 36-lead CFP 68-lead CQFP Aeroflex has completed development of a 5V 4M replacement based on existing Aeroflex development memory technology. Production shipments are now available for the 5V 4M replacement SRAM. The following AC and DC Electrical Characteristic differences have been verified. AC and DC Electrical Characteristic Differences (4M SRAM) Function UT9Q512 UT9Q512E o o IDD (SB) @ 0MHz (-55 C & 25 C) 6mA 10mA IDD (SB) @ 0MHZ (125oC) 12mA 45mA IDD 180mA@40MHz 76mA@50MHz tAVQV 25ns 20ns tETQV 25ns 20ns tWHQX 5ns (min) 4ns (min) tWHAX 0ns (min) 2ns (min) Aeroflex is in the developmental process for the 5V 16M MCM replacement based on existing Aeroflex development memory technology. The 5V 16M MCM SRAM replacement products will be available in July 2007. The following AC and DC Electrical and Temperature Characteristic differences are projected and will be verified prior to product release. AC and DC Electrical Characteristic Differences (16M SRAM) Function UT9Q512K32 UT9Q512K32E IDD2 (SB) @ 0MHz (-40oC & 25oC) 24mA 40mA IDD2 (SB) @ 0MHZ (125oC) 48mA TBD tGLQX 3ns (min) 0ns (min) tWHAX 0ns (min) 2ns (min) tWHQX 5ns (min) 4ns (min) tWHDX 0ns (min) 2ns (min) Note: 1. TBD - will be less than 180mA Temperature Range Difference (16M SRAM) Function UT9Q512K32 16M SRAM -40oC to 125oC UT9Q512K32E -40oC to 105oC Aeroflex packaging engineers have identified fit and form differences in both the 4M and 16M packages. A comparison of the package differences is shown below. For application questions regarding fit, form, and function of either the current 3V QCOTS SRAM or the new 5V SRAM replacement, please contact Don Cooper at (719) 594-8148 or e-mail [email protected]. Fit and Form Differences 4M Package Differences Dimension Length Width Height Note: 1. UT9Q512 .920 + .010 .480 + .005 .124 + .013 UT9Q512E .920 + .010 .580 + .005 .117 + .013 The 4M SRAM pin-out is identical both in numbering and functional parameter location. 16M Package Differences Dimension Length (ceramic) Width (ceramic) Height (includes lids) UT9Q512K32 .880 + .009 .880 + .009 .205 + .016 UT9Q512K32E .980 + .009 .980 + .009 .209 + .020 Note: 1: The 16M SRAM pin-out is identical in functional parameter location while the numbering location has been changed as shown in the following figure. UT9Q512K32 SRAM Pin-out UT9Q512K32E SRAM Pin-out Aeroflex provides this product information to allow customers to plan modifications in advance of this product release. If you have any questions please contact me at (719) 594-8252 or e-mail [email protected]. Aeroflex looks forward to continued business with your company. Regards, Anthony Jordan Director of Standard Products Aeroflex Colorado Springs