Standard Product Summary of Differences between UT1553B/BCRT and UT1553B/BCRTB Application Note Cobham.com/HiRel June 10, 2016 The most important thing we build is trust Table 1: Cross Reference of Applicable Products PRODUCT NAME BCRT BCRTB 1.0 MANUFACTURER PART NUMBER UT1553B/BCRT UT1553B/BCRTB SMD # DEVICE TYPE INTERNAL PIC NUMBER 5962-88628 5962-88628 01 02 UP04L & FB15A JD14A Overview In 2012, Cobham exhausted its inventory of UT1553B/BCRT product. To minimize the obsolescence impact on customers, Cobham migrated the product to a new fabrication facility. One objective in the migration was to maintain FORM, FIT, and FUNCTION with the original product. This application notes describes the differences between the obsolete and migrated versions. 2.0 Technical Background The goal of the BCRTB development was to provide a FORM, FIT, FUNCTIONAL replacement to the obsolete BCRT. Differences in the new process resulted in some minor AC and DC electrical exceptions. The following sections summarize the product differences. 2.1 Technology Differences Table 2. Technology and Capability Differences Technical Feature Fab Process TID SEU (no upsets) SEL (no latch-up) QML Package 950009-000 Version 1.0.0 UT1553B/ BCRT 1.5 µm CMOS 1E6 rad(Si) ≤ 55 MeV/mg/cm2 ≤ 80 MeV/mg/cm2 Q&V 84-PIN: Ceramic LCC, PGA, QFP 1 UT1553B/ BCRTB 0.6 µm CMOS None NA NA Q 84-PIN: Ceramic PGA, QFP Cobham Semiconductor Solutions Cobham.com/HiRel Parametric Differences 2.2 Table 3. DC Electrical Parametric Differences Parameter Symbol High level input voltage, TTL Inputs Inputs with pull-up resistors VIH IIN UT1553B/BCRT (Dev. Type 01) UT1553B/BCRTB (Dev. Type 02) Affected Specification MIN MAX MIN MAX SMD 2.0 -550 -80 2.2 -900 -150 X X Data Sheet X X Units V µA Table 4. AC Electrical Parametric Differences Parameter Symbol DMACK ↓ to DMAR High Impedance tSHL1 TSCTL ↓ to ADDRESS valid tPZL1 UT1553B/BCRT (Dev. Type 01) UT1553B/BCRTB (Dev. Type 02) Affected Specification SMD Data Sheet Units MIN MAX MIN MAX 0 10 -12 10 X ns X ns 0 40 -15 40 THMC1 +10 THMC2 -15 THMC1 -15 THMC2 -10 THMC1 +20 THMC2 +10 X ns TSHL1 THMC1 -10 THMC2 -10 X ns THLZ2 THMC1 -10 THMC1 -10 THMC1 -15 THMC1 +20 X ns TSHL1 THMC2 -10 THMC2 +5 THMC2 -10 THMC2 +15 X ns RWR ↓ to DATA valid TOOZL1 0 30 -5 30 X ns RWR ↑ to DATA High Impedance THLZ1 THMC1 -10 THMC1 +10 THMC1 -15 THMC1 +20 X ns THLZ2 THMC1 -10 THMC1 -10 THMC1 -15 THMC1 +20 X ns tHLH2 5 50 0 50 X ns DMACK ↓ to DMAR High Impedance tSHL1 0 10 -12 10 X ns DMAG ↓ to STDINTL ↓ tOOHL2 8xMCLK 10xMCLK 8xMCLK 12xMCLK X µs RWR / RRD ↑ to DMACK ↑ ADDRESS valid to RRD ↓ (Address Setup) RRD ↑ to ADDRESS High Impedance (ADDRESS Hold) ADDRESS valid to RWR ↓ (ADDRESS Setup) (DATA Hold) RWR ↑ to ADDRESS High Impedance (ADDRESS Hold) RD + CS ↑ to DATA High Impedance (DATA Hold) 3.0 tHLH2 X Summary and Conclusion Cobham has successfully developed a practical replacement solution to the obsolete UT1553B/BCRT. Due to the necessary underlying technology change, some parametric differences exist. This application note summarizes all parametric deviations from the original specification while identifying the related technical document (i.e. SMD or DATASHEET) that is affected by the change. 950009-000 Version 1.0.0 2 Cobham Semiconductor Solutions Cobham.com/HiRel REVISION HISTORY Date Rev. # 06/10/2016 1.0.0 950009-000 Version 1.0.0 Change Description Initial Release Author TLM 3 Cobham Semiconductor Solutions Cobham.com/HiRel Cobham Semiconductor Solutions This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export of this product from the United States. Cobham Semiconductor Solutions 4350 Centennial Blvd Colorado Springs, CO 80907 E: [email protected] T: 800 645 8862 Aeroflex Colorado Springs Inc., DBA Cobham Semiconductor Solutions, reserves the right to make changes to any products and services described herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data 00-00-00-000 sheet is current before using this product. Aeroflex does not assume4 any responsibility or liability arising outSemiconductor of the applicationSolutions or use Cobham of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the Cobham.com/HiRel purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties.