Harman Kardon DVD 39/230 Service Manual

Contents

Harman Kardon DVD 39/230 Service Manual Manual pdf 82 page image

ESMT M12L64164AElite Semiconductor Memory Technology Inc. Publication Date: Mar. 2003Revision: 1.7 1/44SDRAM 1M x 16 Bit x 4 BanksSynchronous DRAMFEATURESy JEDEC standard 3.3V power supplyy LVTTL compatible with multiplexed addressy Four banks operationy MRS cycle with address key programs- CAS Latency (2 & 3)- Burst Length (1, 2, 4, 8 & full page)- Burst Type (Sequential & Interleave)y All inputs are sampled at the positive going edge of thesystem clocky DQM for maskingy Auto & self refreshy 64ms refresh period (4K cycle)ORDERING INFORMATION54 Pin TSOP (Type II)(400mil x 875mil )PRODUCT NO. MAX FREQ. PACKAGEM12L64164A-6T 166MHzM12L64164A-7T 143MHzTSOP IIGENERAL DESCRIPTIONThe M12L64164A is 67,108,864 bits synchronous high data rate Dynamic RAM organized as 4 x 1,048,576 words by16 bits. Synchronous design allows precise cycle controls with the use of system clock I/O transactions are possible onevery clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the samedevice to be useful for a variety of high bandwidth, high performance memory system applications.PIN ASSIGNMENTTop View123456789101112131415161718192021222324252627V DDDQ 0V DD QDQ 1DQ 2V S S QDQ 3DQ 4V DD QDQ 5DQ 6V S S QDQ 7V DDL DQ MW EC ASR ASCSA 13A 12A 10 /APA 0A 1A 2A 3V DD545352515049484746454443424140393837363534333231302928V SSDQ15V S S QDQ14DQ13V DD QDQ12DQ11V S S QDQ10DQ 9V DD QDQ 8V S SN CU D Q MCLKCKEN CA 11A 9A 8A 7A 6A 5A 4V S Sharman/kardonDVD 39/DVD 49 service manualPage 82 of 113