64Mb / 4M x 16 bit Synchronous DRAM
Description
AS4C4M16S
Revision History AS4C4M16S- 54PIN 400 MIL PLASTIC TSOP II PACKAGE
Revision Rev 1.
0 Rev 2.
0 Details Preliminary datasheet Removed 6TAN –– automotive temp page 1 and page 52 (see separate datasheet for this option) Added 6TCN – 166MHz clock – commercial temp page 1 and page 52 Added in temperature range to page 1 * Operating temperature range - Commercial (0 ~ 70°C) - Industrial (-40 ~ 85°C) Date February 2011 May 2014
May 2014 May 2014
Alliance Memory Inc.
551 Taylor Way, San Carlos, CA 94070 TEL: (650) 610-6800 FAX: (650) 620-9211 Alliance Memory Inc.
reserves the right to change products or specification without notice.
FEBRUARY 2011
AS4C4M16S
64Mb / 4M x 16 bit Synchronous DRAM (SDRAM)
Alliance Memory Features
• • • • • • Fast access time from clock: 5.
4/5.
4 ns Fast clock rate: 166/143 MHz Fully synchronous operation Internal pipelined architecture 1M word x 16-bit x 4-bank Programmable Mode registers - CAS Latency: 2, or 3 - Burst Length: 1, 2, 4, 8, or full page - Burst Type: interleaved or linear burst - Burst stop function Auto Refresh and Self Refresh 4096 refresh cycles/64ms CKE power down mode Single +3.
3V ± 0.
3V power supply Interface: LVTTL 54-pin 400 mil plastic TSOP II package - Pb free and Halogen free
Rev2.
0 May 2014 Table1.
Key Specifications
AS4C4M16S tCK3 Clock Cycle time(min.
) tAC3 Access time from CLK(max.
) tRAS Row Active time(min.
) tRC Row Cycle time(min.
) - 6/7 6/7ns 5.
4/5.
4ns 42/49 ns 60/63 ns Package TSOP II TSOP II TSOP II
Table 2.
Ordering Information
Part Number AS4C4M16S-6TCN AS4C4M16S-6TIN AS4C4M16S-7TCN Frequency 166MHz 166MHz 143MHz
• • • • • •
T: indicates TSOPII Package, N: indicates Pb and Halogen Free for TSOPII Package
Figure 1.
Pin Assignment (Top View)
VDD DQ0 VDDQ DQ1 DQ2 VSSQ DQ3 DQ4 VDDQ DQ5 DQ6 VSSQ DQ7 VDD LDQM WE# CAS# RAS# CS# BA0 BA1 A10/AP A0 A1 A2 A3 VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30...
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