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GPR323616A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous DRAM - Generalplus

भाग संख्या GPR323616A
समारोह Synchronous DRAM
मैन्युफैक्चरर्स Generalplus 
लोगो Generalplus लोगो 
पूर्व दर्शन
1 Page
		
<?=GPR323616A?> डेटा पत्रक पीडीएफ

GPR323616A pdf
GPR323616A
Table of Contents
PAGE
1. GENERAL DESCRIPTION .......................................................................................................................................................................... 4
2. FEATURES .................................................................................................................................................................................................. 4
3. BLOCK DIAGRAM ...................................................................................................................................................................................... 4
4. PIN DESCRIPTIONS ................................................................................................................................................................................... 5
4.1. PIN ASSIGNMENT (TSOP II TOP VIEW).................................................................................................................................................... 6
5. OPERATION MODE .................................................................................................................................................................................... 7
6. COMMANDS ............................................................................................................................................................................................... 8
6.1. BANKACTIVATE (RAS# = "L", CAS# = "H", WE# = "H", BS = BANK, A0-A10 = ROW ADDRESS)................................................................ 8
6.2. BANKPRECHARGE COMMAND(RAS# = "L", CAS# = "H", WE# = "L", BS = “V”, A10 = "L", A0-A9 = DON'T CARE) ..................................... 8
6.3. PRECHARGEALL COMMAND (RAS# = "L", CAS# = "H", WE# = "L", BS = DON'T CARE, A10 = "H", A0-A9 = DON'T CARE) ......................... 8
6.4. READ COMMAND(RAS# = "H", CAS# = "L", WE# = "H", BS= “V”, A9 = "L", A0-A7 = COLUMN ADDRESS) ................................................ 8
6.5. READ AND AUTOPRECHARGE COMMAND(RAS# = "H", CAS# = "L", WE# = "H", BS = “V”, A10 = "H", A0-A7 = COLUMN ADDRESS).......... 9
6.6. WRITE COMMAND(RAS# = "H", CAS# = "L", WE# = "L", BS = “V”, A10 = "L", A0-A7 = COLUMN ADDRESS)............................................. 9
6.7. WRITE AND AUTOPRECHARGE COMMAND (REFER TO THE FOLLOWING FIGURE) (RAS# = "H", CAS# = "L", WE# = "L", BS = “V”, A10 = "H",
A0-A7 = COLUMN ADDRESS)........................................................................................................................................................................ 10
6.8. MODE REGISTER SET COMMAND(RAS# = "L", CAS# = "L", WE# = "L", BS = “V”, A10 = “V”, A0-A9 = REGISTER DATA)......................... 10
6.9. NO-OPERATION COMMAND(RAS# = "H", CAS# = "H", WE# = "H") ....................................................................................................... 12
6.10.BURST STOP COMMAND(RAS# = "H", CAS# = "H", WE# = "L") ............................................................................................................ 12
6.11. DEVICE DESELECT COMMAND(CS# = "H")............................................................................................................................................ 12
6.12.AUTOREFRESH COMMAND (REFER TO FIGURES 3 & 4 IN TIMING WAVEFORMS)(RAS# = "L", CAS# = "L", WE# = "H",CKE = "H", BS =
“DONT CARE, A0-A9 = DON'T CARE) ............................................................................................................................................................ 12
6.13.SELFREFRESH ENTRY COMMAND (REFER TO FIGURE 5 IN TIMING WAVEFORMS)(RAS# = "L", CAS# = "L", WE# = "H", CKE = "L", A0-A9 =
DON'T CARE) ............................................................................................................................................................................................... 12
6.14.SELFREFRESH EXIT COMMAND (REFER TO FIGURE 5 IN TIMING WAVEFORMS)(CKE = "H", CS# = "H" OR CKE = "H", RAS# = "H", CAS# =
"H", WE# = "H") .......................................................................................................................................................................................... 12
6.15.CLOCK SUSPEND MODE ENTRY / POWER DOWN MODE ENTRY COMMAND (REFER TO FIGURES 6, 7, AND 8 IN TIMING WAVEFORMS, CKE =
"L") 13
6.16.CLOCK SUSPEND MODE EXIT / POWER DOWN MODE EXIT COMMAND (REFER TO FIGURES 6, 7, AND 8 IN TIMING WAVEFORMS, CKE= "H")
13
6.17.DATA WRITE / OUTPUT ENABLE, DATA MASK / OUTPUT DISABLE COMMAND (LDQM/UDQM = "L", "H")................................................... 13
7. ELECTRICAL SPECIFICATIONS ............................................................................................................................................................. 14
7.1. ABSOLUTE MAXIMUM RATING ............................................................................................................................................................... 14
7.2. RECOMMENDED D.C. OPERATING CONDITIONS (TA = - 0~70) ............................................................................................................ 14
7.3. CAPACITANCE (VDD = 3.3V, F = 1MHZ, TA = 25) .............................................................................................................................. 14
7.4. RECOMMENDED D.C. OPERATING CONDITIONS (VDD = 3.3V ± 0.3V, TA = 0~70)............................................................................... 14
7.5. ELECTRICAL CHARACTERISTICS AND RECOMMENDED A.C. OPERATING CONDITIONS (VDD = 3.3V±0.3V, TA = 0~70) (NOTE: 5, 6, 7, 8)15
8. TIMING WAVEFORMS .............................................................................................................................................................................. 17
8.1. AC PARAMETERS FOR WRITE TIMING (BURST LENGTH=4, CAS# LATENCY=2) ....................................................................................... 17
8.2. AC PARAMETERS FOR READ TIMING (BURST LENGTH=2, CAS# LATENCY=2) ........................................................................................ 18
8.3. AUTO REFRESH (CBR) (BURST LENGTH=4, CAS# LATENCY=2)............................................................................................................ 19
8.4. POWER ON SEQUENCE AND AUTO REFRESH (CBR) .............................................................................................................................. 20
8.5. SELF REFRESH ENTRY & EXIT CYCLE................................................................................................................................................... 21
© Generalplus Technology Inc.
Proprietary & Confidential
2
OCT. 07, 200
Version: 1.0

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