HYUNDAI HY534256A Series 256K x 4-bit CMOS DRAM DESCRIPTION The HY534256A is the 2nd generation and fast dynamic RAM organized 262,144 x 4-bit. The HY534256A utilizes Hyundais CMOS silicon gate process technology as well as advanced circuit techniques to provide wide operating margins to the users. Multiplexed address inputs permit the HY534256A to be packaged in a standard 300mil 20 pin PDIP 20/26 pin SOU. The package size provides high system bit densities and is compatible with widely available automated testing and insertion equipments. System oriented feature includes single power supply of SV 10% tolerence and direct interfacing capability with high performance logic families such as Schottky TTL. FEATURES Low power dissipation Max. battery back-up 2.2mW (L-Part) Max. CMOS standby 1.imW (L-part) 5.5mW Max. TTL standby 11.6mW Max. operating Speed Power 60 495mw 70 440mWw 80 385mW Single power supply of 5V+ 10% TTL compatible inputs and outputs + Fast access Time Speed tRAC tcAC +PC 60 60ns | 15ns 40ns 70 70ns | 20ns 40ns 80 80ns | 20ns 45ns Fast page mode operation Read-Modify-Write capability CAS-betore-RAS, RAS-only, Hidden refresh 512 refresh cycles / 64ms (L-part) 512 refresh cycles / 8ms PIN DESCRIPTION RAS Row Address Strobe CAS Column Address Strobe WE Write Enable OE Output Enable A0-A8 Address Input DQ0-DQ3 Data Input/Output vec Power (+ 5V) Vss Ground PIN CONNECTION BLOCK WE o- ~~ A0 Oo ALO AZo AQ o Ad O- AS O- AG O- Av oO ABD amanneo oomnooY RAS 0 en vss Hoga 1 paz CAS D OE Das DAZ LAG DAS Nas 1 2 3 4 5 6 7 8 3 1 PDIP DIAGRAM - l>- pee SI CAS O | _ ~~) Feouumn >| PREDECODER COLUMN CLOCK REFRESH CONTAOLLER REFRESH COUNTER 3) ROW PREDECODER 2 vaoig 26hvss Raid 2 25 90aQ3 wed 3 24 DDQ2 RAS( 4 23 DCAS NCQ 22 POE Aog 9 7a aa Aig 10 17 DA7 A2q 11 16 DAG A3Q 12 15 PAS vect{ 13 14 plas SO! Dao bai baz aQ3 ROW DECODER n'a DATA IN BUFFER DATA OUT o BUFFER i OE COLUMN DECODER SENSE AMP VOGATE MEMORY ARRAY 262144x 4 7 CLOCK - GENERATOR [77 SUBSTRATE BIAS GENERATOR veo vss This document is a general product description and is subject to change without notice. Hyundai electronics does not assume any responsibility for use of circuits described. No patent licences are implied. 1AB06-10-MAY95 M 4675088 coo4OLD 775 25HYUNDAI ABSOLUTE MAXIMUM RATINGS HY534256A Series SYMBOL PARAMETER RATING UNIT TA Ambient Temperature Oto 70 C TSTG Storage Temperature 55 to 150 C VIN, VOUT Voltage on Any Pin Relative to Vss -1.0 to 7.0 v Voc Voltage on Vcc Relative to Vss -1.0 to 7.0 Vv los Short Circuit Output Current 50 mA Po Power Dissipation 0.60 Ww | _TSOLDER Soldering Temperatures Time 260 10 Cesec NOTE : Operation at or above Absolute Maximum Ratings can adversely affect device reliability. RECOMMENDED DC OPERATING CONDITIONS (TA= 0C to 70C) SYMBOL PARAMETER MIN. TYP. MAX. UNIT Voc Supply Voltage 45 5.0 5.5 Vv | _VIH Input High Voltage 2.4 - Vec+ 1.0 Vv [VIL Input Low Voltage -1.0 - 08 V NOTE : All voltages are referenced to Vss. 26 Mm 4675086 OOO40b] LOL 1AB06-10-MAY95QHYUNDAI DC CHARACTERISTICS (Ta= 0C to 70C, Vec= 5V+ 10%, Vss= OV, unless otherwise noted.) HY534256A Series SYMBOL | PARAMETER TEST CONDITIONS SPEED | MIN. | MAX. | UNIT] NOTE POWER Iu Input Leakage Current Vsss VINS Vcc -10} 10] yA (Any Input Pins) All other pins not under test= VSS ILO Output Leakage Current | VSS< VOUTS Vcc -10| 10) pA (High Impedance State) | RAS & CAS at Vin icc1 | Voc Supply Current, tRC= tAc (min.) 60 -| 90) mA} 1,2,3 Operating 70 -| 80 80 -| 70 Icce | Vcc Supply Current, RAS & CAS at VIH, - 2| mA TTL Standby other inputs> Vss Icc3 | Voc Supply Current, tRc= tRc (min.) 60 -| 90] mA} 1,3 RAS-only refresh 70 -} 80 80 -| 70 Icc4 | Vcc Supply Current, tPc= tPc (min.) 60 -| 70} mA| 1,2,3 Fast Page mode 70 -| 60 80 -| 50 Iccs |} Vcc Supply Current, RAS & CAS2 Vec-0.2V - 1| mA CMOS Standby L-part -} 02 5 lece | Vcc Supply Current, tRC= tRc (min.) 60 90; mA} 1,3 CAS-betore-RAS retresh 70 - | 80 80 -| 70 Icc7 | Vcc Supply Current, tAc= 125ps, {RAS -| 300 | pA | 1,4,5 Battery Back Up CAS= CBR cycling or 0.2V 300ns (L-part only) OE & WE= Vec-0.2V, AO-A8= Vcc-0.2V or 0.2V tRASS - | 400 DQO0-DQ3= 0.2V, Vec-0.2V ips or open VoL | Output Low Voltage loc= 4.2mMA -| 04; V VOH | Output High Voltage IOH= 5MA 2.4 -| Vv NOTE : 1. 2 3. 4. Only tRagmax.}= tps is applied to refresh of battery backup but tRagmax.)= 10us is applied to normal func- a Icc1, Icca, Icc4, Iccs and Icc7 depend on cycle rate. . !oc1 and Icca depend on output loading. Specified values are obtained with the output open. It depends on user whether column address is changed or not at least once while RAS= Vit and CAS= VIH. tional operation . Iccs(max.}= 0.2mA and Icc7 are applied to L-part only{ HYS34256ALS and HY534256ALJ). me 4675088 0004062 546 1AB06-10-MAY95 27HYUNDAI HY534256A Series AC CHARACTERISTICS (TA= 0C to 70C, Vec= 5V+ 10%, VSs= OV, unless otherwise noted.) NOTE : 1, 2,3 HY534256AS/AJ/ALS/ALJ # | SYMBOL PARAMETER 60 -70 -80 UNIT | NOTE | | MIN. TMAX. [ MIN. [MAX. | MIN. | MAX. 1) tRC Random Read or Write Cycle Time 110 - | 130 - | 150 - | ns 2 | tRWC Read-Modify-Write Cycle Time 160 - | 185 - | 205 -| ns 3; tPc Fast Page Mode Cycle Time 40 -+ 40 -| 45 - | ns 4 tPpRwc | Fast Page Mode Read-Modity-Write 90 -| 98 -| 100 - | ns Cycle Time 5 | trac Access Time frorn RAS -| 60 -| 70 -| 80; ns {49,10 6 | tcac Access Time from CAS -| 15 -| 20 -| 20] ns | 49 7 | tAA Access Time from Column Address -| 30 -| 35 -} 40] ns | 4,10 8 | tCPA Access Time from CAS Precharge a) -| 38 -| 40] ns 4 9, tclz CAS to Output Low Impedance 0 - 0 - 0 - | ns 4 10 | torr Output Buffer Turn-off Delay 0] 20 0} 20 0; 20; ns 5 11] tT Transition Time (Rise and Fall) 3; 50 3{ 50 3] 50! ns 3 12 | tAP RAS Precharge Time 40 - | 50 -{| 60 - | ns 13 | tRAS RAS Pulse Width 60 | 10K ; 70] 10K; 80] 10K! ns 14 | trasp_| RAS Pulse Width (Fast Page Mode) 60 HOOK ; 70 100K | 80 100K! ns 15 | tRSH RAS Hoid Time 15 -; 20 -| 20 - | ns 16 | tcsH CAS Hold Time 60 -| 70 -| 80 -{ ns 17 | tcas CAS Pulse Width 15 | 10K; 20) 10K! 20) 10K/ ns 18 | tRoD RAS to CAS Delay 20! 45/ 20] 50] 20] 60) ns 9 19 | tRAD RAS to Column Address Delay Time 15| 30; 15| 35] 15] 40] ns 10 20 | tcRP CAS to RAS Precharge Time 5 - 5 - 5 - | ns 21 | tcp CAS Precharge Time 10 -| 10 -| 10 - | as 22 | tASR Row Address Set-up Time 0 - 0 - 0 -| ons 23 ; tRAH Row Address Hold Time 10 -| 10 -| 10 - | ns 24 tasc Column Address Set-up Time 0 - 0 - 0 -| ns 25 | tCAH Column Address Hold Time 15 -; 15 -| 15 - | ns 26 | tAR Column Address Hold Time from RAS 45 -} 50 -| 55 -| ons 27 | tRAL Column Address to RAS Lead Time 25 -| 35 -} 40 -} ns 28 | tRcs Read Command Set-up Time 0 - 0 - 0 -| ns 29 | tRCH Read Command Hold Time 0 - 0 - 0 -] ns 6 Referenced to TAS 30 | tRRH Read Command Hold Time 0 - 0 - 0 - | as 6 Referenced to RAS 31 | twcH Write Command Hold Time 10 -; 15 -| 15 -{ ns 32 | twoR | Write Command Hold Time from RAS 45 -| 50 -| 55 -{ ns 33 | twP Write Command Pulse Width 10 -}| 15 -} 15 -| ns /34 | tRWL Write Command to RAS Lead Time 15 -| 20 -|{ 20 - | ns 35 | tCWL Write Command to CAS Lead Time 15 -| 20 -| 20 - | ns 36 | tbs Data-in Set-up Time 0 - 0 - 0 -| ns 7 37 | tDH Data-in Hold Time 15 -| 15 -; 18 - | ns 7 38 | tDHR Data-in Hold Time Referenced to RAS 45 -| 50 -;) 55 -} ns 39 | tREF Refresh Period (512 cycles) - 8 - 8 - 8 {| ms L-Part -| 64 -| 64 -| 64 11 40 | twcs _ | Write Command Set-up Time Oo}; -; 0 -| 0 -| ns | 8 Me 4675086 OOO4Ob3S 484 28 1AB06-10-MAY95HYUNDAI AC CHARACTERISTICS HY534256A Series (continued) HY534256AS/AJ/ALS/ALJ # | SYMBOL PARAMETER - -70 -80 UNIT | NOTE MIN. [MAX. { MIN. [MAX | MIN. [MAX. 41 | tcwo | CAS to WE Delay Time 45 - | 50 - | 50 - | ns 8 42 | tawo_ | RAS to WE Delay Time 90 - | 100 aT) - | ns 8 43 | tawp | Column Address to WE Delay Time 60 - | 65 - | 70 - | ns 8 44 | tcsA CAS Set-up Time (CBR Cycle) 5 - 5 - 5 - | ns 45) tCHR CAS Hold Time (CBR Cycle) 10 - | 10 - | 10 - | ns 46 | trec RAS to CAS Precharge Time 0 - 0 - 0 - | ns 47 | tcPT CAS Precharge Time (CBR Counter Test) | 40 - | 40 - | 40 - | ns 48 | tROH RAS Hold Time Reference to OE 10 -} 10 - | 15 - | ns 49 | toEA | OE Access Time - | 15 - | 20 - | 20 | ns 50 | toep OE to Data Delay 20 - | 20 - | 20 - | ns 51 | toez Output Buffer Turn Off Delay Time from OH of 15 0} 15 0} 20); ns 5 52 | tOEH OE Command Hold Time 20 - | 20 - | 20 - | ns 53 | tcpwo | WE Delay Time from CAS Precharge 60 - | 65 - | 70 - | ns 8 54 tRHcp | RAS Hold Time from CAS Precharge 30 - | 35 - | 35 - | ns Mm 4675088 GOO4Ob4 310 1AB06-10-MAY95 29HYUNDAI HY534256A Series NOTE : 1. An initial pause of 200us is required atter power-up followed by 8 RAS cycles before proper device operation is achieved. In case of using internal refresh counter, a minimum of 8 GAS-before-RAS initialization cycles instead of 8 RAS cycles are required. . AC measurements assume tT= 5ns. . ViH(min.) and ViL(max.) are reference levels for measuring timing of input signals. Also, transition times are measured between ViH and VIL. . Measured with a load equivalent to 2 TTL loads and 100pF. . {OF F(max.) and define the time at which the output achieves the open circuit condition and is not referenced to output voltage levels. . Either tRCH or tRAH must be satisfied for a read cycle. . These parameters are referenced to TAS leading edge in early write cycles and to WE leading edge in Read- Modify-Write cycles. . {WCS, tRWD, 1CWD, tAWD and tCPWD are not restrictive operating parameters. They are included in the data sheet as electrical characteristics only. If twcs> twcs(min.), the cycle is an early write cycle and data out pin will remain open circuit (high impedance) through the entire cycle. If tawoz tRWO(min.), towbe tcwo(min.), tawo= tawD{min.), and tcpwoe tcPwo(min.), the cycle is a Read-Modify-Write cycle and data out will contain data read from the selected cell. If neither of the above sets of conditions is satisfied, the condition of the data out (at access time) is indeterminated. 9. Operation within the trcp{max.) limit insures that tRac(max.) can be met. tRcD(max.) is specified as a refer- ence point only. If tRcD is greater than the specified taco(max.) limit, then access time is controlled by tCAc. 10. Operation within the trao(max.) limit insures that tRAc(max.) can be met. tRAD(max.) is specified as a refer- ence point only. If tRAD is greater than the specified tRAp(max.) limit, then access time is controlled by tAA. 11.tRERmax.)= 64ms is applied to L-part only (HY534256ALS and HY534256ALJ). N ob Go PN oo CAPACITANCE A= Vec= 5V+ Cin1 CIN2 Cout Mm 4675088 OOO40bS 2b? Mm 30 1AB06-10-MAY95HYUNDAI HY534256A Series TIMING DIAGRAM READ CYCLE A0-8 COLUMN vo! ba08 ewww VALIC DATA OUT EARLY WRITE CYCLE A0-8 COLUMN ba0-3 OO VALID DATA IN Vv CM 4B 7508S COOOL 193 1AB06-10-MAY95 31HYUNDAI WRITE CYCLE (OE CONTROLLED WRITE) CAS A0-8 VIH-y DaQ0-3 HIGH-Z ViL-y READ-MODIFY-WRITE CYCLE VIH- RAS viL -. VIK- CAS VIL VIH A0-8 COLUMN vil~, VIH= WE VIL = _ VIH OE viL- VIHIVOH - 0ao-3 VILAVOL - 32 VALID DATA IN 1OEA(49) VALID DATA OUT HY534256A Series VALID DATA IN MM 4675088 OOOO? OCT 1AB06-10-MAY95oH YUNDAI HY534256A Series FAST PAGE MODE READ CYCLE CAS A0-8 COLUMN 1ARH(30) DaQ03 S VALID DATA VALID DATA OUT VALID DATA OUT FAST PAGE MODE EARLY WRITE CYCLE RAS CAS A0-8 COLUMN ba0-3 VALID DATA IN VALID DATA IN VALID DATA IN _____________ MM 4675088 OOO4ObS Thb MH 1AB06-10-MAY95 33YUNDAI HY534256A Series FAST PAGE MODE READ-MODIFY-WRITE CYCLE VIH vIL A0-8 COLUMN COLUMN COLUMN tCWL(35) tRWL{(34) tCLZ(9) tCLZ(9) tCL2(9) VIHIVOH- oa03 IN IN VIL/VOL RAS-ONLY REFRESH CYCLE tRO(1} tRAS(13) IRP(12) ae N f LL pe tAPO(46) an VIH-- CAS vib / \/ 1ASR(22) | | thaHigs) ae) ren MLL NOTE : OE and WE = "H"orL" Mm 4675088 CO040b9 ITe 34 4AB06-10-MAY95HYUNDAI HY534256A Series CAS-BEFORE-RAS REFRESH CYCLE tRP{i2} tRAS(43) . tAP(12) ae / N / \ a L 7 TTL. TTL LL LLL tOFF(10) Rar vou Z NOTE : AO-8 and OE = "H"or"L" HIDDEN REFRESH CYCLE (READ) Dan-3 Mm 4675066 0004070 614 1AB06-10-MAY95 3536 HYUNDAI HIDDEN REFRESH CYCLE (WRITE) COLUMN VALID DATA IN Me 46750686 OOO4071 SSO HY534256A Series 1AB06-10-MAY95HYUNDAI HY534256A Series CAS-BEFORE-RAS REFRESH COUNTER TEST CYCLE VIH~ RAS viu- VK CAS vit - VIH A0-8 COLUMN VIL READ CYCLE VviH~ VIL~, VIHA OE VIL VOH DaQ0-3 VOL HIGH-Z VALID DATA OUT WRITE CYCLE {OHQ?) ViH-~- oa03 ep HIGH-2 VIL- VALID DATA IN READ-MODIFY-WRITE CYCLE tOwO(4t} . VIH VIL~ Vid vit tCL2(9) VIHVOH ~ HIGH-Z VIL/VOL OMB 475088 COONOPe 497 MM 41AB06-10-MAY95 37HYUNDAI PACKAGE INFORMATION 300 mil 20 pin Dual In Line Package (S) meno eo oa pd a a) a D O CTruCtT eTtTyTCa eI Cro Cou 0.977(24.8 16) 0.957(24.308) D.065(1.650) _ 0,1008SC(2.540) 0.050(1.270) 0.160(4.572 0.155(3.997) | Ly. I Ty |_____o.9380.889)_ 0.050(1.270) _ 0.021(0.533) f 0.020(0.808) "030(0. TIO, 0.140(3.556) 0.030(0.762} 0.016(0.408) o1zo(a aaah 300 mil 20/26 pin Thin Small Outline Package (J) nooo mmo | oar eek | o.340(8.636) 0.679(17.247) I 0.671(17.043) 0.392{8.433) | 0.905(7.747) 0,092(0.813) 0.298(7.493) 1 [oazsosso i | _0,0098(0.2489) [ AN 0.0075(0.1905)_} 0.020(0.508 a L 9.050(1.27]BSC | Lesoes Mm 4675088 LE EEEREEEEEEEeEe 38 0.145(3.683) 0.135(3.429) HY534256A Series UNIT : INCH(mm) UNIT : INCH{mm) 0.274(6.960 0.260(6.604) ooo4073 323 0.008(0.200) 0.148(3.759 | 0.198(3.505) 0.032(0,813) 0.026(0.660) 1AB06-10-MAY95HYUNDAI ORDERING INFORMATION PART NUMBER SPEED POWER | PACKAGE HY534256AS 60/70/80 PDIP HY534256ALS 60/70/80 | Lpart PDIP HY534256AJ 60/70/80 SOJ HY534256ALJ 60/70/80 | L-part SOJ 1AB06-10-MAY95 HY534256A Series Me 4675088 OOO4O74 CLT 39