HY514400B FUNCTIONAL BLOCK DIAGRAM DQ0 ~ DQ3 4 8 Data Input Buffer WE CAS OE Data Output Buffer 4 4 CAS Clock Generator 4 A0 Cloumn Predecoder (10) A1 10 Column Decoder A3 A4 A5 A6 Address Buffer A2 Sense Amp I/O Gate Refresh Controller Refresh Counter (10) Row Decoder A7 A8 A9 RAS Memory Array 1,048,576 x 4 10 Row Predecoder (10) RAS Clock Generator Substrate Bias Generator 1Mx4,FP DRAM Rev.10 / Jan.97 2 VCC VSS HY514400B PIN CONFIGURATION (Marking Side) DQ0 1 26 VSS DQ0 1 26 VSS DQ1 2 25 DQ3 DQ1 2 25 DQ3 WE 3 24 DQ2 WE 3 24 DQ2 RAS 4 23 CAS RAS 4 23 CAS A9 5 22 OE A9 5 22 OE A0 9 18 A8 A0 9 18 A8 A1 10 17 A7 A1 10 17 A7 A2 11 16 A6 A2 11 16 A6 A3 12 15 A5 A3 12 15 A5 Vcc 13 14 A4 Vcc 13 14 A4 20/26 Pin Plastic SOJ (300mil) 20/26 Pin Plastic TSOP- II (300mil) PIN DESCRIPTION Pin Name Parameter /RAS Row Address Strobe /CAS Column Address Strobe /WE Write Enable /OE Output Enable A0~A9 Address Input DQ0~DQ3 Data In/Out Vcc Power (5V) Vss Ground 1Mx4,FP DRAM Rev.10 / Jan.97 3 HY514400B ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit TA Ambient Temperature 0 to 70 °C TSTG Storage Temperature -55 to 150 °C VIN, VOUT Voltage on Any Pin relative to VSS -1.0 to 7.0 V VCC Voltage on VCC relative to VSS -1.0 to 7.0 V IOS Short Circuit Output Current 50 mA PD Power Dissipation 0.9 W TSOLDER Soldering Temperature Ÿ Time 260 Ÿ 10 °C Ÿ sec Note : Operation at or above Absolute Maximum Ratings can adversely affect device reliability RECOMMENDED DC OPERATING CONDITIONS (TA = 0°C to 70°C ) Symbol Parameter Min Typ Max UNIT VCC Power Supply Voltage 4.5 5.0 5.5 V VIH Input High Voltage 2.4 - VCC+1.0 V VIL Input Low Voltage -1.0 - 0.8 V Note : All voltages are referenced to VSS. DC OPERATING CHARACTERISTICS Symbol Parameter Test condition Min Max Unit ILI Input Leakage Current (Any input) VSS ≤ VIN ≤ VCC + 1.0 All other pins not under test = VSS -10 10 µA ILO Output Leakage Current (Any input) VSS ≤ VOUT ≤ VCC /RAS & /CAS at VIH -10 10 µA VOL Output Low Voltage IOL = 4.2mA - 0.4 V VOH Output High Voltage IOH = -5.0mA 2.4 - V 1Mx4,FP DRAM Rev.10 / Jan.97 4 HY514400B DC CHARACTERISTICS (TA = 0°C to 70°C , VCC = 5V ± 10%, VSS = 0V, unless otherwise noted.) Symbol Parameter Test condition Speed Max. Unit 50 60 70 100 90 80 mA 2 mA ICC1 Operating Current /RAS, /CAS Cycling tRC = tRC(min) ICC2 TTL Standby Current /RAS, /CAS ≥ VIH(min) Other inputs ≥ VSS ICC3 /RAS-only Refresh Current /RAS Cycling,/CAS = VIH tRC = tRC(min) 50 60 70 100 90 80 mA Fast Page mode Current /CAS Cycling, /RAS = VIL tHPC = tHPC(min) 50 60 70 70 60 50 mA CMOS Standby Current /RAS = /CAS ≥ VCC - 0.2V SL-part 1 200 mA µA ICC6 /CAS-before-/RAS Refresh Current /RAS & /CAS = 0.2V tRC = tRC(min.) 50 60 70 100 90 80 mA ICC7 Battery Back-up Current (SL-part) tRC=125µs /CAS = CBR cycling or 0.2V /OE & /WE = VCC - 0.2V Address = Vcc-0.2V or 0.2V DQ0~DQ3 = Vcc-0.2, 0.2V or Open 300 /RAS & /CAS = 0.2V Other pins are same as ICC7 200 ICC4 ICC5 ICC8 Self Refresh Current (SL-part) µA µA Note 1. ICC1, ICC3, ICC4 and ICC6 depend on output loading and cycle rates(tRC and tPC). 2. Specified values are obtained with output unloaded. 3. ICC is specified as an average current. In ICC1, ICC3, ICC6, address can be changed only once while /RAS=VIL. In ICC4, address can be changed maximum once while /CAS=VIH within one cycle time tPC. 4. Only tRAS(max) = 1µs is applied to refresh of battery backup but tRAS(max) = 10µs is to applied to normal functional operation. 5. Icc5(max.), Icc7 and Icc8 are applied to SL-part only. 1Mx4,FP DRAM Rev.10 / Jan.97 5 HY514400B AC CHARACTERISTICS (TA = 0 °C to 70 °C, VCC = 5V ± 10% , VSS = 0V, unless otherwise noted.) 60ns 50ns Symbol 70ns Parameter Unit Min Max Min Max Min Max Note tRC Random read or write cycle time 90 - 110 - 130 - ns tRWC Read-modify-write cycle time 130 - 155 - 185 - ns tPC Fast Page mode cycle time 35 - 40 - 45 - ns tPRWC Fast Page mode read-modify-write cycle time 75 - 80 - 95 - ns tRAC Access time from /RAS - 50 - 60 - 70 ns 4,9,10 tCAC Access time from /CAS - 15 - 15 - 20 ns 4,9 tAA Access time from column address - 25 - 30 - 35 ns 4,10 tCPA Access time from /CAS precharge - 30 - 35 - 40 ns 4,15 tCLZ /CAS to output low impedance 0 - 0 - 0 - ns 4 tT Transition time(rise and fall) 3 50 3 50 3 50 ns 3 tRP /RAS precharge time 30 - 40 - 50 - ns tRAS /RAS pulse width 50 10K 60 10K 70 10K ns tRASP /RAS pulse width(FP mode) 50 200K 60 200K 70 200K ns tRSH /RAS hold time 15 - 15 - 20 - ns tCSH /CAS hold time 50 - 60 - 70 - ns tCAS /CAS pulse width 15 10K 15 10K 20 10K ns tRCD /RAS to /CAS delay time 15 35 20 45 20 50 ns 9 tRAD /RAS to column address delay time 10 25 15 30 15 35 ns 10 tCRP /CAS to /RAS precharge time 5 - 5 - 5 - ns 15 tCP /CAS precharge time 10 - 10 - 10 - ns 17 tASR Row address set-up time 0 - 0 - 0 - ns tRAH Row address hold time 8 - 10 - 10 - ns tASC Column address set-up time 0 - 0 - 0 - ns 14 tCAH Column address hold time 15 - 15 - 15 - ns 14 tAR Column address hold time from /CAS 40 - 50 - 55 - ns tRAL Column address to /RAS lead time 25 - 30 - 35 - ns tRCS Read command set-up time 0 - 0 - 0 - ns 14 tRCH Read command hold time referenced to /CAS 0 - 0 - 0 - ns 6,14 tRRH Read command hold time referenced to /RAS 0 - 0 - 0 - ns 6 tWCH Write command hold time 10 - 10 - 15 - ns 14 tWCR Write command hold time from /RAS 40 - 45 - 55 - ns tWP Write command pulse width 10 - 10 - 15 - ns tRWL Write command to /RAS lead time 15 - 15 - 20 - ns 1Mx4,FP DRAM Rev.10 / Jan.97 6 HY514400B AC CHARACTERISTICS Continued 60ns 50ns Symbol 70ns Parameter Min Max Min Max Min Max Unit Note tCWL Write command to /CAS lead time 15 - 15 - 20 - ns 16 tDS Data-in set-up time 0 - 0 - 0 - ns 7 tDH Data-in hold time 15 - 15 - 15 - ns 7 tDHR Data-in hold time Referenced to /RAS 40 - 45 - 55 - ns Refresh period(1024 cycles) 16 - 16 - 16 - ms 12 Refresh period(SL-part) 128 - 128 - 128 - ms 11 tREF tWCS Write command set-up time 0 - 0 - 0 - ns 84 tCWD /CAS to /WE delay time 35 - 40 - 50 - ns 8 tRWD /RAS to /WE delay time 70 - 85 - 100 - ns 8 tAWD Column address to /WE delay time 45 - 55 - 65 - ns 8 tCSR /CAS set-up time(CBR cycle) 5 - 5 - 5 - ns 14 tCHR /CAS hold time(CBR cycle) 10 - 10 - 10 - ns 15 tRPC /RAS to /CAS precharge time 5 - 5 - 5 - ns 14 tCPT /CAS precharge time(CBR counter test) 20 - 20 - 25 - ns 17 tROH /RAS hold time referenced to /OE 10 - 10 - 10 - ns tOEA /OE access time - 15 - 15 - 20 ns tOED /OE to data delay 15 - 15 - 20 - ns tOEZ Output buffer turn-off delay time from /OE 0 15 0 15 0 20 ns tOEH /OE command hold time 15 - 15 - 20 - ns tCPWD /WE delay time from /CAS precharge 50 - 55 - 65 - ns tRHCP /RAS hold time from /CAS precharge 30 - 35 - 40 - ns tRASS /RAS pulse width(self refresh) 100 - 100 - 100 - ns tRPS /RAS Precharge Time (Self refresh) 120 - 130 - 150 - ns tCHS /CAS Hold Time (Self refresh) -50 - -50 - -50 - ns tWRP /WE to /RAS Precharge time (CBR cycle) 10 - 10 - 10 - ns tWRH /WE to /RAS Hold time (CBR cycle) 10 - 10 - 10 - ns tWTS Write Command Set-up time (Test Mode In) 10 - 10 - 10 - ns tWTH Write Command Hole time (test Mode In) 10 - 10 - 10 - ns 1Mx4,FP DRAM Rev.10 / Jan.97 7 5 8 HY514400B NOTE 1. An initial pause of 200µs is required after power-up followed by 8 /RAS only refresh cycles before proper device operation is achieved. In case of using internal refresh counter, a minimum of 8 CBR refresh cycles instead of 8 /RAS-only refresh cycles are required. 2. If /RAS=Vss during power-up,the HY514400B could begin an active cycle. This condition results in higher current than necessary current which is demanded from the power supply during power-up. It is recommended that /RAS and /CAS track with Vcc during power-up or be held at a valid VIH in other to minimize the power-up current. 3. VIH(min.) and VIL(max.) are reference levels for measuring timing of input signals. Transition times are measured between VIH(min.) and VIL(max.),and are assumed to be 5ns for all inputs. 4. Measured at VOH=2.0V and VOL=0.8V with a load equivalent to 2TTL loads and 100pF. 5. tOFF(max.) and tOEZ define the time at which the output achieves the open circuit condition and is not referenced to output voltage levels. 6. Either tRCH or tRRH must be satisfied for a read cycle. 7. t CEZ and t OEZ define the time at which the output achieves the open circuit condition and is not referenced to output voltage levels. 8. tWCS, tRWD, tCWD, 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 tRWD ≥ tRWD(min.), tCWD ≥ tCWD(min.), tAWD ≥ tAWD(min), and tCPWD ≥ tCPWD(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 indeterminate. 9. Operation within the tRCD(max.) limit ensures that tRAC(max.) can be met. tRCD(max.) is specified as a reference point only. If tRCD is greater than the specified tRCD(max.) limit, then access time is controlled by tCAC. 10.Operation within the tRAD(max.) limit ensures that tRAC(max.) can be met. tRAD(max.) is specified as a reference point only. If tRAD is greater than the specified tRAD(max.) limit, then access time is controlled by tAA. 11.tREF(max.)=128ms is applied to SL-parts only. 12.A burst of 1024 CBR refresh cycles must be executed within 16ms (128ms for SL-part) after exiting self refresh. 13.When CAS goes low at the same time, 4bits data are written into the device. 14.These parameters are determined by the earlier falling edge of /CAS. 15.These parameters are determined by the later rising edge of /CAS. 16.tCWL must be satisfied by /CAS for 4bits access cycle. 17.tCP and tCPT are measured when /CAS and is high state. CAPACITANCE (TA = 25°C, VCC = 5V ± 10%, VSS = 0V and f=1MHz, unless otherwise noted.) Symbol Parameter Typ. Max Unit CIN1 Input Capacitance (A0~A9) - 5 pF CIN2 Input Capacitance (/RAS, /CAS, /WE, /OE) - 7 pF CDQ Data Input / Output Capacitance (DQ0~DQ3) - 7 pF 1Mx4,FP DRAM Rev.10 / Jan.97 8