4M x 4-Bit Dynamic RAM HYB5117400BJ -50/-60/-70 HYB5117400BT -50/-60/-70 Advanced Information • 4 194 304 words by 4-bit organization • 0 to 70 °C operating temperature • Performance: -50 -60 -70 tRAC RAS access time 50 60 70 ns tCAC CAS access time 13 15 20 ns tAA Access time from address 25 30 35 ns tRC Read/Write cycle time 90 110 130 ns tPC Fast page mode cycle time 35 40 45 ns • Single + 5 V (± 10 %) supply • Low power dissipation max. 660 active mW (-50 version) max. 605 active mW (-60 version) max. 550 active mW (-70 version) 11 mW standby (TTL) 5.5. mW standby (MOS) • Output unlatched at cycle end allows two-dimensional chip selection • Read, write, read-modify-write, CAS-before-RAS refresh, RAS-only refresh, hidden refresh, self refresh and test mode • Fast page mode capability • All inputs, outputs and clocks fully TTL-compatible • 2048 refresh cycles / 32 ms • Plastic Package: Semiconductor Group P-SOJ-26/24 300 mil P TSOPII-26/24 300 mil 1 1.96 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM The HYB 5117400BJ/BT is a 16MBit dynamic RAM organized as 4194304 words by 4-bits. The HYB 5117400BJ/BT utilizes a submicron CMOS silicon gate process technology, as well as advanced circuit techniques to provide wide operating margins, both internally and for the system user. Multiplexed address inputs permit the HYB 5117400BJ/BT to be packaged in a standard SOJ 26/24 or TSOPII-26/24 plastic package, both with 300 mil width. These packages provide high system bit densities and are compatible with commonly used automatic testing and insertion equipment. System-oriented features include single + 5 V (± 10 %) power supply, direct interfacing with high-performance logic device families such as Schottky TTL. Ordering Information Type Ordering Code Package Descriptions HYB 5117400BJ-50 Q67100-Q1086 P-SOJ-26/24 300 mil DRAM (access time 50 ns) HYB 5117400BJ-60 Q67100-Q1087 P-SOJ-26/24 300 mil DRAM (access time 60 ns) HYB 5117400BJ-70 Q67100-Q1088 P-SOJ-26/24 300 mil DRAM (access time 70 ns) HYB 5117400BT-50 on request P-TSOPII-26/24 300mil DRAM (access time 50 ns) HYB 5117400BT-60 on request P-TSOPII-26/24 300mil DRAM (access time 60 ns) HYB 5117400BT-70 on request P-TSOPII-26/24 300mil DRAM (access time 70 ns) Pin Names A0 to A10 Row Address Inputs A0 to A10 Column Address Inputs RAS Row Address Strobe OE Output Enable I/O1-I/O4 Data Input/Output CAS Column Address Strobe WE Read/Write Input VCC Power Supply (+ 5 V) VSS Ground (0 V) N.C. not connected Semiconductor Group 2 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM Vcc I/O1 I/O2 WE RAS N.C. 1 2 3 4 5 6 26 25 24 23 22 21 Vss I/O4 I/O3 CAS OE A9 A10 A0 A1 A2 A3 VCC 8 9 10 11 12 13 19 18 17 16 15 14 A8 A7 A6 A5 A4 Vss P-SOJ-26/24 300 mil P-TSOPII-26/24 300 mil Pin Configuration Semiconductor Group 3 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM I/O1 I/O2 I/O3 I/O4 WE CAS & . Data in Buffer No. 2 Clock Generator 11 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 Data out Buffer 4 4 Column Address Buffer(11) OE 11 Column Decoder Refresh Controller Sense Amplifier I/O Gating Refresh Counter (11) 4 2048 x4 11 Row 11 RAS Address Buffers(11) Row Decoder 2048 11 No. 1 Clock Generator Voltage Down Generator Block Diagram Semiconductor Group Memory Array 2048x2048x4 4 VCC VCC (internal) HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM Absolute Maximum Ratings Operating temperature range ............................................................................................0 to 70 °C Storage temperature range.........................................................................................– 55 to 150 °C Input/output voltage ................................................................................-0.5 to min (Vcc+0.5,7.0) V Power supply voltage...................................................................................................-1.0V to 7.0 V Power dissipation..................................................................................................................... 1.0 W Data out current (short circuit) ................................................................................................ 50 mA Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage of the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC Characteristics TA = 0 to 70 °C, VSS = 0 V, VCC = 5 V ± 10 %; tT = 5 ns Parameter Symbol Limit Values min. max. Unit Test Condition Input high voltage VIH 2.4 Vcc+0.5 V 1) Input low voltage VIL – 0.5 0.8 V 1) Output high voltage (IOUT = – 5 mA) VOH 2.4 – V 1) Output low voltage (IOUT = 4.2 mA) VOL – 0.4 V 1) Input leakage current (0 V ≤ VIH ≤ Vcc + 0.3V, all other pins = 0 V) II(L) – 10 10 µA 1) Output leakage current (DO is disabled, 0 V ≤ VOUT ≤ Vcc + 0.3V) IO(L) – 10 10 µA 1) Average VCC supply current: ICC1 -50 ns version -60 ns version -70 ns version (RAS, CAS, address cycling: tRC = tRC min.) – – – 120 110 100 mA mA mA 2) 3) 4) Standby VCC supply current (RAS = CAS = VIH) ICC2 – 2 mA – Average VCC supply current, during RAS-only refresh cycles: -50 ns version -60 ns version -70 ns version (RAS cycling, CAS = VI,H, tRC = tRC min.) ICC3 – – – 120 110 100 mA mA mA 2) 4) Semiconductor Group 5 2) 3) 4) 2) 3) 4) 2) 4) 2) 4) HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM DC Characteristics (cont’d) TA = 0 to 70 °C, VSS = 0 V, VCC = 5 V ± 10 %; tT = 5 ns Parameter Symbol Average VCC supply current, ICC4 during fast page mode: -50 ns version -60 ns version -70 ns version (RAS = VIL, CAS, address cycling:tPC = tPC min.) Standby VCC supply current (RAS = CAS = VCC – 0.2 V) ICC5 Average VCC supply current, during CASbefore-RAS refresh mode: -50 ns version -60 ns version -70 ns version (RAS, CAS cycling: tRC = tRC min.) ICC6 Average Self Refresh Current ICC7 Limit Values min. max. Unit Test Condition – – – 40 35 30 mA mA mA – 1 mA – – – 120 110 100 mA mA mA _ 1 mA 2) 3) 4) 2) 3) 4) 2) 3) 4) 1) 2) 4) 2) 4) 2) 4) (CBR cycle with tRAS>TRASSmin., CAS held low, WE=Vcc-0.2V, Address and Din=Vcc-0.2V or 0.2V) Capacitance TA = 0 to 70 °C,VCC = 5 V ± 10 %, f = 1 MHz Parameter Symbol Limit Values min. max. Unit Input capacitance (A0 to A10) CI1 – 5 pF Input capacitance (RAS, CAS, WE, OE) CI2 – 7 pF I/O capacitance (I/O1-I/O4) CIO – 7 pF Semiconductor Group 6 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM AC Characteristics 5)6) TA = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns Parameter 16F Limit Values Symbol -50 Unit Note -60 -70 min. max. min. max. min. max. common parameters Random read or write cycle time tRC 90 – 110 – 130 – ns RAS precharge time tRP 30 – 40 – 50 – ns RAS pulse width tRAS 50 10k 60 10k 70 10k ns CAS pulse width tCAS 13 10k 15 10k 20 10k ns Row address setup time tASR 0 – 0 – 0 – ns Row address hold time tRAH 8 – 10 – 10 – ns Column address setup time tASC 0 – 0 – 0 – ns Column address hold time tCAH 10 – 15 – 15 – ns RAS to CAS delay time tRCD 18 37 20 45 20 50 RAS to column address delay time tRAD 13 25 15 30 15 35 ns RAS hold time tRSH 13 15 – 20 – ns CAS hold time tCSH 50 60 – 70 – ns CAS to RAS precharge time tCRP 5 – 5 – 5 – ns Transition time (rise and fall) tT 3 50 3 50 3 50 ns Refresh period tREF – 32 – 32 – 32 ms Access time from RAS tRAC – 50 – 60 – 70 ns 8, 9 Access time from CAS tCAC – 13 – 15 – 20 ns 8, 9 Access time from column address tAA – 25 – 30 – 35 ns 8,10 OE access time – 13 – 15 – 20 ns Column address to RAS lead time tRAL 25 – 30 – 35 – ns Read command setup time tRCS 0 – 0 – 0 – ns Read command hold time tRCH 0 – 0 – 0 – ns 11 Read command hold time referenced to RAS tRRH 0 – 0 – 0 – ns 11 CAS to output in low-Z tCLZ 0 – 0 – 0 – ns 8 Output buffer turn-off delay tOFF 0 13 0 15 0 20 ns 12 7 Read Cycle Semiconductor Group tOEA 7 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM AC Characteristics (cont’d) 5)6) TA = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns Parameter 16F Limit Values Symbol -50 Unit Note -60 -70 min. max. min. max. min. max. Output buffer turn-off delay from OE tOEZ 0 13 0 15 0 20 ns 12 Data to OE low delay tDZO 0 – 0 – 0 – ns 13 CAS high to data delay tCDD 13 – 15 – 20 – ns 14 OE high to data delay tODD 13 – 15 – 20 – ns 14 Write command hold time tWCH 8 – 10 – 10 – ns Write command pulse width tWP 8 – 10 – 10 – ns Write command setup time tWCS 0 – 0 – 0 – ns Write command to RAS lead time tRWL 13 – 15 – 20 – ns Write command to CAS lead time tCWL 13 – 15 – 20 – ns Data setup time tDS 0 – 0 – 0 – ns 16 Data hold time tDH 10 – 10 – 15 – ns 16 Data to CAS low delay tDZC 0 – 0 – 0 – ns 13 Read-write cycle time tRWC 126 – 150 – 180 – ns RAS to WE delay time tRWD 68 – 80 – 95 – ns 15 CAS to WE delay time tCWD 31 – 35 – 45 – ns 15 Column address to WE delay time tAWD 43 – 50 – 60 – ns 15 OE command hold time tOEH 13 – 15 – 20 – ns Fast page mode cycle time tPC 35 – 40 – 45 – ns CAS precharge time tCP 10 – 10 – 10 – ns Access time from CAS precharge tCPA – 30 – 35 – 40 ns RAS pulse width tRAS 50 200k 60 200k 70 200k ns CAS precharge to RAS Delay tRHPC 30 – – – Write Cycle 15 Read-Modify-Write Cycle Fast Page Mode Cycle Semiconductor Group 8 35 40 ns 7 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM AC Characteristics (cont’d) 5)6) TA = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns Parameter 16F Limit Values Symbol -50 min. Unit Note -60 -70 max. min. max. min. max. Fast Page Mode Read-Modify-Write Cycle Fast page mode read-write cycle time tPRWC 71 – 80 – 95 – ns CAS precharge to WE tCPWD 48 – 55 – 65 – ns CAS setup time tCSR 10 – 10 – 10 – ns CAS hold time tCHR 10 – 10 – 10 – ns RAS to CAS precharge time tRPC 5 – 5 – 5 – ns Write to RAS precharge time tWRP 10 – 10 – 10 – ns Write hold time referenced to RAS tWRH 10 – 10 – 10 – ns tCPT 35 – 40 – 40 – ns CAS hold time tCHRT 30 – 30 – 30 – ns Write command setup time tWTS 10 – 10 – 10 – ns Write command hold time tWTH 10 – 10 – 10 – ns RAS pulse width tRASS 100k – 100k – 100k – ns 17 RAS precharge time tRPS 95 – 110 – 130 – ns 17 CAS hold time tCHS -50 – -50 – -50 – ns 17 CAS-before-RAS Refresh Cycle CAS-before-RAS Counter Test Cycle CAS precharge time Test Mode Self Refresh Cycle Semiconductor Group 9 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM Notes: 1) All voltages are referenced to VSS. 2) ICC1, ICC3, ICC4 and ICC6 depend on cycle rate. 3) ICC1 and ICC4 depend on output loading. Specified values are measured with the output open. 4) Address can be changed once or less while RAS = VIL. In the case of ICC4 it can be changed once or less during a fast page mode cycle (tPC). 5) An initial pause of 200 µs is required after power-up followed by 8 RAS cycles of which at least one cycle has to be a refresh cycle, before proper device operation is achieved. In case of using internal refresh counter, a minimum of 8 CAS-before-RAS initialization cycles instead of 8 RAS cycles are required. 6) AC measurements assume tT = 5 ns. 7) VIH (min.) and VIL (max.) are reference levels for measuring timing of input signals. Transition times are also measured between VIH and VIL. 8) Measured with a load equivalent to 2 TTL loads and 100 pF. 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)Either tRCH or tRRH must be satisfied for a read cycle. 12)tOFF (max.) and tOEZ (max.) define the time at which the outputs achieve the open-circuit condition and are not referenced to output voltage levels. 13)Either tDZC or tDZO must be satisfied. 14)Either tCDD or tODD must be satisfied. 15)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 the I/O 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-write cycle and I/O pins will contain data read from the selected cells. If neither of the above sets of conditions is satisfied, the condition of the I/O pins (at access time) is indeterminate. 16)These parameters are referenced to the CAS leading edge in early write cycles and to the WE leading edge in read-write cycles. 17)When using Self Refresh mode, the following refresh operations must be performed to ensure proper DRAM operation: If row addresses are being refreshed on an evenly distributed manner over the refresh interval using CBR refresh cycles, then only one CBR cycle must be performed immediately after exit from Self Refresh. If row addresses are being refreshed in any other manner (ROR - Distributed/Burst; or CBR-Burst) over the refresh interval, then a full set of row refreshes must be performed immediately before entry to and immediately after exit from Self Refresh. Semiconductor Group 10 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRAS RAS V IH VIL tCSH V IH VIL tRAD tASR Address V IH VIL tCRP tRSH tCAS tRCD CAS tRP tRAL tCAH tASC tASR Column Row Row tRCH tRAH tRCS tRRH V WE OE I/O (Inputs) IH VIL tAA tOEA V IH VIL tCDD tDZC tODD tDZO V IH tCAC VIL tCLZ V OH I/O (Outputs) V Hi Z tOFF tOEZ Valid Data Out Hi Z OL tRAC WL1 “H” or “L” Read Cycle Semiconductor Group 11 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRAS tRP V IH RAS VIL tCSH tRCD tRSH tCAS V IH CAS VIL tRAD tASR Address V IH tRAL Row OE . Row tCWL tWCS t WP IH VIL tWCH tRWL V IH VIL tDS I/O (Inputs) tASR Column VIL V WE tCAH tASC tRAH tCRP tDH V IH Valid Data In VIL V OH I/O (Outputs) V Hi Z OL WL2 “H” or “L” Write Cycle (Early Write) Semiconductor Group 12 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRAS tRP V IH RAS VIL tCSH tRCD V IH CAS VIL tRAD tASR tCRP tRSH tCAS tCAH tASC tRAL tASR . V IH Address V IL Row tCWL tRWL tWP tRAH V WE Row Column IH VIL tOEH V OE IH tODD tDS tOEZ VIL tDZO tDZC I/O (Inputs) tDH V IH Valid Data VIL tCLZ tOEA V OH I/O (Outputs) V Hi-Z Hi-Z OL “H” or “L” WL3 Write Cycle (OE Controlled Write) Semiconductor Group 13 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRWC tRAS RAS V IH tRP tCSH VIL tRSH tCAS tRCD V tCRP IH CAS VIL tRAH tCAH tASR tASC tASR V IH Address VIL Row Column Row tCWL tRWL tAWD tRAD tCWD tRWD tWP V IH WE VIL tAA tRCS tOEH tOEA V IH OE VIL tDS tDZO tDZC I/O (Inputs) tDH V IH Valid Data in VIL tCLZ tODD tCAC tOEZ V OH I/O (Outputs) VOL Data Out tRAC “H” or “L” WL4 Read-Write (Read-Modify-Write) Cycle Semiconductor Group 14 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRP tRASP V IH RAS VIL tRHCP tRSH tCAS tPC tCAS tRCD tCAS tCP V tCRP IH CAS VIL tCSH tRAH tASR V Address tCAH tASC tASC IH VIL Row tCAH tCAH Column Column tASR tASC Column Row tRAD tRCH tRCH tRCS tRCS tRCS tCPA tAA tCPA tAA tOEA V IH WE VIL tAA OE VIL tDZC tDZC tDZC tDZO tDZO I/O (Inputs) tOEA tOEA V IH tODD V tODD tRRH tCDD tDZO tODD IH VIL tCAC tRAC tCLZ tOFF tOEZ tCAC tCLZ tOFF tOEZ V OH I/O (Outputs) V Valid Data Out OL Valid Data Out tCAC tCLZ tOFF tOEZ Valid Data Out “H” or “L” FPM1 Fast Page Mode Read Cycle Semiconductor Group 15 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRP tRAS V IH RAS VIL tRSH tPC tRCD tCAS tCP tCAS tCAS tCRP V IH CAS VIL tRAL tRAH tCAH tASR tASC V Address IH VIL tCWL tWCS tCWL tWCS tASR Column tCWL tRWL tWCH tWP tWP VIL V IH VIL tDH tDS I/O (Inputs) tCAH Column tWCH tWP IH tASC Column tWCH V OE tASC Column Row tRAD tWCS WE tCAH tDH tDH tDS tDS V IH VIL Valid Data In Valid Data In Valid Data In V OH I/O (Outputs) V HI-Z OL “H” or “L” FPM2 Fast Page Mode Early Write Cycle Semiconductor Group 16 Semiconductor Group Fast Page Mode Read-Modify-Write Cycle 17 IH IH IH IH V IH V IL V V IL V V IL V V IL V V IL IH OL OH I/O (Outputs) V V I/O (Inputs) V IL OE WE Address CAS RAS V tASR tRAC tCAS tAA tOEA tAWD tCAC Data Out tOEH Data In tDS tCAH tAA tCLZ tCPA tDZC tOEZ tDS tDH tOEH tCAH tDZC tAA tCAC tCLZ tCPA tDS tOEZ tRWL tCWL tWP tDH tOEH Data In tODD tRAL tCAS tRSH Data Out tOEA tAWD tCPWD tCWD Column tASC tCWL tWP Data In tODD Data Out tOEA tAWD tPRWC tCAS tCPWD tCWD Column Address tASC tCP tCWL tWP tOEZ tDH tODD tRWD tCWD Column tASC tCAH tDZC tCLZ tDZO tRCS “H” or “L” Row tRAH tRAD tRCD tCSH tRAS tCRP Row tASR tRP HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRAS RAS tRP V IH VIL tCRP tRPC CAS V IH VIL tRAH tASR tASR V Address IH Row VIL Row V OH I/O (Outputs) V HI-Z OL “H” or “L” WL9 RAS-Only Refresh Cycle Semiconductor Group 18 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRP tRAS tRP V RAS IH VIL tRPC tCSR tCRP tCP CAS tRPC tCHR V IH VIL tWRP tWRH V WE IH VIL tOEZ V IH OE VIL tCDD I/O (Inputs) V IH VIL tODD V OH I/O (Outputs)VOL HI-Z tOFF “H” or “L” WL10 CAS-Before-RAS Refresh Cycle Semiconductor Group 19 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRC RAS tRP tRAS V tRP tRAS IH VIL tRSH tRCD tCRP tCHR V CAS IH tRAD VIL tWRP tASC tASR tRAH tASR tWRH tCAH V Address IH VIL Column Row Row tRRH tRCS V WE IH VIL tAA tOEA V OE IH VIL tDZC tCDD tDZO tODD V I/O (Inputs) IH VIL tCAC tOFF tCLZ tOEZ tRAC V OH I/O (Outputs) V Valid Data Out HI-Z OL “H” or “L” WL11 Hidden Refresh Cycle (Read) Semiconductor Group 20 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRC tRP RAS tRAS V IH WE tRSH VIL tCRP tRAD tRAH tASC tCAH V IH VIL Row tASR Row Column tWCS tWRP tWCH tWRH tWP V IH VIL tDS I/O (Input) tCHR V IH tASR Address tRP VIL tRCD CAS tRAS V IH tDH Valid Data V IL V OH I/O (Output) V OL HI-Z “H” or “L” WL12 Hidden Refresh Cycle (Early Write) Semiconductor Group 21 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRASS tRP RAS tRPS V IH VIL tRPC tCP V CAS tCRP tCHS tCSR IH VIL tWRP tWRH V WE OE IH VIL V IH VIL tCDD I/O (Inputs) V IH VIL tODD tOEZ V OH I/O (Outputs) V OL HI-Z tOFF “H” or “L” WL13 CAS before RAS Self Refresh Cycle Semiconductor Group 22 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRP tRAS Read Cycle: RAS V IH V IL tRSH tCAS tCP tCHR tCSR CAS V IH V IL tRAL tASC Address V IH Column V IL tWRP WE OE I/O (Inputs) I/O (Outputs) V IL Row tWRH tOEA tRCS V IH V IL tDZC V IH V IL tODD tDZO VOH VOL V IH V IL OE V IH V IL I/O (Inputs) V IH tOEZ Data Out tWCS tRWL tCWL tWCH tWRH tDS V IH V IL HI-Z CAS-Before-RAS Refresh Counter Test Cycle Semiconductor Group tDH Data In V IL 23 tCDD tOFF tCLZ Write Cycle: I/O (Outputs) tRRH tAA tCAC V IH tWRP WE tASR tCAH tRCH HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM tRC tRP tRAS V RAS tRP IH VIL tRPC tCP tCSR tCHR tRPC tCRP V CAS IH VIL tASR tRAH V Address IH Row VIL tWTS tWTH V WE IH VIL V OE IH VIL V I/O IH (Inputs) V IL tODD HI-Z tCDD tOEZ V OH I/O (Outputs) V HI-Z OL tOFF “H” or “L” WL15 Test Mode Entry Semiconductor Group 24 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM Test Mode As the HYB 5117400BJ/BT is organized internally as 1M x 16-bits, a test mode cycle using 4:1 compression can be used to improve test time. Note that in the 4M x 4 version the test time is reduced by 1/4 for a N test pattern. In a test mode “write” the data from each I/O pin is written into four 1M blocks simultaneously (all “1” s or all “0” s). In test mode “read” each I/O output is used for indicating the test mode result. If the internal four bits are equal, the I/O would indicate a “1”. If they were not equal, the I/O would indicate a “0”. The WCBR cycle (WE, CAS before RAS) puts the device into test mode. To exit from test mode, a “CAS before RAS refresh”, “RAS only refresh” or “Hidden refresh” can be used.Refresh during test mode operation can be performed by normal read cycles or by WCBR refresh cycles. Row addresses A0 through A9 have to kept high to perform a testmode entry cycle. All other addresses are don’t care. A0C,A1C A0C,A1C Normal I/O 1 Test 1 M Block Vcc 1 M Block Normal I/O 1 1 M Block Test 1 M Block A0C,A1C A0C,A1C Normal I/O 2 Test Vss Vcc 1 M Block Normal 1 M Block I/O 2 1 M Block Test 1 M Block A0C,A1C A0C,A1C Normal I/O 3 1 M Block Vss Vcc 1 M Block Normal Test 1 M Block I/O 3 Test 1 M Block A0C,A1C A0C,A1C Normal I/O 4 Test 1 M Block Vss Vcc 1 M Block Normal I/O 4 1 M Block Test 1 M Block Vss Block Diagram in Test Mode Semiconductor Group 25 HYB 5117400BJ/BT-50/-60/-70 4M x 4-DRAM Package Outlines Plastic Package P-SOJ-26/24 (300 mil) (Small Outline J-leads, SMD) GPJ05628 Index Marking 1) Does not include plastic or metal protrusion of 0.15 max per side 7.62 1.27 0.4 +- 0.13 0.6 +0.12 -0.1 0.2 M 0.1 24x 26 9.22 -0.2 +- 0.2 14 GPX05857 1 13 17.27 -0.25 1) Index Marking Semiconductor Group 26