MOSEL VITELIC V54C365404VD(L) HIGH PERFORMANCE 143/133/125 MHz 3.3 VOLT 16M X 4 SYNCHRONOUS DRAM 4 BANKS X 4Mbit X 4 PRELIMINARY 7 75 8PC 8 System Frequency (fCK) 143 MHz 133 MHz 125 MHz 125 MHz Clock Cycle Time (tCK3) 7 ns 7.5 ns 8 ns 8 ns Clock Access Time (tAC3) CAS Latency = 3 5.4 ns 5.4 ns 6 ns 7 ns Clock Access Time (tAC2) CAS Latency = 2 5.5 ns 6 ns 6 ns 7 ns Features Description ■ 4 banks x 4Mbit x 4 organization ■ High speed data transfer rates up to 143 MHz ■ Full Synchronous Dynamic RAM, with all signals referenced to clock rising edge ■ Single Pulsed RAS Interface ■ Data Mask for Read/Write Control ■ Four Banks controlled by BA0 & BA1 ■ Programmable CAS Latency: 2, 3 ■ Programmable Wrap Sequence: Sequential or Interleave ■ Programmable Burst Length: 1, 2, 4, 8 and full page for Sequential Type 1, 2, 4, 8 for Interleave Type ■ Multiple Burst Read with Single Write Operation ■ Automatic and Controlled Precharge Command ■ Random Column Address every CLK (1-N Rule) ■ Suspend Mode and Power Down Mode ■ Auto Refresh and Self Refresh ■ Refresh Interval: 4096 cycles/64 ms ■ Available in 54 Pin 400 mil TSOP-II ■ LVTTL Interface ■ Single +3.3 V ±0.3 V Power Supply The V54C365404VD(L) is a four bank Synchronous DRAM organized as 4 banks x 4Mbit x 4. The V54C365404VD(L) achieves high speed data transfer rates up to 143 MHz by employing a chip architecture that prefetches multiple bits and then synchronizes the output data to a system clock All of the control, address, data input and output circuits are synchronized with the positive edge of an externally supplied clock. Operating the four memory banks in an interleaved fashion allows random access operation to occur at higher rate than is possible with standard DRAMs. A sequential and gapless data rate of up to 143 MHz is possible depending on burst length, CAS latency and speed grade of the device. Device Usage Chart Operating Temperature Range Package Outline T 7 75 8PC 8 Std. L Temperature Mark 0°C to 70°C • • • • • • • Blank V54C365404VD(L) Rev. 0.9 September 2001 Access Time (ns) 1 Power MOSEL VITELIC V54C365404VD(L) 54 Pin Plastic TSOP-II PIN CONFIGURATION Top View VCC NC VCCQ NC I/O1 VSSQ NC NC VCCQ NC I/O2 VSSQ NC VCC NC WE CAS RAS CS BA0 BA1 A10 A0 A1 A2 A3 VCC 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 29 28 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 Pin Names VSS NC VSSQ NC I/O4 VCCQ NC NC VSSQ NC I/O3 VCCQ NC VSS NC DQM CLK CKE NC A11 A9 A8 A7 A6 A5 A4 VSS 31644002 02 V54C365404VD(L) Rev. 0.9 September 2001 2 CLK Clock Input CKE Clock Enable CS Chip Select RAS Row Address Strobe CAS Column Address Strobe WE Write Enable A0–A11 Address Inputs BA0, BA1 Bank Select I/O1–I/O4 Data Input/Output DQM Data Mask VCC Power (+3.3V) VSS Ground VCCQ Power for I/O’s (+3.3V) VSSQ Ground for I/O’s NC Not connected MOSEL VITELIC V54C365404VD(L) Capacitance* Absolute Maximum Ratings* TA = 0 to 70°C, VCC = 3.3 V ± 0.3 V, f = 1 Mhz Operating temperature range ................... 0 to 70°C Storage temperature range .................-55 to 150°C Input/output voltage.................. -0.3 to (VCC+0.3) V Power supply voltage .......................... -0.3 to 4.6 V Power dissipation ..............................................1 W Data out current (short circuit).......................50 mA Max. Unit Symbol Parameter C I1 Input Capacitance (A0 to A11) 5 pF C I2 Input Capacitance RAS, CAS, WE, CS, CLK, CKE, DQM 5 pF C IO Output Capacitance (I/O) 6.5 pF C CLK Input Capacitance (CLK) 4 pF *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. *Note: Capacitance is sampled and not 100% tested. Block Diagram Row Addresses Column Addresses A0 - A9, AP, BA0, BA1 Row address buffer Column address buffer Refresh Counter Row decoder Row decoder Memory array Memory array Memory array Memory array Bank 0 4096 x 1024 x 4 bit Bank 1 4096 x 1024 x 4 bit Input buffer Column decoder Sense amplifier & I(O) bus Row decoder Column decoder Sense amplifier & I(O) bus Row decoder Column decoder Sense amplifier & I(O) bus Column decoder Sense amplifier & I(O) bus Column address counter A0 - A11, BA0, BA1 Bank 2 4096 x 1024 x 4 bit Output buffer Bank 3 4096 x 1024 x 4 bit Control logic & timing generator V54C365404VD(L) Rev. 0.9 September 2001 3 DQM WE CAS RAS CS CKE CLK I/O1-I/O4 MOSEL VITELIC V54C365404VD(L) Signal Pin Description Pin Type Signal Polarity Function CLK Input Pulse Positive Edge The system clock input. All of the SDRAM inputs are sampled on the rising edge of the clock. CKE Input Level Active High Activates the CLK signal when high and deactivates the CLK signal when low, thereby initiates either the Power Down mode, Suspend mode, or the Self Refresh mode. CS Input Pulse Active Low CS enables the command decoder when low and disables the command decoder when high. When the command decoder is disabled, new commands are ignored but previous operations continue. RAS, CAS WE Input Pulse Active Low When sampled at the positive rising edge of the clock, CAS, RAS, and WE define the command to be executed by the SDRAM. A0 - A11 Input Level — During a Bank Activate command cycle, A0-A11 defines the row address (RA0-RA11) when sampled at the rising clock edge. During a Read or Write command cycle, A0-An defines the column address (CA0-CAn) when sampled at the rising clock edge.CAn depends from the SDRAM organisation: 16M x 4 SDRAM CAn = CA9 (Page Length = 1024 bits) In addition to the column address, A10(=AP) is used to invoke autoprecharge operation at the end of the burst read or write cycle. If A10 is high, autoprecharge is selected and BA0, BA1 defines the bank to be precharged. If A10 is low, autoprecharge is disabled. During a Precharge command cycle, A10(=AP) is used in conjunction with BA0 and BA1 to control which bank(s) to precharge. If A10 is high, all four banks will BA0 and BA1 are used to define which bank to precharge. BA0, BA1 Input Level — Selects which bank is to be active. DQx Input Output Level — Data Input/Output pins operate in the same manner as on conventional DRAMs. DQM Input Pulse Active High The Data Input/Output mask places the DQ buffers in a high impedance state when sampled high. In Read mode, DQM has a latency of two clock cycles and controls the output buffers like an output enable. In Write mode, DQM has a latency of zero and operates as a word mask by allowing input data to be written if it is low but blocks the write operation if DQM is high. One DQM input it present in x4 SDRAMs. VCC, VSS Supply VDDQ VSSQ Supply Power and ground for the input buffers and the core logic. — V54C365404VD(L) Rev. 0.9 September 2001 — Isolated power supply and ground for the output buffers to provide improved noise immunity. 4 MOSEL VITELIC V54C365404VD(L) Operation Definition All of SDRAM operations are defined by states of control signals CS, RAS, CAS, WE, and DQM at the positive edge of the clock. The following list shows the thruth table for the operation commands. Device State CKE n-1 CKE n CS RAS CAS WE DQM A0-9, A11 A10 BS0 BS1 Idle3 H X L L H H X V V V Active3 H X L H L H X V L V Active 3 H X L H L H X V H V Write Active 3 H X L H L L X V L V Write with Autoprecharge Active3 H X L H L L X V H V Row Precharge Any H X L L H L X X L V Precharge All Any H X L L H L X X H X Mode Register Set Idle H X L L L L X V V V No Operation Any H X L H H H X X X X Device Deselect Any H X H X X X X X X X Auto Refresh Idle H H L L L H X X X X Self Refresh Entry Idle H L L L L H X X X X Idle (Self Refr.) H X X X L H L H H X X X X X Idle Active5 H X X X H L L H H X X X X X Any (Power Down) H X X X L H L H H L X X X X Data Write/Output Enable Active H X X X X X L X X X Data Write/Output Disable Active H X X X X X H X X X Operation Row Activate Read Read w/Autoprecharge Self Refresh Exit Power Down Entry Power Down Exit Notes: 1. V = Valid , x = Don’t Care, L = Low Level, H = High Level 2. CKEn signal is input level when commands are provided, CKEn-1 signal is input level one clock before the commands are provided. 3. These are state of bank designated by BS0, BS1 signals. 4. Device state is Full Page Burst operation 5. Power Down Mode can not entry in the burst cycle. When this command assert in the burst mode cycle device is clock suspend mode. V54C365404VD(L) Rev. 0.9 September 2001 5 MOSEL VITELIC V54C365404VD(L) mode set command. All banks must be in precharged state and CKE must be high at least one clock before the mode set operation. After the mode register is set, a Standby or NOP command is required. Low signals of RAS, CAS, and WE at the positive edge of the clock activate the mode set operation. Address input data at this timing defines parameters to be set as shown in the previous table. Power On and Initialization The default power on state of the mode register is supplier specific and may be undefined. The following power on and initialization sequence guarantees the device is preconditioned to each users specific needs. Like a conventional DRAM, the Synchronous DRAM must be powered up and initialized in a predefined manner. During power on, all VCC and VCCQ pins must be built up simultaneously to the specified voltage when the input signals are held in the “NOP” state. The power on voltage must not exceed VCC+0.3V on any of the input pins or VCC supplies. The CLK signal must be started at the same time. After power on, an initial pause of 200 µs is required followed by a precharge of both banks using the precharge command. To prevent data contention on the DQ bus during power on, it is required that the DQM and CKE pins be held high during the initial pause period. Once all banks have been precharged, the Mode Register Set Command must be issued to initialize the Mode Register. A minimum of eight Auto Refresh cycles (CBR) are also required.These may be done before or after programming the Mode Register. Failure to follow these steps may lead to unpredictable start-up modes. Read and Write Operation When RAS is low and both CAS and WE are high at the positive edge of the clock, a RAS cycle starts. According to address data, a word line of the selected bank is activated and all of sense amplifiers associated to the wordline are set. A CAS cycle is triggered by setting RAS high and CAS low at a clock timing after a necessary delay, tRCD, from the RAS timing. WE is used to define either a read (WE = H) or a write (WE = L) at this stage. SDRAM provides a wide variety of fast access modes. In a single CAS cycle, serial data read or write operations are allowed at up to a 143 MHz data rate. The numbers of serial data bits are the burst length programmed at the mode set operation, i.e., one of 1, 2, 4, 8 and full page. Column addresses are segmented by the burst length and serial data accesses are done within this boundary. The first column address to be accessed is supplied at the CAS timing and the subsequent addresses are generated automatically by the programmed burst length and its sequence. For example, in a burst length of 8 with interleave sequence, if the first address is ‘2’, then the rest of the burst sequence is 3, 0, 1, 6, 7, 4, and 5. Full page burst operation is only possible using the sequential burst type and page length is a function of the I/O organisation and column addressing. Full page burst operation do not self terminate once the burst length has been reached. In other words, unlike burst length of 2, 3 or 8, full page burst continues until it is terminated using another command. Programming the Mode Register The Mode register designates the operation mode at the read or write cycle. This register is divided into 4 fields. A Burst Length Field to set the length of the burst, an Addressing Selection bit to program the column access sequence in a burst cycle (interleaved or sequential), a CAS Latency Field to set the access time at clock cycle and a Operation mode field to differentiate between normal operation (Burst read and burst Write) and a special Burst Read and Single Write mode. The mode set operation must be done before any activate command after the initial power up. Any content of the mode register can be altered by re-executing the V54C365404VD(L) Rev. 0.9 September 2001 6 MOSEL VITELIC V54C365404VD(L) Address Input for Mode Set (Mode Register Operation) BA1 BA0 A11 A10 A9 A8 Operation Mode A7 A6 A5 A4 A3 A2 CAS Latency BT Burst Length 0 0 0 0 Mode Register Mode A3 Type 0 Burst Read/Burst Write 0 Sequential 1 Interleave 0 Burst Read/Single Write BA1 BA0 A11 A10 A9 A8 A7 0 Address Bus (Ax) A0 Burst Type Operation Mode 0 A1 0 0 0 1 0 0 Burst Length CAS Latency A6 A5 A4 Latency 0 0 0 Reserve 0 0 0 0 1 1 1 0 1 Length A2 A1 A0 Sequential Interleave 0 0 0 1 1 2 0 0 1 2 2 3 0 1 0 4 4 1 1 8 8 Reserve 1 0 0 4 0 1 0 1 Reserve 1 0 0 Reserve Reserve 1 1 0 Reserve 1 0 1 Reserve Reserve 1 1 1 Reserve 1 1 0 Reserve Reserve 1 1 1 Full Page Reserve with an operation change from a read to a write is possible by exploiting DQM to avoid bus contention. When two or more banks are activated sequentially, interleaved bank read or write operations are possible. With the programmed burst length, alternate access and precharge operations on two or more banks can realize fast serial data access modes among many different pages. Once two or more banks are activated, column to column interleave operation can be done between different pages. Similar to the page mode of conventional DRAM’s, burst read or write accesses on any column address are possible once the RAS cycle latches the sense amplifiers. The maximum tRAS or the refresh interval time limits the number of random column accesses. A new burst access can be done even before the previous burst ends. The interrupt operation at every clock cycles is supported. When the previous burst is interrupted, the remaining addresses are overridden by the new address with the full burst length. An interrupt which accompanies V54C365404VD(L) Rev. 0.9 September 2001 7 MOSEL VITELIC V54C365404VD(L) Burst Length and Sequence: Burst Starting Address Length (A2 A1 A0) 2 xx0 xx1 4 x00 x01 x10 x11 8 000 001 010 011 100 101 110 111 Full Page nnn Sequential Burst Addressing (decimal) Interleave Burst Addressing (decimal) 0, 1 1, 0 0, 1, 2, 3, 0 1 2 3 4 5 6 7 1 2 3 4 5 6 7 0 2 3 4 5 6 7 0 1 0, 1 1, 0 1, 2, 3, 0, 2, 3, 0, 1, 3 4 5 6 7 0 1 2 4 5 6 7 0 1 2 3 0, 1, 2, 3, 3 0 1 2 5 6 7 0 1 2 3 4 6 7 0 1 2 3 4 5 7 0 1 2 3 4 5 6 Cn, Cn+1, Cn+2,..... 0 1 2 3 4 5 6 7 1 0 3 2 5 4 7 6 2 3 0 1 6 7 4 5 1, 0, 3, 2, 2, 3, 0, 1, 3 2 1 0 7 6 5 4 4 5 6 7 0 1 2 3 3 2 1 0 5 4 7 6 1 0 3 2 6 7 4 5 2 3 0 1 7 6 5 4 3 2 1 0 not supported function for writes. When DQM is activated, the write operation at the next clock is prohibited (DQM Write Mask Latency tDQW = zero clocks). Refresh Mode SDRAM has two refresh modes, Auto Refresh and Self Refresh. Auto Refresh is similar to the CAS -before-RAS refresh of conventional DRAMs. All of banks must be precharged before applying any refresh mode. An on-chip address counter increments the word and the bank addresses and no bank information is required for both refresh modes. The chip enters the Auto Refresh mode, when RAS and CAS are held low and CKE and WE are held high at a clock timing. The mode restores word line after the refresh and no external precharge command is necessary. A minimum tRC time is required between two automatic refreshes in a burst refresh mode. The same rule applies to any access command after the automatic refresh operation. The chip has an on-chip timer and the Self Refresh mode is available. It enters the mode when RAS, CAS, and CKE are low and WE is high at a clock timing. All of external control signals including the clock are disabled. Returning CKE to high enables the clock and initiates the refresh exit operation. After the exit command, at least one tRC delay is required prior to any access command. Suspend Mode During normal access mode, CKE is held high enabling the clock. When CKE is low, it freezes the internal clock and extends data read and write operations. One clock delay is required for mode entry and exit (Clock Suspend Latency tCSL). Power Down In order to reduce standby power consumption, a power down mode is available. All banks must be precharged and the necessary Precharge delay (trp) must occur before the SDRAM can enter the Power Down mode. Once the Power Down mode is initiated by holding CKE low, all of the receiver circuits except CLK and CKE are gated off. The Power Down mode does not perform any refresh operations, therefore the device can’t remain in Power Down mode longer than the Refresh period (tref) of the device. Exit from this mode is performed by taking CKE “high”. One clock delay is required for mode entry and exit. DQM Function DQM has two functions for data I/O read and write operations. During reads, when it turns to “high” at a clock timing, data outputs are disabled and become high impedance after two clock delay (DQM Data Disable Latency tDQZ ). It also provides a data mask V54C365404VD(L) Rev. 0.9 September 2001 Auto Precharge Two methods are available to precharge SDRAMs. In an automatic precharge mode, the CAS timing accepts one extra address, CA10, to determine whether the chip restores or not after the 8 MOSEL VITELIC V54C365404VD(L) operation. If CA10 is high when a Read Command is issued, the Read with Auto-Precharge function is initiated. The SDRAM automatically enters the precharge operation one clock before the last data out for CAS latencies 2, two clocks for CAS latencies 3 and three clocks for CAS latencies 4. If CAS10 is high when a Write Command is issued, the Write with Auto-Precharge function is initiated. The SDRAM automatically enters the precharge operation a time delay equal to tWR (Write recovery time) after the last data in. Burst Termination Once a burst read or write operation has been initiated, there are several methods in which to terminate the burst operation prematurely. These methods include using another Read or Write Command to interrupt an existing burst operation, use a Precharge Command to interrupt a burst cycle and close the active bank, or using the Burst Stop Command to terminate the existing burst operation but leave the bank open for future Read or Write Commands to the same page of the active bank. When interrupting a burst with another Read or Write Command care must be taken to avoid I/O contention. The Burst Stop Command, however, has the fewest restrictions making it the easiest method to use when terminating a burst operation before it has been completed. If a Burst Stop command is issued during a burst write operation, then any residual data from the burst write cycle will be ignored. Data that is presented on the I/O pins before the Burst Stop Command is registered will be written to the memory. Precharge Command There is also a separate precharge command available. When RAS and WE are low and CAS is high at a clock timing, it triggers the precharge operation. Three address bits, BA0, BA1 and A10 are used to define banks as shown in the following list. The precharge command can be imposed one clock before the last data out for CAS latency = 2, two clocks before the last data out for CAS latency = 3 and three clocks before the last data out for CAS latency= 4. Writes require a time delay twr from the last data out to apply the precharge command. Bank Selection by Address Bits: A10 BA0 BA1 0 0 0 Bank 0 0 0 1 Bank 1 0 1 0 Bank 2 0 1 1 Bank 3 1 X X all Banks V54C365404VD(L) Rev. 0.9 September 2001 9 MOSEL VITELIC V54C365404VD(L) Absolute Maximum Ratings* Operating temperature range ..................0 to 70 °C Storage temperature range ............... -55 to 150 °C Input/output voltage .................. -0.3 to (VCC+0.3) V Power supply voltage .......................... -0.3 to 4.6 V Power dissipation ............................................. 1 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. Recommended Operation and Characteristics for LV-TTL TA = 0 to 70 °C; VSS = 0 V; VCC,VCCQ = 3.3 V ± 0.3 V Limit Values Parameter Symbol min. max. Unit Notes Input high voltage VIH 2.0 Vcc+0.3 V 1, 2 Input low voltage VIL – 0.3 0.8 V 1, 2 Output high voltage (IOUT = – 2.0 mA) VOH 2.4 – V Output low voltage (IOUT = 2.0 mA) VOL – 0.4 V Input leakage current, any input (0 V < V IN < 3.6 V, all other inputs = 0 V) II(L) –5 5 µA Output leakage current (DQ is disabled, 0 V < VOUT < VCC ) IO(L) –5 5 µA Note: 1. All voltages are referenced to VSS. 2. VIH may overshoot to VCC + 2.0 V for pulse width of < 4ns with 3.3V. VIL may undershoot to -2.0 V for pulse width < 4.0 ns with 3.3V. Pulse width measured at 50% points with amplitude measured peak to DC reference. V54C365404VD(L) Rev. 0.9 September 2001 10 MOSEL VITELIC V54C365404VD(L) Operating Currents (TA = 0 to 70°C, VCC = 3.3V ± 0.3V) (Recommended Operating Conditions unless otherwise noted) Max. Symbol Parameter & Test Condition -7 -75 -8PC -8 Unit Note 150 140 130 130 mA 7 ICC1 Operating Current tRC = tRCMIN., tRC = tCKMIN. Active-precharge command cycling, without Burst Operation 1 bank operation ICC2P Precharge Standby Current in Power Down Mode CS =VIH , CKE≤ VIL(max) tCK = min. 2 2 2 2 mA 7 tCK = Infinity 1 1 1 1 mA 7 Precharge Standby Current in Non-Power Down Mode CS =VIH , CKE≥ VIL(max) tCK = min. 45 40 35 35 mA tCK = Infinity 5 5 5 5 mA No Operating Current tCK = min, CS = VIH(min) bank ; active state ( 4 banks) CKE ≥ VIH(MIN.) 55 50 45 45 mA CKE ≤ VIL(MAX.) (Power down mode) 8 8 8 8 mA ICC2PS ICC2N ICC2NS ICC3 ICC3P ICC4 Burst Operating Current tCK = min Read/Write command cycling 120 120 110 110 mA 7,8 ICC5 Auto Refresh Current tCK = min Auto Refresh command cycling 150 140 130 130 mA 7 ICC6 Self Refresh Current Self Refresh Mode, CKE=<0.2V 1 1 1 1 mA 500 500 500 500 µA L-version Notes: 7. These parameters depend on the cycle rate and these values are measured by the cycle rate under the minimum value of tCK and tRC. Input signals are changed one time during tCK. 8. These parameter depend on output loading. Specified values are obtained with output open. V54C365404VD(L) Rev. 0.9 September 2001 11 MOSEL VITELIC V54C365404VD(L) AC Characteristics 1,2, 3 TA = 0 to 70 °C; VSS = 0 V; VDD = 3.3 V ± 0.3 V, tT = 1 ns Limit Values -7 # Symbol Parameter -8PC -75 -8 Min. Max. Min. Max. Min. Max. Min. Max. Unit Note Clock and Clock Enable 1 2 3 tCK tCK tAC Clock Cycle Time CAS Latency = 3 CAS Latency = 2 7 10 – – 7.5 10 – – 8 10 – – 8 12 – – s ns ns Clock Frequency CAS Latency = 3 CAS Latency = 2 – – 143 100 – – 133 100 – – 125 100 – – 125 83 MHz MHz Access Time from Clock CAS Latency = 3 CAS Latency = 2 – _ 5.4 5.5 – _ 5.4 6 – _ 6 6 – _ 7 7 ns ns 2, 4 4 tCH Clock High Pulse Width 2.5 – 2.5 – 3 – 3 – ns 5 tCL Clock Low Pulse Width 2.5 – 2.5 – 3 – 3 – ns 6 tT Transition Tim 0.3 1.2 0.3 1.2 0.5 10 0.5 10 ns Setup and Hold Times 7 tIS Input Setup Time 1.5 – 1.5 – 2 – 2.5 – ns 5 8 tIH Input Hold Time 0.8 – 0.8 – 1 – 1 – ns 5 9 tCKS CKE Setup Time 1.5 – 1.5 – 2 – 2.5 – ns 5 10 tCKH CKE Hold Time 0.8 – 0.8 – 1 – 1 – ns 5 11 tRSC Mode Register Set-up Time 14 – 15 – 16 – 16 – ns 12 tSB Power Down Mode Entry Time 0 7 0 7.5 0 8 0 8 ns Row to Column Delay Time 20 – 20 – 20 – 24 – ns 6 Common Parameters 13 tRCD 14 tRP Row Precharge Time 20 – 20 – 20 – 24 – ns 6 15 tRAS Row Active Time 42 100K 45 100K 45 100k 48 100k ns 6 16 tRC Row Cycle Time 60 – 60 – 60 – 72 – ns 6 17 tRRD Activate(a) to Activate(b) Command Period 14 – 15 – 16 – 20 – ns 6 18 tCCD CAS(a) to CAS(b) Command Period 1 – 1 – 1 – 1 – CLK 64 — 64 — 64 — 64 ms Refresh Cycle 19 tREF Refresh Period (4096 cycles) — 20 tSREX Self Refresh Exit Time 10 V54C365404VD(L) Rev. 0.9 September 2001 10 12 10 12 ns MOSEL VITELIC V54C365404VD(L) AC Characteristics (Cont’d) Limit Values -7 # Symbol Parameter -8PC -75 -8 Min. Max. Min. Max. Min. Max. Min. Max. Unit Note 2 Read Cycle 21 tOH Data Out Hold Time 2.7 – 2.7 – 3 – 3 – ns 22 tLZ Data Out to Low Impedance Time 1 – 1 – 0 – 0 – ns 23 tHZ Data Out to High Impedance Time – 5.4 – 5.4 3 8 3 8 ns 24 tDQZ DQM Data Out Disable Latency – 2 – 2 – 2 – 2 CLK Write Recovery Time 2 – 2 – 2 – 2 – CLK DQM Write Mask Latency 0 – 0 – 0 – – – CLK Write Cycle 25 tWR 26 tDQW V54C365404VD(L) Rev. 0.9 September 2001 13 7 MOSEL VITELIC V54C365404VD(L) Notes for AC Parameters: 1. For proper power-up see the operation section of this data sheet. 2. AC timing tests have VIL = 0.8V and V IH = 2.0V with the timing referenced to the 1.4 V crossover point. The transition time is measured between VIH and VIL. All AC measurements assume tT = 1ns with the AC output load circuit shown in Figure 1. tCK VIH CLK VIL + 1.4 V tT tCS tCH 50 Ohm 1.4V COMMAND Z=50 Ohm tLZ I/O tAC tAC 50 pF tOH 1.4V OUTPUT tHZ Figure 1. 4. If clock rising time is longer than 1 ns, a time (tT/2 – 0.5) ns has to be added to this parameter. 5. If tT is longer than 1 ns, a time (tT – 1) ns has to be added to this parameter. 6. These parameter account for the number of clock cycle and depend on the operating frequency of the clock, as follows: the number of clock cycle = specified value of timing period (counted in fractions as a whole number) Self Refresh Exit is a synchronous operation and begins on the 2nd positive clock edge after CKE returns high. Self Refresh Exit is not complete until a time period equal to tRC is satisfied once the Self Refresh Exit command is registered. 7. Referenced to the time which the output achieves the open circuit condition, not to output voltage levels V54C365404VD(L) Rev. 0.9 September 2001 14 MOSEL VITELIC V54C365404VD(L) Timing Diagrams 1. Bank Activate Command Cycle 2. Burst Read Operation 3. Read Interrupted by a Read 4. Read to Write Interval 4.1 Read to Write Interval 4.2 Minimum Read to Write Interval 4.3 Non-Minimum Read to Write Interval 5. Burst Write Operation 6. Write and Read Interrupt 6.1 Write Interrupted by a Write 6.2 Write Interrupted by Read 7. Burst Write & Read with Auto-Precharge 7.1 Burst Write with Auto-Precharge 7.2 Burst Read with Auto-Precharge 8. Burst Termination 8.1 Termination of a Full Page Burst Write Operation 8.2 Termination of a Full Page Burst Write Operation 9. AC- Parameters 9.1 AC Parameters for a Write Timing 9.2 AC Parameters for a Read Timing 10. Mode Register Set 11. Power on Sequence and Auto Refresh (CBR) 12. Clock Suspension (using CKE) 12.1 Clock Suspension During Burst Read CAS Latency = 2 12. 2 Clock Suspension During Burst Read CAS Latency = 3 12. 3 Clock Suspension During Burst Write CAS Latency = 2 12. 4 Clock Suspension During Burst Write CAS Latency = 3 13. Power Down Mode and Clock Suspend 14. Self Refresh (Entry and Exit) 15. Auto Refresh (CBR) V54C365404VD(L) Rev. 0.9 September 2001 15 MOSEL VITELIC V54C365404VD(L) Timing Diagrams (Cont’d) 16. Random Column Read ( Page within same Bank) 16.1 CAS Latency = 2 16.2 CAS Latency = 3 17. Random Column Write ( Page within same Bank) 17.1 CAS Latency = 2 17.2 CAS Latency = 3 18. Random Row Read ( Interleaving Banks) with Precharge 18.1 CAS Latency = 2 18.2 CAS Latency = 3 19. Random Row Write ( Interleaving Banks) with Precharge 19.1 CAS Latency = 2 19.2 CAS Latency = 3 20. Full Page Read Cycle 20.1 CAS Latency = 2 20.2 CAS Latency = 3 21. Full Page Write Cycle 21.1 CAS Latency = 2 21.2 CAS Latency = 3 22. Precharge Termination of a Burst 22.1 CAS Latency = 2 22.2 CAS Latency = 3 V54C365404VD(L) Rev. 0.9 September 2001 16 MOSEL VITELIC V54C365404VD(L) 1. Bank Activate Command Cycle (CAS latency = 3) T0 T1 T T T T T CLK .......... ADDRESS Bank A Col. Addr. Bank A Row Addr. Bank A Row Addr. Bank B Row Addr. .......... tRCD COMMAND Bank A Activate tRRD NOP Write A with Auto Precharge NOP Bank B Activate .......... Bank A Activate NOP : “H” or “L” tRC 2. Burst Read Operation (Burst Length = 4, CAS latency = 2, 3, 4) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK COMMAND READ A NOP CAS latency = 2 tCK2, I/O’s CAS latency = 3 tCK3, I/O’s NOP DOUT A0 NOP NOP DOUT A1 DOUT A2 DOUT A0 NOP NOP NOP DOUT A3 DOUT A1 DOUT A2 DOUT A3 DOUT A0 DOUT A1 DOUT A2 CAS latency = 4 tCK4, I/O’s V54C365404VD(L) Rev. 0.9 September 2001 17 DOUT A3 NOP MOSEL VITELIC V54C365404VD(L) 3. Read Interrupted by a Read (Burst Length = 4, CAS latency = 2, 3, 4) T0 T1 READ A READ B T2 T3 T4 T5 T6 T7 T8 CLK COMMAND CAS latency = 2 NOP DOUT A0 tCK2, I/O’s CAS latency = 3 tCK3, I/O’s NOP NOP NOP NOP NOP DOUT B0 DOUT B1 DOUT B2 DOUT B3 DOUT A0 DOUT B0 DOUT B1 DOUT B2 DOUT B3 DOUT A0 DOUT B0 DOUT B1 DOUT B2 T4 T5 T6 NOP CAS latency = 4 tCK4, I/O’s DOUT B3 4.1 Read to Write Interval (Burst Length = 4, CAS latency = 3) T0 T1 T2 T3 T7 T8 CLK Minimum delay between the Read and Write Commands = 4+1 = 5 cycles tDQW DQM tDQZ COMMAND NOP READ A I/O’s NOP NOP NOP WRITE B DIN B0 DOUT A0 Must be Hi-Z before the Write Command : “H” or “L” V54C365404VD(L) Rev. 0.9 September 2001 NOP 18 NOP NOP DIN B1 DIN B2 MOSEL VITELIC V54C365404VD(L) 4.2 Minimum Read to Write Interval (Burst Length = 4, CAS latency = 2) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK tDQW DQM tDQZ 1 Clk Interval COMMAND NOP NOP BANK A ACTIVATE NOP READ A WRITE A NOP NOP NOP DIN A1 DIN A2 DIN A3 Must be Hi-Z before the Write Command CAS latency = 2 DIN A0 tCK2, I/O’s : “H” or “L” 4.3 Non-Minimum Read to Write Interval (Burst Length = 4, CAS latency = 2, 3, 4 T0 T1 T2 T3 T4 T5 T6 T7 T8 NOP NOP DIN B0 DIN B1 DIN B2 DIN B0 DIN B1 DIN B2 DIN B0 DIN B1 DIN B2 CLK tDQW DQM tDQZ COMMAND NOP READ A NOP NOP READ A NOP WRITE B CAS latency = 2 tCK1, I/O’s DOUT A0 DOUT A1 Must be Hi-Z before the Write Command CAS latency = 3 DOUT A0 tCK2, I/O’s CAS latency = 4 tCK3, I/O’s : “H” or “L” V54C365404VD(L) Rev. 0.9 September 2001 19 MOSEL VITELIC V54C365404VD(L) 5. Burst Write Operation (Burst Length = 4, CAS latency = 2, 3, or 4) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK COMMAND NOP I/O’s WRITE A DIN A0 NOP NOP NOP DIN A1 DIN A2 DIN A3 The first data element and the Write are registered on the same clock edge. NOP NOP NOP NOP don’t care Extra data is ignored after termination of a Burst. 6.1 Write Interrupted by a Write (Burst Length = 4, CAS latency = 2, 3, or 4) T0 T1 T2 WRITE A WRITE B T3 T4 T5 T6 T7 T8 CLK COMMAND NOP NOP NOP NOP DIN B1 DIN B2 DIN B3 1 Clk Interval I/O’s DIN A0 V54C365404VD(L) Rev. 0.9 September 2001 DIN B0 20 NOP NOP NOP MOSEL VITELIC V54C365404VD(L) 6.2 Write Interrupted by a Read (Burst Length = 4, CAS latency = 2, 3, 4) T0 T1 T2 WRITE A READ B T3 T4 T5 T6 T7 T8 CLK COMMAND NOP CAS latency = 2 tCK2, I/O’s CAS latency = 3 tCK3, I/O’s CAS latency = 4 tCK4, I/O’s NOP NOP DIN A0 don’t care DIN A0 don’t care don’t care DIN A0 don’t care don’t care DOUT B0 NOP NOP NOP DOUT B1 DOUT B2 DOUT B3 DOUT B0 DOUT B1 DOUT B2 DOUT B3 DOUT B0 DOUT B1 DOUT B2 don’t care Input data for the Write is ignored. NOP Input data must be removed from the I/O’s at least one clock cycle before the Read dataAPpears on the outputs to avoid data contention. 7. Burst Write with Auto-Precharge Burst Length = 2, CAS latency = 2, 3, 4) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK COMMAND BANK A ACTIVE NOP NOP WRITE A NOP Auto-Precharge NOP tWR CAS latency = 2 I/O’s DIN A0 DIN A1 tWR CAS latency = 3 I/O’s DIN A0 DIN A1 tWR NOP tRP * tRP * tRP CAS latency = 4 I/O’s DIN A0 DIN A1 NOP * * Begin Autoprecharge Bank can be reactivated after trp V54C365404VD(L) Rev. 0.9 September 2001 21 NOP MOSEL VITELIC V54C365404VD(L) 7.2 Burst Read with Auto-Precharge Burst Length = 4, CAS latency = 2, 3, 4) T0 T1 T2 WRITE A READ B T3 T4 T5 T6 T7 T8 CLK COMMAND NOP CAS latency = 2 tCK2, I/O’s CAS latency = 3 tCK3, I/O’s DOUT A0 NOP NOP DOUT A1 DOUT A0 * * DOUT A1 DOUT A0 tCK4, I/O’s NOP NOP NOP tRP DOUT A2 * CAS latency = 4 NOP DOUT A3 tRP DOUT A2 DOUT A3 tRP DOUT A1 DOUT A2 * DOUT A3 Begin Autoprecharge Bank can be reactivated after tRP V54C365404VD(L) Rev. 0.9 September 2001 22 MOSEL VITELIC V54C365404VD(L) 8.1 Termination of a Full Page Burst Read Operation (CAS latency = 2, 3, 4) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK COMMAND READ A NOP CAS latency = 2 tCK2, I/O’s NOP NOP Burst Stop DOUT A0 DOUT A1 DOUT A2 DOUT A3 DOUT A0 DOUT A1 DOUT A2 DOUT A3 DOUT A0 DOUT A1 DOUT A2 CAS latency = 3 tCK3, I/O’s NOP NOP NOP NOP CAS latency = 4 tCK4, I/O’s DOUT A3 The burst ends after a delay equal to the CAS latency. 8.2 Termination of a Full Page Burst Write Operation (CAS latency = 2, 3, 4) T0 T1 T2 T3 T4 T5 T6 T7 T8 CLK COMMAND NOP WRITE A NOP NOP DIN A1 DIN A2 Burst Stop NOP CAS latency = 2,3,4 I/O’s DIN A0 don’t care Input data for the Write is masked. V54C365404VD(L) Rev. 0.9 September 2001 23 NOP NOP NOP T0 T1 T2 T3 T4 Burst Length = 4, CAS Latency = 2 T5 T7 T6 T8 T9 T10 T11 T12 T13 T14 T15 T17 T16 T18 T19 T20 CLK tCH tCK2 tCL tCS CKE tCKS Begin Auto Precharge Bank A tCH Begin Auto Precharge Bank B tCKH T21 T22 CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 9.1 AC Parameters for Write Timing CS RAS CAS WE 24 BA tAH AP RAx RBx RAy RAz RBy RAz RBy tAS Addr CAx RAx RBx CBx RAy RAy DQM tDS tRC I/O Hi-Z Ax0 Ax1 Ax2 tWR tDH Ax3 Bx0 Bx1 Bx2 Activate Write with Activate Write with Activate Command Auto Precharge Command Auto Precharge Command Bank A Command Bank B Command Bank A Bank A Bank B Bx3 Ay0 Write Command Bank A Ay1 Ay2 tRP tRRD Ay3 Precharge Command Bank A Activate Command Bank A Activate Command Bank B V54C365404VD(L) tRCD T0 Burst Length = 2, CAS Latency = 2 T1 T2 T3 T4 T5 T7 T6 T8 T9 T10 T12 T11 CLK tCK2 tCH tCL tCS CKE Begin Auto Precharge Bank B tCH tCKS tCKH T13 CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 9.2 AC Parameters for Read Timing CS RAS CAS 25 WE BA tAH AP RAx RBx RAy tAS Addr RAx CAx RBx RBx RAy tRRD tRAS tRC tAC2 tRCD I/O tLZ Hi-Z tAC2 tOH Ax0 Activate Command Bank A Read Command Bank A Activate Command Bank B tRP tHZ Ax1 Read with Auto Precharge Command tHZ Bx0 Precharge Command Bank A Bx1 Activate Command Bank A V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 CLK CKE 2 Clock min. T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 10. Mode Register Set CS RAS CAS 26 WE BA AP Address Key Addr Mode Register Set Command Any Command V54C365404VD(L) Precharge Command All Banks T0 T T T T T T T T T T1 T T T T T T T T T CLK High level is required CKE 2 Clock min. Minimum of 2 Refresh Cycles are required T T T CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 11. Power on Sequence and Auto Refresh (CBR) CS RAS CAS WE 27 BA AP Address Key Addr DQM tRC Hi-Z Precharge 1st Auto Refresh Command Command All Banks Inputs must be stable for 200µs 2nd Auto Refresh Command Mode Register Set Command Any Command V54C365404VD(L) tRP I/O T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 Burst Length = 4, CAS Latency = 1 T11 T12 CLK tCK1 CKE T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 12.1 Clock Suspension During Burst Read (Using CKE) (1 of 3) CS RAS CAS 28 WE BA AP RAx Addr RAx CAx tHZ I/O Hi-Z Ax0 Activate Command Bank A Read Command Bank A Ax1 Ax2 Ax3 Clock Suspend 1 Cycle Clock Suspend 2 Cycles Clock Suspend 3 Cycles V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 Burst Length = 4, CAS Latency = 2 T11 T12 T13 CLK tCK2 CKE T14 T15 T16 T17 T18 T19 T20 T21 T22 CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 12.2 Clock Suspension During Burst Read (Using CKE) (2 of 3) CS RAS CAS 29 WE BA AP RAx Addr RAx CAx tHZ I/O Hi-Z Ax0 Activate Command Bank A Read Command Bank A Ax1 Ax2 Ax3 Clock Suspend 1 Cycle Clock Suspend 2 Cycles Clock Suspend 3 Cycles V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T7 T6 T8 T9 T10 T11 Burst Length = 4, CAS Latency = 3 T12 T13 T14 T15 CLK tCK3 CKE T16 T17 T18 T19 T20 T21 T22 CILETIV LESOM ) V54C365404VD(L) Rev. 0.9 September 2001 12.3 Clock Suspension During Burst Read (Using CKE) (3 of 3) CS RAS CAS 30 WE BA AP RAx Addr RAx CAx tHZ I/O Hi-Z Ax0 Activate Command Bank A Read Command Bank A Ax1 Ax2 Ax3 Clock Suspend 1 Cycle Clock Suspend 2 Cycles Clock Suspend 3 Cycles V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 Burst Length = 4, CAS Latency = 1 T11 T12 CLK tCK1 CKE T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 12.4 Clock Suspension During Burst Write (Using CKE) (1 of 3) CS RAS CAS 31 WE BA AP RAx Addr RAx CAx I/O Hi-Z DAx0 Activate Command Bank A DAx1 Clock Suspend 1 Cycle Write Command Bank A DAx2 Clock Suspend 2 Cycles DAx3 Clock Suspend 3 Cycles V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 Burst Length = 4, CAS Latency = 2 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CLK tCK2 tCKSP tCKSP CKE CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 13. Power Down Mode and Clock Suspend CS RAS CAS 32 WE BA AP RAx Addr RAx CAx tHZ I/O Hi-Z Ax0 Activate Command Bank A Clock Suspend Mode Entry Read Command Bank A Clock Suspend Mode Exit Ax1 Clock Mask Start Ax2 Clock Mask End Ax3 Precharge Command Bank A Power Down Mode Entry Power Down Mode Exit Any Command V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T T T T T T T T CLK t CKS tSREX CKE T T T T T T T T T CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 14. Self Refresh (Entry and Exit) CS RAS CAS WE 33 BA AP Addr tRC I/O Hi-Z All Banks must be idle Self Refresh Entry Begin Self Refresh Exit Command Self Refresh Exit Command issued Self Refresh Exit V54C365404VD(L) DQM T0 T1 T2 Burst Length = 4, CAS Latency = 2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T17 T16 T18 T19 T20 T21 T22 CLK tCK2 CKE CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 15. Auto Refresh (CBR) CS RAS CAS 34 WE BA AP RAx Addr RAx I/O tRC tRC (Minimum Interval) Hi-Z Ax0 Precharge Command All Banks Auto Refresh Command Auto Refresh Command Activate Command Bank A Read Command Bank A Ax1 Ax2 Ax3 V54C365404VD(L) tRP DQM CAx T0 T1 T2 T3 T4 T5 T7 T6 T8 T9 T10 Burst Length = 4, CAS Latency = 2 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CLK tCK2 CKE CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 16.1 Random Column Read (Page within same Bank) (1 of 2) CS RAS CAS 35 WE BA AP RAw Addr RAw RAz CAw CAx CAy RAz CAz I/O Hi-Z Aw0 Activate Command Bank A Read Command Bank A Aw1 Aw2 Read Command Bank A Aw3 Ax0 Read Command Bank A Ax1 Ay0 Ay1 Ay2 Precharge Command Bank A Ay3 Az0 Activate Command Bank A Read Command Bank A Az1 Az2 Az3 V54C365404VD(L) DQM CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 16.2 Random Column Read (Page within same Bank) (2 of 2) Burst Length = 4, CAS Latency = 3 T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 CLK tCK3 CKE T22 CS RAS CAS 36 WE BA AP RAw Addr RAw RAz CAw CAx CAy CAz Activate Command Bank A Read Command Bank A DQM I/O Hi-Z Aw0 Activate Command Bank A Read Command Bank A Aw1 Read Command Bank A Aw2 Aw3 Read Command Bank A Ax0 Ax1 Ay0 Ay1 Ay2 Precharge Command Bank A Ay3 V54C365404VD(L) RAz T0 T1 T2 T3 T4 T5 T7 T6 T8 T9 T10 Burst Length = 4, CAS Latency = 2 T11 T12 T13 T14 T15 T17 T16 T18 T19 T20 CLK tCK2 CKE T21 T22 CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 17.1 Random Column Write (Page within same Bank) (1 of 2) CS RAS CAS 37 WE BA AP RBz Addr RBz RAw RBz CBz CBx CBy RAw RBz CAx CBz I/O Hi-Z DBw0 DBw1 DBw2 DBw3 DBx0 DBx1 DBy0 DBy1 DBy2 DBy3 Activate Command Bank B Write Command Bank B Write Command Bank B Write Command Bank B DBz0 DBz1 DBz2 DBz3 Precharge Command Bank B Activate Command Bank B Write Command Bank B V54C365404VD(L) DQM Burst Length = 4, CAS Latency = 3 T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CLK tCK3 CKE CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 17.2 Random Column Write (Page within same Bank) (2 of 2) CS RAS CAS 38 WE BA AP RBz Addr RBz RBz CBz CBx CBy RBz CBz I/O Hi-Z DBw0 DBw1 DBw2 DBw3 DBx0 DBx1 DBy0 DBy1 DBy2 DBy3 Activate Command Bank B Write Command Bank B Write Command Bank B Write Command Bank B DBz0 DBz1 Precharge Command Bank B Activate Command Bank B Write Command Bank B V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 T7 T8 Burst Length = 8, CAS Latency = 2 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 CLK tCK2 CKE High T22 CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 18.1 Random Row Read (Interleaving Banks) (1 of 2) CS RAS CAS WE 39 A11(BS) A10 RBx A0 - A9 RBx CAx tRP Bx1 Bx2 Bx3 Bx4 Activate Command Bank A Bx5 Bx6 Bx7 Precharge Command Bank B Read Command Bank A Ax0 Ax1 Activate Command Bank B Ax2 Ax3 Ax4 Ax5 Ax6 Ax7 Read Command Bank B By0 By1 V54C365404VD(L) Bx0 Read Command Bank B CBy RBy tAC2 Hi-Z Activate Command Bank B RBy RAx CBx tRCD DQM I/O RAx T0 T1 T2 T3 T4 T5 T6 T7 T8 Burst Length = 8, CAS Latency = 3 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 CLK tCK3 CKE High T22 CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 18. 2 Random Row Read (Interleaving Banks) (2 of 2) CS RAS CAS 40 WE A11(BS) A10 RBx A0 - A9 RBx CAx tRP Bx1 Bx2 Activate Command Bank A Bx3 Bx4 Bx5 Read Command Bank A Bx6 Bx7 Precharge Command Bank B Ax0 Ax1 Ax2 Activate Command Bank B Ax3 Ax4 Ax5 Ax6 Read Command Bank B Ax7 By0 Precharge Command Bank A V54C365404VD(L) Bx0 Read Command Bank B CBy RBy tAC3 Hi-Z Activate Command Bank B RBy RAx CBx tRCD DQM I/O RAx T0 T1 T2 T3 T4 T5 T6 T7 T8 Burst Length = 8, CAS Latency = 2 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CLK tCK2 CKE High CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 19.1 Random Row Write (Interleaving Banks) (1 of 2) CS RAS CAS 41 WE A11(BS) A10 RAx A0 - A9 RAx CAy CAX RBx tRCD Activate Command Bank A RAy CAy tDPL tRP DAx0 DAx1 DAx2 DAx3 DAx4 DAx5 DAx6 DAx7 DBx0 DBx1 DBx2 DBx3 DBx4 DBx5 DBx6 DBx7 DAy0 DAy1 DAy2 DAy3 DAy4 Write Command Bank A Activate Command Bank B Write Command Bank B Precharge Command Bank A Activate Command Bank A Write Command Bank A Precharge Command Bank B V54C365404VD(L) Hi-Z CBx tDPL DQM I/O RAy RBx T0 T1 T2 T3 T4 T5 T6 T7 T8 Burst Length = 8, CAS Latency = 3 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 CLK tCK3 CKE High CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 19.2 Random Row Write (Interleaving Banks) (2 of 2) CS RAS CAS 42 WE A11(BS) A10 RAx A0 - A9 RAx RAy RBx CAX RBx tDPL tRP CAy tDPL DQM I/O Hi-Z Activate Command Bank A DAx0 DAx1 DAx2 DAx3 DAx4 DAx5 DAx6 DAx7 DBx0 DBx1 DBx2 DBx3 DBx4 DBx5 DBx6 DBx7 DAy0 DAy1 DAy2 DAy3 Write Command Bank A Activate Command Bank B Write Command Bank B Precharge Command Bank A Activate Command Bank A Write Command Bank A Precharge Command Bank B V54C365404VD(L) tRCD RAy CBx T0 T1 T2 T3 Burst Length = Full Page, CAS Latency = 2 T4 T5 T6 T T T T T T T T T T T T T CLK tCK2 CKE High T T T CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 20.1 Full Page Read Cycle (1 of 2) CS RAS CAS 43 WE BA AP RAx Addr RAx RBx CAx RBy CBx RBx RBy tRP DQM Hi-Z Activate Command Bank A Ax Read Command Bank A Ax+1 Activate Command Bank B Ax+2 Ax-2 Ax-1 Ax Ax+1 Read Command Bank B The burst counter wraps from the highest order page address back to zero during this time interval. Bx Bx+1 Bx+2 Bx+3 Bx+4 Bx+5 Full Page burst operation does not terminate when the burst length is satisfied; the burst counter increments and continues bursting beginning with the starting address. Bx+6 Precharge Command Bank B Burst Stop Command Activate Command Bank B V54C365404VD(L) I/O T0 T1 T2 T3 Burst Length = Full Page, CAS Latency = 3 T4 T5 T6 T7 T8 T T T T T T T T T T T T CLK tCK3 CKE High T T CILETIV LESOM \ V54C365404VD(L) Rev. 0.9 September 2001 20.2 Full Page Read Cycle (2 of 2) CS RAS CAS WE 44 BA AP RAx Addr RAx RBx CAx RBy CBx RBx RBy tRRD DQM Hi-Z Activate Command Bank A Ax Read Command Bank A Activate Command Bank B Ax+1 Ax+2 Ax-2 Ax-1 Ax Ax+1 Bx Bx+1 Bx+2 Bx+3 Bx+4 Bx+5 Full Page burst operation does not terminate when the length is Precharge satisfied; the burst counter Command increments and continues Bank B The burst counter wraps bursting beginning with from the highest order the starting address. page address back to zero Burst Stop during this time interval. Command Read Command Bank B Activate Command Bank B V54C365404VD(L) I/O T0 T1 T2 T3 T4 Burst Length = Full Page, CAS Latency = 2 T5 T T T T T T T T T T T T T T CLK tCK2 CKE High T T T CILETIV LESOM \) V54C365404VD(L) Rev. 0.9 September 2001 21.1 Full Page Write Cycle (1 of 2) CS RAS CAS WE 45 BA AP RAx Addr RAx RBx CAx RBx DAx DAx+1 DAx+2 DAx+3 RBy CBx RBy DQM Hi-Z Activate Command Bank A Write Command Bank A DAx-1 DAx DAx+1 DBx DBx+1 DBx+2 DBx+3 DBx+4 DBx+5 DBx+6 Activate Write Command Precharge Command Data is ignored. Bank B Command Bank B Bank B The burst counter wraps Full Page burst operation does not from the highest order terminate when the burst length is satisfied; page address back to zero the burst counter increments and continues Burst Stop during this time interval. bursting beginning with the starting address. Command Activate Command Bank B V54C365404VD(L) I/O T0 T1 T2 T3 Burst Length = Full Page, CAS Latency = 3 T4 T5 T6 T T T T T T T T T T T T T T CLK tCK3 CKE High T T CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 21.2 Full Page Write Cycle (2 of 2) CS RAS CAS WE 46 BA AP RAx Addr RAx RBy RBx CAx RBx DAx DAx+1 DAx+2 DAx+3 RBy CBx DQM Hi-Z Activate Command Bank A Data is ignored. Write Command Bank A DAx-1 DAx DAx+1 DBx DBx+1 DBx+2 DBx+3 DBx+4 DBx+5 Activate Write Command Precharge Command Full Page burst operation does not Bank B Command Bank B terminate when the length is Bank B satisfied; the burst counter The burst counter wraps increments and continues from the highest order bursting beginning with page address back to zero Burst Stop the starting address. during this time interval. Command Activate Command Bank B V54C365404VD(L) I/O T0 T1 T2 T3 T4 T5 T7 T6 T8 T9 T10 T11 T12 T13 T14 T15 T17 T16 T18 T19 T20 T21 CLK tCK2 CKE High T22 CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 Burst Length = 8 or Full Page, CAS Latency = 2 22.1 Precharge Termination of a Burst (1 of 2) CS RAS CAS 47 WE BA AP RAx Addr RAx RAy RAy CAx RAz RAz CAy CAz tRP tRP tRP I/O Hi-Z Activate Command Bank A DAx0 DAx1 DAx2 DAx3 Write Precharge Command Command Bank A Bank A Precharge Termination of a Write Burst. Write data is masked. Ay0 Activate Command Bank A Read Command Bank A Ay1 Precharge Command Bank A Ay2 Activate Command Bank A Az0 Read Command Bank A Az1 Precharge Command Bank A Precharge Termination of a Read Burst. Az2 V54C365404VD(L) DQM T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 CLK tCK3 CKE High T22 CILETIV LESOM V54C365404VD(L) Rev. 0.9 September 2001 Burst Length = 4,8 or Full Page, CAS Latency = 3 22.2 Precharge Termination of a Burst (2 of 2) CS RAS CAS WE 48 BA AP RAx Addr RAx RAy RAy CAx RAz RAz CAy tRP tRP DQM Hi-Z Activate Command Bank A DAx0 Write Command Bank A Write Data is masked Ay0 Precharge Command Bank A Activate Command Bank A Precharge Termination of a Write Burst. Read Command Bank A Ay1 Precharge Command Bank A Ay2 Activate Command Bank A Precharge Termination of a Read Burst. V54C365404VD(L) I/O MOSEL VITELIC V54C365404VD(L) Complete List of Operation Commands SDRAM Function Truth Table CURRENT STATE1 CS RAS CAS WE BS Addr ACTION H L L L L L L L X H H H L L L L X H H L H H L L X H L X H L H L X X BS BS BS BS X Op- X X X X RA AP X Code NOP or Power Down NOP ILLEGAL2 ILLEGAL2 Row (&Bank) Active; Latch Row Address NOP4 Auto-Refresh or Self-Refresh5 Mode reg. Access5 H L L L L L L X H H H L L L X H L L H H L X X H L H L X X X BS BS BS BS X X X CA,AP CA,AP X AP X NOP NOP Begin Read; Latch CA; DetermineAP Begin Write; Latch CA; DetermineAP ILLEGAL2 Precharge ILLEGAL Read H L L L L L L L X H H H H L L L X H H L L H H L X H L H L H L X X X BS BS BS BS BS X X X X CA,AP CA,AP X AP X NOP (Continue Burst to End;>Row Active) NOP (Continue Burst to End;>Row Active) Burst Stop Command > Row Active Term Burst, New Read, DetermineAP3 Term Burst, Start Write, DetermineAP3 ILLEGAL2 Term Burst, Precharge ILLEGAL Write H L L L L L L L X H H H H L L L X H H L L H H L X H L H L H L X X X BS BS BS BS BS X X X X CA,AP CA,AP X AP X NOP (Continue Burst to End;>Row Active) NOP (Continue Burst to End;>Row Active) Burst Stop Command > Row Active Term Burst, Start Read, DetermineAP3 Term Burst, New Write, DetermineAP3 ILLEGAL2 Term Burst, Precharge3 ILLEGAL H L L L L L L L X H H H H L L L X H H L L H H L X H L H L H L X X X BS BS X BS BS X X X X X X X AP X NOP (Continue Burst to End;> Precharge) NOP (Continue Burst to End;> Precharge) ILLEGAL2 ILLEGAL2 ILLEGAL ILLEGAL2 ILLEGAL2 ILLEGAL Idle Row Active Read with Auto Precharge V54C365404VD(L) Rev. 0.9 September 2001 49 MOSEL VITELIC V54C365404VD(L) SDRAM FUNCTION TRUTH TABLE(continued) CURRENT STATE1 CS RAS CAS WE BS Addr ACTION Write with Auto Precharge H L L L L L L L X H H H H L L L X H H L L H H L X H L H L H L X X X BS BS X BS BS X X X X X X X AP X NOP (Continue Burst to End;> Precharge) NOP (Continue Burst to End;> Precharge) ILLEGAL2 ILLEGAL2 ILLEGAL ILLEGAL2 ILLEGAL2 ILLEGAL Precharging H L L L L L L X H H H L L L X H H L H H L X H L X H L X X X BS BS BS BS X X X X X X AP X NOP;> Idle after tRP NOP;> Idle after tRP ILLEGAL2 ILLEGAL2 ILLEGAL2 NOP4 ILLEGAL Row Activating H L L L L L L X H H H L L L X H H L H H L X H L X H L X X X BS BS BS BS X X X X X X AP X NOP;> Row Active after tRCD NOP;> Row Active after tRCD ILLEGAL2 ILLEGAL2 ILLEGAL2 ILLEGAL2 ILLEGAL Write Recovering H L L L L L L X H H H L L L X H H L H H L X H L X H L X X X BS BS BS BS X X X X X X AP X NOP NOP ILLEGAL2 ILLEGAL2 ILLEGAL2 ILLEGAL2 ILLEGAL Refreshing H L L L L X H H L L X H L H L X X X X X X X X X X X X X X X NOP;> Idle after tRC NOP;> Idle after tRC ILLEGAL ILLEGAL ILLEGAL Mode Register H L L L L X H H H L X H H L X X H L X X X X X X X X X X X X NOP NOP ILLEGAL ILLEGAL ILLEGAL Accessing V54C365404VD(L) Rev. 0.9 September 2001 50 MOSEL VITELIC V54C365404VD(L) Clock Enable (CKE) Truth Table: CKE n-1 CKE n CS RAS CAS WE Addr Self-Refresh6 H L L L L L L X H H H H H L X H L L L L X X X H H H L X X X H H L X X X X H L X X X X X X X X X X INVALID EXIT Self-Refresh, Idle after tRC EXIT Self-Refresh, Idle after tRC ILLEGAL ILLEGAL ILLEGAL NOP (Maintain Self-Refresh) Power-Down H L L L L L L X H H H H H L X H L L L L X X X H H H L X X X H H L X X X X H L X X X X X X X X X X INVALID EXIT Power-Down, > Idle. EXIT Power-Down, > Idle. ILLEGAL ILLEGAL ILLEGAL NOP (Maintain Low-Power Mode) All. Banks Idle7 H H H H H H H H L H L L L L L L L L X H L L L L L L X X X H H H L L L X X X H H L H L L X X X H L X X H L X X X X X X X X X X Refer to the function truth table Enter Power- Down Enter Power- Down ILLEGAL ILLEGAL ILLEGAL Enter Self-Refresh ILLEGAL NOP Any State other than listed above H H L L H L H L X X X X X X X X X X X X X X X X X X X X Refer to the function truth table Begin Clock Suspend next cycle8 Exit Clock Suspend next cycle8. Maintain Clock Suspend. STATE(n) ACTION Abbreviations: RA = Row Address CA = Column Address BS = Bank Address AP = Auto Precharge Notes for SDRAM function truth table: 1. 2. 3. 4. 5. 6. Current State is state of the bank determined by BS. All entries assume that CKE was active (HIGH) during the preceding clock cycle. Illegal to bank in specified state; Function may be legal in the bank indicated by BS, depending on the state of that bank. Must satisfy bus contention, bus turn around, and/or write recovery requirements. NOP to bank precharging or in Idle state. May precharge bank(s) indicated by BS (andAP). Illegal if any bank is not Idle. CKE Low to High transition will re-enable CLK and other inputs asynchronously. A minimum setup time must be satisfied before any command other than EXIT. 7. Power-Down and Self-Refresh can be entered only from the All Banks Idle State. 8. Must be legal command as defined in the SDRAM function truth table. V54C365404VD(L) Rev. 0.9 September 2001 51 MOSEL VITELIC V54C365404VD(L) Package Diagram 54-Pin Plastic TSOP-II (400 mil) 0.047 [1.20] MAX 0.400 ±0.005 [10.16 ±0.13] 0.04 ±0.002 [1 ±0.05] 0°–5° .004 [0.1] 0.031 [0.80] +0.002 0.016 -0.004 +0.05 0.40 -0.10 0.006 [0.15] MAX 0.463 ± 0.008 [11.76 ± 0.20] .008 [0.2] M 54x 54 28 Index Marking 27 1 1 0.881 -0.01 [22.38 -0.25] 1 Does not include plastic or metal protrusion of 0.15 max. per side V54C365404VD(L) Rev. 0.9 September 2001 +0.004 0.006 -0.002 +0.01 0.15 -0.05 52 Unit in inches [mm] 0.024 ± 0.008 [0.60 ± .020] MOSEL VITELIC V54C365404VD(L) Notes V54C365404VD(L) Rev. 0.9 September 2001 53 MOSEL VITELIC WORLDWIDE OFFICES V54C365404VD(L) U.S.A. TAIWAN SINGAPORE UK & IRELAND 3910 NORTH FIRST STREET SAN JOSE, CA 95134 PHONE: 408-433-6000 FAX: 408-433-0952 7F, NO. 102 MIN-CHUAN E. ROAD, SEC. 3 TAIPEI PHONE: 886-2-2545-1213 FAX: 886-2-2545-1209 10 ANSON ROAD #23-13 INTERNATIONAL PLAZA SINGAPORE 079903 PHONE: 65-3231801 FAX: 65-3237013 NO 19 LI HSIN ROAD SCIENCE BASED IND. PARK HSIN CHU, TAIWAN, R.O.C. PHONE: 886-3-579-5888 FAX: 886-3-566-5888 JAPAN SUITE 50, GROVEWOOD BUSINESS CENTRE STRATHCLYDE BUSINESS PARK BELLSHILL, LANARKSHIRE, SCOTLAND, ML4 3NQ PHONE: 44-1698-748515 FAX: 44-1698-748516 ONZE 1852 BUILDING 6F 2-14-6 SHINTOMI, CHUO-KU TOKYO 104-0041 PHONE: 03-3537-1400 FAX: 03-3537-1402 GERMANY (CONTINENTAL EUROPE & ISRAEL) BENZSTRASSE 32 71083 HERRENBERG GERMANY PHONE: +49 7032 2796-0 FAX: +49 7032 2796 22 U.S. SALES OFFICES NORTHWESTERN SOUTHWESTERN 3910 NORTH FIRST STREET SAN JOSE, CA 95134 PHONE: 408-433-6000 FAX: 408-433-0952 302 N. EL CAMINO REAL #200 SAN CLEMENTE, CA 92672 PHONE: 949-361-7873 FAX: 949-361-7807 © Copyright , MOSEL VITELIC Inc. The information in this document is subject to change without notice. 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