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A3V28S40FTP Dataheets PDF



Part Number A3V28S40FTP
Manufacturers Zentel
Logo Zentel
Description 128M Single Data Rate Synchronous DRAM
Datasheet A3V28S40FTP DatasheetA3V28S40FTP Datasheet (PDF)

A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM 128Mb Synchronous DRAM Specification A3V28S30FTP A3V28S40FTP Zentel Electronics Corp. Revision 1.0 Apr., 2010 A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM General Description A3V28S30FTP is organized as 4-bank x 4,194,304-word x 8-bit Synchronous DRAM with LVTTL interface and A3V28S40FTP is organized as 4-bank x 2,097,152-word x 16-bit. All inputs and outputs are referenced to the rising edge of CLK. A3V28S30FTP.

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A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM 128Mb Synchronous DRAM Specification A3V28S30FTP A3V28S40FTP Zentel Electronics Corp. Revision 1.0 Apr., 2010 A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM General Description A3V28S30FTP is organized as 4-bank x 4,194,304-word x 8-bit Synchronous DRAM with LVTTL interface and A3V28S40FTP is organized as 4-bank x 2,097,152-word x 16-bit. All inputs and outputs are referenced to the rising edge of CLK. A3V28S30FTP and A3V28S40FTP achieve very high speed data rates up to 166MHz, and are suitable for main memories or graphic memories in computer systems. Features - Single 3.3V ±0.3V power supply - Maximum clock frequency : - 6:166MHz<3-3-3>/-7:143MHz<3-3-3>/-75:133MHz<3-3-3> - Fully synchronous operation referenced to clock rising edge - 4-bank operation controlled by BA0, BA1 (Bank Address) - /CAS latency- 2/3 (programmable) - Burst length- 1/2/4/8/FP (programmable) - Burst type- Sequential and interleave burst (programmable) - Byte Control- DQM (A3V28S30FTP), DQML and DQMU (A3V28S40FTP) - Random column access - Auto precharge / All bank precharge controlled by A10 - Support concurrent auto-precharge - Auto and self refresh - 4096 refresh cycles /64ms - LVTTL Interface - Package 400-mil, 54-pin Thin Small Outline (TSOP II) with 0.8mm lead pitch Pb-free package is available Ordering Information 54Pin TSOPII (400mil x 875mil) Part No. Max. Frequency A3V28S30FTP-G6 166MHz (CL=3) A3V28S30FTP-G7 143MHz (CL=3) A3V28S30FTP-G75 133MHz (CL=3) A3V28S40FTP-G6 166MHz (CL=3) A3V28S40FTP-G7 143MHz (CL=3) A3V28S40FTP-G75 133MHz (CL=3) Supply Voltage 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V Zentel Electronics reserves the right to change products or specification without notice. Revision 1.0 Page 1 / 39 Apr., 2010 A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM PIN CONFIGURATION (TOP VIEW) x8 x16 Vdd DQ0 VddQ NC DQ1 VssQ NC DQ2 VddQ NC DQ3 VssQ NC Vdd NC /WE /CAS /RAS /CS BA0 BA1 A10(AP) A0 A1 A2 A3 Vdd Vdd DQ0 VddQ DQ1 DQ2 VssQ DQ3 DQ4 VddQ DQ5 DQ6 VssQ DQ7 Vdd DQML /WE /CAS /RAS /CS BA0 BA1 A10(AP) A0 A1 A2 A3 Vdd PIN CONFIGURATION (TOP VIEW) 1 54 2 53 3 52 4 51 5 50 6 49 7 48 8 47 9 46 10 45 11 44 12 43 13 42 14 41 15 40 16 39 17 38 18 37 19 36 20 35 21 34 22 33 23 32 24 31 25 30 26 29 27 28 Vss DQ15 VssQ DQ14 DQ13 VddQ DQ12 DQ11 VssQ DQ10 DQ9 VddQ DQ8 Vss NC DQMU CLK CKE NC A11 A9 A8 A7 A6 A5 A4 Vss Vss DQ7 VssQ NC DQ6 VddQ NC DQ5 VssQ NC DQ4 VddQ NC Vss NC DQM CLK CKE NC A11 A9 A8 A7 A6 A5 A4 Vss CLK CKE /CS /RAS /CAS /WE DQ0-7 DQ0-15 : Master Clock : Clock Enable : Chip Select : Row Address Strobe : Column Address Strobe : Write Enable : Data I/O (A3V28S30FTP) : Data I/O (A3V28S40FTP) DQM : Output Disable / Write Mask (A3V28S30FTP) DQMU,L : Output Disable / Write Mask (A3V28S40FTP) A0-11 : Address Input BA0,1 : Bank Address Vdd : Power Supply VddQ : Power Supply for Output Vss : Ground VssQ : Ground for Output Revision 1.0 Page 2 / 39 Apr., 2010 BLOCK DIAGRAM A3V28S30FTP A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM DQ 0 - 7 I/O Buffer Memory Array Bank #0 Memory Array Bank #1 Memory Array Bank #2 Memory Array Bank #3 Mode Register Control Circuitry Address Buffer A0-11 BA0,1 Clock Buffer Control Signal Buffer /CS /RAS /CAS /WE DQM CLK CKE Note:This figure shows the A3V28S30FTP The A3V28S40FTP configuration is 4096x512x16 of cell array and DQ0-15 Type Designation Code A 3 V 28 S40F TP-G6 Speed Grade G: Green 75: 133MHz@CL=3 7: 143MHz@CL=3 6: 166MHz@CL=3 Package Type TP:TSOP (II) Process Generation Function Reserved for Future Use Organization 2n 3:x8, 4:x16 SDR Synchronous DRAM Density 28:128M bits Interface V:LVTTL Memory Style (DRAM) Zentel DRAM Revision 1.0 Page 3 / 39 Apr., 2010 A3V28S30FTP A3V28S40FTP 128M Single Data Rate Synchronous DRAM Pin Descriptions SYMBOL CLK CKE TYPE Input Input DESCRIPTION Clock: CLK is driven by the system clock. All SDRAM input signals are sampled on the positive edge of CLK. CLK also increments the internal burst counter and controls the output registers. Clock Enable: CKE activates (HIGH) and deactivates (LOW) the CLK signal. Deactivating the clock provides PRECHARGE POWER-DOWN and SELF REFRESH operation (all banks idle), ACTIVE POWER-DOWN (row active in any bank), or CLOCK SUSPEND operation (burst / access in progress). CKE is synchronous except after the device enters self refresh mode, where CKE becomes asynchronous until after exiting the same mode. The input buffers, including CLK, are disabled during self refresh mode, providing low standby power. CKE may be tied HIGH. Chip Select: /CS enables (registered LOW) and disables (registered HIGH) the command /CS Input decoder. All commands are masked when /CS is registered HIGH. /CS provides for external bank selection on systems with multiple banks. /CS is considered part of the command code. /CAS, /RAS, /WE DQM, DQML, DQMU, Input Input Command Inputs: /CAS, /RAS, and /WE .


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