IS41LV16256-35T Integrated Silicon Solution, IS41LV16256-35T Datasheet
IS41LV16256-35T
Specifications of IS41LV16256-35T
Available stocks
Related parts for IS41LV16256-35T
IS41LV16256-35T Summary of contents
Page 1
... The Byte Write control, of upper and lower byte, makes the IS41C16256 and IS41LV16256 ideal for use in 16 and 32-bit wide data bus systems. These features make the IS41C16256 and IS41LV1626 ideally suited for high band-width graphics, digital signal processing, high-performance computing systems, and peripheral applications ...
Page 2
... IS41C16256 IS41LV16256 FUNCTIONAL BLOCK DIAGRAM OE WE CAS LCAS CLOCK UCAS GENERATOR RAS RAS CLOCK GENERATOR REFRESH COUNTER ADDRESS BUFFERS A0- CONTROL CAS WE LOGICS DATA I/O BUS COLUMN DECODERS SENSE AMPLIFIERS MEMORY ARRAY 262,144 x 16 Integrated Silicon Solution, Inc. — 1-800-379-4774 ISSI OE CONTROL ...
Page 3
... IS41C16256 IS41LV16256 TRUTH TABLE Function Standby Read: Word Read: Lower Byte Read: Upper Byte Write: Word (Early Write) Write: Lower Byte (Early Write) Write: Upper Byte (Early Write) Read-Write (1,2) (2) EDO Page-Mode Read 1st Cycle: 2nd Cycle: Any Cycle: EDO Page-Mode Write ...
Page 4
... Column Address Strobe (CAS). RAS is used to latch the first nine bits and CAS is used the latter nine bits. The IS41C16256 and IS41LV16256 has two CAS con- trols, LCAS and UCAS. The LCAS and UCAS inputs internally generates a CAS signal functioning in an iden- tical manner to the single CAS input on the other 256K x 16 DRAMs ...
Page 5
... IS41C16256 IS41LV16256 ABSOLUTE MAXIMUM RATINGS Symbol Parameters V Voltage on Any Pin Relative to GND T V Supply Voltage CC I Output Current OUT P Power Dissipation D T Commercial Operation Temperature A Extended Temperature Industrail Temperature T Storage Temperature STG Note: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device ...
Page 6
... IS41C16256 IS41LV16256 ELECTRICAL CHARACTERISTICS (Recommended Operation Conditions unless otherwise noted.) Symbol Parameter I Input Leakage Current IL I Output Leakage Current IO V Output High Voltage Level OH V Output Low Voltage Level OL I Stand-by Current: TTL Stand-by Current: CMOS Operating Current ...
Page 7
... IS41C16256 IS41LV16256 AC CHARACTERISTICS (1,2,3,4,5,6) (Recommended Operating Conditions unless otherwise noted.) Symbol Parameter t Random READ or WRITE Cycle Time RC Access Time from RAS t RAC Access Time from CAS t CAC t Access Time from Column-Address AA RAS Pulse Width t RAS RAS Precharge Time t RP CAS Pulse Width ...
Page 8
... IS41C16256 IS41LV16256 AC CHARACTERISTICS (Continued) (Recommended Operating Conditions unless otherwise noted.) Symbol Parameter t Write Command Pulse Width WP WE Pulse Widths to Disable Outputs t WPZ Write Command to RAS Lead Time t RWL Write Command to CAS Lead Time t CWL t Write Command Setup Time WCS Data-in Hold Time (referenced to RAS) ...
Page 9
... IS41C16256 IS41LV16256 Notes initial pause of 200 µs is required after power-up followed by eight RAS refresh cycle (RAS-Only or CBR) before proper device operation is assured. The eight RAS cycles wake-up should be repeated any time the (MIN) and V (MAX) are reference levels for measuring timing of input signals. Transition times, are measured between V ...
Page 10
... IS41C16256 IS41LV16256 READ CYCLE RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O OE Note: is referenced from rising edge of RAS or CAS, whichever occurs last OFF RAS t CSH t RSH CAS CLCH RCD RAD RAL RAH ASC CAH Column ...
Page 11
... IS41C16256 IS41LV16256 EARLY WRITE CYCLE (OE = DON'T CARE) RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. J 06/29/ RAS t CSH t RSH RCD CAS CLCH RAD RAL RAH CAH ASC t ACH Column t CWL t RWL ...
Page 12
... IS41C16256 IS41LV16256 READ WRITE CYCLE (LATE WRITE and READ-MODIFY-WRITE Cycles) RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I RWC t RAS t CSH t t CAS RCD RAD RAH ASC CAH Column t RWD t t RCS CWD t AWD RAC t CAC t CLZ Open ...
Page 13
... IS41C16256 IS41LV16256 EDO-PAGE-MODE READ CYCLE RAS t CRP UCAS/LCAS t RAD t ASR ADDRESS Row t RAH WE Open I/O OE Note: can be measured from falling edge of CAS to falling edge of CAS, or from rising edge of CAS to rising edge of CAS. Both measurements must meet the t specifications. PC Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev ...
Page 14
... IS41C16256 IS41LV16256 EDO-PAGE-MODE EARLY-WRITE CYCLE RAS t CRP UCAS/LCAS t RAD t ASR ADDRESS Row t RAH WE I RASP t t CSH RCD CAS, CP CAS CLCH CLCH ACH ACH ASC CAH ASC Column Column t t CWL CWL t t WCS ...
Page 15
... IS41C16256 IS41LV16256 EDO-PAGE-MODE READ-WRITE CYCLE (LATE WRITE and READ-MODIFY WRITE Cycles) RAS t t CRP RCD UCAS/LCAS ASR RAD t t ASC RAH ADDRESS Row t RWD t RCS WE t RAC t t Open I/O OE Note: can be measured from falling edge of CAS to falling edge of CAS, or from rising edge of CAS to rising edge of CAS. Both 1 ...
Page 16
... IS41C16256 IS41LV16256 EDO-PAGE-MODE READ-EARLY-WRITE CYCLE (Psuedo READ-MODIFY WRITE) RAS t t CRP RCD UCAS/LCAS ASR RAD t t ASC RAH ADDRESS Row t RCS WE t RAC Open I RASP t CSH CAS CP CAS CAH ASC CAH Column (A) Column (B) t RCH ...
Page 17
... IS41C16256 IS41LV16256 AC WAVEFORMS READ CYCLE (With WE-Controlled Disable) RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O OE RAS-ONLY REFRESH CYCLE (OE DON'T CARE) RAS t CRP UCAS/LCAS t ASR ADDRESS Row I/O Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. J 06/29/00 t CSH t t RCD CAS RAD ...
Page 18
... IS41C16256 IS41LV16256 CBR REFRESH CYCLE (Addresses; WE DON'T CARE RAS t RPC t CP UCAS/LCAS I/O HIDDEN REFRESH CYCLE (WE = HIGH LOW) RAS t CRP UCAS/LCAS t ASR ADDRESS Row I/O OE Notes Hidden Refresh may also be performed after a Write Cycle. In this case LOW and OE = HIGH. is referenced from rising edge of RAS or CAS, whichever occurs last. ...
Page 19
... ORDERING INFORMATION : 3.3V Commercial Range: 0⋅ ⋅ ⋅ ⋅ ⋅ 70⋅ ⋅ ⋅ ⋅ ⋅ C Speed (ns) Order Part No. Package 35 IS41LV16256-35K 400-mil SOJ IS41LV16256-35T 400-mil TSOP (Type II) 60 IS41LV16256-60K 400-mil SOJ IS41LV16256-60T 400-mil TSOP (Type II) ORDERING INFORMATION : 3.3V Industrail Range: -40⋅ ⋅ ⋅ ⋅ ⋅ 85⋅ ⋅ ⋅ ⋅ ⋅ C Speed (ns) Order Part No ...