IS41C16256-60K ISSI, Integrated Silicon Solution Inc, IS41C16256-60K Datasheet
IS41C16256-60K
Specifications of IS41C16256-60K
Available stocks
Related parts for IS41C16256-60K
IS41C16256-60K Summary of contents
Page 1
... Page Mode allows 512 random accesses within a single row with access cycle time as short as 10ns per 16-bit word. 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. ...
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
... The IS41C16256 and IS41LV16256 CAS function is determined by the first CAS (LCAS or UCAS) transitioning LOW and the last transitioning back HIGH. The two CAS controls give the IS41C16256 both BYTE READ and BYTE WRITE cycle capabilities. Memory Cycle A memory cycle is initiated by bring RAS LOW and it is terminated by returning both RAS and CAS HIGH ...
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 (2,3,4) Random Read/Write ...
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 t RCS RAC t CAC t CLC Open OES Integrated Silicon Solution, Inc. — 1-800-379-4774 ...
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 t WCR t t WCS WCH ...
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 Valid Integrated Silicon Solution, Inc. — 1-800-379-4774 ...
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 WCS t t WCH WCH WCR t DHR Valid Data Valid Data Integrated Silicon Solution, Inc. — ...
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 CPA t t CAC CAC t COH Valid Data (A) ...
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 RAH ...
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
... Speed (ns) Order Part No. Package 50 IS41C16256-50KI 400-mil SOJ IS41C16256-50TI 400-mil TSOP (Type II) 60 IS41C16256-60KI 400-mil SOJ IS41C16256-60TI 400-mil TSOP (Type II) Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. J 06/29/00 ORDERING INFORMATION : 3.3V Commercial Range: 0⋅ ⋅ ⋅ ⋅ ⋅ 70⋅ ⋅ ⋅ ⋅ ⋅ C Speed (ns) Order Part No ...