IS41C16128-35K Integrated Silicon Solution, IS41C16128-35K Datasheet

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IS41C16128-35K

Manufacturer Part Number
IS41C16128-35K
Description
128K x 16(2-MBIT) dynamic RAM with edo fast page mode
Manufacturer
Integrated Silicon Solution
Datasheet
IS41C16128
FEATURES
• Extended Data-Out (EDO) Page Mode
• TTL compatible inputs and outputs
• Refresh Interval: 512 cycles/8 ms
• Refresh Mode :
• JEDEC standard pinout
• Single +5V
• Byte Write and Byte Read operation via two
• Available in 40-pin SOJ and TSOP (Type II)
• Industrial temperature available
FUNCTIONAL BLOCK DIAGRAM
This document contains PRELIMINARY data. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We
assume no responsibility for any errors which may appear in this publication. © Copyright 1998, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc.
PRELIMINARY
08/20/98
IS41C16128
128K x 16 (2-MBIT) DYNAMIC RAM
WITH EDO PAGE MODE
access cycle
(CBR), and Hidden
LCAS
UCAS
A0-A8
RAS
OE
WE
DR002-1D
10% power supply
RAS
GENERATOR
GENERATOR
-Only,
COUNTER
ADDRESS
REFRESH
BUFFERS
CLOCK
CLOCK
CAS
RAS
CAS
-before-
CAS
RAS
CAS
CONTROL
LOGICS
WE
COLUMN DECODERS
SENSE AMPLIFIERS
DESCRIPTION
The
CMOS Dynamic Random Access Memory. The IS41C16128
offers an accelerated cycle access called EDO Page Mode.
EDO Page Mode allows 256 random accesses within a
single row with access cycle time as short as 12 ns per 16-
bit word. The Byte Write control, of upper and lower byte,
makes the IS41C16128 ideal for use in 16-, 32-bit wide data
bus systems.
These features make the IS41C16128 ideally suited for
high band-width graphics, digital signal processing,
high-performance computing systems, and peripheral
applications.
The IS41C16128 is packaged in a 40-pin 400-mil SOJ and
TSOP (Type II).
MEMORY ARRAY
DATA I/O BUS
131,072 x 16
ISSI
IS41C16128 is a 131,072 x 16-bit high-performance
WE
CONTROL
LOGIC
OE
AUGUST 1998
ISSI
I/O0-I/O15
ISSI
®
®
1

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IS41C16128-35K Summary of contents

Page 1

... RAS bit word. The Byte Write control, of upper and lower byte, -before- makes the IS41C16128 ideal for use in 16-, 32-bit wide data bus systems. These features make the IS41C16128 ideally suited for high band-width graphics, digital signal processing, ...

Page 2

... IS41C16128 KEY TIMING PARAMETERS Parameter RAS Max. Access Time (t ) RAC CAS Max. Access Time (t ) CAC Max. Column Address Access Time (t Min. EDO Page Mode Cycle Time (t PC Min. Read/Write Cycle Time ( PIN CONFIGURATIONS 40-Pin TSOP (Type II) VCC 1 40 GND I/ ...

Page 3

... IS41C16128 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 (1) 1st Cycle: ...

Page 4

... IS41C16128 Functional Description The IS41C16128 is a CMOS DRAM optimized for high- speed bandwidth, low power applications. During READ or WRITE cycles, each bit is uniquely addressed through the 17 address bits. The row address is latched by the RAS Row Address Strobe ( ). The column address is latched by the Column Address Strobe ( ...

Page 5

... IS41C16128 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 Operation Temperature A T Storage Temperature STG Note: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied ...

Page 6

... IS41C16128 ELECTRICAL CHARACTERISTICS 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 Average Power Supply Current I Operating Current: ...

Page 7

... IS41C16128 (1,2,3,4,5,6) AC CHARACTERISTICS Symbol Parameter t Random READ or WRITE Cycle Time RC RAS ( Access Time from RAC CAS t Access Time from (6, 8, 15) CAC t Access Time from Column-Address AA RAS t Pulse Width RAS RAS t Precharge Time RP CAS (26) t Pulse Width CAS CAS (9, 25) t Precharge Time ...

Page 8

... IS41C16128 AC CHARACTERISTICS (Continued) Symbol Parameter t Column-Address Setup Time to ACH Precharge during WRITE Cycle Hold Time from during OEH (18) READ-MODIFY-WRITE cycle t Data-In Setup Time (15, 22 Data-In Hold Time (15, 22 READ-MODIFY-WRITE Cycle Time RWC RAS Delay Time during RWD ...

Page 9

... IS41C16128 Notes initial pause of 200 s is required after power-up followed by eight RAS operation is assured. The eight 2. V (MIN) and V (MAX) are reference levels for measuring timing of input signals. Transition times, are measured between (or between V and V ) and assume for all inputs. ...

Page 10

... IS41C16128 READ CYCLE RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O OE Note referenced from rising edge of OFF RAS t CSH t t CAS RCD RAD RAL t t RAH ASC Column t RCS RAC t CAC t CLZ Open t OE RAS CAS or , whichever occurs last ...

Page 11

... IS41C16128 OE EARLY WRITE CYCLE ( = DON'T CARE) RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O Integrated Silicon Solution, Inc. PRELIMINARY DR002-1D 08/20/ RAS t CSH t RSH CAS CLCH RCD RAD RAL RAH ASC CAH t ACH Column t CWL t RWL t WCR t t WCS ...

Page 12

... IS41C16128 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 RCD CAS RAD RAH CAH ASC Column t RWD t t RCS CWD t AWD RAC t CAC t CLZ Open Valid D ...

Page 13

... IS41C16128 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 PC measurements must meet the t specifications. PC Integrated Silicon Solution, Inc. PRELIMINARY DR002-1D 08/20/98 t RASP t CSH t ( CAS, CAS, RCD ...

Page 14

... IS41C16128 EDO-PAGE-MODE EARLY-WRITE CYCLE RAS t CRP UCAS/LCAS t RAD t ASR ADDRESS Row t RAH WE I RASP t CSH RCD CAS, CP CAS CLCH CLCH ACH ACH ASC CAH ASC Column Column t t CWL CWL t t WCS WCS ...

Page 15

... IS41C16128 EDO-PAGE-MODE READ-WRITE CYCLE RAS t CSH t CRP t RCD UCAS/LCAS ASR RAD t t ASC RAH ADDRESS Row t RWD t RCS WE t RAC t CAC t CLZ Open I/O OE Note can be measured from falling edge of PC measurements must meet the t specifications. PC Integrated Silicon Solution, Inc. ...

Page 16

... IS41C16128 EDO-PAGE-MODE READ-EARLY-WRITE CYCLE RAS t CSH t t CRP RCD UCAS/LCAS ASR RAD t t ASC RAH ADDRESS Row t RCS WE t RAC t CAC Open I (Psuedo READ-MODIFY WRITE) t RASP CAS CP CAS CAH ASC CAH Column (A) Column (B) t RCH ...

Page 17

... IS41C16128 AC WAVEFORMS WE READ CYCLE (With -Controlled Disable) RAS t CRP UCAS/LCAS t ASR ADDRESS Row WE I/O OE RAS RAS RAS RAS RAS -ONLY REFRESH CYCLE ( RAS t CRP UCAS/LCAS t ASR ADDRESS I/O Integrated Silicon Solution, Inc. PRELIMINARY DR002-1D 08/20/98 t CSH t t RCD CAS RAD t t RAH ...

Page 18

... IS41C16128 CBR CBR CBR CBR CBR REFRESH CYCLE (Addresses; t RAS t RPC t CP UCAS/LCAS I/O HIDDEN REFRESH CYCLE ( 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 referenced from rising edge of OFF 18 WE ...

Page 19

... IS41C16128 400-MIL PLASTIC SOJ Package Code 400-mil Plastic SOJ (K) Inches Millimeters Symbol Min Max Min Ref. Std — 0.144 — A1 0.025 — 0.66 A2 0.082 — 2.08 B 0.015 0.019 0.38 b 0.026 0.032 0.66 C 0.007 0.013 0.18 D 1.020 1.030 25.91 26.16 E 0.430 0.450 10.92 11.43 E1 0.395 0.405 10.03 10.28 E2 0.346 0.386 8 ...

Page 20

... IS41C16128 PLASTIC TSOP Package Code: T (Type Plastic TSOP (T - Type II) Inches Millimeters Symbol Min Max Ref. Std. N 40/44 A 0.039 0.047 A1 0.002 0.008 B 0.012 0.016 C 0.0047 0.0083 D 0.721 0.729 18.313 18.517 E 0.462 0.470 11.735 11.938 e 0.0315 BSC H 0.396 0.404 10.058 10.262 L 0 ...

Page 21

... TSOP (Type 2) IS41C16128-50K 400-mil SOJ IS41C16128-50T 400-mil TSOP (Type 2) IS41C16128-60K 400-mil SOJ IS41C16128-60T 400-mil TSOP (Type 2) Order Part No. Package IS41C16128-35KI 400-mil SOJ IS41C16128-35TI 400-mil TSOP (Type 2) IS41C16128-40KI 400-mil SOJ IS41C16128-40TI 400-mil TSOP (Type 2) IS41C16128-45KI 400-mil SOJ IS41C16128-45TI 400-mil TSOP (Type 2) ...

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