MILITARY COMMERCIAL TEMPERATURE RANGE CMOS StaticRAM 4-BIT) CACHE

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

MILITARY COMMERCIAL TEMPERATURE RANGE CMOS StaticRAM 4-BIT) CACHE

Datasheet Thumbnail

Top Searches for this datasheet

IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
CMOS StaticRAM 4-BIT) CACHE-TAG
IDT6178S
FEATURES:
High-speed Address MATCH Valid time Military: 12/15/20/25ns Commercial: 10/12/15/20/25ns (max.) High-speed Address Access time Military: 12/15/20/25ns Commercial: 10/12/15/20/25ns (max.) Low-power consumption IDT6178S Active: 300mW (typ.) Produced with advanced CMOS high-performance technology Input output TTL-compatible Standard 22-pin Plastic Ceramic DIP, 24-pin Military product 100% compliant MIL-STD-883, Class
DESCRIPTION:
IDT6178 high-speed cache address comparator sub-system consisting 16,384-bit StaticRAM organized Cycle Time Address MATCH Valid equal. IDT6178 features onboard 4-bit comparator that compares contents current input data. result active HIGH MATCH pin. MATCH pins several IDT6178s handed together provide enabling acknowledging signals data cache processor. IDT6178 fabricated using IDT's high-performance, high-reliability CMOS technology. Address MATCH Data MATCH times fast 10ns. inputs outputs IDT6178 TTL-compatible device operates from single supply. IDT6178 packaged either 22-pin, 300-mil Plastic Ceramic package 24-pin SOJ. Military grade product manufactured compliance with latest revision MILSTD-883, Class making ideally suited military temperature applications demanding highest level performance reliability.
FUNCTIONAL BLOCK DIAGRAM
ADDRESS DECODE 16,384-BIT MEMORY ARRAY
I/O0 I/O3
CONTROL
CONTROL
CLEAR MEMORY ARRAY
COMPARATOR
MATCH
logo registered trademark
2953
MILITARY COMMERCIAL TEMPERATURE RANGES
©1994
1994
DSC-1059/2
11.1 11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
CONFIGURATIONS
VIEW
VIEW
S024-4
P22-1 D22-1
I/O3 I/O2 I/O1 I/O0 MATCH
2953
I/O3 I/O2 I/O1 I/O0 MATCH
2953
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM Rating Terminal Voltage with respect Operating Temperature Temperature Under Bias Storage Temperature Power Dissipation Output Current Value -0.5 +7.0 +125 +135 +150 Unit
DESCRIPTIONS
A0-A11 I/O0-I/O3 MATCH Address Inputs Data Input/Output Match Write Enable Output Enable Clear Power Ground
2953
TBIAS TSTG IOUT
2953 NOTE: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliabilty.
RECOMMENDED OPERATING TEMPERATURE SUPPLY VOLTAGE
Grade Commercial Military Ambient Temperature +70°C -55°C +125°C 5.0V 5.0V
2953
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Supply Voltage Supply Voltage Input High Voltage Input Voltage Min. 2.2(2) -0.5
Typ.
Max.
Unit
2953
TRUTH TABLES(1)
NOTES: -3.0V pulse width less than 20ns, once cycle. 2.5V clear pin.
MATCH Valid(2) Invalid Invalid Invalid
Mode Match Cycle Write Cycle Read Cycle Clear Cycle
2953
CAPACITANCE 25°C, 1MHz)
Symbol CI/O Parameter Input Capacitance Capacitance Condition VOUT Units
NOTE: VIH, VIL, Don't care. Valid Match VOH, Valid Non-Match VOL.
NOTE: 2953 This parameter determined device characterization, production tested.
11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
6178S Symbol |ILI| |ILO| Parameter Input Leakage Current Output Leakage Current Output Voltage Test Condition 5.5V, Min. Max. Unit
2953
VIH, VOUT
(I/O0 I/O3) 10mA (I/O0 I/O3) 16mA (Match) 20mA (Match)
Output High Voltage
-4mA (I/O0 I/O3) -8mA (Match)
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
Symbol ICC1 ICC2 Parameter Operating Power Supply Current Outputs Open, Max., 0(2) COM'L. MIL. 6178S10 Max. 6178S12(1) Max. 6178S15(1) Max. 6178S20/25 Max.
Unit
2953
Dynamic Operating Current COM'L. Outputs Open, Max., fMAX(2) MIL.
NOTES: Military values preliminary only. fMAX 1/tRC, only address inputs cycling fMAX. means address inputs change.
TEST CONDITIONS
Input Pulse Levels Input Rise/Fall Times Input Timing Reference Levels Output Reference Levels Test Load Test Load Match Cycle 3.0V 1.5V 1.5V Figures Figure
2953
MATCHOUT 30pF*
2953
Figure Test Load MATCH
DATAOUT 30pF*
DATAOUT
5pF*
2953
2953
Figure Test Load
Figure Test Load
(for tOLZ, tOHZ, tWHZ, tOW) Including scope jig.
11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
CYCLE DESCRIPTION
Match Cycle: match cycle occurs when control signals (OE, CLR) HIGH. that time, data supplied pins compared with data stored specified address. totem-pole match output HIGH when there match data bits, drives there match. Write Cycle: write cycle conventional, occuring when HIGH. either HIGH LOW, since overridden state Match guaranteed, current implementation continues reflect output comparator. Match goes HIGH during write cycles since data specified address same data (being written) I/Os RAM.
6178S10(1) Symbol Match Cycle tADM tDAM tMHO tOEM tMHW tWEM tMHCLR tMHA tMHD Address Match Valid Data Input Match Valid Match Valid Hold from Parameter Min. Max.
Read Cycle: When HIGH LOW, read cycle. state Match guaranteed, current implementation continues reflect output comparator. Match goes HIGH during read cycles since data specified address same data (being read) I/Os RAM. Clear Cycle: When asserted, every cleared zero. during clear cycle, I/Os will driven. However, this data necessarily zeros, even after considerable time. Match enabled, state predicable.
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
6178S12 Min. Max. 6178S15 Min. Max. 6178S20 Min. Max. 6178S25 Min. Max. Unit
2953
HIGH Match Valid Match Valid Hold from HIGH Match Valid Match Valid Hold from
Match Valid Hold from Address Match Valid Hold from Data
NOTE: +70°C temperature range only.
TIMING WAVEFORM MATCH CYCLE(1)
ADDRESS tADM tMHA
tOEM tMHO
tWEM tMHW
tMHCLR I/O1-4 VALID READ DATAOUT VALID MATCH DATAIN tDAM MATCH
MATCH MATCH
tMHD MATCH VALID MATCH
2953
NOTE: recommended address data input pins float while MATCH active.
11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
6178S10(1) Symbol Read Cycle tOLZ
6178S12 Min. Max.
6178S15 Min. Max.
6178S20/25 Min. 20/25 Max. 20/25 Unit
2953
Parameter Read Cycle Time Address Access Time Output Enable Access Time Output Hold from Address Change Output Enable Output Low-Z Time Output Disable Output High-Z Time
Min.
Max.
tOHZ
NOTES: +70°C temperature range only. This parameter guaranteed with load (Figure device characterization, production tested.
TIMING WAVEFORM READ CYCLE 1(1)
ADDRESS
tOLZ DATAOUT
tOHZ DATAOUT VALID
2953
TIMING WAVEFORM READ CYCLE 2(1,2)
ADDRESS
DATAOUT PREVIOUS DATAOUT VALID
DATAOUT VALID
DATAOUT VALID
2953
NOTES: HIGH Read Cycle. Output enable continuously active, LOW. Transition measured ±200V from steady state.
11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
6178S10(1) Symbol Write Cycle tWHZ
6178S12 Min. Max.
6178S15 Min. Max.
6178S20/25 Min. Max. Unit
2953
Parameter Write Cycle Time Address Valid End-of-Write Address Set-up Time Write Pulse Width Write Recovery Time Data Valid End-of-Write Data Hold from Write Time Write Enable Output High-Z Output Active from End-of-Write
Min.
Max.
tOW(2)
NOTES: +70°C temperature range only. This parameter guaranteed with load (Figure device characterization, production tested.
TIMING WAVEFORM WRITE CYCLE(1,3)
ADDRESS
tWHZ DATAOUT
DATAIN
DATAIN VALID
2953
NOTES: must HIGH during address transitions. During this period, pins output state input signals must applied. HIGH. during controlled write cycle, write pulse width must greater (tWHZ tDW) allow drivers turn data placed required tDW. HIGH during controlled write cycle, this requirement does apply write pulse specified tWP. Transition measured ±200mV from steady state.
ELECTRICAL CHARACTERISTICS (VCC 5.0V 10%, Temperature Ranges)
6178S10(1) Symbol Clear Cycle tCLPW(2) tCLRC tPOCL(3) tWECL Parameter Min. Max. 6178S12 Min. Max. 6178S15 Min. Max. 6178S20/25 Min. Max. Unit
2953
Pulse Width HIGH
Power Reset
HIGH Clear HIGH
NOTES: +70°C temperature range only. Recommended duty cycle maximum. This parameter guaranteed with load (Figure device characterization, production tested.
11.1
IDT6178S CMOS StaticRAM 4-BIT) CACHE-TAG
MILITARY COMMERCIAL TEMPERATURE RANGE
TIMING WAVEFORM CLEAR CYCLE
tCLPW
tWECL tCLRC
2953
POWER RESET TIMING
tPOCL
tCLRC
tWECL
2953
ORDERING INFORMATION
6178 Device Type Power Speed Package Process/ Temperature Blank Commercial (0°C +70°C) Military (-55°C +125°C, Compliant MIL-STD-883, Class Plastic (P22-1) Small Outline, bend (SO24-4) Ceramic (D22-1) Commercial only Speed nanoseconds
2953
11.1

MILITARY COMMERCIAL TEMPERATURE RANGE CMOS StaticRAM 4-BIT) CACHE

Top Searches for this datasheet

Other recent searches