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IDT6178S25Y Datasheet(PDF) 2 Page - Integrated Device Technology

Part # IDT6178S25Y
Description  CMOS StaticRAM 16K (4K x 4-BIT) CACHE-TAG RAM
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT6178S25Y Datasheet(HTML) 2 Page - Integrated Device Technology

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11.1
2
IDT6178S
CMOS StaticRAM 16K (4K x 4-BIT) CACHE-TAG RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGE
PIN CONFIGURATIONS
TRUTH TABLES
(1)
WE
WE
OE
OE
CLR
CLR
MATCH
Mode
H
H
H
Valid
(2)
Match Cycle
L
X
H
Invalid
Write Cycle
H
L
H
Invalid
Read Cycle
X
X
L
Invalid
Clear Cycle
NOTE:
2953 tbl 03
1. H = VIH, L = VIL, X = Don’t care.
2. Valid Match = VOH, Valid Non-Match = VOL.
CAPACITANCE (TA = 25
°C, f = 1MHz)
Symbol
Parameter
Condition
Max
Units
CIN
Input Capacitance
VIN = 0V
8
pF
CI/O
I/O Capacitance
VOUT = 0V
8
pF
NOTE:
2953 tbl 06
1. This parameter is determined by device characterization, but is not
production tested.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Value
Unit
VTERM
Terminal Voltage with respect
–0.5 to +7.0
V
to GND
TA
Operating Temperature
–55 to +125
°C
TBIAS
Temperature Under Bias
–65 to +135
°C
TSTG
Storage Temperature
–65 to +150
°C
PT
Power Dissipation
1.0
W
IOUT
DC Output Current
50
mA
NOTE:
1. Stresses 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. Exposure to absolute maximum rating conditions for extended
periods may affect reliabilty.
2953 tbl 04
RECOMMENDED DC
OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
Supply Voltage
4.5
5.0
5.5
V
GND
Supply Voltage
0
0
0
V
VIH
Input High Voltage
2.2(2)
6.0
V
VIL
Input Low Voltage
–0.5(1)
0.8
V
NOTES:
2953 tbl 05
1. VIL = –3.0V for pulse width less than 20ns, once per cycle.
2. VIH = 2.5V for clear pin.
RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE
Grade
Ambient Temperature
GND
VCC
Commercial
0
°C to +70°C
0V
5.0V
± 10%
Military
–55
°C to +125°C
0V
5.0V
± 10%
2953 tbl 02
PIN DESCRIPTIONS
A0–A11
Address Inputs
I/O0–I/O3
Data Input/Output
MATCH
Match
WE
Write Enable
OE
Output Enable
CLR
Clear
VCC
Power
GND
Ground
2953 tbl 01
A0
A1
A2
A3
A4
A5
A6
A7
OE
WE
GND
VCC
A11
A10
A9
A8
CLR
I/O3
MATCH
I/O2
I/O1
I/O0
1
22
2
21
3
20
4
19
5
18
617
7
16
8
15
9
14
10
13
11
12
P22-1
&
D22-1
2953 drw 02
SOJ
TOP VIEW
NC
A5
A0
A1
A2
A3
A4
A6
A7
OE
WE
GND
VCC
A11
A10
A9
A8
NC
I/O3
MATCH
I/O2
I/O1
I/O0
124
223
322
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
S024-4
CLR
12
13
2953 drw 03
DIP
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