IDT61298SA(2007) データシートの表示（PDF） - Integrated Device Technology
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IDT61298SA Datasheet PDF : 8 Pages
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IDT61298SA
CMOS Static RAM 256K (64K x 4-Bit)
Pin Configuration
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CS
OE
GND
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8 SO28-5 21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
A15
A14
A13
A12
A11
A10
NC
NC
I/O3
I/O2
, I/O1
I/O0
WE
2971 drw 02
SOJ
Top View
Pin Descriptions
Name
A0 - A14
I/O0 - I/O7
CS
WE
OE
GND
VCC
Description
Addresses
Data Input/Output
Chip Select
Write Enable
Output Enable
Ground
Power
2971 tbl 01
Truth Table(1,2)
CS
OE
WE
Commercial Temperature Range
I/O
Function
L
L
H
DATAOUT Read Data
L
X
L
DATAIN Write Data
L
H
H
High-Z Outputs Disabled
H
X
X
High-Z Deselecte d - Standby (ISB)
VHC(3)
X
X
High-Z Deselecte d - Standby (ISB1)
NOTES:
1. H = VIH, L = VIL, x = Don't care.
2. VLC = 0.2V, VHC = VCC -0.2V.
3. Other inputs ≥VHC or ≤VLC.
2971 tbl 02
Absolute Maximum Ratings(1)
Symbol
Rating
Com'l.
Unit
VTERM(2)
Terminal Voltage
with Respect to GND
-0.5 to +7.0
V
TA
Operating Temperature
0 to +70
oC
TBIAS
Temperature Under Bias
-55 to +125
oC
TSTG
Storage Temperature
-55 to +125
oC
PT
Power Dissipation
1.0
W
IOUT
DC Output Current
50
mA
NOTES:
2971 tbl 03
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
reliability.
2. VTERM must not exceed VCC + 0.5V.
Capacitance
(TA = +25°C, f = 1.0MHz, SOJ Package)
Symbol
Parameter(1)
Conditions Max. Unit
CIN
Input Capacitance
VIN = 3dV
5
pF
COUT
Output Capacitance
VOUT = 3dV
7
pF
NOTE:
2971 tbl 04
1. This parameter is determined by device characterization, but is not production
tested.
2
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