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IDT61298SA 数据表(PDF) 2 Page - Integrated Device Technology

部件名 IDT61298SA
功能描述  CMOS STATIC RAM 256K (64K x 4-BIT)
Download  7 Pages
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制造商  IDT [Integrated Device Technology]
网页  http://www.idt.com
标志 IDT - Integrated Device Technology

IDT61298SA 数据表(HTML) 2 Page - Integrated Device Technology

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7.1
2
IDT61298SA
CMOS STATIC RAM 256K (64K x 4-BIT)
COMMERCIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
Com’l.
Unit
VTERM
(2)
Terminal Voltage
–0.5 to +7.0
V
with Respect
to GND
TA
Operating
0 to +70
°C
Temperature
TBIAS
Temperature
–55 to +125
°C
Under Bias
TSTG
Storage
–55 to +125
°C
Temperature
PT
Power Dissipation
1.0
W
IOUT
DC Output
50
mA
Current
NOTES:
2971 tbl 02
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.
DESCRIPTION (Continued)
circuitry, along with matching access and cycle times, favor
the simplified system design approach.
The IDT61298SA is packaged in a 300 mil, 28-pin SOJ,
providing improved board-level packing densities.
PIN CONFIGURATION
SOJ
TOP VIEW
CAPACITANCE
(TA = +25
°C, f = 1.0MHz, SOJ Package)
Symbol
Parameter
(1)
Conditions
Max.
Unit
CIN
Input Capacitance
VIN = 3dV
5
pF
CI/O
I/O Capacitance
VOUT = 3dV
7
pF
NOTE:
2971 tbl 03
1. This parameter is determined by device characterization, but is not
production tested.
TRUTH TABLE
(1,2)
CS
CS
OE
OE
WE
WE
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
Deselected - Standby (ISB)
VHC
(3)
X
X
High-Z
Deselected - Standby (ISB1)
NOTES:
2971 tbl 01
1. H = VIH, L = VIL, x = Don't care.
2. VLC = 0.2V, VHC = VCC -0.2V.
3. Other inputs
≥VHC or ≤VLC.
2971 drw 02
5
6
7
8
9
10
11
12
1
2
3
4
24
23
22
21
20
19
18
17
SO28-5
13
14
28
27
26
25
16
15
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CS
OE
GND
VCC
A15
A14
A13
A12
A11
A10
NC
NC
I/O3
I/O2
I/O1
I/O0
WE
PIN DESCRIPTIONS
Name
Description
A0–A14
Addresses
I/O0–I/O7
Data Input/Output
CS
Chip Select
WE
Write Enable
OE
Output Enable
GND
Ground
VCC
Power
2971 tbl 04


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