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IDT71256SA70 Datasheet(PDF) 2 Page - Integrated Device Technology

Part No. IDT71256SA70
Description  CMOS STATIC RAM 256K (32K x 8-BIT)
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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IDT71256SA70
CMOS STATIC RAM 256K (32K x 8-BIT)
COMMERCIAL TEMPERATURE RANGES
2
PIN CONFIGURATION
CAPACITANCE
(TA = +25
°C, f = 1.0MHz, SOJ package)
Symbol
Parameter
(1)
Conditions
Max.
Unit
CIN
Input Capacitance
VIN = 3dV
11
pF
CI/O
I/O Capacitance
VOUT = 3dV
11
pF
NOTE:
3567 tbl 03
1. This parameter is guaranteed by device characterization, but not prod-
uction tested.
3567 tbl 05
DC ELECTRICAL CHARACTERISTICS
VCC = 5.0V
± 10%
IDT71256SA
Symbol
Parameter
Test Condition
Min.
Max.
Unit
|ILI|
Input Leakage Current
VCC = Max., VIN = GND to VCC
5
µA
|ILO|
Output Leakage Current
VCC = Max.,
CS = VIH, VOUT = GND to VCC
5
µA
VOL
Output Low Voltage
IOL = 8mA, VCC = Min.
0.4
V
VOH
Output High Voltage
IOH = –4mA, VCC = Min.
2.4
V
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
X
X
High-Z
Deselected — Standby (ISB1)
NOTES:
3567 tbl 04
1. H = VIH, L = VIL, x = Don't care.
2. VLC = 0.2V, VHC = VCC –0.2V.
3. Other inputs
≥VHC or ≤VLC.
(3)
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
VCC+0.5
V
VIL
Input Low Voltage
–0.5
(1)
0.8
V
NOTE:
3567 tbl 01
1. VIL (min.) = –1.5V for pulse width less than 10ns, once per cycle.
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
1.0
W
Dissipation
IOUT
DC Output
50
mA
Current
NOTES:
3567 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.
3567 drw 02
5
6
7
8
9
10
11
12
GND
1
2
3
4
24
23
22
21
20
19
18
17
SO28-5
P28-1
P28-2
13
14
28
27
26
25
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VCC
A14
WE
A13
A8
A10
A11
OE
A12
CS
I/O7
I/O6
I/O5
I/O4
I/O3
A9
16
15
SOJ/DIP
TOP VIEW
3567 drw 03
22
23
24
25
26
27
28
1
2
3
4
5
7
6
21
20
19
18
17
16
15
14
13
12
11
10
9
8
A 10
CS
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A 0
A 1
A 2
SO28-8
OE
A 11
A 9
A 8
A 13
A 14
A 7
A 6
A 5
A 4
A 3
A 12
WE
V CC
TSOP
TOP VIEW




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