IDT71256SA70PE Просмотр технического описания (PDF) - Integrated Device Technology
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IDT71256SA70PE Datasheet PDF : 7 Pages
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IDT71256SA
CMOS STATIC RAM 256K (32K x 8-BIT) IN PE PACKAGES
PIN CONFIGURATIONS
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
1
28
2
27
3
26
4
25
5
24
6
23
7 SO28-3 22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
WE
A13
A8
A9
A11
OE
A10
CS
I/O7
I/O6
I/O5
I/O4
I/O3
3605 drw 02
SOIC
TOP VIEW
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
Current
50
mA
NOTES:
3605 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.
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:
3605 tbl 01
1. VIL (min.) = –1.5V for pulse width less than 10ns, once per cycle.
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:
3605 tbl 03
1. This parameter is guaranteed by device characterization, but not prod-
uction tested.
TRUTH TABLE(1,2)
CS
OE
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
NOTES:
1. H = VIH, L = VIL, x = Don't care.
2. VLC = 0.2V, VHC = VCC –0.2V.
3. Other inputs ≥VHC or ≤VLC.
Deselected — Standby (ISB1)
3605 tbl 04
DC ELECTRICAL CHARACTERISTICS
VCC = 5.0V ± 10%
Symbol
|ILI|
|ILO|
VOL
VOH
Parameter
Input Leakage Current
Output Leakage Current
Output Low Voltage
Output High Voltage
Test Condition
VCC = Max., VIN = GND to VCC
VCC = Max., CS = VIH, VOUT = GND to VCC
IOL = 8mA, VCC = Min.
IOH = –4mA, VCC = Min.
IDT71256SA
Min.
Max.
—
5
—
5
—
0.4
2.4
—
Unit
µA
µA
V
V
3605 tbl 05
2
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