71256L25YG Datasheet, PDF (2/10 Pages) List of Unclassifed Manufacturers – CMOS Static RAM 256K (32K x 8-Bit)

IDT71256S/L
CMOS Static RAM 256K (32K x 8-Bit)
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 D28-3 23
7 D28-1 22
8 ^SO28-5 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
2946 drw 02
DIP/SOJ
Top View
Pin Descriptions
Name
A0 - A14
I/O0 - I/O7
CS
WE
OE
GND
VCC
Description
Address Inputs
Data Input/Output
Chip Select
Write Enable
Output Enable
Ground
Power
Military, Commercial, and Industrial Temperature Ranges
Truth Table⁽¹⁾
WE CS OE
I/O
Function
X
H
X High-Z
Standby (ISB)
X
VHC
X
High-Z
Standby (ISB1)
H
L
H High-Z
Output Disabled
H
L
L
DOUT
Read Data
L
L
X
DIN
Write Data
NOTE:
1. H = VIH, L = VIL, X = Don't care.
2946 tbl 02
2946 tbl 01
Absolute Maximum Ratings⁽¹⁾
Symbol
Rating
Com'l.
Ind.
Mil. Unit
VTERM
Terminal Voltage -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 V
with Respect
to GND
TA
Operating
Temperature
0 to +70 -40 to +85 -55 to +125 ^oC
TBIAS Temperature
Under Bias
-55 to +125 -55 to +125 -65 to +135 ^oC
TSTG
Storage
Temperature
-55 to +125 -55 to +125 -65 to +150 ^oC
PT
Power
Dissipation
1.0
1.0
1.0
W
IOUT
DC Output Current
50
50
50
mA
NOTE:
2946 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.
Capacitance (TA = +25°C, f = 1.0MHz)
Symbol
Parameter⁽¹⁾
Conditions Max. Unit
CIN
Input Capacitance
VIN = 0V
11 pF
CI/O
I/O Capacitance
VOUT = 0V
11 pF
NOTE:
2946 tbl 04
1. This parameter is determined by device characterization, but is not production
tested.
2