5962F9689104QXA View Datasheet(PDF) - Aeroflex Corporation
Part Name
Description
Manufacturer
5962F9689104QXA Datasheet PDF : 11 Pages
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DEVICE OPERATION
The UT28F256 has three control inputs: Chip Enable (CE),
Program Enable (PE), and Output Enable (OE); fifteen address
inputs, A(14:0); and eight bidirectional data lines, DQ(7:0). CE
is the device enable input that controls chip selection, active, and
standby modes. AssertingCE causes I DD to rise to its active value
and decodes the fifteen address inputs to select one of 32,768
words in the memory. PE controls program and read operations.
During a read cycle, OE must be asserted to enable the outputs.
PIN NAMES
A(14:0)
CE
OE
PE
DQ(7:0)
Address
Chip Enable
Output Enable
Program Enable
Data Input/Data Output
PIN CONFIGURATION
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
VDD
PE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
Table 1. Device Operation Truth Table 1
OE PE CE I/O MODE
MODE
X
1
0
1
1
Three-state
0
Data Out
Standby
Read
1
0
0
Data In
Program
1
1
0
Three-state
Read 2
Notes:
1. “X” is defined as a “don’t care” condition.
2. Device active; outputs disabled.
ABSOLUTE MAXIMUM RATINGS 1
(Referenced to VSS)
SYMBOL
PARAMETER
LIMITS
UNITS
VDD
VI/O
TSTG
PD
TJ
ΘJC
II
DC supply voltage
Voltage on any pin
Storage temperature
Maximum power dissipation
Maximum junction temperature
Thermal resistance, junction-to-case 2
DC input current
-0.3 to 7.0
-0.5 to (VDD + 0.5)
-65 to +150
1.5
+175
3.3
±10
V
V
°C
W
°C
°C/W
mA
Notes:
1 . Stresses outside the listed 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 beyond limits indicated in the operational sections of this specification is not recommended. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2. Test per MIL-STD-883, Method 1012, infinite heat sink.
2
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