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PDF SMJ27C512 Data sheet ( Hoja de datos )
| Número de pieza | SMJ27C512 | |
| Descripción | UVEPROM | |
| Fabricantes | Austin Semiconductor | |
| Logotipo |  |
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Austin Semiconductor, Inc.
UVEPROM
SMJ27C512
512K UVEPROM
UV Erasable Programmable
Read-Only Memory
AVAILABLE AS MILITARY
SPECIFICATIONS
• SMD 5962-87648
• MIL-STD-883
FEATURES
• Organized 65,536 x 8
• High-reliability MIL-PRF-38535 processing
• Single +5V ±10% power supply
• Pin-compatible with existing 512K read-only memories (ROMs)
and electrically programmable ROMs (EPROMs)
• All inputs/outputs fully TTL compatible
• Power-saving CMOS technology
• Very high-speed SNAP! Pulse Programming
• 3-state output buffers
• 400mV minimum DC noise immunity with standard TTL loads
• Latchup immunity of 250mA on all input and output lines
• Low power dissipation (CMOS input levels)
PActive - 193mW (MAX)
PStandby - 1.7mW (MAX)
PIN ASSIGNMENT
(Top View)
28-Pin DIP (J) 600-Mils
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 Vcc
27 A14
26 A13
25 A8
24 A9
23 A11
22 G\/VPP
21 A10
20 E\
19 DQ7
18 DQ6
17 DQ5
16 DQ4
15 DQ3
Pin Name
Function
A0 - A15 Address Inputs
DA0-DQ7 Inputs (programming)/Outputs
E\ Chip Enable/Power Down
GND Ground
G\ /VPP Output Enable/13V Programming
VCC 5V Power Supply
OPTIONS
• Timing
150ns access
200ns access
250ns access
MARKING
-15
-20
-25
• Package(s)
Ceramic DIP (600mils)
J No. 110
• Operating Temperature Ranges
Military (-55oC to +125oC)
M
For more products and information
please visit our web site at
www.austinsemiconductor.com
SMJ27512
Rev. 1.0 9/01
GENERAL DESCRIPTION
The SMJ27C512 is a set of 65536 by 8-bit (524,288-bit),
ultraviolet (UV) light erasable, electrically programmable
read-only memories. These devices are fabricated using
power-saving CMOS technology for high speed and simple
interface with MOS and bipolar circuits. All inputs
(including program data inputs can be driven by Series 54 TTL
circuits without the use of external pullup resistors. Each
output can drive one Series 54 TTL circuit without external
resistors. The data outputs are 3-state for connecting
multiple devices to a common bus. The SMJ27C512 is
pin-compatible with existing 28-pin 512K ROMs and
EPROMs.
Because this EPROM operates from a single 5V supply (in
the read mode), it is ideal for use in microprocessor-based
systems. One other supply (13V) is needed for programming.
All programming signals are TTL level. This device is
programmable by the SNAP! Pulse programming algorithm.
The SNAP! Pulse programming algorithm uses a VPP of 13V
and a VCC of 6.5V for a nominal programming time of seven
seconds. For programming outside the system, existing
EPROM programmers can be used. Locations may be
programmed singly, in blocks, or at random.
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
1 page  
Austin Semiconductor, Inc.
UVEPROM
SMJ27C512
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage Range, VCC**...........................-0.6V to +7.0V
Supply Voltage Range, Vpp**.........................-0.6V to +14.0V
Input Voltage Range, All inputs except A9**....-0.6V to 6.5V
A9....-0.6V to +13.5V
Output Voltage Range**...............................-0.6V to VCC +1V
Operating Cage Temperature Range, TC.........-55°C to 125°C
Storage Temperature Range, Tstg.....................-65°C to 150°C
*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
operation section of this specification is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
** All voltage values are with respect to GND.
RECOMMENDED OPERATING CONDITIONS
VCC
G\ /VPP
VID
VIH
VIL
TC
Supply Voltage1
Supply Voltage2
Read Mode
SNAP! Pulse programming algorithm
SNAP! Pulse programming algorithm
Voltage level on A9 for signature mode
High-level DC input voltage
Low-level DC input voltage
Operating case temperature
TTL
CMOS
TTL
CMOS
MIN
4.5
6.25
12.75
11.5
2
VCC-0.2
-0.5
-0.5
-55
NOM
5
6.5
13
MAX
5.5
6.75
13.25
12.5
VCC+1
VCC+1
0.8
0.2
125
UNIT
V
V
V
V
V
V
V
V
°C
NOTES:
1. VCC must be applied before or at the same time as G\ /VPP and removed after or at the same time as G\ /VPP. The deivce must not be inserted into or removed
from the board when G\ /VPP or VCC is applied.
2. G\ /VPP can be connected to VCC directly (except in the program mode). VCC supply current in this case is ICC + IPP.
ELECTRICAL CHARACTERISTICS OVER RECOMMENDED RANGES OF
OPERATING CONDITIONS
PARAMETER
TEST CONDITIONS
VOH High-level output voltage
IOH = -400µA
VOL Low-level output voltage
IOL = 2.1mA
II Input current (leakage)
VI = 0V to 5.5V
IO Output current (leakage)
IPP G\ /VPP supply current (during program pulse)2
VO = 0V to VCC
G\ /VPP = 13V
TTL-Input Level
ICC1 VCC supply current (standby)
VCC = 5.5V, E\=VIH
CMOS-Input Level VCC = 5.5V, E\=VCC
ICC2 VCC supply current (active)
E\=VIL, VCC=5.5V
tcycle = minimum cycle time,
outputs open
NOTES:
1. Typical values are at TC=25°C and nominal voltages.
2. This parameter has been characterized at 25°C and is not production tested.
MIN
2.4
TYP1
35
35
MAX
0.4
10
10
70
500
325
50
SMJ27512
Rev. 1.0 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
5
5 Page 
Austin Semiconductor, Inc.
UVEPROM
SMJ27C512
ASI TO DSCC PART NUMBER
CROSS REFERENCE*
ASI Package Designator J
TI Part #**
SMJ27C512-15JM
SMJ27C512-20JM
SMJ27C512-25JM
SMD Part #
5962-8764801XA
5962-8764802XA
5962-8764803XA
* ASI part number is for reference only. Orders received referencing the SMD part number will be processed per the SMD.
** Parts are listed on SMD under the old Texas Instruments part number. ASI purchased this product line in November of 1999.
SMJ27512
Rev. 1.0 9/01
11
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
11 Page | ||
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| PDF Descargar | [ Datasheet SMJ27C512.PDF ] | |
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