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UT28F256T-40UCA 参数 Datasheet PDF下载

UT28F256T-40UCA图片预览
型号: UT28F256T-40UCA
PDF下载: 下载PDF文件 查看货源
内容描述: 抗辐射32K ×8 PROM [Radiation-Hardened 32K x 8 PROM]
分类和应用: 可编程只读存储器
文件页数/大小: 11 页 / 71 K
品牌: AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
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Standard Products
UT28F256 Radiation-Hardened 32K x 8 PROM
Data Sheet
December 2002
FEATURES
q
Programmable, read-only, asynchronous, radiation-
hardened, 32K x 8 memory
- Supported by industry standard programmer
q
45ns and 40ns maximum address access time (-55
o
C to
+125
o
C)
q
TTL compatible input and TTL/CMOS compatible output
levels
q
Three-state data bus
q
Low operating and standby current
- Operating: 125mA maximum @25MHz
Derating: 3mA/MHz
- Standby: 2mA maximum (post-rad)
q
Radiation-hardened process and design; total dose
irradiation testing to MIL-STD-883, Method 1019
-
-
-
Total dose: 1E6 rad(Si)
LET
TH
(0.25) ~ 100 MeV-cm
2
/mg
SEL Immune >128 MeV-cm
2
/mg
- Saturated Cross Section cm
2
per bit, 1.0E-11
- 1.2E-8 errors/device-day, Adams 90% geosynchronous
heavy ion
-
Memory cell LET threshold: >128 MeV-cm
2
/mg
q
QML Q & V compliant part
- AC and DC testing at factory
q
Packaging options:
- 28-lead 50-mil center flatpack (0.490 x 0.74)
- 28-lead 100-mil center DIP (0.600 x 1.4) - contact factory
q
V
DD
: 5.0 volts
+
10%
q
Standard Microcircuit Drawing 5962-96891
PRODUCT DESCRIPTION
The UT28F256 amorphous silicon anti-fuse PROM is a high
performance, asynchronous, radiation-hardened,
32K x 8 programmable memory device. The UT28F256 PROM
features fully asychronous operation requiring no external clocks
or timing strobes. An advanced radiation-hardened twin-well
CMOS process technology is used to implement the UT28F256.
The combination of radiation-hardness, fast access time, and low
power consumption make the UT28F256 ideal for high speed
systems designed for operation in radiation environments.
A(14:0)
DECODER
MEMORY
ARRAY
SENSE AMPLIFIER
CE
PE
OE
PROGRAMMING
CONTROL
LOGIC
DQ(7:0)
Figure 1. PROM Block Diagram
1