HX6408-VFN [HONEYWELL]

512k x 8 STATIC RAM; 512K ×8静态RAM
HX6408-VFN
型号: HX6408-VFN
厂家: Honeywell    Honeywell
描述:

512k x 8 STATIC RAM
512K ×8静态RAM

存储 内存集成电路 静态存储器
文件: 总11页 (文件大小:167K)
中文:  中文翻译
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HX6408  
512k x 8 STATIC RAM  
The 512K x 8 Radiation Hardened Static RAM is a high  
performance 524,288 word x 8-bit static random access  
memory with optional industry-standard functionality. It is  
fabricated with Honeywell’s radiation hardened Silicon On  
Insulator (SOI) technology, and is designed for use in low  
voltage systems operating in radiation environments. The  
RAM operates over the full military temperature range and  
requires only a single 3.3 V ± 0.3V power supply. Power  
consumption is typically <30 mW @ 1MHz in write mode,  
<14 mW @ 1MHz in read mode, and is less than 5 mW  
when in standby mode.  
The RICMOS™ V low power process is a SOI CMOS  
technology with an 80 Å gate oxide and a minimum  
drawn feature size of 0.35 µm. Additional features  
include tungsten via and contact plugs, Honeywell’s  
proprietary SHARP planarization process and a lightly  
doped drain (LDD) structure for improved short  
channel reliability. A seven transistor (7T) memory cell  
is used for superior single event upset hardening,  
while three layer metal power busing and the low  
collection volume SOI substrate provide improved  
dose rate hardening.  
Honeywell’s enhanced RICMOS™(Radiation Insensitive  
CMOS) SOI V technology is radiation hardened through the  
use of advanced and proprietary design, layout and process  
hardening techniques.  
FEATURES  
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No Latchup  
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Single Power Supply,  
3.3 V ± 0.3 V  
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Fabricated with RICMOS™ V  
Silicon On Insulator (SOI)  
Read/Write Cycle Times  
20 ns, (3.3 V), -55 to 125°C  
Operating Range is  
-55°C to +125°C  
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0.35 mm Process (Leff = 0.28 µm)  
Total Dose 3x105 and 1X106 rad(SiO2)  
Neutron 1x1014 cm-2  
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Typical Operating Power (3.3 V)  
<14 mW @ 1MHz Read  
<30 mW @ 1MHz Write  
<5 mW Standby mode  
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36-Lead Flat Pack Package  
Optional Low Power Sleep  
Mode  
Dynamic and Static Transient Upset  
1x1010 rad(Si)/s (3.3 V)  
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Asynchronous Operation  
CMOS Compatible I/O  
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Dose Rate Survivability 1x1012 rad(Si)/s  
Soft Error Rate  
1x10-10 Upsets/bit-day (3.3 V)  
www.honeywell.com  
HX6408  
Advanced Information  
FUNCTIONAL DIAGRAM  
36 LEAD FLAT PACK PINOUT  
HX6408  
Top View  
A0  
A1  
1
2
3
4
5
6
7
8
9
36 (NSL)  
35 A18  
34 A17  
33 A16  
32 A15  
31 NOE  
30 D4  
Memory  
Array  
An  
A2  
A3  
A4  
NCS  
D0  
NWE  
DQ(0:7)  
D1  
29 D5  
WE • CS  
VDD  
28 VSS  
27 VDD  
26 D6  
NSL  
NCS  
VSS 10  
D2 11  
D3 12  
NWE 13  
A5 14  
NWE • CS  
25 D7  
24 A14  
23 A13  
22 A12  
21 A11  
20 A10  
19 NAS  
NOE  
All controls must be enabled  
for signal to pass.  
A6 15  
# = number of buffers,  
Default = 1  
A7 16  
A8 17  
1 = enabled  
A9 18  
Signal  
Signal  
#
SIGNAL DEFINITIONS  
A: 0-18  
Address input pins, which select a particular eight-bit word within the memory array.  
DQ: 0-7 Bidirectional data pins, which serve as data outputs during a read operation and as data inputs  
during a write operation.  
NCS  
Negative chip select, when at a low level allows normal read or write operation. When at a high level  
NCS forces the SRAM to a precharge condition, holds the data output drivers in a high impedance  
state. If this signal is not used it must be connected to VSS.  
NWE  
NOE  
Negative write enable, when at a low level activates a write operation and holds the data output  
drivers in a high impedance state. When at a high level NWE allows normal read operation.  
Negative output enable, when at a high level holds the data output drivers in a high impedance  
state. When at a low level, the data output driver state is defined by NCS, NWE and NSL. This  
signal is asynchronous.  
NSL  
Not sleep, when at a high level allows normal operation. When at a low level NSL forces the SRAM  
to a precharge condition, holds the data output drivers in a high impedance state and disables all the  
input buffers except the NCS and NOE input buffers. If this signal is not used it must be connected  
to VDD. This signal is asynchronous. The HX6408 may be ordered without the sleep mode option  
and pin 36 is then a NC.  
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HX6408  
Advanced Information  
TRUTH TABLE  
NCS NSL NWE  
NOE  
L
X
X
X
Mode  
Read  
Write  
DQ  
L
L
H
H
X
L
H
L
Data Out  
Data In  
High Z  
High Z  
H
X
X
X
Deselected  
Sleep  
X: VI = VIH or VIL,  
NOE=H:  
High Z output state maintained for NCS=X, NWE=X  
RADIATION  
significantly exceed the normal operating levels. The  
application design must accommodate these effects.  
Total Ionizing Radiation Dose  
The SRAM will meet all stated functional and electrical  
specifications over the entire operating temperature  
range after the specified total ionizing radiation dose.  
All electrical and timing performance parameters will  
remain within specifications. Total dose hardness is  
assured by wafer level testing of process monitor  
transistors and RAM product using 10 KeV X-ray.  
Transistor gate threshold shift correlations have been  
made between 10 KeV X-rays applied at a dose rate of  
1x105 rad(SiO2)/min at T= 25°C and gamma rays  
(Cobalt 60 source) to ensure that wafer level X-ray  
testing is consistent with standard military radiation test  
environments.  
Neutron Radiation  
The SRAM will meet any functional or timing  
specification after exposure to the specified neutron  
fluence under recommended operating or storage  
conditions. This assumes an equivalent neutron energy  
of 1 MeV.  
Soft Error Rate  
The SRAM is capable of meeting the specified Soft  
Error Rate (SER), under recommended operating  
conditions.  
This hardness level is defined by the Adams 90%  
worst case cosmic ray environment for  
geosynchronous orbits.  
Transient Pulse Ionizing Radiation  
The SRAM is capable of writing, reading, and retaining  
stored data during and after exposure to a transient  
ionizing radiation pulse, up to the specified transient  
dose rate upset specification, when applied under  
recommended operating conditions. It is recommended  
to provide external power supply decoupling capacitors  
to maintain VDD voltage levels during transient events.  
The SRAM will meet any functional or electrical  
specification after exposure to a radiation pulse up to  
the transient dose rate survivability specification, when  
applied under recommended operating conditions.  
Note that the current conducted during the pulse by the  
RAM inputs, outputs, and power supply may  
Latchup  
The SRAM will not latch up due to any of the above  
radiation exposure conditions when applied under  
recommended operating conditions. Fabrication with  
the SOI substrate material provides oxide isolation  
between adjacent PMOS and NMOS transistors and  
eliminates any potential SCR latchup structures.  
Sufficient transistor body tie connections to the p- and  
n-channel substrates are made to ensure no  
source/drain snapback occurs.  
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HX6408  
Advanced Information  
RADIATION HARDNESS RATINGS (1)  
Parameter  
Limits (2)  
Units  
rad(SiO2)  
Test Conditions  
3X105  
1X106  
1X1010  
TA=25°C  
Total Dose  
Transient Dose Rate Upset  
rad(Si)/s  
rad(Si)/s  
Pulse width 50 ns  
VDD>3.6V, TA=25°C  
1X1012  
Pulse width 50 ns, X-  
ray,VDD=3.6V,  
TA=25°C  
Transient Dose Rate Survivability  
<1X10-10  
Upsets/bit-day  
N/cm2  
TA= 85°C, Adams 90%  
worst case environment  
Soft Error Rate  
1X1014  
1MeV equivalent  
energy, Unbiased,  
TA=25°C  
Neutron Fluence  
(1) Device will not latch up due to any of the specified radiation exposure conditions.  
(2) Operating conditions (unless otherwise specified): VDD=3.0V to 3.6V, TA=-55oC to 125oC  
ABSOLUTE MAXIMUM RATINGS (1)  
Symbol  
Parameter  
Rating  
Units  
Min  
-0.5  
-0.5  
-65  
Max  
4.6  
VDD+0.5  
150  
VDD  
VPIN  
TSTORE  
TSOLDER  
PD  
IOUT  
VPROT  
ΘJC  
Supply Voltage Range (2)  
Voltage on Any Pin (2)  
V
V
°C  
°C  
W
mA  
V
°C/W  
Storage Temperature (Zero Bias)  
Soldering Temperature (5 seconds)  
Maximum Power Dissipation (3)  
DC or Average Output Current  
EST Input Protection Voltage (4)  
Thermal Resistance (Jct-to-Case)  
270  
2.5  
25  
2000  
36 Pin FP  
2
TJ  
Junction Temperature  
175  
°C  
(1) Stresses in excess of those listed above may result in permanent damage. These are stress ratings only, and operation at these levels is  
not implied. Frequent or extended exposure to absolute maximum conditions may affect device reliability.  
(2) Voltage referenced to VSS.  
(3) RAM power dissipation (IDDSB + IDDOP) plus RAM output driver power dissipation due to external loading must not exceed this  
specification.  
(4) Class 2 electrostatic discharge (ESD) input protection. Tested per MIL-STD-883, Method 3015 by DSEC certified lab.  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Parameter  
Description  
Units  
Min  
3.0  
-55  
Typ  
3.3  
25  
Max  
3.6  
125  
VDD+0.3  
50  
VDD  
TA  
VPIN  
Supply Voltage (referenced to VSS)  
Ambient Temperature  
Voltage on Any Pin (referenced to VSS)  
VDD Turn on ramp time  
V
°C  
V
-0.3  
VDDRAMP  
ms  
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HX6408  
Advanced Information  
DC ELECTRICAL CHARACTERISTICS  
Symbol  
Parameter  
Worst Case (1)  
Min  
Units  
Test Conditions  
Max  
IDDSB  
Static Supply Current  
TA=25°C  
TA=125°C  
Static Supply Current  
5
10  
24  
mA  
mA  
VDD=max, Iout=0mA,  
Inputs Stable  
IDDOP3  
VDD=max, Iout=0mA,  
f=fmax, NSL=NCS=VIH (2)  
Deselected  
IDDOPW  
Dynamic Supply Current,  
Selected (Write)  
1 MHz  
9
18  
89  
160  
260  
mA/MHz  
mA/MHz  
VDD=max, Iout=0mA,  
NSL=VIH, NCS=VIL (1)  
2 MHz  
10 MHz  
25 MHz  
40 MHz  
IDDOPR  
Dynamic Supply Current,  
Selected (Read)  
1 MHz  
2 MHz  
4
8
VDD=max, Iout=0mA,  
NSL=VIH, NCS=VIL (1)  
10 MHz  
25 MHz  
40 MHz  
40  
100  
160  
1.5  
IDDOP1  
IDDOP2  
Dynamic Supply Current,  
Deselected  
mA  
mA  
VDD=max, Iout=0mA,  
f=1MHz, NSL=VIH (2)  
VDD=max, Iout=0mA,  
f=1MHz, NSL=VIL (2)  
Dynamic Supply Current,  
Sleep  
0.2  
II  
Input Leakage Current  
Output Leakage Current  
-5  
5
µA  
µA  
Vss VI VDD  
IOZ  
-10  
10  
Vss VIO  
VDD output = high Z  
VDD=3.0V  
VDD=3.6V  
VDD=3.0V, IOL = 8mA  
VDD=3.0V, IOH = 4mA  
VIL  
VIH  
VOL  
VOH  
Low-Level Input Voltage  
High-Level Input Voltage  
Low-Level Output Voltage  
High-Level Output Voltage  
0.3xVDD  
0.4  
V
V
V
V
0.7xVDD  
2.7  
(1) Worst case operating conditions: VDD=3.0V to 3.6V, -55°C to +125°C, post total dose at 25°C.  
(2) All inputs switching. DC average current.  
CAPACITANCE (1)  
Symbol  
Parameter  
Worst Case (1)  
Units  
Test Conditions  
Min  
Max  
9
8
CI  
CO  
Input Capacitance  
Output Capacitance  
pF  
pF  
VI=VDD or VSS, f=1 MHz  
VIO=VDD or VSS, f=1 MHz  
(1) This parameter is tested during initial design characterization only.  
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HX6408  
Advanced Information  
DATA RETENTION CHARACTERISTICS  
Symbol Parameter  
Typical  
(1)  
Worst Case (2)  
Units Test Conditions  
Min  
Max  
VDR  
IDR  
Data Retention Voltage  
Data Retention Current  
2.0  
V
NCS=VDR  
VI=VDR or VSS  
NCS=VDD=VDR  
VI=VRD or VSS  
3
mA  
(1) Typical operating conditions: TA=25°C, pre-radiation.  
(2) Worst case operating conditions: TA=-55°C to +125°C, post dose at 25°C  
TESTER EQUIVALENT LOAD CIRCUIT  
Valid High  
Output  
1.9V  
V1  
V2  
249  
Valid Low  
Output  
DUT  
Output  
CL < 50 pf *  
* CL = 5pf for TWQZ, TSHQZ, TPLQZ, and TGHQZ  
Tester AC Timing Characteristics  
Input Levels *  
VDD  
VSS  
* Input rise and fall times <5 ns.  
Output Sense  
Levels  
VDD/2  
High Z  
VDD – 0.4V  
0.4V  
High Z = VDD/2  
(VDD/2) + 0.2V  
High Z  
(VDD/2) - 0.2V  
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HX6408  
Advanced Information  
ASYCHRONOUS READ CYCLE AC TIMING CHARACTERISTICS (1)  
Worst Case (3)  
-55 to 125°C  
Symbol  
Parameter  
Typical  
(2)  
Units  
Min  
20  
Max  
TAVAVR  
TAVQV  
Address Read Cycle Time  
Address Access Time  
300KRad  
1MRad  
ns  
ns  
25  
300KRad  
1MRad  
20  
25  
TAXQX  
TSLQV  
Address Change to Output Invalid Time  
Chip Select Access Time  
3
4
5
0
ns  
ns  
300KRad  
1MRad  
20  
25  
TSLQX  
TSHQZ  
TPHQV  
TPHQX  
TPLQZ  
TGLQV  
TGLQX  
TGHQZ  
Chip Select Output Enable Time  
Chip Select Output Disable Time  
Sleep Enable Access Time  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
8
25  
Sleep Enable Output Enable Time  
Sleep Enable Output Disable Time  
Output Enable Access Time  
10  
5
Output Enable Output Enable Time  
Output Enable Output Disable Time  
5
(1) Test conditions: input switching levels, VIL/VIH=0V/3V, input rise and fall times <1 ns/V, input and output timing reference levels shown in  
the Tester AC Timing Characteristics table, capacitive output loading CL50 pF, or equivalent capacitive output loading CL=5 pF for  
TSHQZ, TPLQZ TGHQZ. For CL>50 pF, derate access times by 0.02 ns/pF (typical).  
(2) Typical operating conditions: VDD=3.3V, TA=25°C, pre-radiation.  
(3) Worst case operating conditions: VDD=3.0V to 3.6V, TA=-55°C to 125°C, post total dose 25°C at  
TAVAVR  
ADDRESS  
TAVQV  
TAXQX  
TSLQV  
NCS  
TSLQX  
TSHQZ  
HIGH  
IMPEDANCE  
DATA VALID  
DATA OUT  
TPHQX  
TPLQZ  
TPHQV  
NSL  
TGLQX  
TGLQV  
TGHQZ  
NOE  
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HX6408  
Advanced Information  
ASYNCHRONOUS WRITE CYCLE AC TIMING CHARACTERISTICS (1)  
Worst Case (3)  
-55 to 125°C  
Symbol  
TAVAVW  
TWLWH  
TSLWH  
TDVWH  
TAVWH  
Parameter  
Typical  
(2)  
Units  
ns  
Min  
20  
25  
15  
20  
16  
20  
12  
15  
20  
25  
0
Max  
Write Cycle Time (4)  
300KRad  
1MRad  
Write Enable Write Pulse Width  
Chip Select to End of Write Time  
Data Valid to End of Write Time  
Address Valid to End of Write Time  
300KRad  
1MRad  
ns  
300KRad  
1MRad  
ns  
300KRad  
1MRad  
ns  
300KRad  
1MRad  
ns  
TWHDX  
TAVWL  
TWHAX  
TWLQZ  
TWHQX  
TWHWL  
Data Hold after End of Write Time  
ns  
ns  
ns  
ns  
ns  
ns  
Address Valid Setup to Start of Write Time  
Address Valid Hold after End of Write Time  
Write Enable to Output Disable Time  
Write Disable to Output Enable Time  
0
0
7
4
5
Write Disable to Write Enable Pulse Width (5)  
(1) Test conditions: input switching levels, VIL/VIH=0V/3V, input rise and fall times <1 ns/V, input and output timing reference levels shown in  
the Tester AC Timing Characteristics table, capacitive output loading 50 pF, or equivalent capacitive load 5 pF for TWLQZ.  
(2) Typical operating conditions: VDD=3.3V, TA=25°C, pre-radiation.  
(3) Worst case operating conditions: VDD=3.0V to 3.6V, -55°C to 125°C, post total dose 25°C  
(4) TAVAVW = TWLWH + TWHWL  
(5) Guaranteed but not tested  
TAVAVW  
ADDRESS  
TAVWH  
TWHAX  
TAVWL  
TWHWL  
TWLWH  
NWE  
TWHQX  
TWLQZ  
HIGH  
IMPEDANCE  
DATA OUT  
DATA IN  
NCS  
TWHDX  
TDVWH  
DATA VALID  
TSLWH  
TPHWH  
NSL  
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HX6408  
Advanced Information  
DYNAMIC ELECTRICAL CHARACTERISTICS  
be delayed. Any address edge transition, which  
occurs during the time when NSL is high will initiate a  
new read access, and data outputs will not become  
valid until TAVQV time following the address edge  
transition. Data outputs will enter a high impedance  
state TPLQZ time following a disabling NSL edge  
transition.  
Asynchronous Operation  
The RAM is asynchronous in operation. Read and  
Write cycles are controlled by NWE, NCS, NSL, and  
Address signals.  
Read Operation  
To perform a valid read operation, both chip select  
and output enable (NOE) must be low and not sleep  
(NSL) and write enable (NWE) must be high. The  
output drivers can be controlled independently by the  
NOE signal.  
Write Operation  
To perform a write operation, both NWE and NCS  
must be low, and NSL must be high.  
To perform consecutive read operations, NCS is  
required to be held continuously low, NSL held  
continuously high, and the toggling of the addresses  
will start the new read cycle.  
Consecutive write cycles can be performed by  
toggling one of the control signals while the other  
remains in their “write” state (NWE or NCS held  
continuously low, or NSL held continuously high). At  
least one of the control signals must transition to the  
opposite state between consecutive write operations.  
It is important to have the address bus free of noise  
and glitches, which can cause inadvertent read  
operations. The control and address signals should  
have rising and falling edges that are fast (<5 ns) and  
have good signal integrity (free of noise, ringing or  
steps associated reflections).  
The write mode can be controlled via three different  
control signals: NWE, NCS, and NSL. All three modes  
of control are similar, except the NCS and NSL  
controlled modes actually disable the RAM during the  
write recovery pulse. NSL fully disables the RAM  
decode logic and input buffers for power savings.  
Only the NWE controlled mode is shown in the table  
and diagram on the previous page for simplicity;  
however, each mode of control provides the same  
write cycle timing characteristics. Thus, some of the  
parameter names referenced below are not shown in  
the write cycle table or diagram, but indicate which  
control pin is in control as it switches high or low. To  
write data into the RAM, NWE and NCS must be held  
low and NSL must be held high for at least  
For an address activated read cycle, NCS and NSL  
must be valid prior to or coincident with the address  
edge transition(s). Any amount of toggling or skew  
between address edge transitions is permissible;  
however, data outputs will become valid TAVQV time  
following the latest occurring address edge transition.  
The minimum address activated read cycle time is  
TAVAV. When the RAM is operated at the minimum  
address activated read cycle time, the data outputs  
will remain valid on the RAM I/O until TAXQX time  
following the next sequential address transition.  
WLWH/TSLSH/TPHPH time. Any amount of edge  
skew between the signals can be tolerated, and any  
one of the control signals can initiate or terminate the  
write operation. The DATA IN must be valid TDVWH  
time prior to switching high.  
To control a read cycle with NCS, all addresses and  
NSL must be valid prior to or coincident with the  
enabling NCS edge transition. Address or NSL edge  
transitions can occur later than the specified setup  
times to NCS; however, the valid data access time will  
be delayed. Any address edge transition, which  
occurs during the time when NCS is low, will initiate a  
new read access, and data outputs will not become  
valid until TAVQV time following the address edge  
transition. Data outputs will enter a high impedance  
state TSHQZ time following a disabling NCS edge  
transition.  
For consecutive write operations, write pulses (NWE)  
must be separated by the minimum specified  
WHWL/TSHSL/TPLPL time. Address inputs must be  
valid at least TAVWL/TAVSL/TAVPH time before the  
enabling NWE/NCS/NSL edge transition, and must  
remain valid during the entire write time. A valid data  
overlap of write pulse width time of TDVWH/TDVSH/  
TDVPL, and an address valid to end of write time of  
TAVWH/TAVSH/TAVPL also must be provided for  
during the write operation. Hold times for address  
inputs and data inputs with respect to the disabling  
NWE/NCS/NSL edge transition must be a minimum of  
TWHAX/TSHAX/TPLPX time and TWHDX/TSHDX  
To control a read cycle with NSL, all addresses and  
NCS must be valid prior to or coincident with the  
enabling NSL edge transition. Address or NCS edge  
transitions can occur later than the specified setup  
times to NSL; however, the valid data access time will  
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HX6408  
Advanced Information  
/TPLDX time, respectively. The minimum write cycle  
time is TAVAV.  
QUALITY AND RADIATION HARDNESS ASSURANCE  
Honeywell maintains a high level of product integrity  
through process control, utilizing statistical process  
control, a complete  
need to create detailed specifications and offer  
benefits of improved quality and cost savings through  
standardization.  
“Total Quality Assurance System,” a computer data  
base process performance tracking system and a  
radiation-hardness assurance strategy.  
RELIABILITY  
Honeywell understands the stringent reliability  
requirements for space and defense systems and has  
extensive experience in reliability testing on programs  
of this nature. This experience is derived from  
comprehensive testing of VLSI processes. Reliability  
attributes of the RICMOS™ SOI process were  
characterized by testing specially designed irradiated  
and non-irradiated test structures from which specific  
failure mechanisms were evaluated. These specific  
mechanisms included, but were not limited to, hot  
carriers, electromigration and time dependent  
dielectric breakdown. This data was then used to  
make changes to the design models and process to  
ensure more reliable products.  
The radiation hardness assurance strategy starts with  
a technology that is resistant to the effects of  
radiation. Radiation hardness is assured on every  
wafer by irradiating test structures as well as SRAM  
product, and then monitoring key parameters, which  
are sensitive to ionizing radiation. Conventional MIL-  
STD-883 TM 5005 Group E testing, which includes  
total dose exposure with Cobalt 60, may also be  
performed as required. This Total Quality approach  
ensures our customers of a reliable product. It starts  
with process development and continuing through  
product qualification and screening.  
SCREENING LEVELS  
In addition, the reliability of the RICMOS™ SOI  
process and product in a military environment is  
monitored by testing  
irradiated and non-irradiated circuits in accelerated  
dynamic life test conditions. Packages were qualified  
for product use after undergoing Groups B & D testing  
as outlined in MIL-STD-883, TM 5005, Class S.  
Quality conformance testing is performed as an option  
on all production lots to ensure the ongoing reliability  
of the product.  
Honeywell offers several levels of device screening to  
meet your system needs. “Engineering Devices” are  
available with limited performance and screening for  
operational evaluation testing. Hi-Rel Level B and S  
devices undergo additional screening per the  
requirements of MILSTD-883. As a QML supplier,  
Honeywell also offers QML Class Q and V devices  
per MIL-PRF-38535 and are available per the  
applicable Standard Microcircuit Drawing (SMD). QML  
devices offer ease of procurement by eliminating the  
PACKAGING  
available as NC to conform to commercial  
standards. All NC (no connect) pins should be  
connected to VSS to prevent charge build up in  
the radiation environment.  
The 512K x 8 SRAM is offered in a commercially  
compatible 36-lead flat pack. This package is  
constructed of multi-layer ceramic (Al2O3) and  
contains internal power and ground planes.  
Parentheses denote pin options. These pins are  
10  
www.honeywell.com  
HX6408  
Advanced Information  
PACKAGE OUTLINE  
COMMON DIMENSIONS  
SYM  
A
A1  
B
C
D
E
E1  
L
MIN.  
.102  
.085  
.016  
.004  
.910  
.045  
.832  
-----  
NOM.  
.113  
.095  
.018  
.006  
.920  
.050  
.840  
.450  
.104  
MAX.  
.125  
.105  
.020  
.008  
.930  
.055  
.848  
-----  
Q
-----  
-----  
ORDERING INFORMATION (1)  
H
X
6408  
X
S
H
N
SCREEN LEVEL  
V = QML Class V Equivalent (4)  
Q = QML Class Q Equivalent (4)  
S = Level S  
MODE (3)  
PART NUMBER  
N = Non-Sleep Mode  
M = Sleep Mode  
PROCESS  
X = SOI  
E = Eng. Model (2)  
Source  
H = Honeywell  
TOTAL DOSE HARDNESS  
R = 1x105 rad (SiO2)  
PACKAGE DESIGNATION  
X = 36 Lead FP  
K = Known Good Die  
- = Bare Die (no package)  
F = 3x105 rad (SiO2)  
H = 1x106 rad (SiO2)  
N = No Level Guaranteed (2)  
(1) Orders may be faxed to 763-954-2051. Please contact our Customer Service Representative at 763-954-2888 for further information.  
(2) Engineering Device Description: Parameters are tested -55°C to 125°C, 24 hour burn-in, IDDSB = 10 mA, no radiation Guaranteed.  
(3) With the Non-Sleep Mode option, Pin 36 is a no-connect (NC), and is not wirebonded to the chip. With the Sleep Mode, Pin 36 has the  
NSL function.  
(4) These devices are screened to QML levels but are not QML certified.  
For more information about Honeywell’s family of radiation hardened integrated circuit products and services,  
visit www.myspaceparts.com.  
Honeywell reserves the right to make changes to any products or technology herein to improve reliability, function or design. Honeywell does not assume any  
liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of  
others.  
Honeywell International Inc.  
Aerospace Electronics Systems  
Defense & Space Electronics Systems  
12001 Highway 55  
Form #900918  
June 2005  
©2005 Honeywell International Inc.  
Plymouth, MN 55441  
1-800-323-8295  

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