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Aerospace Electronics
32K x 8 STATIC RAM--SOI
FEATURES
RADIATION * Fabricated with RICMOSTM IV Silicon on Insulator (SOI) 0.75 m Process (Leff = 0.6 m) * Total Dose Hardness through 1x106 rad(SiO2) * Neutron Hardness through 1x1014 cm-2 * Typical Operating power < 15 mW/MHz * Dynamic and Static Transient Upset Hardness through 1x1011 rad(Si)/s * Dose Rate Survivability through 1x1012 rad(Si)/s * Soft Error Rate of <1x10-10 upsets/bit-day in Geosynchronous Orbit * Latchup Free * Asynchronous Operation * CMOS or TTL Compatible I/O * Single 5 V 10% Power Supply OTHER * Listed On SMD# 5962-95845 * Fast Read/Write Cycle Times 17 ns (Typical) 25 ns (-55 to 125C)
HX6356
* Packaging Options - 36-Lead CFP--Bottom Braze (0.630 in. x 0.650 in.) - 36-Lead CFP--Top Braze (0.630 in. x 0.650 in.)
GENERAL DESCRIPTION
The 32K x 8 Radiation Hardened Static RAM is a high performance 32,768 word x 8-bit static random access memory with industry-standard functionality. It is fabricated with Honeywell's radiation hardened technology, and is designed for use in systems operating in harsh, transient radiation environments. The RAM operates over the full military temperature range and requires only a single 5 V 10% power supply. The RAM is available with either TTL or CMOS compatible I/O. Power consumption is typically less than 15 mW/MHz in operation, and less than 5 mW when de-selected. The RAM read operation is fully asynchronous, with an associated typical access time of 14 ns at 5V. Honeywell's enhanced SOI RICMOSTM IV (Radiation Insensitive CMOS) technology is radiation hardened through the use of advanced and proprietary design, layout and process hardening techniques. The RICMOSTM IV process is a 5-volt, SIMOX CMOS technology with a 150 A gate oxide and a minimum drawn feature size of 0.75 m (0.6 m effective gate length--Leff). Additional features include tungsten via plugs, Honeywell's proprietary SHARP planarization process, and a lightly doped drain (LDD) structure for improved short channel reliability. A 7 transistor (7T) memory cell is used for superior single event upset hardening, while three layer metal power bussing and the low collection volume SIMOX substrate provide improved dose rate hardening.
HX6356
FUNCTIONAL DIAGRAM
A:0-8,12-13
11
Row Decoder
* * *
32,768 x 8 Memory Array
* * *
CE NCS
Column Decoder Data Input/Output NWE
WE * CS * CE
8 8 DQ:0-7
NOE
NWE * CS * CE * OE (0 = high Z)
Signal
1 = enabled # Signal
A:9-11, 14
4
All controls must be enabled for a signal to pass. (#: number of buffers, default = 1)
SIGNAL DEFINITIONS
A: 0-14 DQ: 0-7 NCS Address input pins which select a particular eight-bit word within the memory array. Bidirectional data pins which serve as data outputs during a read operation and as data inputs during a write operation. 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 and disables all input buffers except CE. If this signal is not used it must be connected to VSS. 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 CE. If this signal is not used it must be connected to VSS. Chip enable, when at a high level allows normal operation. When at a low level CE 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 input buffer. If this signal is not used it must be connected to VDD.
NWE NOE
CE
TRUTH TABLE
NCS L L H X CE H H X L NWE H L XX XX NOE L X XX XX MODE Read Write Deselected Disabled DQ Data Out Data In High Z High Z
Notes: X: VI=VIH or VIL XX: VSSVIVDD NOE=H: High Z output state maintained for NCS=X, CE=X, NWE=X
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HX6356
RADIATION CHARACTERISTICS
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 after rebound at VDD = 5.5 V and T =125C extrapolated to ten years of operation. Total dose hardness is assured by wafer level testing of process monitor transistors and RAM product using 10 keV X-ray and Co60 radiation sources. 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 = 25C and gamma rays (Cobalt 60 source) to ensure that wafer level X-ray testing is consistent with standard military radiation test environments. 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 significantly exceed the normal operating levels. The application design must accommodate these effects.
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.
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 transient dose rate upset specification, when applied under recommended operating conditions. To ensure validity of all specified performance parameters before, during, and after radiation (timing degradation during transient pulse radiation (timing degradation during transient pulse radiation is 10%), it is suggested that stiffening capacitance be placed on or near the package VDD and VSS, with a maximum inductance between the package (chip) and stiffening capacitance of 0.7 nH per part. If there are no operate-through or valid stored data requirements, typical circuit board mounted de-coupling capacitors are recommended.
Soft Error Rate The SRAM has an extremely low Soft Error Rate (SER) as specified in the table below. This hardness level is defined by the Adams 90% worst case cosmic ray environment. The low SER is achieved by the use of a unique 7-transistor memory cell and the oxide isolation of the SOI substrate. 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 SIMOX 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.
RADIATION HARDNESS RATINGS (1)
Parameter Total Dose Transient Dose Rate Upset Transient Dose Rate Survivability Soft Error Rate Neutron Fluence Limits (2) 1x106 1x1011 1x1012 <1x10-10 1x10
14
Units rad(SiO2) rad(Si)/s rad(Si)/s upsets/bit-day N/cm2
Test Conditions
TA=25C Pulse width 1 s Pulse width 50 ns, X-ray, VDD=6.0 V, TA=25C TA=125C, Adams 90% worst case environment 1 MeV equivalent energy, Unbiased, TA=25C
(1) Device will not latch up due to any of the specified radiation exposure conditions. (2) Operating conditions (unless otherwise specified): VDD=4.5 V to 5.5 V, -55C to 125C.
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HX6356
ABSOLUTE MAXIMUM RATINGS (1)
Rating Symbol VDD VPIN TSTORE TSOLDER PD IOUT VPROT Parameter Positive Supply Voltage (2) Voltage on Any Pin (2) Storage Temperature (Zero Bias) Soldering Temperature (5 Seconds) Total Package Power Dissipation (3) DC or Average Output Current ESD Input Protection Voltage (4) Thermal Resistance (Jct-to-Case) Junction Temperature - 36 FP 2000 2 175 Min -0.5 -0.5 -65 Max 6.5 VDD+0.5 150 270 2.0 25 Units V V C C W mA V C/W C
JC
TJ
(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 DESC certified lab.
RECOMMENDED OPERATING CONDITIONS
Description Symbol VDD TA VPIN Parameter Supply Voltage (referenced to VSS) Ambient Temperature Voltage on Any Pin (referenced to VSS) Min 4.5 -55 -0.3 Typ 5.0 25 Max 5.5 125 VDD+0.3 Units V C V
CAPACITANCE (1)
Symbol CI CO Parameter Input Capacitance Output Capacitance Typical (1) Worst Case Min Max 7 9 Units pF pF Test Conditions
VI=VDD or VSS, f=1 MHz VIO=VDD or VSS, f=1 MHz
(1) This parameter is tested during initial design characterization only.
DATA RETENTION CHARACTERISTICS
Symbol VDR IDR Parameter Data Retention Voltage Data Retention Current Typical
(1)
Worst Case (2) Min 2.5
500 330
Max
Units V
A A
Test Conditions
NCS=VDR VI=VDR or VSS NCS=VDD=2.5V, VI=VDD or VSS NCS=VDD=3.0V, VI=VDD or VSS
(1) Typical operating conditions: TA= 25C, pre-radiation. (2) Worst case operating conditions: -55C to +125C, post total dose at 25C.
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HX6356
DC ELECTRICAL CHARACTERISTICS
Symbol IDDSB1 Parameter Static Supply Current Typical Worst Case (2) Units (1) Min Max 0.2 0.2 3.4 2.8 -1 -1 CMOS TTL CMOS TTL 1.7 1.5 1.5 4.0 4.0 +1 +1
0.3xVDD
Test Conditions
VIH=VDD, IO=0 VIL=VSS, f=0MHz NCS=VDD, IO=0, f=40 MHz f=1 MHz, IO=0, CE=VIH=VDD NCS=VIL=VSS (3) f=1 MHz, IO=0, CE=VIH=VDD NCS=VIL=VSS (3) VSSVIVDD VSSVIOVDD Output=high Z
mA mA mA mA A A V V V V
IDDSBMF Standby Supply Current - Deselected IDDOPW IDDOPR II IOZ VIL Dynamic Supply Current, Selected (Write) Dynamic Supply Current, Selected (Read) Input Leakage Current Output Leakage Current Low-Level Input Voltage
0.8 3.2 0.3 0.005
0.7xVDD
March Pattern VDD = 4.5V March Pattern VDD = 5.5V VDD = 4.5V, IOL = 10 mA (CMOS) = 8 mA (TTL) VDD = 4.5V, IOL = 200 A VDD = 4.5V, IOH = -5 mA VDD = 4.5V, IOH = -200 A
VIH
High-Level Input Voltage
2.2 0.4 0.1 4.2
VDD-0.1
VOL
Low-Level Output Voltage
V V V V
VOH
High-Level Output Voltage
4.3 4.5
(1) Typical operating conditions: VDD= 5.0 V,TA=25C, pre-radiation. (2) Worst case operating conditions: VDD=4.5 V to 5.5 V, -55C to +125C, post total dose at 25C. (3) All inputs switching. DC average current.
2.9 V Vref1 249 DUT output Vref2
+ -
Valid high output
+ -
Valid low output
CL >50 pF* *CL = 5 pF for TWLQZ, TSHQZ, TELQZ, and TGHQZ
Tester Equivalent Load Circuit
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HX6356
READ CYCLE AC TIMING CHARACTERISTICS (1)
Worst Case (3) Symbol TAVAVR TAVQV TAXQX TSLQV TSLQX TSHQZ TEHQV TEHQX TELQZ TGLQV TGLQX TGHQZ Parameter Address Read Cycle Time Address Access Time Address Change to Output Invalid Time Chip Select Access Time Chip Select Output Enable Time Chip Select Output Disable Time Chip Enable Access Time (4) Chip Enable Output Enable Time (4) Chip Enable Output Disable Time (4) Output Enable Access Time Output Enable Output Enable Time Output Enable Output Disable Time Typical (2) Min 17 14 9 17 10 4 17 10 4 4 4 2 0 9 5 10 9 5 10 25 3 25 25 25 Max ns ns ns ns ns ns ns ns ns ns ns ns Units
(1) Test conditions: input switching levels VIL/VIH=0.5V/VDD-0.5V (CMOS), VIL/VIH=0V/3V (TTL), 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 CL >50 pF, or equivalent capacitive output loading CL=5 pF for TSHQZ, TELQZ TGHQZ. For CL >50 pF, derate access times by 0.02 ns/pF (typical). (2) Typical operating conditions: VDD=5.0 V, TA=25C, pre-radiation. (3) Worst case operating conditions: VDD=4.5 V to 5.5 V, post total dose at 25C.
TAVAVR
ADDRESS
TAVQV TSLQV TAXQX
NCS
TSLQX TSHQZ DATA VALID
DATA OUT
HIGH IMPEDANCE TEHQX TEHQV
TELQZ
CE
TGLQX TGLQV TGHQZ
NOE
(NWE = high)
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HX6356
WRITE CYCLE AC TIMING CHARACTERISTICS (1)
Worst Case (3) Symbol TAVAVW TWLWH TSLWH TDVWH TAVWH TWHDX TAVWL TWHAX TWLQZ TWHQX TWHWL TEHWH Write Cycle Time (4) 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 Data Hold Time after End of Write Time 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 Write Disable to Write Enable Pulse Width(5) Chip Enable to End of Write Time Parameter Typical (2) 13 9 10 5 9 0 0 0 3 9 4 12 Min 25 20 20 15 20 0 0 0 0 5 5 20 9 Max Units ns ns ns ns ns ns ns ns ns ns ns ns
(1) Test conditions: input switching levels VIL/VIH=0.5V/VDD-0.5V (CMOS), VIL/VIH=0V/3V (TTL), 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 of 5 pF for TWLQZ. (2) Typical operating conditions: VDD=5.0 V, TA=25C, pre-radiation. (3) Worst case operating conditions: VDD=4.5 V to 5.5 V, -55 to 125C, post total dose at 25C. (4) TAVAVW = TWLWH + TWHWL (5) Guaranteed but not tested.
TAVAVW
ADDRESS
TAVWH TAVWL TWHWL TWLWH TWHAX
NWE
TWLQZ TWHQX
DATA OUT
HIGH IMPEDANCE
TDVWH DATA VALID TSLWH
TWHDX
DATA IN
NCS
TEHWH
CE
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HX6356
DYNAMIC ELECTRICAL CHARACTERISTICS
Read Cycle The RAM is asynchronous in operation, allowing the read cycle to be controlled by address, chip select (NCS), or chip enable (CE) (refer to Read Cycle timing diagram). To perform a valid read operation, both chip select and output enable (NOE) must be low and chip enable and write enable (NWE) must be high. The output drivers can be controlled independently by the NOE signal. Consecutive read cycles can be executed with NCS held continuously low, and with CE held continuously high, and toggling the addresses. For an address activated read cycle, NCS and CE must be valid prior to or coincident with the activating 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. To control a read cycle with NCS, all addresses and CE must be valid prior to or coincident with the enabling NCS edge transition. Address or CE 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. To control a read cycle with CE, all addresses and NCS must be valid prior to or coincident with the enabling CE edge transition. Address or NCS edge transitions can occur later than the specified setup times to CE; however, the valid data access time will be delayed. Any address edge transition which occurs during the time when CE 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 TELQZ time following a disabling CE edge transition. Write Cycle The write operation is synchronous with respect to the address bits, and control is governed by write enable (NWE), chip select (NCS), or chip enable (CE) edge transitions (refer to Write Cycle timing diagrams). To perform a write operation, both NWE and NCS must be low, and CE must be high. Consecutive write cycles can be performed with NWE or NCS held continuously low, or CE held continuously high. At least one of the control signals must transition to the opposite state between consecutive write operations. The write mode can be controlled via three different control signals: NWE, NCS, and CE. All three modes of control are similar except the NCS and CE controlled modes actually disable the RAM during the write recovery pulse. Both CE and NCS fully disable 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 CE must be held high for at least TWLWH/TSLSH/ TEHEL 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. For consecutive write operations, write pulses must be separated by the minimum specified TWHWL/TSHSL/TELEH time. Address inputs must be valid at least TAVWL/TAVSL/TAVEH time before the enabling NWE/NCS/CE edge transition, and must remain valid during the entire write time. A valid data overlap of write pulse width time of TDVWH/TDVSH/TDVEL, and an address valid to end of write time of TAVWH/ TAVSH/TAVEL also must be provided for during the write operation. Hold times for address inputs and data inputs with respect to the disabling NWE/NCS/CE edge transition must be a minimum of TWHAX/TSHAX/TELAX time and TWHDX/TSHDX/TELDX time, respectively. The minimum write cycle time is TAVAV.
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HX6356
TESTER AC TIMING CHARACTERISTICS
TTL I/O Configuration
3V
CMOS I/O Configuration
VDD-0.5 V
Input Levels*
1.5 V 0V 0.5 V
VDD/2
1.5 V
VDD/2
Output Sense Levels
High Z
VDD-0.4V 0.4 V 3.4 V 2.4 V
High Z
VDD-0.4V 0.4 V 3.4 V High Z 2.4 V
High Z
High Z = 2.9V
High Z = 2.9V
* Input rise and fall times <1 ns/V
QUALITY AND RADIATION HARDNESS ASSURANCE
Honeywell maintains a high level of product integrity through process control, utilizing statistical process control, a complete "Total Quality Assurance System," a computer data base process performance tracking system, and a radiation-hardness assurance strategy. 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 by engineering in reliability, starting with process development and continuing through product qualification and screening. need to create detailed specifications and offer benefits of improved quality and cost savings through standardization.
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 RICMOSTM 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. In addition, the reliability of the RICMOSTM process and product in a military environment was monitored by testing irradiated and non-irradiated circuits in accelerated dynamic life test conditions. Packages are qualified for product use after undergoing Groups B & D testing as outlined in MIL-STD-883, TM 5005, Class S. The product is qualified by following a screening and testing flow to meet the customer's requirements. Quality conformance testing is performed as an option on all production lots to ensure the ongoing reliability of the product.
SCREENING LEVELS
Honeywell offers several levels of device screening to meet your system needs. "Engineering Devices" are available with limited performance and screening for breadboarding and/or 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 9
HX6356
PACKAGING
The 32K x 8 SRAM is offered in two custom 36-lead flat packs (FP). The packages are constructed of multilayer ceramic (Al2O3) and feature internal power and ground planes. The 36-lead flat packs also feature a non-conductive ceramic tie bar on the lead frame. The tie bar allows electrical testing of the device, while preserving the lead integrity during shipping and handling, up to the point of lead forming and insertion. On the bottom braze 36-lead FP, ceramic chip capacitors can be mounted to the package by the user to maximize supply noise decoupling and increase board packing density. These capacitors attach directly to the internal package power and ground planes. This design minimizes resistance and inductance of the bond wire and package. All NC (no connect) pins should be connected to VSS to prevent charge build up in the radiation environment.
36-LEAD FP PINOUT
VSS VDD A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 NC VDD VSS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Top View
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
VSS VDD NWE CE A13 A8 A9 A11 NOE A10 NCS DQ7 DQ6 DQ5 DQ4 DQ3 VDD VSS
36-LEAD FLAT PACK--Bottom Braze (22018131-001)
E
1
22018131-001
Top View
b (width)
D G
e (pitch)
H
L
L
Ceramic Body
J A
Kovar Lid [3]
NonConductive Tie-Bar
0.004 N M
I
C
X VDD VSS
Optional Capacitors
VDD
VSS
S A b C D E e F G H I J L
All dimensions are in inches [1]
0.095 0.014 0.008 0.002 0.005 to 0.0075 0.650 0.010 0.630 0.007 0.025 0.002 [2] 0.425 0.005 [2] 0.525 0.005 0.135 0.005 0.030 0.005 0.080 typ. 0.285 0.015 M N O P R S T U V W X Y 0.008 0.003 0.050 0.010 0.090 ref 0.015 ref 0.075 ref 0.113 0.010 0.050 ref 0.030 ref 0.080 ref 0.005 ref 0.450 ref 0.400 ref
F
Y
1
1
O V
W P R T U
[1] Parts delivered with leads unformed [2] At tie bar [3] Lid tied to VSS
10
HX6356
36-LEAD FLAT PACK--Top Braze (22019627-001)
E
1
22019627-001
Top View
b (width)
D G
e (pitch) All dimensions are in inches H L C Ceramic Body Kovar Lid [3] Kovar Lead [1] M I Non-Conductive Tie-Bar 1 22019627-001 S A b C D E e F G H I J L M S 0.085 0.010 0.008 0.002 0.005 to 0.0075 0.650 0.010 0.630 0.007 0.025 0.002 [2] 0.425 0.005 [2] 0.525 0.005 0.135 0.005 0.030 0.005 0.080 typ. 0.285 0.015 0.009 0.003 0.113 0.010
J
A
[1] Parts delivered with leads unformed [2] At tie bar [3] Lid tied to VSS
Bottom View
F
Pin 1 Index Bar
DYNAMIC BURN-IN DIAGRAM
STATIC BURN-IN DIAGRAM
VSS
F16 F7 F6 F5 F4 F3 F2 F8 F13 F14 F1 F1 F1
R R R R R R R R R R R R R
NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
VSS VDD A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQO DQ1 DQ2 VDD VSS
VSS VDD NWE CE A13 A8 A9 A11 NOE A10 NCS DQ7 DQ6 DQ5 DQ4 DQ3 VDD VSS
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
VDD
R R R R R R R R R R R R R R
VSS
R R R R R R R R R R R R R
F0 F17 F15 F12 F11 F10 F17 F9 F17 F1 F1 F1 F1 F1
NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
VSS VDD A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQO DQ1 DQ2 VDD VSS
VSS VDD NWE CE A13 A8 A9 A11 NOE A10 NCS DQ7 DQ6 DQ5 DQ4 DQ3 VDD VSS
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
VDD
R R R R R R R R R R R R R R
VSS VDD = 5.6V, R 10 K, VIH = VDD, VIL = VSS Ambient Temperature 125 C, F0 100 KHz Sq Wave Frequency of F1 = F0/2, F2 = F0/4, F3 = F0/8, etc.
32K x 8 SRAM
VSS
VDD = 5.5V, R 10 K Ambient Temperature 125 C
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32K x 8 SRAM
HX6356
ORDERING INFORMATION (1) H X 6356
PART NUMBER
X
S
SCREEN LEVEL V=QML Class V Q=QML Class Q S=Class S B=Class B E=Engr Device (2)
H
C
INPUT BUFFER TYPE C=CMOS Level T=TTL Level
PROCESS X=SOI SOURCE H=HONEYWELL
PACKAGE DESIGNATION X=36-Lead FP (Bottom Braze) P=36-Lead FP (Top Braze) K=Known Good Die - = Bare Die (No Package)
TOTAL DOSE HARDNESS R=1x105 rad(SiO2) F=3x105 rad(SiO2) H=1x106 rad(SiO2) N=No Level Guaranteed
(1) Orders may be faxed to 612-954-2051. Please contact our Customer Logistics Department at 612-954-2888 for further information. (2) Engineering Device description: Parameters are tested from -55 to 125C, 24 hr burn-in, no radiation guaranteed. Contact Factory with other needs.
To learn more about Honeywell Solid State Electronics Center, visit our web site at http://www.ssec.honeywell.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.
Helping You Control Your World
900155 Rev. A 6-97
12

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