81840 MAXWELL | Alldatasheet
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128 Channel Multiplexer
©2021 Maxwell Technologies All rights reserved.
06.17.02 REV 5
FEATURES:
- 128 channel multiplexer, MCM Package: - 256 pin RAD-PAK® quad flat pack Total dose hardness: - > 300 krads(Si) - Dependent upon orbit Excellent Single Event Effects: SEL: > 110 MeV-cm 2/mg SEU: > 110 MeV-cm2/mg DESCRIPTION: Maxwell Technologies’ 81840 high-performance 128-channel multiplexer features a typical 300 krad (Si) total dose tolerance. This datasheet defines the design, performance, and test require- ments for a hermetic, telemetry multiplexer, multi-chip-module (MCM), utilizing chip and wire technology to be used in space systems. The 81840 is intended for use in the environments encountered by high reliability spacecraft applications. The pat- ented radiation-hardened R AD-PAK® technology incorporates radi- ation shielding in the microcircuit package. Capable of surviving in-space environment, the 81840 is ideal for satellite, spacecraft, and space probe missions. It is available up to Class K screening. 16:1 1840A 16:1 1840A 16:1 1840A 16:1 1840A 16:1 1840A 16:1 1840A 16:1 1840A (8 TOTAL 1840A’s) GRND GRND GRNDGRND OUT IN IN OUT 8 8 GRND 8 5 GRND 8 5 IN OUT GRND 8 5 IN NEGATIVE OUTPUT POSITIVE OUTPUT OUT 4 4 84 ADDRESS ENABLE
128 TOTAL
(+5V) GRND ADDRESS ENABLE SPARE OUTPUT ADDRESS ENABLE IN IN ADDRESS ENABLE COMMON TO ALL INPUT MUX’s CLAMP/ PRECHARGE ADDRESS ENABLE CASCADE INPUTBYPASS (+15V) (-15V) IN IN See page 2 for pin assignments. 81840
2All data sheets are subject to change without notice ©2021 Maxwell Technologies All rights reserved.
128 Channel Multiplexer 81840
81840 Pinout Diagram
TABLE 1. PINOUT DESCRIPTION
216 H1EN
217 BYPASS
218 SP2EN
224 SP1EN
229 CASEN
235 L1EN
252 SP1OUT
251 SP2OUT
253 NEGATIVE
254 POSITIVE
255 GREN
TABLE 2. 81840 A BSOLUTE M AXIMUM R ATINGS1,2,3,4
- The LMUX MCM is designed to operate with power supply voltages ranging
- The maximum voltage each input AIN(128:1) may see without damage is
+35V to -35V with respect to ground.
- Stresses above the absolute maximum rating may cause permanent damage
formance and affect reliability. A = 25°C unless otherwise specified. TABLE 3. 81840 AC ELECTRICAL CHARACTERISTICS
- Controlled by design, not directly tested.
TABLE 4. DELTA LIMITS TABLE 5. 81840 ELECTRICAL TEST TABLE
TABLE 5. 81840 ELECTRICAL TEST TABLE
- Current limit set to 10 µ A during test.
TABLE 5. 81840 ELECTRICAL TEST TABLE
8All data sheets are subject to change without notice ©2021 Maxwell Technologies All rights reserved.
- For V IH and VIL measurements, VREF will equal 4.5V and 5.5V. 3. Unless otherwise specified: - V- = -15.0V - V+ = 15.0V - V REF = 5.0V - V AH = 4.0V - V AL = 0.8V
FIGURE 1. 81840 ADDRESS DECODING SCHEME
10All data sheets are subject to change without notice ©2021 Maxwell Technologies All rights reserved. 256-PIN RAD-PAK® QUAD FLAT PACKAGE SYMBOL DIMENSIONS MIN NOM MAX A .302 .329 .356 b .005 .007 .009 c .005 .006 .007 D 1.438 1.450SQ 1.462 D1 1.260BSC e .020BSC L 3.010 3.040 3.070 L1 2.970 3.000 3.030 L2 2.178 2.200 2.222 A1 .253 .275 .297 N 256 F1 1.215 1.220 1.225 F4 1.215 1.220 1.225
11All data sheets are subject to change without notice ©2021 Maxwell Technologies All rights reserved. Important Notice: These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. The specifications presented within these data sheets represent the latest and most accurate information available to date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no responsibility for the use of this information. Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems without express written approval from Maxwell Technologies. Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Tech- nologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
12All data sheets are subject to change without notice ©2021 Maxwell Technologies All rights reserved. Feature Option Details81840 RP Q X Screening Flow Package Radiation Feature Base Product Nomenclature Multi Chip Module (MCM) K = Maxwell Class K H = Maxwell Class H I = Industrial (testing @ -55°C, +25°C, +125°C) E = Engineering (testing @ +25° Q = Quad Flat Pack RP = RAD-PAK® package