Circuits-dat/circuits-dat.md
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# circuits-dat
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-- [[logic-dat]] - [[logic-gate-dat]] - [[buffer-dat]] - [[logic-level-shifter-dat]]
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+- [[logic-dat]] - [[logic-gate-dat]] - [[buffer-dat]] - [[logic-level-shifter-dat]] - [[multiplexer-dat]]
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- [[74xx-dat]]
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- [[Vref-dat]]
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-
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+- [[Multiplexer-dat]]
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Circuits-dat/logic-dat/multiplexer-dat/multiplexer-dat.md
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![](2025-10-15-17-30-54.png)
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-74HC138; 74HCT138 - 3-to-8 line decoder/demultiplexer; inverting
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+74HC138; 74HCT138 - 3-to-8 line decoder/demultiplexer; inverting
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+ADG1404 - 1.5 Ω On Resistance, ±15 V/12 V/±5 V, 4:1, iCMOS Multiplexer
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+## ref
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+- [[circuits-dat]]
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Tech-dat/memory-dat/eeprom-dat/eeprom-dat.md
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- [[MPC1073-DAT]]
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+## unsort
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+- [[Xilinx-dat]] - XCF16PVOG48C == [[FPGA-dat]] - Configuration Memory Flash 16Mb PROM (ST Micro), Lead Free
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## ref
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- [[memory-dat]] - [[EEPROM]]
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Tech-dat/voltage-reference-dat/voltage-reference-dat.md
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- Voltage References | LM336Z25 - 2.49 V, 2% Programmable Shunt Regulator
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+## voltage reference
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+- ADR435BRZ - Ultralow Noise XFET Voltage References with Current Sink and Source Capability
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+- [[TL431-dat]] - [[voltage-reference-dat]]
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+- [[supervisory-dat]]
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+| Feature | Voltage Reference | Supervisory IC |
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+| ------------------------ | ------------------------- | ---------------------------------- |
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+| Purpose | Provide precise voltage | Monitor power & generate reset |
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+| Output type | Analog voltage | Digital reset |
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+| Accuracy | Very high (ppm/°C) | Moderate (1–3%) |
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+| Noise | Very low | Not relevant |
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+| Used in | Analog precision circuits | MCU, CPU, digital systems |
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+| Extra functions | None | Watchdog, manual reset, sequencing |
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+| Affects system start-up? | No | Yes |
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## ref
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- [[tech-dat]]
power-dat/power-dat.md
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- [[Power-distribution-dat]]
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-- [[supervisory-dat]] - [[power-switch-dat]]
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+- [[supervisory-dat]] - [[power-switch-dat]] - [[voltage-reference-dat]]
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## power design workflow
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## ref
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- [[power]]
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