DS8024-RJX+ / Maxim Integrated Products

DS8024-RJX+ Datasheet with Chat AI

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Part No.	DS8024-RJX+
Manufacturer	MAXIM
Size	356 Kbytes
Pages	15 pages
Description	Smart Card Interface

Datasheet Summary with AI

1. General DC Operating Conditions (VDD = 3.3V, TA = +25°C)

️· Supply Voltage (VDD): Not explicitly stated, but the conditions assume 3.3V.
️· Operating Temperature (TA): +25°C (standard temperature for testing)

2. Clock and Data Signal Parameters

️· Maximum Clock Frequency (fIOMAX): 1 MHz
️· I/O Falling Edge Delay (tD(IO-IOIN)): 200 ns
️· Pullup Pulse Active Time (tPU): 100 ns
️· Input Capacitance (CI): 10 pF

3. I/O, AUX1, AUX2 Pins (Active & Inactive)

️· Output Low Voltage (VOL): 0V to 0.3V
️· Output High Voltage (VOH): 0.75 x VDD up to VDD + 0.1V. (So, roughly 2.475V to 3.43V)
️· Output Rise/Fall Time (tOT): 0.1 μs
️· Input Low Voltage (VIL): -0.3V to +0.8VDD
️· Input High Voltage (VIH): 1.5VDD
️· Input Low Current (IIL): 700 μA (at VIL = 0V)
️· Input High Current (IIH): 20 μA (at VIH = VDD)
️· Integrated Pullup Resistor (RPU): 9-11 kΩ (19 kΩ in one instance)
️· Current When Pullup Active (IPU): -1 mA

4. I/OIN, AUX1IN, AUX2IN Pins (General)

️· Output Low Voltage (VOL): 0V to 0.3V
️· Output High Voltage (VOH): 0.75 x VDD up to VDD + 0.1V.
️· Output Rise/Fall Time (tOT): 0.1 μs
️· Input Low Voltage (VIL): -0.3V to +0.8VDD
️· Input High Voltage (VIH): 1.5VDD
️· Input Low Current (IIL): 600 μA (at VIL = 0V)
️· Input High Current (IIH): 10 μA (at VIH = VDD)
️· Integrated Pullup Resistor (RPU): 9-11 kΩ
️· Current When Pullup Active (IPU): -1 mA

Key Takeaways and Observations:

️· Pullup Resistors: These pins have integrated pullup resistors, which is important for signal integrity and power saving when the pins are not actively driven.
️· Voltage Levels: The input/output voltage levels are tightly coupled to the supply voltage (VDD), making the interface relatively straightforward to interface with.
️· Timing Requirements: The timing specifications (tD(IO-IOIN), tPU, tIT) are critical for ensuring reliable communication.
️· Input Currents: The specified input currents, both high and low, define how much current the interface is consuming.
️· Note 3: Keep in mind that "Note 3" will clarify some of the testing and operational conditions.