AT83C24 ATMEL Corporation, AT83C24 Datasheet - Page 20

• Manufacturer Part Number: AT83C24
• Description: Smart Card Reader Interface with Power Management
• Manufacturer: ATMEL Corporation

Then the AT83C24 resets if RESET pin stays low.
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If EVCC and VCC have the same value, then they should be connected:
The AT83C24 integrates an internal 3V regulator to feed its logic from the VCC sup-
ply. The bit powermon allows the user to select if the internal PFD monitors VCC or
the internal regulated 3V. If the PFD monitors VCC (POWERMON bit=0), a deacti-
vation is performed if VCC falls below VPFDP (see VPFDP value in the datasheet).
Same deactivation is performed if the internal 3V falls below VPFDP and POWER-
MON bit = 1.
AT83C24
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4234E–SCR–09/04