ADP5589 Analog Devices, ADP5589 Datasheet - Page 14

• Manufacturer Part Number: ADP5589
• Description: Keypad Decoder and I/O Expansion
• Manufacturer: Analog Devices

Specifications of ADP5589

• Vin Range: 1.8 to 3.0V
• Number Of I/os: 19
• Application: Mobil I-0 Exp-Keybd Cont,Mobil I-O Expander
• Qwerty Keypad: Yes
• Other Functions: I2C I/O & register
• Function Flag: Mobil I-O
• Package: 24-Lead LFCSP,25-Ball WLCSP

ADP5589
START MASK TIMER
EVENT_INT = 1
SET
YES
TIMER EXPIRED?
YES
MASK
TIMER ENABLED?
Figure 16. Unlock Sequence
DETECTED?
NO
EVENT
MASK
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YES
NO
START MASK TIMER
START MASK TIMER
EVENT_INT = 1
EVENT_INT = 1
NO
SET
SET
LOCK_STAT = 0
YES
LOCK_STAT = 1
LOCK_STAT = 1
YES
TIMER EXPIRED?
TIMER EXPIRED?
YES
MASK
MASK
YES
NO
NO
START UNLOCK TIMER
TIMER ENABLED?
TIMER ENABLED?
UNLOCK EVENT?
UNLOCK EVENT
DETECTED?
REQUIRED?
DETECTED?
NO
ENABLED?
EXPIRED?
NO
SECOND
LOCKED
UNLOCK
SECOND
UNLOCK
UNLOCK
UNLOCK
EVENT?
EVENT
EVENT
TIMER
MASK
FIRST
TIMER
MASK
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
NO