Datasheet

TCA8418E
www.ti.com SCPS222B –MAY 2010–REVISED SEPTEMBER 2010
TERMINAL FUNCTIONS
TERMINAL
NO.
TYPE DESCRIPTION
NAME
WCSP
(YFP)
A1 ROW7 I/O GPIO or row 7 in keypad matrix
B1 ROW6 I/O GPIO or row 6 in keypad matrix
C1 ROW5 I/O GPIO or row 5 in keypad matrix
D1 ROW4 I/O GPIO or row 4 in keypad matrix
E1 ROW3 I/O GPIO or row 3 in keypad matrix
A2 ROW2 I/O GPIO or row 2 in keypad matrix
C2 ROW1 I/O GPIO or row 1 in keypad matrix
D2 ROW0 I/O GPIO or row 0 in keypad matrix
E2 COL0 I/O GPIO or column 0 in keypad matrix
A3 COL1 I/O GPIO or column 1 in keypad matrix
B3 COL2 I/O GPIO or column 2 in keypad matrix
C3 COL3 I/O GPIO or column 3 in keypad matrix
D3 COL4 I/O GPIO or column 4 in keypad matrix
E3 COL5 I/O GPIO or column 5 in keypad matrix
A4 COL6 I/O GPIO or column 6 in keypad matrix
B4 COL7 I/O GPIO or column 7 in keypad matrix
C4 COL8 I/O GPIO or column 8 in keypad matrix
D4 COL9 I/O GPIO or column 9 in keypad matrix
E4 GND – Ground
Active-low reset input. Connect to V
CC
through a pullup resistor, if no active connection is
A5 RESET I
used.
B5 V
CC
Pwr Supply voltage of 1.65 V to 3.6 V
C5 SDA I/O Serial data bus. Connect to V
CC
through a pullup resistor.
D5 SCL I Serial clock bus. Connect to V
CC
through a pullup resistor.
E5 INT O Active-low interrupt output. Open drain structure. Connect to V
CC
through a pullup resistor.
Active-low interrupt hardware output for 3-key simultaneous press-event. Open drain structure.
B2 CAD_INT O
Connect to V
CC
through a pullup resistor.
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