Rainbow Electronics MAX7359 - Manual (Page 5)

MAX7359
2-Wire Interfaced Low-EMI
Key Switch Controller/GPO
_______________________________________________________________________________________ 5
64kHz
OSCILLATOR
POR
BUS
TIMEOUT
I 2 C
INTERFACE
CONTROL
REGISTERS
FIFO
KEY SCAN
CURRENT
SOURCE
COLUMN
DRIVES
OPEN-
DRAIN
ROW
DRIVES
COLUMN ENABLE
GPO ENABLE
ROW ENABLE
CURRENT DETECT
CL0
CL1
CL2*
CL3*
CL4*
CL5*
CL6*
CL7*
RO0
RO1
RO2
RO3
RO4
RO5
RO6
RO7
INT
SDA
SCL
*GPO
MAX7359
Functional Block Diagram