PT6311-LQ PTC [Princeton Technology Corp], PT6311-LQ Datasheet - Page 10

• Manufacturer Part Number: PT6311-LQ
• Description: VFD Driver/Controller IC
• Manufacturer: PTC [Princeton Technology Corp]

PT6311 KEY MATRIX & KEY INPUT DATA STORAGE RAM
PT6311 Key Matrix consists of 12 x 4 arrays as shown below:
Each data inputted by each key are stored as follows. They are read by a READ Command, starting from the last
significant bit. When the most significant bit of the data (SG12, b7) has been read, the least significant bit of the next
data (SG1, b0) is read.
V3.2
K2
K3
K4
K1
K1…………………K4
b0………………….b3
SG11/KS11
SG1/KS1
SG3/KS3
SG5/KS5
SG7/KS7
SG9/KS9
K1…………………K4
b4………………….b7
SG10/KS10
SG12/KS12
SG2/KS2
SG4/KS4
SG6/KS6
SG8/KS8
10
Reading
Sequence
November 2009
PT6311