73S1210F-68IM/F Maxim Integrated Products, 73S1210F-68IM/F Datasheet - Page 66

• Manufacturer Part Number: 73S1210F-68IM/F
• Description: IC SMART CARD READER 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73S1210F-68IM/F

• Core Processor: 80515
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: I²C, SmartCard, UART/USART
• Peripherals: LED, POR, WDT
• Number Of I /o: 8
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

73S1210F Data Sheet
Keypad Scan Time Register (KSIZE): 0xD5  0x00
This register is not applicable when HWSCEN is not set. Unused row inputs should be connected to
VDD.
66
MSB
KSIZE.7
KSIZE.6
KSIZE.5
KSIZE.4
KSIZE.3
KSIZE.2
KSIZE.1
KSIZE.0
Bit
–
ROWSIZ.2
ROWSIZ.1
ROWSIZ.0
COLSIZ.2
COLSIZ.1
COLSIZ.0
Symbol
–
–
–
ROWSIZ.2 ROWSIZ.1 ROWSIZ.0 COLSIZ.2 COLSIZ.1 COLSIZ.0
Defines the number of rows in the keypad. Maximum number is 6 given
the number of row pins on the package. Allows for a reduced keypad size
for scanning.
Defines the number of columns in the keypad. Maximum number is 5
given the number of
keypad size for scanning.
Table 68: The KSIZE Register
column pins on the package. Allows for a reduced
Function
DS_1210F_001
LSB
Rev. 1.4