73S1210F-68IMR/F Maxim Integrated Products, 73S1210F-68IMR/F Datasheet - Page 51
73S1210F-68IMR/F
Manufacturer Part Number
73S1210F-68IMR/F
Description
IC SMART CARD READER 68-QFN
Manufacturer
Maxim Integrated Products
Datasheet
1.73S1210F-44MFPC.pdf
(126 pages)
Specifications of 73S1210F-68IMR/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
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
73S1210F-68IMR/F
Manufacturer:
ST
Quantity:
12 000
DS_1210F_001
1.7.10 Analog Voltage Comparator
The 73S1210F includes a programmable comparator that is connected to the ANA_IN pin. The
comparator can be configured to trigger an interrupt if the input voltage rises above or falls below a
selectable threshold voltage. The comparator control register should not be modified when the analog
interrupt (ANAIEN bit in the
generated when modifying the threshold. The comparator has a built-in hysteresis to prevent the
comparator from repeatedly responding to low-amplitude noise. This hysteresis is approximately 20mV.
Interrupt control is handled in the
Analog Compare Control Register (ACOMP): 0xFFD0 0x00
Rev. 1.4
ACOMP.7
ACOMP.6
ACOMP.5
ACOMP.4
ACOMP.3
ACOMP.2
ACOMP.1
ACOMP.0
Bit
MSB
ANALVL
ANALVL
ONCHG
Symbol
CMPEN
TSEL.2
TSEL.1
TSEL.0
CPOL
–
–
INT6Ctl
When read, indicates whether the input level is above or below the
threshold. This is a real time value and is not latched, so it may change
from the time of the interrupt trigger until read.
If set, the Ana_interrupt is invoked on any change above or below the
threshold, bit 4 is ignored.
If set = 1, Ana_interrupt is invoked when signal rises above selected
threshold. If set = 0, Ana_interrupt is invoked when signal goes below
selected threshold (default).
Enables power to the analog comparator. 1 = Enabled. 0 = Disabled
(default).
Sets the voltage threshold for comparison to the voltage on pin ANA_IN.
Thresholds are as follows:
TSEL.2
0
0
0
0
1
1
1
1
ONCHG
INT6Ctl
register) is enabled to guard against any false interrupt that might be
Table 54: The ACOMP Register
register.
TSEL.1
0
0
1
1
0
0
1
1
CPOL
CMPEN TSEL.2
TSEL.0
0
1
0
1
0
1
0
1
Function
1.00V
1.24V
1.40V
1.50V
1.75V
2.00V
2.30V
2.50V
Voltage Threshold
TSEL.1
73S1210F Data Sheet
TSEL.0
LSB
51