AT89LP2052-16PU Atmel, AT89LP2052-16PU Datasheet - Page 50

• Manufacturer Part Number: AT89LP2052-16PU
• Description: IC 8051 MCU FLASH 2K 20DIP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP2052-16PU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Table 20-1.
50
Symbol
CIDL
CF
CEN
CM [2:0]
ACSR = 97H
Not Bit Addressable
Bit
AT89LP2052/LP4052
Comparator Interrupt Mode
Function
Comparator Idle Enable. If CIDL = 1 the comparator will continue to operate during Idle mode. If CIDL = 0 the
comparator is powered down during Idle mode. The comparator is always shut down during Power-down mode.
Comparator Interrupt Flag. Set when the comparator output meets the conditions specified by the CM [2:0] bits and CEN
is set. The flag must be cleared by software. The interrupt may be enabled/disabled by setting/clearing bit 6 of IE.
Comparator Enable. Set this bit to enable the comparator. Clearing this bit will force the comparator output low and
prevent further events from setting CF.
ACSR
2
0
0
0
0
1
1
1
1
–
7
1
0
0
1
1
0
0
1
1
– Analog Comparator Control & Status Register
0
0
1
0
1
0
1
0
1
Interrupt Mode
Negative (Low) level
Positive edge
Toggle with debounce
Positive edge with debounce
Negative edge
Toggle
Negative edge with debounce
Positive (High) level
–
6
CIDL
5
CF
4
CEN
3
CM2
2
Reset Value = XXX0 0000B
CM1
1
3547J–MICRO–10/09
CM0
0