AT89LP428-20PU Atmel, AT89LP428-20PU Datasheet - Page 73

• Manufacturer Part Number: AT89LP428-20PU
• Description: MCU 8051 4K FLASH SPI 28PDIP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP428-20PU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 30
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Processor Series: AT89x
• Core: 8051
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Figure 13-12. Multi-Phasic PWM Output Stage
Figure 13-13. Multi-Phasic PWM Modes
3654A–MICRO–8/09
1
0
1
1
PHS = 001B
PHSD
PHSD
EN
EN
EN
EN
CCC
CCD
CCC
CCD
CCC
CCD
CCC
CCD
CCC
CCD
CCA
CCB
CCA
CCB
CCA
CCB
CCA
CCB
CCA
CCB
CCA
CCB
CCC
CCD
1
0
0
1
PHS = 010B
EN
EN
EN
EN
CCA
CCB
CCC
CCD
PHS = 000B
PHS = 001B
PHS = 010B
PHS = 011B
PHS = 100B
1
0
0
0
PHS = 011B
EN
EN
EN
EN
CCA
CCB
CCC
CCD
1
0
1
0
AT89LP428/828
PHS = 100B
EN
EN
EN
EN
CCA
CCB
CCC
CCD
73