AT89LP2052-20SU Atmel, AT89LP2052-20SU Datasheet - Page 82

• Manufacturer Part Number: AT89LP2052-20SU
• Description: IC 8051 MCU FLASH 2K 20SOIC
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP2052-20SU

• 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: 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-SOIC (7.5mm Width)
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Package: 20SOIC W
• Device Core: 8051
• Family Name: AT89
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Figure 24-4. SPI Slave Timing (CPHA = 1)
24.4
Figure 24-5. External Clock Drive Waveform
Table 24-3.
82
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
External Clock Drive
AT89LP2052/LP4052
External Clock Drive Parameters
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
(CPOL = 0)
(CPOL = 1)
MISO
MOSI
SCK
SCK
SS
Min
50
12
12
0
V
CC
= 2.4V to 5.5V
Max
20
5
5
3547J–MICRO–10/09
Units
MHz
ns
ns
ns
ns
ns