AT89LP52-20AU Atmel, AT89LP52-20AU Datasheet - Page 93

• Manufacturer Part Number: AT89LP52-20AU
• Description: IC MCU 8051 8K FLASH SPI 44TQFP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP52-20AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 8KB (8K 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: 44-TQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: Serial
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

18.3
18.3.1
3709B–MICRO–12/10
Typical Characteristics
Supply Current (Internal Oscillator)
The following charts show typical behavior. These figures are not tested during manufacturing.
All current consumption measurements are performed with all I/O pins configured as quasi-bidi-
rectional (with internal pull-ups). A square wave generator with rail-to-rail output is used as an
external clock source for consumption versus frequency measurements.
Figure 18-1. Active Supply Current vs. Vcc (1.8432 MHz Internal Oscillator)
1.25
1.00
0.75
0.50
0.25
3.0
2.5
2.0
1.5
1.0
2.0
2.0
2.5
2.5
1.8432 MHz Internal Oscillator
Active Supply Current vs. Vcc
3.0
3.0
Compatibility Mode
Fast Mode
3.5
3.5
Vcc (V)
Vcc (V)
AT89LP51/52 - Preliminary
4.0
4.0
4.5
4.5
5.0
5.0
5.5
5.5
85C
-40C
25C
85C
-40C
25C
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