AT89LP2052-16XU Atmel, AT89LP2052-16XU Datasheet - Page 7

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

Specifications of AT89LP2052-16XU

• 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-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Ease of Migration
System Integration
7
The third factor, the supply Voltage (Vcc), can have the greatest impact on power due to
the exponential relationship; however, it is often application dependent. For those
applications that are flexible in choice of operating voltage, the AT89LP family offers
operation down to 2.4V at speeds of up to 20 MHz.
A comparison between the power consumption of the classic AT89S52 and the single-
cycle AT89LP52 is listed in Table 1.
Table 1.
Atmel AT89LP microcontrollers are built around an enhanced 8051 CPU that delivers more
performance and yet remains 100% fully binary compatible with the industry standard
MCS®51 instruction set. Keeping the same instruction set allows legacy code already
written for the 8051 architecture to run on an AT89LP. The large body of existing code
libraries will work with an AT89LP microcontroller. Furthermore, the Special Function
Register (SFR) addresses and bit assignments are compatible with current Atmel 8051
microcontrollers for greater software portability.
In some cases software compatibility alone is not sufficient when moving to a new device.
The 8051 is used in a wide range of applications with many different requirements and
firmware developers can be very creative. For example, it is common on the 8051 to use
software delay loops and bit banging where the timing of the instructions is also critical.
Starting with the AT89LP52, Atmel has introduced a patent-pending 12-clock compatibility
mode for its AT89LP family. Devices with this feature can operate either as a single-cycle
8051 for higher performance or as a classic 12-clock 8051 with instruction timing that is
backwards compatible with older devices. The AT89LP52 in compatibility mode, for
example, can replace an AT89S52 with no software changes. Of course the developer is
always free to take advantage of new features and improved performance.
Atmel AT89LP microcontrollers are built around an enhanced single-cycle 8051 CPU
paired with on-chip RAM and a range of integrated peripherals. Peripherals range from
8051 standards like timers and UARTs to system supervisory functions, advanced analog
functions and Controller Area Network (CAN) interfaces. The high level of system
integration on AT89LP devices provides reduced system cost, lower power consumption
and faster time-to-market.
Active Supply Current @ 12MHz, 5V
Idle Supply Current @ 12 MHz, 5V
Power-down Current @ 5V
MIPS (maximum) @ 12 MHz
mA per MIPS
Power Comparison of AT89S52 and AT89LP52
A
TMEL
’
S
S
INGLE
AT89S52
6.5 mA
25 mA
50 uA
25
1
C
YCLE
8051 C
ORE
—AT89LP F
4088C –8051 –02/11
AT89LP52
7 mA
3 mA
2 uA
0.58
12
AMILY