AT89LP2052-16XI Atmel, AT89LP2052-16XI Datasheet - Page 5
AT89LP2052-16XI
Manufacturer Part Number
AT89LP2052-16XI
Description
IC 8051 MCU FLASH 2K 20TSSOP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP2052-20PU.pdf
(94 pages)
Specifications of AT89LP2052-16XI
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
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89LP2052-20XI
AT89LP2052-20XI
AT89LP2052-20XI
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5.2
3547J–MICRO–10/09
Data Memory
Figure 5-1.
The AT89LP2052/LP4052 contains 256 bytes of general SRAM data memory plus 128 bytes of
I/O memory. The lower 128 bytes of data memory may be accessed through both direct and
indirect addressing. The upper 128 bytes of data memory and the 128 bytes of I/O memory
share the same address space (see
be accessed using indirect addressing. The I/O memory can only be accessed through direct
addressing and contains the Special Function Registers (SFRs). The lowest 32 bytes of data
memory are grouped into 4 banks of 8 registers each. The RS0 and RS1 bits (PSW.3 and
PSW.4) select which register bank is in use. Instructions using register addressing will only
access the currently specified bank. The AT89LP2052/LP4052 does not support external data
memory.
Figure 5-2.
Upper
Lower
128
128
FFH
7FH
80H
0
0000
07FF
Program Memory Map
Data Memory Map
By Direct and
Addressing
Addressing
By Indirect
Accessible
Accessible
Program Memory
Indirect
Only
AT89LP2052
Figure
5-2). The upper 128 bytes of data memory may only
Addressing
Accessible
By Direct
0000
0FFF
Special
Function
Registers
AT89LP2052/LP4052
Program Memory
AT89LP4052
FFH
80H
Ports
Status and
Control Bits
Timers
Registers
Stack Pointer
Accumulator
(Etc.)
5
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