AT89LP2052-20SU Atmel, AT89LP2052-20SU Datasheet - Page 28
![IC 8051 MCU FLASH 2K 20SOIC](/photos/6/80/68042/453-20-soic_sml.jpg)
AT89LP2052-20SU
Manufacturer Part Number
AT89LP2052-20SU
Description
IC 8051 MCU FLASH 2K 20SOIC
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP2052-20PU.pdf
(94 pages)
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
.
Table 16-2.
28
Gate
C/T
M1
M0
TMOD = 89H
Not Bit Addressable
AT89LP2052/LP4052
Gating control: when set Timer/Counter x is enabled only
while INTx pin is high and TRx control pin is set. When
cleared, Timer x is enabled whenever TRx control bit
is set.
Timer or Counter Selector: cleared for Timer operation
(input from internal system clock). Set for Counter
operation (input from Tx input pin).
Mode bit 1
Mode bit 0
M1
0
0
1
1
1
Timer SFR
TCON
TMOD
TL0
TL1
TH0
TH1
TCONB
RL0
RL1
RH0
RH1
TMOD: Timer/Counter Mode Control Register
GATE
7
M0
0
1
0
1
1
.
C/T
6
Timer1
Mode
0
1
2
3
3
Purpose
Control
Mode
Timer 0 low-byte
Timer 1 low-byte
Timer 0 high-byte
Timer 1 high-byte
Mode
Timer 0 reload low-byte
Timer 1 reload low-byte
Timer 0 reload high-byte
Timer 1 reload high-byte
M1
5
Operating Mode
Variable 9 - 16-bit Timer/Counter.
8-bit Timer/Counter THz with TLx as 1 - 8-bit prescaler.
16-bit Auto Reload Timer/Counter.
8-bit Timer/Counters THx and TLx are cascaded; there is no prescaler.
8-bit Auto Reload Timer/Counter.
8-bit auto-reload Timer/Counter THx holds a value which is to be
reloaded into TLx each time it overflows.
Split Timer/Counter.
(Timer 0) TL0 is an 8-bit Timer/Counter controlled by the standard
Timer 0 control bits. TH0 is an 8-bit timer only controlled by Timer 1
control bits.
(Timer 1) Timer/Counter 1 stopped.
M0
4
GATE
3
Address
8CH
8DH
88H
89H
8AH
8BH
91H
92H
93H
94H
95H
Timer 0 gate bit
Timer 0 counter/timer select bit
Timer 0 M1 bit
Timer 0 M0 bit
C/T
2
Timer0
Reset Value = 0000 0000B
M1
Bit-Addressable
1
Yes
No
No
No
No
No
No
No
No
No
No
M0
0
3547J–MICRO–10/09