AT89LP216-20PU Atmel, AT89LP216-20PU Datasheet - Page 4
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT89LP216-20PU
Manufacturer Part Number
AT89LP216-20PU
Description
MCU 8051 2K FLASH 20MHZ 16-PDIP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP216-20PU.pdf
(98 pages)
Specifications of AT89LP216-20PU
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
14
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
16-DIP (0.300", 7.62mm)
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
UART, SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
14
Number Of Timers
2
Operating Supply Voltage
2.4 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89ISP
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
4. Block Diagram
5. Comparison to Standard 8051
5.1
5.2
4
System Clock
Instruction Execution with Single-cycle Fetch
AT89LP216
Figure 4-1.
The AT89LP216 is part of a family of devices with enhanced features that are fully binary com-
patible with the MCS-51 instruction set. In addition, most SFR addresses, bit assignments, and
pin alternate functions are identical to Atmel’s existing standard 8051 products. However, due to
the high performance nature of the device, some system behaviors are different from those of
Atmel's standard 8051 products such as AT89S52 or AT89S2051. The differences from the
standard 8051 are outlined in the following paragraphs.
The CPU clock frequency equals the external XTAL1 frequency. The oscillator is no longer
divided by 2 to provide the internal clock and x2 mode is not supported.
The CPU fetches one code byte from memory every clock cycle instead of every six clock
cycles. This greatly increases the throughput of the CPU. As a consequence, the CPU no longer
executes instructions in 12 to 48 clock cycles. Each instruction executes in only 1 to 4 clock
cycles. See
“Instruction Set Summary” on page 59
AT89LP216 Block Diagram
Configurable I/O
General-purpose
Configurable I/O
Single Cycle
8051 CPU
128 Bytes
2K Bytes
Interrupt
Flash
Port 3
Port 1
RAM
CPU Clock
for more details.
RC Oscillator
Configurable
Comparator
Watchdog
Oscillator
Timer 0
Timer 1
On-Chip
Analog
UART
Timer
SPI
Resonator
Crystal or
3621E–MICRO–11/10