AT89LP828-20PU Atmel, AT89LP828-20PU Datasheet - Page 86
AT89LP828-20PU
Manufacturer Part Number
AT89LP828-20PU
Description
MCU 8051 8K FLASH SPI 28PDIP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP428-20AU.pdf
(149 pages)
Specifications of AT89LP828-20PU
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
30
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
2-Wire, SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
30
Number Of Timers
3
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
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP828-20PU
Manufacturer:
NXP
Quantity:
3 942
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Figure 16-4. Serial Port Mode 1
86
SMOD1
OVERFLOW
TIMER 1
DATA
SHIFT
TXD
TI
CLOCK
RCLK
AT89LP428/828
TCLK
÷2
TX
BIT DETECTOR SAMPLE TIMES
WRITE TO SBUF
“0”
RI
SHIFT
RXD
START BIT
“0”
“0”
CLOCK
“1”
RX
SEND
OVERFLOW
TIMER 2
“1”
“1”
RXD
WRITE
SAMPLE
SBUF
D0
TO
TRANSITION
DETECTOR
INTERRUPT
1-TO-0
÷16 RESET
START BIT
÷16
SERIAL
D1
PORT
START
D2
START
RX CLOCK
DETECTOR
D0
÷16
D
CL
“1”
RX CLOCK
S
BIT
Q
D3
D1
ZERO DETECTOR
RX CONTROL
TX CONTROL
READ
SBUF
RI
TI TI
INTERNAL BUS
LOAD
SBUF
D4
SBUF
D2
SHIFT
INTERNAL BUS
INPUT SHIFT REG.
1FFH
SEND
SHIFT
DATA
LOAD
SBUF
SBUF
D5
(9 BITS)
D3
D6
D4
SHIFT
D7
D5
D6
TXD
STOP BIT
D7
STOP BIT
3654A–MICRO–8/09
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