IC MCU 2K FLASH 24MHZ 20-DIP

AT89C2051-24PU

Manufacturer Part NumberAT89C2051-24PU
DescriptionIC MCU 2K FLASH 24MHZ 20-DIP
ManufacturerAtmel
Series89C
AT89C2051-24PU datasheet
 


Specifications of AT89C2051-24PU

Core Processor8051Core Size8-Bit
Speed24MHzConnectivityUART/USART
PeripheralsLEDNumber Of I /o15
Program Memory Size2KB (2K x 8)Program Memory TypeFLASH
Ram Size128 x 8Voltage - Supply (vcc/vdd)4 V ~ 6 V
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case20-DIP (0.300", 7.62mm)Processor SeriesAT89x
Core8051Data Bus Width8 bit
Data Ram Size128 BInterface TypeUART
Maximum Clock Frequency24 MHzNumber Of Programmable I/os15
Number Of Timers2Operating Supply Voltage2.7 V to 6 V
Maximum Operating Temperature+ 85 CMounting StyleThrough Hole
3rd Party Development ToolsPK51, CA51, A51, ULINK2Minimum Operating Temperature- 40 C
Package20PDIPDevice Core8051
Family Name89CMaximum Speed24 MHz
Cpu Family89CDevice Core Size8b
Frequency (max)24MHzTotal Internal Ram Size128Byte
# I/os (max)15Number Of Timers - General Purpose2
Operating Supply Voltage (typ)5VOperating Supply Voltage (max)6V
Operating Supply Voltage (min)4VInstruction Set ArchitectureCISC
Operating Temp Range-40C to 85COperating Temperature ClassificationIndustrial
MountingThrough HolePin Count20
Package TypePDIPLead Free Status / RoHS StatusLead free / RoHS Compliant
Eeprom Size-Data Converters-
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12. Programming Interface
Every code byte in the Flash array can be written and the entire array can be erased by using
the appropriate combination of control signals. The write operation cycle is self-timed and once
initiated, will automatically time itself to completion.
Most major worldwide programming vendors offer support for the Atmel AT89 microcontroller
series. Please contact your local programming vendor for the appropriate software revision.
13. Flash Programming Modes
Mode
(1)(3)
Write Code Data
(1)
Read Code Data
Write Lock
Chip Erase
Read Signature Byte
Notes:
1. The internal PEROM address counter is reset to 000H on the rising edge of RST and is advanced by a positive pulse at
XTAL1 pin.
2. Chip Erase requires a 10 ms PROG pulse.
3. P3.1 is pulled Low during programming to indicate RDY/BSY.
0368H–MICRO–6/08
RST/VPP
P3.2/PROG
12V
H
H
Bit - 1
12V
Bit - 2
12V
12V
H
H
AT89C2051
P3.3
P3.4
P3.5
L
H
H
L
L
H
H
H
H
H
H
L
(2)
H
L
L
L
L
L
P3.7
H
H
H
L
L
L
9