AT89C51RC-24PU Atmel, AT89C51RC-24PU Datasheet - Page 23

IC MCU 32K FLASH 24MHZ 40-DIP

AT89C51RC-24PU

Manufacturer Part Number
AT89C51RC-24PU
Description
IC MCU 32K FLASH 24MHZ 40-DIP
Manufacturer
Atmel
Series
89Cr
Datasheet

Specifications of AT89C51RC-24PU

Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
SPI, UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Cpu Family
89C
Device Core
8051
Device Core Size
8b
Frequency (max)
24MHz
Interface Type
UART
Total Internal Ram Size
512Byte
# I/os (max)
32
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
40
Package Type
PDIP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
512 B
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
32
Number Of Timers
3 bit
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
For Use With
AT89STK-11 - KIT STARTER FOR AT89C51RX2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Compliant

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22. Programming Interface
Table 22-1.
Notes:
1920D–MICRO–6/08
Mode
Write Code Data
Read Code Data
Write Lock Bit 1
Write Lock Bit 2
Write Lock Bit 3
Read Lock Bits
1, 2, 3
Chip Erase
Read Atmel ID
Read Device ID
Read Device ID
1. Write Code Data requires a 200 ns PROG pulse.
2. Write Lock Bits requires a 100 µs PROG pulse.
3. Chip Erase requires a 200 ns - 500 ns PROG pulse.
4. RDY/BSY signal is output on P3.0 during programming.
Flash Programming Modes
V
6.5V
6.5V
6.5V
6.5V
5V
5V
5V
5V
5V
5V
CC
RST
Every code byte in the Flash array can be programmed 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.
H
H
H
H
H
H
H
H
H
H
PSEN
L
L
L
L
L
L
L
L
L
L
PROG
ALE/
(1)
(2)
(2)
(2)
(3)
H
H
H
H
H
EA/
12 V
H/12
12 V
12 V
12 V
V
12V
H
H
H
H
PP
V
P2.6
H
H
H
H
H
L
L
L
L
L
P2.7
H
H
H
H
L
L
L
L
L
L
P3.3
H
H
H
H
H
L
L
L
L
L
P3.6
H
H
H
H
H
L
L
L
L
L
P3.7
H
H
H
L
L
L
L
L
L
L
P0.7-0
Data
P0.2,
P0.3,
D
P0.4
1EH
51H
07H
D
OUT
X
X
X
X
IN
P3.4
A14
A14
AT89C51RC
X
X
X
X
X
X
X
X
XX 0000
XX 0001
XX 0010
Address
P2.5-0
A13-8
A13-8
X
X
X
X
X
P1.7-0
A7-0
A7-0
00H
00H
00H
X
X
X
X
X
23

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