AT89C51AC2-RLTUM Atmel, AT89C51AC2-RLTUM Datasheet - Page 70
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AT89C51AC2-RLTUM
Manufacturer Part Number
AT89C51AC2-RLTUM
Description
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51AC2-RLTUM.pdf
(121 pages)
Specifications of AT89C51AC2-RLTUM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1280 B
Interface Type
UART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
34
Number Of Timers
3
Operating Supply Voltage
3 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
70
A/T89C51AC2
Table 48. TL2 Register
TL2 (S:CCh)
Timer 2 Low Byte Register
Reset Value = 0000 0000b
Not bit addressable
Table 49. RCAP2H Register
RCAP2H (S:CBh)
Timer 2 Reload/Capture High Byte Register
Reset Value = 0000 0000b
Not bit addressable
Table 50. RCAP2L Register
RCAP2L (S:CA
T
Reset Value = 0000 0000b
Not bit addressable
IMER
Number
Number
Number
Bit
Bit
Bit
7-0
7-0
7-0
7
7
7
-
-
-
2 R
E
load/Capture Low Byte Register
Mnemonic Description
Mnemonic Description
Mnemonic Description
Bit
Bit
Bit
H
6
6
6
-
-
-
)
Low Byte of Timer 2.
High Byte of Timer 2 Reload/Capture.
Low Byte of Timer 2 Reload/Capture.
5
5
5
-
-
-
4
4
4
-
-
-
3
3
3
-
-
-
2
2
2
-
-
-
1
1
1
-
-
-
4127H–8051–02/08
0
0
0
-
-
-