AT89C51AC3-SLSIM Atmel, AT89C51AC3-SLSIM Datasheet - Page 100

IC 8051 MCU FLASH 64K 44PLCC

AT89C51AC3-SLSIM

Manufacturer Part Number
AT89C51AC3-SLSIM
Description
IC 8051 MCU FLASH 64K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet

Specifications of AT89C51AC3-SLSIM

Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2.25K 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-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Price
Part Number:
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Atmel
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AT89C51AC3-SLSIM
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PCA Registers
100
AT89C51AC3
Table 50. CMOD Register
CMOD (S:D9h)
PCA Counter Mode Register
Reset Value = 00XX X000b
Number
CIDL
Bit
2-1
7
7
6
5
4
3
0
Mnemonic Description
CPS1:0
WDTE
WDTE
CIDL
ECF
Bit
6
-
-
-
PCA Counter Idle Control bit
Clear to let the PCA run during Idle mode.
Set to stop the PCA when Idle mode is invoked.
WatchDog Timer Enable
Clear to disable WatchDog Timer function on PCA Module 4,
Set to enable it.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
EWC Count Pulse Select bits
CPS1 CPS0 Clock source
0
0
1
1
Enable PCA Counter Overflow Interrupt bit
Clear to disable CF bit in CCON register to generate an interrupt.
Set to enable CF bit in CCON register to generate an interrupt.
5
-
0
1
0
1
Internal Clock, FPca/6
Internal Clock, FPca/2
Timer 0 overflow
External clock at ECI/P1.2 pin (Max. Rate = FPca/4)
4
-
3
-
CPS1
2
4383D–8051–02/08
CPS0
1
ECF
0

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