AT89C51AC3-SLSIM Atmel, AT89C51AC3-SLSIM Datasheet - Page 97
AT89C51AC3-SLSIM
Manufacturer Part Number
AT89C51AC3-SLSIM
Description
IC 8051 MCU FLASH 64K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51AC3-RLTUM.pdf
(140 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT89C51AC3-SLSIM
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Figure 55. PCA Capture Mode
16-bit Software Timer
Mode
Figure 56. PCA 16-bit Software Timer and High Speed Output Mode
4383D–8051–02/08
Write to
CCAPnL
Write to CCAPnH
Reset
CEXn
n = 0, 4
“0”
“1”
PCA Counter
(8 bits)
CH
(8 bits)
The PCA modules can be used as software timers by setting both the ECOM and MAT
bits in the modules CCAPMn register. The PCA timer will be compared to the module’s
capture registers and when a match occurs an interrupt will occur if the CCFn (CCON
SFR) and the ECCFn (CCAPMn SFR) bits for the module are both set.
CL
7
-
Enable
7
0CAPPn CAPNn
-
Compare/Capture Module
CCAPnH
ECOMn0 0 MATn TOGn0 ECCFn
(8 bits)
16-Bit Comparator
0
CCAPMn Register (n = 0, 4)
CCAPnL
(8 bits)
000
For software Timer mode, set ECOMn and MATn.
For high speed output mode, set ECOMn, MATn and TOGn.
CCAPMn Register
Match
ECCFn
(n = 0, 4)
CCON
CCFn
CCFn
CCON reg
CCAPnH CCAPnL
Toggle
(8bits)
PCA Counter
CH
0
(8bits)
CL
PCA
Interrupt
Request
CEXn
PCA
Interrupt
Request
97
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