AT87C51RB2-3CSUM Atmel, AT87C51RB2-3CSUM Datasheet - Page 21
![IC 8051 MCU 16K OTP 40MHZ 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
AT87C51RB2-3CSUM
Manufacturer Part Number
AT87C51RB2-3CSUM
Description
IC 8051 MCU 16K OTP 40MHZ 40DIP
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C51RB2-VIA.pdf
(86 pages)
Specifications of AT87C51RB2-3CSUM
Core Processor
8051
Core Size
8-Bit
Speed
40/20MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
OTP
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Figure 6-3.
4188F–8051–01/08
Clock-Out Mode C/T2 = 0
T2EX
T2
It is possible to use timer 2 as a baud rate generator and a clock generator simultaneously. For
this configuration, the baud rates and clock frequencies are not independent since both func-
tions use the values in the RCAP2H and RCAP2L registers.
Table 6-2.
XTAL1
TF2
7
(:1 in X2 mode)
T2CON Register
T2CON - Timer 2 Control Register (C8h)
EXF2
:2
6
T2CON reg
EXEN2
Q
Toggle
RCLK
T2CON reg
5
TR2
D
TCLK
4
T2CON reg
RCAP2L
EXF2
(8-bit)
(8-bit)
TL2
T2MOD reg
T2OE
EXEN2
RCAP2H
(8-bit)
(8-bit)
TH2
3
INTERRUPT
TIMER 2
OVERFLOW
TR2
AT/TS8xC51Rx2
2
C/T2#
1
CP/RL2#
0
21
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