TS87C51RB2-LCE Atmel, TS87C51RB2-LCE Datasheet - Page 13
![IC MCU 8BIT 16K OTP 30MHZ 44VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
TS87C51RB2-LCE
Manufacturer Part Number
TS87C51RB2-LCE
Description
IC MCU 8BIT 16K OTP 30MHZ 44VQFP
Manufacturer
Atmel
Series
87Cr
Datasheets
1.TS87C51RB2-VIA.pdf
(3 pages)
2.TS87C51RB2-VIA.pdf
(86 pages)
3.TS87C51RB2-VIA.pdf
(74 pages)
Specifications of TS87C51RB2-LCE
Core Processor
8051
Core Size
8-Bit
Speed
30/20MHz
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)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
CKCON - Clock Control Register (8Fh)
Reset Value = XXXX XXX0b
Not bit addressable
For further details on the X2 feature, please refer to ANM072 available on the web (http://www.atmel-wm.com)
Rev. C - 06 March, 2001
Bit Number
7
6
5
4
3
2
1
0
7
-
Mnemonic
Bit
X2
-
-
-
-
-
-
-
6
-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CPU and peripheral clock bit
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
Clear to select 12 clock periods per machine cycle (STD mode, F
Set to select 6 clock periods per machine cycle (X2 mode, F
5
-
Table 3. CKCON Register
4
-
3
-
Description
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
OSC
2
-
=F
OSC
XTAL
TS80C51RA2/RD2
=F
XTAL
).
/
2).
1
-
X2
0
13