TS87C54X2-MCA Atmel, TS87C54X2-MCA Datasheet - Page 10

• Manufacturer Part Number: TS87C54X2-MCA
• Description: IC MCU 8BIT 16K OTP 40MHZ 40-DIP
• Manufacturer: Atmel
• Series: 87Cr

Specifications of TS87C54X2-MCA

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/20MHz
• Connectivity: UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

10
AT/TS8xC54/8X2
Table 6-1.
Reset Value = XXXX XXX0b
Not bit addressable
For further details on the X2 fe ature, please refer to ANM072 ava ilable on the web
(http://www.atmel.com)
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
Bit
CKCON Register
CKCON - Clock Control Register (8Fh)
X2
-
-
-
-
-
-
-
6
-
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.
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.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
CPU and peripheral clock 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
-
4
-
3
Description
-
2
-
OSC
=F
OSC
XTAL
=F
1
-
).
XTAL
/
4431E–8051–04/06
2).
X2
0