AT89C51IC2-SLSUM Atmel, AT89C51IC2-SLSUM Datasheet - Page 24

• Manufacturer Part Number: AT89C51IC2-SLSUM
• Description: IC 8051 MCU FLASH 32K 44PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51IC2-SLSUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART, SPI, TWI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

24
AT89C51IC2
Table 20. CKCON1 Register
CKCON1 - Clock Control Register (AFh)
Reset Value = XXXX XXX0b
Not bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
SPIX2
Bit
6
-
-
-
-
-
-
-
-
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SPI (This control bit is validated when the CPU clock X2 is set; when X2 is low,
this bit has no effect)
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
5
-
4
-
3
-
2
-
1
-
4301D–8051–02/08
SPIX2
0