T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 26

• Manufacturer Part Number: T89C5121-ICUIL
• Description: IC 8051 MCU W/SMART CARD 24SSOP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of T89C5121-ICUIL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SmartCard, UART/USART
• Peripherals: LED, POR, WDT
• Number Of I /o: 14
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: Flash RAM
• Eeprom Size: 16K x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 5.4 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: Q1468934; T89C5121-ICSIL; T89C5121-ICSIL

26
A/T8xC5121
Table 10. CKCON1 Register
CKCON1 - Clock Control Register (AFh)
Reset Value = XXXX 0XXXb
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
SCX2
6
-
Bit
-
-
-
-
-
-
-
Description
Reserved
Reserved
Reserved
Reserved
SCIB clock
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
Reserved
Reserved
Reserved
5
-
4
-
SCX2
3
2
-
1
-
4164G–SCR–07/06
0
-