89C5121-SK1 Atmel, 89C5121-SK1 Datasheet - Page 22
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
89C5121-SK1
Manufacturer Part Number
89C5121-SK1
Description
KIT SMART CARD FOR AT89C5121
Manufacturer
Atmel
Type
Smart Cardr
Datasheet
1.89C5121-SK1.pdf
(115 pages)
Specifications of 89C5121-SK1
Contents
Board
For Use With/related Products
AT89C5121
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
T89C5121-SK1
T89C5121-SK1
T89C5121-SK1
- Current page: 22 of 115
- Download datasheet (838Kb)
Clock Management
Functional Block
Diagram
22
A/T8xC5121
In order to optimize the power consumption and the execution time needed for a specific
task, an internal prescaler feature and a X2 feature have been implemented between
the oscillator and the CPU.
Figure 11. Clock Generation Diagram
If CKRL<>7 then:
If CKRL = 7 then:
XTAL1
XTAL2
F
CLK CPU
F
CLK CPU
–
–
Osc.
=
=
F
Fosc
------------- -
2 x2
OSC
F O SC
-----------------
2 x2
CKRL
7
6
5
4
3
2
1
0
x
---------------------------------- -
2 7 CKRL
2
1
–
1
CKCON0
X2
0
1
F
2
OSC
x2
2(7-CKRL)
1
Prescalor Factor
CKRL = 7
CKRL
0
1
10
12
14
1
2
4
6
8
4164G–SCR–07/06
F
F
CLK_CPU
CLK_Periph
Related parts for 89C5121-SK1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: