T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 35
T89C5121-ICUIL
Manufacturer Part Number
T89C5121-ICUIL
Description
IC 8051 MCU W/SMART CARD 24SSOP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.89C5121-SK1.pdf
(115 pages)
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
T89C5121-ICSIL
T89C5121-ICSIL
- Current page: 35 of 115
- Download datasheet (838Kb)
Other Features
Clock
Alternate Card
4164G–SCR–07/06
The Ck-ISO input must be in the range 1 - 5 MHz according to ISO7816.
The ISO Clock diagram and the configuration examples are shown in Figure 20.
Figure 21. Clock Diagram of the SCIB Block
Table 13. Examples of Settings for Clocks
A second card named "Alternate card" can be controlled.
The Clock signal CCLK1 can be adapted to the XTAL frequency. Thanks to the clock
prescaler which can divide the frequency by 1, 2, 4 or 8. The bits ALTKPS0 and
ALTKPS1 in SCSR Register are used to set this factor.
Xtal ( MHz)
14.7456
11.059
16
20
4
4
8
FCLK_CPU
FCLK_Periph
X2 CKCON0
1 (mode X2)
0
1
0
0
0
0
CKCON 1.3
SCX2
2
1
+ FCLK Periph
FCLK Cpu
Reset value = 1
( MHz)
5.5295
7.3728
10
2
4
8
8
1
0
SCX2
Clk_cpu
Clk_iso
0
0
1
1
1
1
1
F4_8MHz
A/T8xC5121
SCIB
(1 to 5 MHz)
Clk_ iso
2.7648
3.6864
2
4
4
4
5
35
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