T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 63

• 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

T83C5121 with Mask ROM
Version
In-System Programming
Hardware Interface
4164G–SCR–07/06
Figure 25. CRAM and ROM Mappings
In this version, the customer program is masked in 16 Kbytes ROM.
•
The In-System Programming (ISP) mode is only implemented in the following product
versions:
•
•
(The ROM product version is masked with the customer program and does not need
ISP mode)
The ISP is used to download an Application program in the device and to run it.
The communication protocols which are implemented are: UART and TWI.
The hardware in relation with the two communication protocols is detailed below:
•
•
C000h
FFFFh
F800h
The customer program is masked in ROM during the final production phase. The
ROM size will be determined at mask generation process depending of the program
size.
EEPROM version
CRAM version
TWI protocol
Serial protocol
entry point
Bootloader
ROM
3FFFh
0000h
CRAM
16K bytes
256 bytes
XRAM
A/T8xC5121
256 bytes
RAM
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