T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 7
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
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Table 1. Ports Description (Continued)
4164G–SCR–07/06
Port
P3.5
P3.6
P3.7
P3.7
Signal
CCLK1
CRST1
CRST1
Name
CIO1
Alternate
LED0
LED1
Internal
Supply
Power
DV
DV
DV
DV
CC
CC
CC
CC
ESD
Type
I/O
I/O
I/O
I/O
I/O
O
O
O
O
Z
I
I
I
I
I
Description
Input/Output function
P3.4 is a bi-directional I/O port with internal pull-ups.
Timer 0 function: External clock input
When Timer 0 operates as a counter, a falling edge on the T0 pin
Reset configuration
High impedance due to PMOS switched OFF
Alternate card function
Card I/O
Input/Output function
P3.5 is a bi-directional I/O port with internal pull-ups.
Timer 1 function: External clock input
When Timer 1 operates as a counter, a falling edge on the T1 pin
Reset configuration
Input (high level due to internal pull-up)
Alternate card function
Card clock
LED function
These pins can be directly connected to the cathode of standard
Input/Output function
P3.6 is a LED port.
Reset configuration
Input at high level
Alternate card function
Card reset
LED function
These pins can be directly connected to the cathode of standard
Input/Output function
P3.7 is a a LED port.
Reset configuration
Input at high level
increments the count.
increments the count.
LED without external current limiting resistors. The typical current
of each output can be programmed by software to 2, 4 or 10 mA
(LEDCON register).
LED without external current limiting resistors. The typical current
of each output can be programmed by software to 2, 4 or 10 mA
(LEDCON register).
A/T8xC5121
7
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