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PDF T85C5121 Data sheet ( Hoja de datos )
| Número de pieza | T85C5121 | |
| Descripción | 8-bit Microcontroller with Multi protocol SMART Card Interface | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• 80C51 Core
– 12 or 6 Clocks per Instruction (X1 and X2 Modes)
– 256 Bytes Scratchpad RAM
– Dual Data Pointer
– Two 16-bit Timer/Counters: T0 and T1
• T83C5121 with 16 Kbytes Mask ROM
• T85C5121 with 16 Kbytes Code RAM
• T89C5121 with 16 Kbytes Code RAM and 16 Kbytes EEPROM
• On-chip Expanded RAM (XRAM): 256 Bytes
• Versatile Host Serial Interface
– Full-duplex Enhanced UART (EUART) with Dedicated Baud Rate Generator (BRG):
Most Standard Speeds up to 230K bits/s at 7.36 MHz
– Output Enable Input
– Multiple Logic Level Shifters Options (1.8V to VCC)
– Automatic Level Shifter Option
• Multi-protocol Smart Card Interface
– Certified with Dedicated Firmware According to ISO 7816, EMV2000, GIE-CB, GSM
11.12V and WHQL Standards
– Asynchronous Protocols T = 0 and T = 1 with Direct and Inverse Modes
– Baud Rate Generator Supporting All ISO7816 Speeds up to D = 32/F = 372
– Parity Error Detection and Indication
– Automatic Character Repetition on Parity Errors
– Programmable Timeout Detection
– Card Clock Stop High or Low for Card Power-down Mode
– Support Synchronous Card with C4 and C8 Programmable Outputs
– Card Detection and Automatic De-activation Sequence
– Step-up/down Converter with Programmable Voltage Output: 5V, 3V (± 8% at
60 mA) and 1.8V (±8% at 20 mA)
– Direct Connection to Smart Card Terminals:
Short Circuit Current Limitation
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Logic Level Shifters
4 kV ESD Protection (MIL/STD 833 Class 3)
• Alternate Card Support with CLK, I/O and RST According to GSM 11.12V Standard
• 2x I/O Ports: 6 I/O Port1 and 8 I/O Port3
• 2x LED Outputs with Programmable Current Sources: 2, 4, or 10 mA
• Hardware Watchdog
• Reset Output Includes
– Hardware Watchdog Reset
– Power-on Reset (POR)
– Power-fail Detector (PFD)
• 4-level Priority Interrupt System with 7 Sources
• 7.36 to 16 MHz On-chip Oscillator with Clock Prescaler
• Absolute CPU Maximal Frequency: 16 MHz in X1 mode, 8MHz in X2 mode
• Idle and Power-down Modes
• Voltage Operation: 2.85V to 5.4V
• Low Power Consumption
– 8 mA Operating Current (at 5.4V and 3.68 MHz)
– 150 mA Maximum Current with Smart Card Power-on (at 16 MHz X1 Mode)
– 30 μA Maximum Power-down Current at 3.0V (without Smart Card)
– 100 μA Maximum Power-down Current at 5.4V (without Smart Card)
• Temperature Range
– Commercial: 0 to +70°C Operating Temperature
– Industrial: -40 to +85°C Operating Temperature
• Packages
– SSOP24
– QFN32
– PLCC52
8-bit
Microcontroller
with Multi-
protocol Smart
Card Interface
T83C5121
T85C5121
T89C5121
AT83C5121
AT85C5121
AT89C5121
Rev. 4164G–SCR–07/06
1 page  
A/T8xC5121
Signals
Table 1. Ports Description
Port
P1.0
Signal
Name
CIO
Alternate
P1.1
CC8
P1.2 CPRES
P1.3
CC4
P1.4
CCLK
P1.5
CRST
All the T8xC5121 signals are detailed in Table 1.
The port structure is described in Section “Port Structure Description”.
Internal
Power
Supply
CVCC
CVCC
VCC
CVCC
CVCC
CVCC
ESD
4 kV
4 kV
4 kV
4 kV
4 kV
4 kV
Type Description
Smart card interface function
I/O
Card I/O.
Input/Output function
I/O
P1.0 is a bi-directional I/O port .
Reset configuration
I
Input .
Smart card interface function
O
Card contact 8
Output function
O
P1.1 is a Push-pull port.
Reset configuration
I
Input
Smart card interface function
I
Card presence
Input/Output function
I/O P1.2 is a bi-directional I/O port with internal pull-ups- ( External Pull-up
configuration can be selected).
Reset configuration
I
Input (high level due to internal pull-up)
Smart card interface function
O
Card contact 4
Output function
O
P1.3 is a Push-pull port.
Reset configuration
I
Input (high level due to internal pull-up)
Smart card interface function
O
Card clock
Input/Output function
I/O
P1.4 is a a Push-pull port.
Reset configuration
O
Output at low level
Smart card interface function
O
Card reset
Input/Output function
I/O
P1.5 is a a Push-pull port.
Reset configuration
O
Output at low level
4164G–SCR–07/06
5
5 Page 
Figure 6. Push-pull Output Configuration
P
Strong
PMOS
A/T8xC5121
Port latch
Data
N
NMOS
Pin
Input
Data
LED Output Configuration
The input only configuration is shown in Figure 7.
Figure 7. LED Source Current Configuration
2 CPU
CLOCK DELAY
P
PMOS Strong
P
Weak
P
Medium
LEDx.0
Port Latch
Data
LEDx.1
NMOS
N
LED1CTRL
LED2CTRL
N
N
Pin
Input
Data
Note: The port can be configured in quasi bi-directional mode and the level of current can be programmed by means of LEDCON0
and LEDCON1 registers before switching the led on by writing a logical 0 in Port latch.
4164G–SCR–07/06
11
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet T85C5121.PDF ] | |
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