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PDF AT83C5127 Data sheet ( Hoja de datos )
| Número de pieza | AT83C5127 | |
| Descripción | MICROCONTROLLER | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• ClockwwCwo.nDtartoalSlehreet4U.com
– 80C51 core with 6 clocks per instruction
– 8 MHz On-Chip Oscillator
– PLL for generating 96 MHz clock to supply CPU core, USB and Smart Card Interfaces
– Programmable CPU clock from 500 kHz / X1 to 48 MHz / X1
• Reset Controller
– Power On Reset (POR) feature avoiding an external reset capacitor
– Power Fail Detector (PFD)
– Watch-Dog Timer
• Power Management
– Two power saving modes: Idle and Power Down
– Four Power Down Wake-up Sources: Smart Card Detection, Keyboard Interrupt, USB
Resume, External Interrupt
– Input Voltage Range: 4.5V - 5.5V
– Core’s Power Consumption (Without Smart Card and USB):
•30 mA Maximum Operating Current @ 48 MHz / X1
•200 µA Maximum Power-down Current @ 5.5V
• Interrupt Controller
– up to 7 interrupt sources
– up to 4 Level Priority
• Memory Controller
– Internal Program memory: up to 16 Kbytes of ROM
– Internal Data Memory : 768 bytes including 256 bytes of data and 512 bytes of XRAM
• Two 16-bit Timer/Counters
• USB 2.0 Full Speed Interface
– 48 MHz DPLL
– On-Chip 3.3V USB voltage regulator and transceivers
– Software detach feature
– 7 endpoints programmable with In or out directions and ISO, Bulk or Interrupt Transfers :
•Endpoint 0: 32 Bytes Bidirectionnal FIFO for Control transfers
•Endpoints 1,2,3: 8 bytes FIFO
•Endpoints 4,5: 64 Bytes FIFO
•Endpoint 6: 2*64 bytes FIFO with Pin-Pong feature
• ISO 7816 UART Interface Fully Compliant with EMV2000, GIE-CB and WHQL Standards
– Programmable ISO clock from 1 MHz to 4.8 MHz
– Card insertion/removal detection with automatic deactivation sequence
– Programmable Baud Rate Generator from 372 to 11.625 clock pulses
– Synchronous/Asynchronous Protocols T=0 and T=1 with Direct or Inverse Convention
– Automatic character repetition on parity errors
– 32 Bit Waiting Time Counter
– 16 Bit Guard Time Counter
– Internal Step Up/Down Converter with Programmable Voltage Output:
•1.8V-30mA, 3V-50mA and 5V-60mA
– Current overload protection
– 6 kV ESD (MIL/STD 833 Class 3) protection on whole Smart Card Interface
• Alternate Smart Card Interface with CLK, IO and RST
• UART Interface with Integrated Baud Rate Generator (BRG)
• Four 12 I/O bit Ports
– Up to four LED outputs with 3 level programmable current source: 2, 4 and 10 mA
– Two General Purpose I/O programmable as external interrupts
• Packages
– VQFP32, QFN32, Die
C51
Microcontroller
with USB and
Smart Card
Reader
Interfaces
AT83C5127
Summary
For detailed functional description,
please refer to the AT8xC5122/23
datasheet.
7519A–SCR–04/05
1
1 page  
AT83C5127
Table 1. Pin Description (Continued)
www.DataSheet4U.com
Port
Internal
Power
Supply
ESD
I/O
Reset
Level
Alt
Reset
Config
Conf 1
Conf 2
Conf 3
Led
D+ 29 29 DVCC
I/O
USB Positive Data Upstream Port
This pin requires an external serial resistor of 33Ω and a 1.5 KΩ pull-
up to VREF for full speed configuration.
D- 28 28 DVCC
VREF 30 30 AVCC
I/O
O
USB Negative Data Upstream Port
This pin requires an external serial resistor of 33Ω
USB Voltage Reference: 3.0 < VREF < 3.6 V
VREF can be connected to D+ through a 1.5 KΩ resistor. The VREF
voltage is controlled by software.
Input to the on-chip inverting oscillator amplifier
XTAL1 14 14 VCC I To use the internal oscillator, a crystal or an external oscillator must be
connected to this pin.
Output of the on-chip inverting oscillator amplifier
XTAL2 15 15 VCC O To use the internal oscillator, a crystal circuit must be connected to
this pin. If an external oscillator is used, leave XTAL2 unconnected.
PLLF 26 26 AVCC
O
PLL Low Pass Filter input
Receives the RC network of the PLL low pass filter.
AVCC 27 27
PWR
Analog Supply Voltage
AVCC is used to supply the internal 3.3V analog regulator which
supplies the internal USB driver
VCC 12 12
PWR
Supply Voltage
VCC is used to supply the internal 3.3V digital regulator which
supplies the PLL, CPU core and internal I/O’s
LI 10 10
PWR
DC/DC Input
LI supplies the current for the charge pump of the DC/DC converter.
- LI tied directly to VCC : the DC/DC converter must be configured in
regulator mode.
- LI tied to VCC through an external 10µH coil : the DC/DC converter
can be configured either in regulator or in pump mode.
CVCC 9 9
PWR
Card Supply Voltage
CVCC is the ouput of internal DC/DC converter which supplies the
Smart Card Interface. It must be connected to an external decoupling
capacitor of 10 µF with the lowest ESR as this parameter influences
on the CVCC noise
DVCC 1 1
PWR
Digital Supply Voltage
DVCC is the output of the internal analog 3.3V regulator which
supplies the USB driver. This pin must be connected to an external
680nF decoupling capacitor if the USB interface is used.
CVSS 11 11
GND
DC/DC Ground
CVSS is used to sink high shunt currents from the external coil
VSS
88
GND
Digital Ground
VSS is used to supply the PLL, buffer ring and the digital core
AVSS 25 25
GND
Analog Ground
AVSS is used to supply the USB driver.
7519A–SCR–04/05
5
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AT83C5127.PDF ] | |
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