AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 183

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

Specifications of AT89C5131A-L

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 48 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 1024
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Isp: UART/USB
• Watchdog: Yes

4338F–USB–08/07
On-chip Expanded RAM (ERAM)....................................................... 47
Timer 2 ................................................................................................. 50
Programmable Counter Array (PCA) ................................................ 55
Serial I/O Port ...................................................................................... 66
Interrupt System ................................................................................. 76
Keyboard Interface ............................................................................. 85
Programmable LED ............................................................................ 89
Serial Peripheral Interface (SPI) ........................................................ 90
Two Wire Interface (TWI).................................................................... 99
Flash Programming and Erasure........................................................................ 43
Boot Process ...................................................................................................... 44
Application-Programming-Interface .................................................................... 45
XROW Bytes....................................................................................................... 45
Hardware Conditions .......................................................................................... 45
Auto-reload Mode ............................................................................................... 50
Programmable Clock Output .............................................................................. 51
PCA Capture Mode............................................................................................. 62
16-bit Software Timer/Compare Mode................................................................ 62
High Speed Output Mode ................................................................................... 63
Pulse Width Modulator Mode.............................................................................. 64
PCA Watchdog Timer ......................................................................................... 65
Framing Error Detection ..................................................................................... 66
Automatic Address Recognition.......................................................................... 67
Baud Rate Selection for UART for Mode 1 and 3............................................... 69
UART Registers.................................................................................................. 72
Overview............................................................................................................. 76
Registers............................................................................................................. 77
Interrupt Sources and Vector Addresses............................................................ 84
Introduction ......................................................................................................... 85
Description.......................................................................................................... 85
Registers............................................................................................................. 86
Features.............................................................................................................. 90
Signal Description............................................................................................... 90
Functional Description ........................................................................................ 92
Description........................................................................................................ 101
Notes ................................................................................................................ 104
Registers........................................................................................................... 114
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