A/D Converter. AT83C5112 Datasheet
8-bit Microcontroller with A/D Converter
|Total Page||30 Pages|
• 80C51 Compatible
– Five I/O Ports
– Two 16-bit Timer/Counters
– 256 Bytes RAM
• 8K Bytes ROM/OTP Program Memory with 64 Bytes Encryption Array and 3 Security
• High-Speed Architecture
– 33 MHz at 5V (66 MHz Equivalent)
– X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
• 10-bit, 8 Channels A/D Converter
• Hardware Watchdog Timer with Reset-out
• Programmable I/O Mode: Standard C51, Input Only, Push-pull, Open Drain
• Asynchronous Port Reset
• Full Duplex Enhanced UART with Baud Rate Generator
• SPI, Master Mode
• Dual System Clock
– Crystal or Ceramic Oscillator (33/40 MHz)
– Internal RC Oscillator (12 MHz)
– Programmable Prescaler
• Programmable Counter Array with High-speed Output, Compare/Capture, Pulse Width
Modulation and Watchdog Timer Capabilities
• Interrupt Structure
– 8 Interrupt Sources
– 4 Interrupt Priority Levels
• Power Control Modes
– Idle Mode
– Power-down Mode
– Power-off Flag
• Power Supply: 2.7 - 5.5V
• Temperature Range: Industrial (-40 To 85°C)
• Package: LQFP48 (Body 7*7*1.4 mm), PLCC52
The AT8xC5112 is a high performance ROM/OTP version of the 80C51 8-bit
The AT8xC5112 retains all the features of the standard 80C51 with 8 Kbytes
ROM/OTP program memory, 256 bytes of internal RAM, a 8-source, 4-level interrupt
system, an on-chip oscillator and two timer/counters.
The AT8xC5112 is dedicated for analog interfacing applications. For this, it has a 10-
bit, 8 channels A/D converter and a five channels Programmable Counter Array.
In addition, the AT8xC5112 has a Hardware Watchdog Timer, a versatile serial chan-
nel that facilitates multiprocessor communication (EUART) with an independent baud
rate generator, a SPI serial bus controller and a X2 speed improvement mechanism.
The X2 feature allows to keep the same CPU power at a divided by two oscillator
The fully static design of the AT8xC5112 allows to reduce system power consumption
by bringing the clock frequency down to any value, even DC, without loss of data.
The AT8xC5112 has 3 software-selectable modes of reduced activity for further reduc-
tion in power consumption. In the idle mode, the CPU is frozen while the peripherals are
still operating. In the quiet mode, the A/D converter is only operating. In the Power-down
mode, the RAM is saved and all other functions are inoperative. Two oscillators source,
crystal and RC, provide a versatile power management.
The AT8xC5112 is proposed in 48-/52-pin count packages with Port 0 and Port 2
8 K *8
(1) (1) (3)(3) (3) (3)
(2) (2) (3) (2) (3)
Parallel I/O Ports
Port 1 Port 3 Port 4 Port 0 Port 2
Notes: 1. Alternate function of Port 1.
2. Alternate function of Port 3.
3. Alternate function of Port 4.
|Features||Datasheet pdf Features • 80C51 Compatible – Five I /O Ports – Two 16-bit Timer/Counters – 256 Bytes RAM 8K Bytes ROM/OTP Prog ram Memory with 64 Bytes Encryption Arr ay and 3 Security Levels High-Speed Arc hitecture – 33 MHz at 5V (66 MHz Equi valent) – X2 Speed Improvement Capabi lity (6 Clocks/Machine Cycle) 10-bit, 8 Channels A/D Converter Hardware Watchd og Timer with Reset-out Programmable I/ O Mode: Standard C51, Input Only, Push- pull, Open Drain Asynchronous Port Rese t Full Duplex Enhanced UART with Baud R ate Generator SPI, Master Mode Dual Sys tem Clock – Crystal or Ceramic Oscill ator (33/40 MHz) – Internal RC Oscill ator (12 MHz) – Programmable Prescale r Programmable Counter Array with High- speed Output, Compare/Capture, Pulse Wi dth Modulation and Watchdog Timer Capab ilities Interrupt Structure – 8 Inter rupt Sources – 4 Interrupt Priority L evels Power Control Modes – Idle Mode – Power-down Mode – Power-off Flag Power Supply: 2.7 - 5.5V Temperature Range: Industrial (-40 To 85°C) Package: LQFP48 (Body.|
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