Datasheet > ADUC7028

ADUC7028

更新时间： 2023-09-23 06:49:07

品牌	Logo	应用领域
亚德诺 - ADI		控制器微控制器
页数	文件大小	规格书
92页	978K
描述
精密模拟微控制器，12位模拟I/O，ARM7TDMI® MCU

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数据手册

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ADUC7028 数据手册

ADuC7019/20/21/22/24/25/26/27

GENERAL DESCRIPTION

The ADuC7019/7020/7021/7022/7024/7025/7026/7027 are fully

integrated, 1 MSPS, 12-bit data acquisition systems incorporat-

ing high performance multichannel ADCs, 16-bit/32-bit MCUs

and Flash/EE memory on a single chip.

The devices operate from an on-chip oscillator and a PLL

generating an internal high frequency clock of 41.78 MHz. This

clock is routed through a programmable clock divider from

which the MCU core clock operating frequency is generated.

The microcontroller core is an ARM7TDMI, 16-bit/32-bit RISC

machine, which offers up to 41 MIPS peak performance. Eight

kilobytes of SRAM and 62 kilobytes of nonvolatile Flash/EE

memory are provided on-chip. The ARM7TDMI core views all

memory and registers as a single linear array.

The ADC consists of up to 12 single-ended inputs. An

additional four inputs are available but are multiplexed

with the four DAC output pins. The four DAC outputs are

only available on certain models (ADuC7020, and ADuC7026).

However, in many cases where the DAC outputs are not present,

these pins can still be used as additional ADC inputs, giving a

maximum of 16 ADC input channels. The ADC can operate in

single-ended or differential input modes. The ADC input

voltage is 0 to V_REF. Low-drift bandgap reference, temperature

sensor, and voltage comparator complete the ADC peripheral

set.

On-chip factory firmware supports in-circuit serial download

via the UART or I²C serial interface ports, while nonintrusive

emulation is also supported via the JTAG interface. These

features are incorporated into a low-cost QuickStart™

Development System supporting this MicroConverter® family.

The parts operate from 2.7 V to 3.6 V and are specified over an

industrial temperature range of −40°C to +125°C. When operating

at 41.78 MHz, the power dissipation is typically 120 mW. The

ADuC7019/7020/7021/7022/7024/7025/7026/7027 are available in

a variety of memory models and packages.

Depending on the part model, up to four buffered voltage

output DACs are available on-chip. The DAC output range is

programmable to one of three voltage ranges.

Rev. A | Page 4 of 92

1 2 345 6 7...92

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