MCU 8kB Flash Memory 6-channel 12-bit ADC Dual-channel 12-bit DAC Precision Analog Microcontroller Chip ADUC814ARUZ-REEL7
FEATURES
ANALOG I/O
6-channel 247 kSPS ADC
12-bit resolution
ADC high speed data capture mode
Programmable reference via on-chip DAC for low
level inputs, ADC performance specified to VREF = 1 V
Dual voltage output DACs
12-bit resolution, 15 µs settling time
Memory
8 kbytes on-chip Flash/EE program memory
640 bytes on-chip Flash/EE data memory
Flash/EE, 100 year retention, 100 kcycle endurance
3 levels of Flash/EE program memory security
In-circuit serial downlaod (no external hardware)
256 bytes on-chip data RAM
8051 based core
8051 compatible instruction set
32 kHz external crystal,
on-chip programmable PLL (16.78 MHz max)
Three 16-bit timer/counters
11 programmable I/O lines
11 interrupt sources, 2 priority levels
Power
Specified for 3 V and 5 V operation
Normal: 3 mA @ 3 V (core CLK = 2.1 MHz)
Power-down: 15 µA (32 kHz oscillator running)
On-chip peripherals
Power-on reset circuit (no need for external POR device)
Temperature monitor (±1.5°C accuracy)
Precision voltage reference
Time interval counter (wake-up/RTC timer)
UART serial I/O
SPI®/I2C® compatible serial I/O
Watchdog timer (WDT), power supply monitor (PSM)
Package and temperature range
28-lead TSSOP 4.4 mm × 9.7 mm package
Fully specified for −40°C to +125°C operation
APPLICATIONS
Optical networking—laser power control
Base station systems—power amplifier bias control
Precision instruments, smart sensors
Battery-powered systems, precision system monitors
GENERAL DESCRIPTION
The ADuC814 is a fully integrated 247 kSPS, 12-bit data acquisi
tion system incorporating a high performance multichannel
ADC, an 8-bit MCU, and program/data Flash/EE memory on a
single chip.
This low power device operates from a 32 kHz crystal with an
on-chip PLL generating a high frequency clock of 16.78 MHz.
This clock is, in turn, routed through a programmable clock
divider from which the MCU core clock operating frequency is
generated.
The microcontroller core is an 8052 and is compatible with an
8051 instruction. 8 kBytes of nonvolatile Flash/EE program
memory are provided on-chip. 640 bytes of nonvolatile Flash/EE
data memory and 256 bytes RAM are also integrated on-chip.
The ADuC814 also incorporates additional analog functionality
with dual 12-bit DACs, a power supply monitor, and a band gap
reference. On-chip digital peripherals include a watchdog timer,
time interval counter, three timer/counters, and two serial I/O
ports (SPI and UART).
On-chip factory firmware supports in-circuit serial download
and debug modes (via UART), as well as single-pin emulation
mode via the DLOAD pin. The ADuC814 is supported by a
QuickStart™ Development System.
The part operates from a single 3 V or 5 V supply over the
extended temperature range −40°C to +125°C. When operating
from 3 V supplies, the power dissipation for the part is below
10 mW. The ADuC814 is housed in a 28-lead TSSOP package.
Packaging and transportation instructions
- According to the standard export packaging.
Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.
Q&A
1. How to obtain the price?
We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.
2. What is your delivery time?
This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.
3. What are your payment terms?
Factory price, 30% deposit, 70%T/T payment before shipment.
4. What is the mode of transportation?
It can be transported by sea, air or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before placing an order.
5. How do you help our business establish a long-term and good relationship?
We maintain good quality and competitive prices to ensure that our customers benefit.
2. We respect every customer as our friend. We do business with them sincerely and make friends with them, no matter where they come from.
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