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Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU ADuC848BSZ32-5
GENERAL DESCRIPTION
The ADuC845, ADuC847, and ADuC848 are single-cycle, 12.58 MIPs, 8052 core upgrades to the ADuC834 and ADuC836. They include additional analog inputs for applications requiring more ADC channels. The ADuC845, ADuC847, and ADuC848 are complete smart transducer front ends. The family integrates high resolution Σ-Δ ADCs with flexible, up to 10-channel, input multiplexing, a fast 8-bit MCU, and program and data Flash/EE memory on a single chip.
FEATURES
High resolution Σ-Δ ADCs 2 independent 24-bit ADCs on the ADuC845 Single 24-bit ADC on the ADuC847 and single 16-bit ADC on the ADuC848 Up to 10 ADC input channels on all devices 24-bit no missing codes 22-bit rms (19.5 bit p-p) effective resolution Offset drift 10 nV/°C, gain drift 0.5 ppm/°C chop enabled Memory 62-kbyte on-chip Flash/EE program memory 4-kbyte 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 download (no external hardware) High speed user download (5 sec) 2304 bytes on-chip data RAM 8051-based core 8051-compatible instruction set High performance single-cycle core 32 kHz external crystal On-chip programmable PLL (12.58 MHz max) 3 × 16-bit timer/counter 24 programmable I/O lines, plus 8 analog or digital input lines 11 interrupt sources, two priority levels Dual data pointer, extended 11-bit stack pointer On-chip peripherals Internal power-on reset circuit 12-bit voltage output DAC Dual 16-bit Σ-Δ DACs On-chip temperature sensor (ADuC845 only) Dual excitation current sources (200 μA) Time interval counter (wake-up/RTC timer) UART, SPI®, and I2C® serial I/O High speed dedicated baud rate generator (incl. 115,200) Watchdog timer (WDT) Power supply monitor (PSM)
Power Normal: 4.8 mA max at 3.6 V (core CLK = 1.57 MHz) Power-down: 20 μA max with wake-up timer running Specified for 3 V and 5 V operation Package and temperature range: 52-lead MQFP (14 mm × 14 mm), −40°C to +125°C 56-lead LFCSP (8 mm × 8 mm), −40°C to +85°C
Specifications
Core Size | 8-Bit |
Speed | 12.58MHz |
Connectivity | I²C, SPI, UART/USART |
Peripherals | POR, PSM, PWM, Temp Sensor, WDT |
Number of I/O | 34 |
Program Memory Size | 32KB (32K x 8) |
Program Memory Type | FLASH |
EEPROM Size | 4K x 8 |
RAM Size | 2.25K x 8 |
Voltage - Supply (Vcc/Vdd) | 4.75 V ~ 5.25 V |
Data Converters | A/D 10x16b; D/A 1x12b, 2x16b |
Oscillator Type | Internal |
Operating Temperature | -40°C ~ 125°C (TA) |
Package / Case | 52-QFP |
Supplier Device Package | 52-MQFP (10x10) |
APPLICATIONS
Multichannel sensor monitoring Industrial/environmental instrumentation Weigh scales, pressure sensors, temperature monitoring Portable instrumentation, battery-powered systems Data logging, precision system monitoring
ORDERING GUIDE
Model1, 2, 3 Temperature Range Package Description Package Option
ADuC845BSZ62-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 5 V S-52-2
ADuC845BSZ62-5-RL −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 5 V S-52-2
ADuC845BSZ62-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 3 V S-52-2
ADuC845BSZ8-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 5 V S-52-2
ADuC845BSZ8-5-RL −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 5 V S-52-2
ADuC845BSZ8-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 3 V S-52-2
ADuC845BCPZ62-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 5 V CP-56-11
ADuC845BCPZ62-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 3 V CP-56-11
ADuC845BCPZ8-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 5 V CP-56-11
ADuC845BCPZ8-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 3 V CP-56-11
ADuC847BSZ62-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 5 V S-52-2
ADuC847BSZ62-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 3 V S-52-2
ADuC847BSZ32-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 32-kbyte, 5 V S-52-2
ADuC847BSZ32-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 32-kbyte, 3 V S-52-2
ADuC847BSZ8-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 5 V S-52-2
ADuC847BSZ8-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 3 V S-52-2
ADuC847BCPZ62-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 5 V CP-56-11
ADuC847BCPZ62-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 3 V CP-56-11
ADuC847BCPZ8-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 5 V CP-56-11
ADuC847BCPZ8-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 3 V CP-56-11
ADuC848BSZ62-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 5 V S-52-2
ADuC848BSZ62-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 62-kbyte, 3 V S-52-2
ADuC848BSZ32-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 32-kbyte, 5 V S-52-2
ADuC848BSZ32-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 32-kbyte, 3 V S-52-2
ADuC848BSZ8-5 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 5 V S-52-2
ADuC848BSZ8-3 −40°C to +125°C 52-Lead MQFP, Lead Free, 8-kbyte, 3 V S-52-2
ADuC848BCPZ62-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 5 V CP-56-11
ADuC848BCPZ62-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 62-kbyte, 3 V CP-56-11
ADuC848BCPZ8-5 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 5 V CP-56-11
ADuC848BCPZ8-3 −40°C to +85°C 56-Lead LFCSP, Lead Free, 8-kbyte, 3 V CP-56-11
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