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AM2732B-105DC , 2048 X 8 - BIT / 4096 X 8 - BIT EPROM
AM2732B-105DI , 2048 X 8 - BIT / 4096 X 8 - BIT EPROM
AM2732B-150DC , 2048 X 8 - BIT / 4096 X 8 - BIT EPROM
AM2732B-150DI , 2048 X 8 - BIT / 4096 X 8 - BIT EPROM
ADUC7024BCP62-ADUC7025BCP32-ADUC7026BST62
Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU
Precision Analog Microcontroller
12-bit Analog I/O, ARM7TDMI® MCU
FEATURES
Analog I/O Multi-Channel, 12-bit, 1MSPS ADC
- Up to 16 ADC channels *
Fully differential and single-ended modes
0 to VREF Analog Input Range
12-bit Voltage Output DACs - Up to 4 DAC outputs available*
On-Chip 20ppm/°C Voltage Reference
On-Chip Temperature Sensor (±3°C)
Uncommitted Voltage Comparator
Microcontroller
ARM7TDMI Core, 16/32-bit RISC architecture
JTAG Port supports code download and debug
Clocking options: - Trimmed On-Chip Oscillator (± 3%)
- External Watch crystal
- External clock source
45MHz PLL with Programmable Divider
Memory
62k Bytes Flash/EE Memory, 8k Bytes SRAM
In-Circuit Download, JTAG based Debug
Software triggered in-circuit re-programmability
On-Chip Peripherals
UART, 2 X I2C and SPI Serial I/O
Up to 40-Pin GPIO Port*
4 X General Purpose Timers
Wake-up and Watchdog Timers
Power Supply Monitor
Three-phase 16-bit PWM generator*
PLA – Programmable Logic (Array)
Power
Specified for 3V operation
Active Mode: 3mA (@1MHz)
50mA (@45MHz)
Packages and Temperature Range From 40 lead 6x6mm LFCSP to 80 pin LQFP*
Fully specified for –40°C to 125°C operation
Tools
Low-Cost QuickStart Development System
Full Third-Party Support * Package, PWM, GPIO availability and number of Analog I/O
depend on part model. See page 9.
APPLICATIONS
Industrial Control and Automation Systems
Smart Sensors, Precision Instrumentation
Base Station Systems, Optical Networking (See general description on page 11)
FUNCTIONAL BLOCK DIAGRAM Figure 1
Rev. PrB
TABLE OF CONTENTS ADuC702x—Specifications ............................................................3
Terminology......................................................................................6
Absolute Maximum Ratings............................................................7
Ordering Guide.............................................................................9
Pin function descriptions..............................................................10
General Description.......................................................................19
Overview of the ARM7TDMI core..........................................19
Memory organisation.................................................................21
ADC circuit information...............................................................26
General Overview.......................................................................26
ADC Transfer Function.............................................................26
Typical Operation.......................................................................27
Converter operation...................................................................29
Driving the analog inputs..........................................................30
ADC Calibration........................................................................30
Temperature Sensor...................................................................30
Bandgap Reference.....................................................................30
Nonvolatile Flash/EE Memory.....................................................32
Flash/EE memory overview......................................................32
Flash/EE Memory and the ADuC702x....................................32
Flash/EE memory security........................................................32
Flash/EE Control Interface........................................................33
Execution time from SRAM and FLASH/EE.........................34
Reset and Remap........................................................................36
Other analog peripherals...............................................................37
DAC..............................................................................................37
Power Supply Monitor...............................................................39
Comparator.................................................................................39
Oscillator and PLL - Power control.........................................40
Digital peripherals..........................................................................42
Three-phase PWM.....................................................................42
General Purpose I/O..................................................................49
Serial Port Mux...........................................................................52
Programmable Logic Array (PLA)...........................................62
Processor reference peripherals....................................................65
Interrupt System.........................................................................65
Timers..........................................................................................67
ADuC702x Hardware Design considerations............................75
Power supplies............................................................................75
Grounding and Board Layout Recommendations.................75
Clock Oscillator..........................................................................76
Power-on reset operation..........................................................76
Typical sysem configuration.....................................................77
Development Tools........................................................................78
In-Circuit Serial Downloader...................................................78
Outline Dimensions.......................................................................79
ADUC702X—SPECIFICATIONS 1
Table 1. (AVDD = IOVDD = 2.7 V to 3.6 V, VREF = 2.5 V Internal Reference, fCORE = 45MHz, All specifications TA = TMAX to TMIN,
unless otherwise noted.)
Temperature Range -40° to +85°C 2 All ADC Channel Specifications are guaranteed during normal MicroConverter core operation. These specification apply to all ADC input channels.
4 These numbers are not production tested but are supported by design and/or characterization data on production release. Based on external ADC system components, the user may need to execute a system calibration to remove external endpoint and achieve these specifications..
6 SNR calculation includes distortion and noise components. Channel-to-channel crosstalk is measured on adjacent channels.
8 The input signal can be centered on any dc common-mode voltage (VCM) as long as this value is within the ADC voltage input range specified. When using an external reference input pin, the internal reference must be disabled by setting the lsb in the REFCON Memeory Mapped Register to 0.
10 Endurance is qualified to 50,000 cycles as per JEDEC Std. 22 method A117 and measured at -40°C, +25°C and +85°C. Typical endurance at 25°C is 70,000 cycles. Retention lifetime equivalent at junction temperature (Tj) = 55°C as per JEDEC Std. 22 method A117. Retention lifetime will derate with junction temperature.
12 Test carried out with a maximum of 20 I/O set to a low output level. Power supply current consumption is measured in normal, idle and power-down modes under the following conditions: Normal Mode: TBD Idle Mode: TBD Power-Down: TBD DVDD power supply current increases typically by TBD mA during a Flash/EE memory program or erase cycle.
