ADUC7024_15 Datasheet, PDF (29/104 Pages) Analog Devices – Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU

Data Sheet
ADuC7019/20/21/22/24/25/26/27/28/29
Pin No.
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Mnemonic
P4.6/AD14/PLAO[14]
P4.7/AD15/PLAO[15]
BM/P0.0/CMPOUT/PLAI[7]/MS0
P0.6/T1/MRST/PLAO[3]
TCK
TDO
P0.2/PWM2L/BHE
IOGND
IOVDD
LVDD
DGND
P3.0/AD0/PWM0H/PLAI[8]
P3.1/AD1/PWM0L/PLAI[9]
P3.2/AD2/PWM1H/PLAI[10]
P3.3/AD3/PWM1L/PLAI[11]
P2.4/PWM0H/MS0
P0.3/TRST/A16/ADCBUSY
P2.5/PWM0L/MS1
P2.6/PWM1H/MS2
RST
P3.4/AD4/PWM2H/PLAI[12]
P3.5/AD5/PWM2L/PLAI[13]
IRQ0/P0.4/PWMTRIP/PLAO[1]/MS1
IRQ1/P0.5/ADCBUSY/PLAO[2]/MS2
P2.0/SPM9/PLAO[5]/CONVSTART
P0.7/ECLK/XCLK/SPM8/PLAO[4]
XCLKO
XCLKI
Description
General-Purpose Input and Output Port 4.6/External Memory Interface/Programmable Logic
Array Output Element 14.
General-Purpose Input and Output Port 4.7/External Memory Interface/Programmable Logic
Array Output Element 15.
Multifunction I/O Pin. Boot Mode. The ADuC7026/ADuC7027 enter UART download mode if BM
is low at reset and execute code if BM is pulled high at reset through a 1 kΩ resistor/General-
Purpose Input and Output Port 0.0/Voltage Comparator Output/Programmable Logic Array
Input Element 7/External Memory Select 0.
Multifunction Pin, Driven Low After Reset. General-Purpose Output Port 0.6/Timer1 Input/
Power-On Reset Output/Programmable Logic Array Output Element 3.
JTAG Test Port Input, Test Clock. Debug and download access.
JTAG Test Port Output, Test Data Out. Debug and download access.
General-Purpose Input and Output Port 0.2/PWM Phase 2 Low-Side Output/External Memory
Byte High Enable.
Ground for GPIO (see Table 78). Typically connected to DGND.
3.3 V Supply for GPIO (see Table 78) and Input of the On-Chip Voltage Regulator.
2.6 V Output of the On-Chip Voltage Regulator. This output must be connected to a 0.47 µF
capacitor to DGND only.
Ground for Core Logic.
General-Purpose Input and Output Port 3.0/External Memory Interface/PWM Phase 0 High-Side
Output/Programmable Logic Array Input Element 8.
General-Purpose Input and Output Port 3.1/External Memory Interface/PWM Phase 0 Low-Side
Output/Programmable Logic Array Input Element 9.
General-Purpose Input and Output Port 3.2/External Memory Interface/PWM Phase 1 High-Side
Output/Programmable Logic Array Input Element 10.
General-Purpose Input and Output Port 3.3/External Memory Interface/PWM Phase 1 Low-Side
Output/Programmable Logic Array Input Element 11.
General-Purpose Input and Output Port 2.4/PWM Phase 0 High-Side Output/External Memory
Select 0.
General-Purpose Input and Output Port 0.3/JTAG Test Port Input, Test Reset/ADCBUSY Signal Output.
General-Purpose Input and Output Port 2.5/PWM Phase 0 Low-Side Output/External Memory
Select 1.
General-Purpose Input and Output Port 2.6/PWM Phase 1 High-Side Output/External Memory
Select 2.
Reset Input, Active Low.
General-Purpose Input and Output Port 3.4/External Memory Interface/PWM Phase 2 High-Side
Output/Programmable Logic Array Input 12.
General-Purpose Input and Output Port 3.5/External Memory Interface/PWM Phase 2 Low-Side
Output/Programmable Logic Array Input Element 13.
Multifunction I/O Pin. External Interrupt Request 0, Active High/General-Purpose Input and
Output Port 0.4/PWM Trip External Input/Programmable Logic Array Output Element 1/
External Memory Select 1.
Multifunction I/O Pin. External Interrupt Request 1, Active High/General-Purpose Input and
Output Port 0.5/ADCBUSY Signal Output/Programmable Logic Array Output Element 2/External
Memory Select 2.
Serial Port Multiplexed. General-Purpose Input and Output Port 2.0/UART/Programmable Logic
Array Output Element 5/Start Conversion Input Signal for ADC.
Serial Port Multiplexed. General-Purpose Input and Output Port 0.7/Output for External Clock
Signal/Input to the Internal Clock Generator Circuits/UART/Programmable Logic Array Output
Element 4.
Output from the Crystal Oscillator Inverter.
Input to the Crystal Oscillator Inverter and Input to the Internal Clock Generator Circuits.
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