ADUCM4050BCBZ-R7 datasheet(36/46 Pages) AD

36 / 46 page

ADuCM4050

Data Sheet

Rev. A | Page 36 of 46

DEVELOPMENT SUPPORT

Development support for the ADuCM4050 MCU includes

documentation, evaluation hardware, and development

software tools.

Documentation

The ADuCM4050 Ultra Low Power ARM Cortex-M4F MCU

with Integrated Power Management Hardware Reference details

the functionality of each block on the ADuCM4050 MCU. It

includes power management, clocking, memories, and peripherals.

The ADuCM4050 Ultra Low Power ARM Cortex-M4F MCU

with Integrated Power Management Hardware Reference can be

ordered from any Analog Devices sales office or accessed

electronically on the Analog Devices website at www.analog.com.

Hardware

The EV-COG-AD4050LZ is available to prototype sensor

configuration with the ADuCM4050 MCU.

Software

The EV-COG-AD4050LZ includes a complete development and

debug environment for the ADuCM4050 MCU. The device

family pack for the ADuCM4050 MCU is provided for the IAR

Embedded Workbench for ARM, Keil™, and CrossCore®

embedded studio (CCES) environments.

The device family pack also includes operating system (OS)

aware drivers and example code for peripherals on the device.

REFERENCE DESIGNS

The Circuits from the Lab® web page provides the following for

the ADuCM4050 reference design:

•

Graphical circuit block diagram presentation of signal

chains for a variety of circuit types and applications

•

Drill down links for components in each chain to selection

guides and application information

•

Reference designs applying best practice design techniques

SECURITY FEATURES DISCLAIMER

To the knowledge of Analog Devices, the security features,

when used in accordance with the data sheet and hardware

reference manual specifications, provide a secure method of

implementing code and data safeguards. However, Analog

Devices does not guarantee that this technology provides

absolute security. Accordingly, analog devices hereby disclaims

any and all express and implied warranties that the security

features cannot be breached, compromised, or otherwise

circumvented and in no event is Analog Devices liable for any

loss, damage, destruction, or release of data, information,

physical property, or intellectual property.

MCU TEST CONDITIONS

The ac signal specifications (timing parameters) appearing in

this data sheet include output disable time, output enable time,

and others. Timing is measured on signals when they cross the

voltage threshold (VMEAS ) level as described in Figure 24. All

delays (in nanoseconds or microseconds) are measured between

the point that the first signal reaches VMEAS and the point that

the second signal reaches VMEAS. The value of VMEAS is set to

VBAT/2. The tester pin electronics is shown in Figure 25.

INPUT

OUTPUT

VMEAS

Figure 24. Voltage Reference Levels for AC Measurements (Except Output

Enable/Disable)

VLOAD

NOTES

1. THE WORST-CASE TRANSMISSION LINE DELAY (TD) IS SHOWN AND

CAN BE USED FOR THE OUTPUT TIMING ANALYSIS TO REFLECT THE

TRANSMISSION LINE EFFECT AND MUST BE CONSIDERED.

TRANSMISSION LINE IS FOR LOAD ONLY AND DOES NOT AFFECT

THE DATA SHEET TIMING SPECIFICATIONS.

2. ANALOG DEVICES RECOMMENDS USING THE IBIS MODEL TIMING

FOR A GIVEN SYSTEM REQUIREMENT. IF NECESSARY, A SYSTEM

CAN INCORPORATE EXTERNAL DRIVERS TO COMPENSATE FOR

ANY TIMING DIFFERENCES.

50Ω

70Ω

45Ω

ZO = 50Ω (IMPEDANCE)

TD = 4.04ns ± 1.18ns

50Ω

400Ω

2pF

0.5pF

4pF

DUT

OUTPUT

Figure 25. Equivalent Device Loading for AC Measurements

(Includes All Fixtures)

DRIVER TYPES

Table 27 shows the driver types.

Table 27. Driver Types

DriverType1,2,3 Associated Pins

Type A

P0_00 to P0_03, P0_07, P0_10 to P0_13, P0_15,

P1_00 to P1_10, P1_15, P2_00, P2_01, P2_04 to

P2_14, P3_00 to P3_03, and SYS_HWRST

Type B

P0_08, P0_09, P0_14, P1_11 to P1_14, and P2_02

Type C

P0_04 and P0_05

Type D

P0_06

In single drive mode, the maximum source/sink capacity is 2 mA.

In double drive mode, the maximum source/sink capacity is 4 mA.

At maximum drive capacity, only 16 GPIOs are allowed to switch at any given

point in time.

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