MCZ33784EF Freescale Semiconductor, MCZ33784EF Datasheet

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MCZ33784EF

Manufacturer Part Number
MCZ33784EF
Description
IC SENSOR DBUS DSI 2.02 16-SOIC
Manufacturer
Freescale Semiconductor
Type
Sensor Interfacer
Datasheets

Specifications of MCZ33784EF

Input Type
Analog
Output Type
Digital
Interface
Bus
Current - Supply
4mA
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Sensing Axis
X, Y
Acceleration
250 g
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Freescale Semiconductor
Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2008 - 2009. All rights reserved.
DSI 2.02 Sensor Interface
version 2.02 compatible device, optimized as a sensor interface. The
device contains circuits to power sensors such as accelerometers,
and to digitize the analog level from the sensor. The device is
controlled by commands over the bus, and returns measured data
and other information over the bus.
Features
• DSI version 2.02 compatible
• 2-channel, 10-bit analog-to-digital converter (ADC)
• 3 pins configurable as logic inputs or outputs
• Provides regulated +5.0v output for sensor power from bus
• On-board clock (no external elements required)
• Includes bus switches on bus and bus return
• Pb-free packaging designated by suffix code EF
The 33784 is a slave, Distributed System Interface Bus (DBUS),
33781
BUS
V
CC
ACCELEROMETER
Figure 1. 33784 Simplified Application Diagram
AGND
XY
REGOUT
RTNIN
AGND
AN0
AN1
I/O0
I/O1
I/O2
(Daisy Chain Shown)
33784
BUSOUT
RTNOUT
H_CAP
TEST1
TEST2
BUSIN
TOUT
IDDQ
MCZ33784EF/R2
Device
BUSIN
RTNIN
ORDERING INFORMATION
SENSOR INTERFACE
EF SUFFIX (PB-FREE)
33784
16-LEAD SOICN
98ASB42566B
- 40°C to 125°C
Document Number: MC33784
Temperature
BUSOUT
Range (T
RTNOUT
33784
A
)
Rev 3.0, 11/2009
To other
Slaves
33784
16 SOICN
Package

Related parts for MCZ33784EF

MCZ33784EF Summary of contents

Page 1

... CC ACCELEROMETER Figure 1. 33784 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2008 - 2009. All rights reserved. Device MCZ33784EF/R2 33784 REGOUT BUSOUT RTNIN RTNOUT AGND BUSIN ...

Page 2

... Response Generation SEL 10-Bit ADC MUX Low Side Bus Switch H_CAP 2.2μF or 4.7μF Typical BUSOUT TOUT Power REGOUT Management 5.0V Regulator C = 2.2μ Reference Bias Currents AGND POR IDDQ AN0 AN1 RTNOUT Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 3

... Ground Reference 9 TEST1 Test 10 IDDQ Test 11 TOUT Test 12 RTNOUT Power 13 RTNIN Power 14 BUSOUT Output 15 BUSIN Input 16 H_CAP Output Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS 1 REGOUT 16 H_CAP TEST2 2 15 BUSIN 3 I/O0 14 BUSOUT 4 I/O1 13 RTNIN 5 I/O2 12 RTNOUT 6 AN0 11 TOUT 7 AGND ...

Page 4

... RO V ESD ±2000 ±200 ±750 ±500 T -55 to 150 S T -40 to 125 A T -40 to 150 J R 125 θ θ Note 3 PPRT ZAP = 100pF, R ZAP = 1500Ω), ESD2 testing is Analog Integrated Circuit Device Data Freescale Semiconductor Unit °C °C °C °C/W °C/W °C ...

Page 5

... Low-side Bus Switch Resistance I = 160mA (Bus Switch Active) SWL Notes 400mA BUSIN Q 5. Assured by design. Analog Integrated Circuit Device Data Freescale Semiconductor STATIC ELECTRICAL CHARACTERISTICS ≤ 30V, 6.0V ≤ V ≤ 30V, - 40°C ≤ T BUSIN H_CAP Symbol Min I Q – V RECT – – ...

Page 6

... LSB -3.5 – +3.5 LSB Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 7

... L Output High (I = -500μA) L POR Detect Thresholds Voltage at HCAP Voltage at REGOUT Notes 8. Assured by design. Analog Integrated Circuit Device Data Freescale Semiconductor STATIC ELECTRICAL CHARACTERISTICS ≤ 30V, 6.0V ≤ V ≤ 30V, - 40°C ≤ T BUSIN H_CAP Symbol Min ADC -4.0 ABS ADC – ...

Page 8

... Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 9

... Frame Threshold BUSIN Closed BUS Switches Open Internal Reset RESPONSE CURRENT BUSIN 3.0V Analog Integrated Circuit Device Data Freescale Semiconductor TIMING DIAGRAMS End of Initialization Command t BS Figure 4. Bus Switch and Reset Timing 9.0mA 7.0mA 1.0mA t ITR_R t RSP_R Figure 5. Response Current Timing ...

Page 10

... This pin is the switched BUSIN signal and is connected to the BUSIN pin of the next device in the daisy chain. BUS RETURN OUT (RTNOUT) This pin is the switched RTNIN signal and is connected to the RTNIN pin of the next device in the daisy chain. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 11

... REGOUT pin. A bypass capacitor is required on the REGOUT pin to keep the regulator stable. All current supplied by the regulator is derived from the external capacitor attached to H_CAP. Analog Integrated Circuit Device Data Freescale Semiconductor Receiver Control Logic Clock Power Stage Transmitter Sensing & ...

Page 12

... As the response current is switched on and off, the transitions are slew-rate limited to reduce EMI. Without the slew control, the fast transitions could generate higher frequency harmonics, that could interfere with receivers tuned to frequencies well above the data rate of this device. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 13

... BUSOUT, and RTNIN to RTNOUT. Now all communication that is seen on one pin will be passed to the other. The Master IC can send a command through the initialized device to the Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION next un-initialized device in the daisy chain. The process is repeated until every device in the daisy chain has been initialized with a unique address ...

Page 14

... Table 6. 8-Bit ADC Value Mapping Hex Description FA Prohibited F9 Prohibited F8 G Range • • • • • • Range 07 Prohibited • • • • • • 02 Prohibited 01 Prohibited 00 Prohibited OUT pin, which is only active in Analog Integrated Circuit Device Data Freescale Semiconductor pin OUT ...

Page 15

... Transfers are full duplex. Command messages from the master occur at the same time as responses from the slaves. Slave responses to commands occur during the next command message. This allows slaves Analog Integrated Circuit Device Data Freescale Semiconductor Data Command Buffer Data Clock DBUS Registers ...

Page 16

... Figure 8. In this case, the master will miss Command N+4 Response N+3 Table 7. Response, page 23. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 17

... Analog Integrated Circuit Device Data Freescale Semiconductor the two match, the message is considered valid and the 33784 will act on the message accordingly. If the calculated CRC does not match the CRC included within the message, the 33784 will ignore the transmission and the message will be discarded ...

Page 18

... If the addresses do not match, the device will do nothing and no response will be generated. 10. 9. Figure 9. Because this is a long-word Command Word Type & ESW (8-bit) ESW (10-bit) Word Type LW SW & ESW (8-bit) ESW (10-bit) Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 19

... Figure 11. The response to this Analog Integrated Circuit Device Data Freescale Semiconductor The I/O bits reflect the logic states of the I/O pins. These states are latched into an internal register after the Request Status command is received (approximately TBD μs after the bus rises above the frame threshold), and are held until the response is transmitted ...

Page 20

... All values are approximate and are not production tested. 4.4μs 0.1μs Conversion Complete Word Type & ELW & ESW (8-bit ESW (10-bit) Word Type & ELW & ESW (8-bit ESW (10-bit) Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 21

... If the DR bit for a specific I/O pin is set to 0, then that pin will be an input and the Lx bit in the command will have no affect on the state of the pin. Analog Integrated Circuit Device Data Freescale Semiconductor Address Command – – ...

Page 22

... ESW (10-bit) Word Type LW & ELW DR1 DR0 SW & ESW (8-bit) ESW (10-bit) Word Type & ELW SW & ESW (8-bit) ESW (10-bit) Word Type 0 0 FPA LW & ELW R SW & ESW (8-bit) ESW (10-bit) Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 23

... Any attempts to change the format will be ignored while in the enhanced mode. Analog Integrated Circuit Device Data Freescale Semiconductor The 33784 will only act on this command if the address bits in the command match the address that the device was initialized with the address bits are 0000. ...

Page 24

... Register settings, any command to change them, other than this register back to 0000, will be ignored. Command Word Type & ELW SW & ESW (8-bit) ESW (10-bit) Word Type DAT DAT DAT DAT LW & ELW & ESW (8-bit) ESW (10-bit) Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 25

... DR [2:0] = Direction Output. L [2:0] = Level to output configured as outputs. “–” = Don’t care bit. Can Analog Integrated Circuit Device Data Freescale Semiconductor are summarized in page 27. The four-bit CRC, which appended to the end of every command and every response, has been committed. ...

Page 26

... R/W = Shows if last command was a read Or Write. Write = 1. ADDR[2:0] = Pointer to Format Control Register that was accessed. DATA[3:0] = Data in the pointed-to Format Control Register BSL 0 PA3 PA2 PA1 BSL 0 0 IO2 IO1 DR2 DR1 Analog Integrated Circuit Device Data Freescale Semiconductor D0 PA0 IO0 B2 DR0 FPAR B2 ...

Page 27

... Request AN1 5 B9 Reserved 6 Clear 7 Reserved 8 Reserved 9 Format Control A Reserved B Reserved C Reserved D Reserved for test E Reserved F Legend B [9:0] = Data bits. Analog Integrated Circuit Device Data Freescale Semiconductor 10-Bit ESW 8-Bit ESW No Response No Response Response No Response Response No Response No Response No Response No Response No Response No Response ...

Page 28

... PACKAGING PACKAGE DIMENSIONS For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. 33784 28 PACKAGING PACKAGE DIMENSIONS EF SUFFIX (PB-FREE) 98ASB42566B ISSUE M Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 29

... REVISION DATE DESCRIPTION OF CHANGES • Initial Release 3/2008 1.0 • Added RoHS logo to page 1, provided 7/2008 2.0 • Changed Part Number from PCZ33784EF/R2 to MCZ33784EF/R2 on page 1. 11/2009 3.0 Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY temperature parameters, page 8 t RSP_R ...

Page 30

... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc ...

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