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Atmel ATA6264 User Manual
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2
4929B–AUTO–01/07
ATA6264
[Preliminary]
Figure 1-1.
Block Diagram
V
VCORE
V
VPERI
V
VSA
T
V
EVZ
CP Logic
VCORE-
Regulator
Internal Supply
Reference
VPERI-
Regulator
EVZ-
Regulator
VSA
T
-
Regulator
K30
GEVZ
SVSA
T
VSA
T
COMCOI
COMCOO
VCORE
SVCORE
VPERI
SVPERI
COMSA
TI
COMSA
TO
COMEVZO
FBEVZ
EVZ
GNDB
OCEVZ
GKEY
-
Logic
UZP
USP
AMUX
ISO9141
IASG
Serial Interface
W
atchdog
Reset
RESQ2
IASG1
IASG2
IASG4
ISENS
GND
A
UZP
IASG5
IASG3
K2
K1
GNDD
RESQ
MOSI
VSA
T
SVSA
T
V
BA
TT
V
BA
TT
CP_OUT
IREF
VINT
USP
SCLK
SSQ
CP
K15
MISO
RxD2
TxD1
RxD1
TxD2
1
3
Table of Contents
1 Description
1
Features
1
Block Description
3
Integrated Boost Converter EVZ
3
Integrated Buck Converter VSAT
3
Integrated Buck Converter VCORE
3
Linear Regulator VPERI
3
Blocks Included
3
2 Pin Configuration
4
3 Absolute Maximum Ratings
6
4 Functional Range
8
Protection against Substrate Currents
9
5 Supply Currents
10
Discharger Circuit
11
Initial Programming of the ATA6264
11
Start-Up and Power-Down Procedure
14
Start-Up Procedure if VVCORE Is Programmed to be 5V or 2.5V
15
The Power-Down Procedure Takes Place in Different Phases
15
Start-Up Procedure if VVCORE Programmed to be 1.88V
16
The Power-Down Procedure for VVCORE Is Programmed to be 1.88V
17
6 Power Supply Sequencing
18
7 Charge Pump
20
8 GKEY Function
22
9 EVZ Step-Up Regulator
24
10 VSAT Power Supply
30
11 VPERI Power Supply
33
12 VCORE Power Supply
35
13 USP Comparator for General Purpose
39
14 Reference Voltage and Reference Current Generation
40
15 Reset Function (Pin RESQ and Pin RESQ2)
41
16 Watchdog Function
47
17 LIN/ISO 9141 Interfaces
54
18 Voltage/Current Sources (Iasgx Sources)
58
19 AMUX (Analog Multiplexer for Voltage Measurements)
62
20 UZP Buffer
65
21 Chip Temperature Measurement
67
22 Serial Interface Commands
68
Overview
68
Set Commands
70
Serial Interface Status Register
74
23 Test Mode
76
24 Application Circuits
77
25 Ordering Information
79
26 Package Information
79
27 Revision History
80
4
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Atmel ATA6264 Specifications
General
Brand
Atmel
Model
ATA6264
Category
Accessories
Language
English
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