
Analog Integrated Circuit Device Data
Freescale Semiconductor
7
PC34708
Internal Block Diagram
Simplified Internal Diagram
3
Internal Block Diagram
3.1
Simplified Internal Diagram
Figure 2. PC34708 Simplified Internal Block Diagram
BP
RESE
TB
RES
ETBM
C
U
WD
I
Switchers
GNDADC
ADIN11
MUX
10 Bit GP
ADC
INT
CL
K
3
2
K
XT
AL
1
XT
AL
2
GNDRT
C
LICELL
GPIO Control
G
P
IOL
V
1
G
P
IOL
V
2
RTC +
Calibration
GNDSW2
SW2FB
SW2LX
SW1IN
SW2IN
O/P
Drive
`
GNDSW1A
SW1FB
SW3IN
O/P
Drive
GNDSW3
SW3FB
SW3LX
GNDSWBST
SWBSTFB
SWBSTIN
SWBSTLX
O/P
Drive
PWRON1
PUM
S1
MC34708
Block Diagram
Rev 0.66
Freescale
Semiconductor
Confidential
Proprietary
Monitor
Timer
O/P
Drive
PLL
32 KHz
Crystal
Osc
STANDBY
G
P
IOL
V
3
To Interrupt
Section
Die Temp &
Thermal Warning
Detection
LCELL
Switch
Enables &
Control
SPI Result
Registers
Interrupt
Inputs
GNDC
T
R
L
Core Control Logic, Timers, & Interrupts
32 KHz
Internal
Osc
G
P
IOL
V
4
CHRGL
EDR
Battery Interface &
Protection
LICELL, UID, Die Temp
ADIN10
CL
K3
2
K
M
C
U
GNDREG1
GNDREG2
ADIN9
A/D Result
A/D
Control
IC
T
EST
32 KHz
Buffers
Output Pin
Input Pin
Bi-directional Pin
Package Pin Legend
SPI
Interface
+
Muxed
I2C
Optional
Interface
CS
CLK
GNDSPI
MISO
SPI
Registers
MOSI
Shift Register
SPIVCC
To Enables & Control
To
Trimmed
Circuits
SPI
Control
Logic
Trim-In-Package
Startup
Sequencer
Decode
Trim?
PUMSx
Control
Logic
Li Cell
Charger
SW2
LP
1000 mA
Buck
SW3
INT MEM
500 mA
Buck
SWBST
380 mA
Boost
Voltage /
Current
Sensing &
Translation
MC34708
SW4
Dual Phase
DDR
1000 mA
Buck
VSRTC
VSRTC
VPLL
VPLL
50 mA
Pass
FET
SPI Control
VBUS
VINUSB
VUSB
UID
C
o
nn
ec
to
r
Int
erf
ace
Best
of
Supply
LIC
E
L
BP
Reference
Generation
VCOREDIG
GNDCORE
VCORE
VCOREREF
VBUS/ID
Detectors, Host
Auto detection
UART Switches
Audio Switches
VUSB
Regulator
VINPLL
PUM
S2
PWRON2
G
L
BRST
SW5IN
O/P
Drive
GNDSW5
SW5FB
SW5LX
SW5
I/O
1000 mA
Buck
VUSB2
350mA
VDACDRV
VDAC
VUSB2
VUSB2DRV
VDAC
250mA
G
NDACHRG
SW1ALX
DVS
CONTROL
Coulomb
Counter
CFP
CFN
BATTISNSCCN
CCOUT
To SPI
CHRG
L
E
DG
DM
DP
DPLUS
DMINUS
OVP
SPKR
SW1PWGD
SW2PWGD
PWM
Outputs
PWM
1
PWM
2
SPKL
MIC
RXD
TXD
GNDSW1B
O/P
Drive
SW1BLX
SW4AIN
GNDSW4A
SW4FBA
O/P
Drive
SW4ALX
SW4BIN
GNDSW4B
SW4BFB
O/P
Drive
SW4BLX
GNDUSB
SW4CFG
L
E
DVDD
VDDLP
VGEN1
250mA
VGEN2DRV
VGEN2
VGEN2
250mA
Pass
FET
VGEN1
Pass
FET
VINGEN1
PUM
S3
PUM
S4
SDWNB
PRETM
R
TRI
C
K
L
ESEL
C
HRGF
B
BATT
ISNSN
BATT
IS
N
S
P
BP
CHR
GLX
VB
U
S
V
IN
AUXVI
N
GA
UX
G
BAT
BPSNS
GO
T
G
VAUX
Switching Charger
Interface and Control, Protection,
Trickle Generation
SW1
Dual Phase
GP
2000 mA
Buck
SW1CFG
VALWAYS
SW1VSSSNS
BPTHERM
NTCREF
BATT
BATTISNSCCP
IT
RIC
PUM
S5
G
P
IOV
DD
GNDG
PIO
GNDREF1
GNDREF2
GNDREF
LDOVDD
Pass
FET
GNDCH
RG
ADIN14/TSY1
ADIN15/TSY2
ADIN13/TSX2
TSREF
Touch
Screen
Interface
ADIN12/TSX1
VINREFDDR
VREFDDR
10mA
VREFDDR
VHALF
SUBSANA1
SUBSPWR1
SUBSREF
SUBSANA3
SUBSANA2
SUBSL
DO