MM908E624ACEW/R2 FREESCALE [Freescale Semiconductor, Inc], MM908E624ACEW/R2 Datasheet - Page 31

• Manufacturer Part Number: MM908E624ACEW/R2
• Description: Integrated Triple High Side Switch with Embedded MCU and LIN Serial Communicationfor Relay Drivers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

DEVELOPMENT SUPPORT
embedded typically all the development tools available for
the MCU also apply for this device, however due to the fact
of the additional analog die circuitry and the nominal +12 V
supply voltage some additional items have to be considered:
development support see the MC68HC908EY16 data sheet -
section development support.
with VSUP (12 V) instead as described in
Analog Integrated Circuit Device Data
Freescale Semiconductor
RS232
2
3
5
DB-9
As the 908E624 has the MC68HC908EY16 MCU
• nominal 12 V rather than 5.0 V or 3.0 V supply
• high voltage V
• MCU monitoring (Normal request timeout) has to be
For a detailed information on the MCU related
Of course it is also possible to supply the whole system
terminal, but IRQ_A terminal
disabled
1µF
1µF
+
+
1
3
4
5
7
8
C1+
C1-
C2+
C2-
T2
R2
OUT
IN
TST
MAX232
might be applied not only to IRQ
R2
GND
T2
V
OUT
V+
V-
CC
IN
16
15
2
6
10
9
V
2
74HC125
DD
Figure 18. Normal Monitor Mode Circuit (MCU only)
+
+
1
1µF
1µF
3
Figure
+
1µF
6
74HC125
TYPICAL APPLICATIONS
4
19,
5
page
V
DD
32.
10k
V
the manufacturing process — first on chip level, before the IC
is soldered onto a PCB board and second after the IC is
soldered onto the PCB board.
Chip Level Programming
with +5.0 V (see
with VSUP, in this setup all the analog terminal should be left
open (e.g. VSUP[1:2]) and interconnections between MCU
and analog die have to be separated (e.g.
sheet - section development support.
TST
9.8304MHz CLOCK
The programming is principally possible at two stages in
On Chip level the easiest way is to only power the MCU
This mode is well described in the MC68HC908EY16 data
DATA
CLK
Figure
VSUP[1:2]
GND
RST
RST_A
IRQ
IRQ_A
PTC4/OSC1
PTA0/KBD0
18) and not to provide the analog chip
MM908E624
PTA1/KBD1
PTB4/AD4
PTB3/AD3
TYPICAL APPLICATIONS
WDCONF
VREFH
VREFL
AGND
VDDA
EVDD
VSSA
EVSS
VDD
IRQ
100nF
-
10k
10k
10k
IRQ_A
+5V
908E624
).
+5V
4.7µF
31