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参数资料
型号： MM908E621ACDWBR2
厂商： Freescale Semiconductor
文件页数： 44/60页
文件大小： 0K
描述： IC SW QUAD HB/TRPL HISID 54-SOIC
标准包装： 1,000
应用： 自动镜像控制
核心处理器： HC08
程序存储器类型： 闪存（16 kB）
控制器系列： 908E
RAM 容量： 512 x 8
接口： SCI，SPI
输入/输出数： 12
电源电压： 9 V ~ 16 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 54-BSSOP（0.295"，7.50mm 宽）裸露焊盘
包装： 带卷 (TR)
供应商设备封装： 54-SOICW-EP
Analog Integrated Circuit Device Data
Freescale Semiconductor
49
908E621
TYPICAL APPLICATIONS
TYPICAL APPLICATIONS
DEVELOPMENT SUPPORT
As the 908E621 has the MC68HC908EY16 MCU
embedded, typically all the development tools available for
the MCU also apply for this device. However, due to the
additional analog die circuitry and the nominal +12 V supply
voltage, some additional items have to be considered:
nominal 12 V rather than the 5.0 or 3.0 V supply
high voltage VTST might be applied not only to IRQ pin,
but IRQ_A pin
MCU monitoring (Normal request timeout) has to be
disabled
For a detailed information on the MCU related
development support, see the MC68HC908EY16 datasheet -
section development support.
The programming is principally possible at two stages in
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
At the Chip level, the easiest way is to only power the MCU
with +5.0 V (see Figure 30), and not to provide the analog
chip with VSUP. In this setup, all the analog pins should be
left open (e.g. VSUP[1:8]), and interconnections between the
MCU and analog die have to be separated (e.g. IRQ - IRQ_A).
This mode is well described in the MC68HC908EY16
datasheet, section development support.
Figure 30. Normal Monitor Mode Circuit (MCU only)
Of course it is also possible to supply the whole system
with VSUP instead (12 V) as described in Figure 31, page 50.
PCB level programming
If the IC is soldered onto the pcb board, it is typically not
possible to separately power the MCU with +5.0 V. The
whole system has to be powered up providing VSUP (see
Figure 31).
MM908E621
RST_A
RST
IRQ_A
IRQ
VSUP[1:8]
GND[1:4]
PTC4/OSC1
PTB3/AD3
PTB4/AD4
PTA0/KBD0
PTA1/KBD1
TESTMODE
MAX232
10k
RS232
DB-9
1
3
C1+
C1-
4
5
C2+
C2-
7
8
2
3
5
VCC
GND
16
15
2
V+
V-
6
1F
+
1F
+
1F
+
1F
2
1
3
65
4
74HC125
9.8304MHz CLOCK
+5V
DATA
CLK
+5V
10k
VTST
10
9
T2OUT
R2IN
T2IN
R2OUT
VSSA/VREFL
VDDA/VREFH
EVDD
VDD
EVSS
VSS
4.7F
100nF
+5V
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MM908E621ACPEK 功能描述:8位微控制器 -MCU QUAD H-B/3-HS W/MCU & LI RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MM908E621ACPEKR2 功能描述:8位微控制器 -MCU QUAD HB AND TRIPLE HS RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MM908E622 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-Bridge, Triple High-Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror
MM908E622_08 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-bridge, Triple High Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror
MM908E622ACDR2 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-Bridge, Triple High-Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror
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