參數(shù)資料
型號(hào)： MM908E621ACDWB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54
封裝： 17.90 X 7.50 MM, 0.65 MM PITCH, PLASTIC, SOIC-54
文件頁數(shù)： 50/62頁
文件大?。?/td> 917K
代理商： MM908E621ACDWB
Analog Integrated Circuit Device Data
54
Freescale Semiconductor
908E621
TYPICAL APPLICATIONS
PCB level programming
If the IC is soldered onto the pcb board, its typically not
possible to separately power the MCU with +5V. The whole
system has to be powered up providing VSUP (see
Figure 31. Normal Monitor Mode Circuit
Table 22 summarizes the possible configurations and the
necessary setups.
MM908E621
RST_A
RST
IRQ_A
IRQ
VSSA/VREFL
VDDA/VREFH
EVDD
VDD
EVSS
VSS
VSUP[1:8]
GND[1:4]
4.7F
100nF
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
VDD
DATA
CLK
VDD
10k
VDD
VTST
VSUP
47F
+
100nF
10
9
T2OUT
R2IN
T2IN
R2OUT
Table 22. Monitor Mode Signal Requirements and Options
Mode
IRQ RST TESTMODE
Reset
Vector
Serial
Communication
Mode
Selection
ICG
COP
Normal
Request
Time-out
Communication Speed
PTA0
PTA1
PTB3
PTB4
External
Clock
Bus
Frequency
Baud
Rate
Normal
Monitor
VTST
VDD
1
X
1
0
1
OFF
disabled
9.8304
MHz
2.4576
MHz
9600
Forced
Monitor
VDD
1
$FFFF
(blank)
10
X
OFF
disabled
9.8304
MHz
2.4576
MHz
9600
GND
ON
disabled
—
Nominal
1.6MHz
Nominal
6300
User
VDD
0
not $FFFF
(not blank)
X
ON
enabled
—
Nominal
1.6MHz
Nominal
6300
Notes
1.
PTA0 must have a pullup resistor to VDD in monitor mode
2.
External clock is a 4.9152MHz, 9.8304MHz or 19.6608MHz canned oscillator on OCS1
3.
Communication speed with external clock is depending on external clock value. Baud rate is bus frequency / 256
4.
X = don’t care
5.
VTST is a high voltage VDD +3.5V ≤ VTST ≤ VDD +4.5V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MM908E621ACDWB/R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror
MM908E621ACDWBR2 功能描述:8位微控制器 -MCU QUAD HB / TRIPLE HS 841B RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MM908E622 制造商:FREESCALE 制造商全稱: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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