MICROCONTROLLER PARAMETRICS MICROCONTROL" />
參數(shù)資料
型號: MM908E621ACDWBR2
廠商: Freescale Semiconductor
文件頁數(shù): 7/60頁
文件大小: 0K
描述: IC SW QUAD HB/TRPL HISID 54-SOIC
標準包裝: 1,000
應(yīng)用: 自動鏡像控制
核心處理器: HC08
程序存儲器類型: 閃存(16 kB)
控制器系列: 908E
RAM 容量: 512 x 8
接口: SCI,SPI
輸入/輸出數(shù): 12
電源電壓: 9 V ~ 16 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 54-BSSOP(0.295",7.50mm 寬)裸露焊盤
包裝: 帶卷 (TR)
供應(yīng)商設(shè)備封裝: 54-SOICW-EP
Analog Integrated Circuit Device Data
Freescale Semiconductor
15
908E621
ELECTRICAL CHARACTERISTICS
MICROCONTROLLER PARAMETRICS
MICROCONTROLLER PARAMETRICS
SPI INTERFACE TIMING
SPI Operating Recommended Frequency(33)
fSPIOP
0.25
4.0
MHz
State Machine
Reset Low Level Duration after VDD High
tRST
0.8
1.25
1.94
ms
Normal Request Timeout
tNORMREQ
51
80
150
ms
Window Watchdog Timer(34)
Watchdog Period (WDP1:0 = 00)
tWD80
52
80
124
ms
Watchdog Period (WDP1:0 = 01)
tWD40
26
40
62
ms
Watchdog Period (WDP1:0 = 10)
tWD20
13
20
31
ms
Watchdog Period (WDP1:0 = 11)
tWD10
6.5
10
15.5
ms
Notes
33.
This parameter is guaranteed by process monitoring but is not production tested.
34.
This parameter is guaranteed only if correct trimming was applied. Additionally See Watchdog Period Range Value (AWD Trim) on page
Table 5. Microcontroller
For a detailed microcontroller description, refer to the MC68HC908EY16 datasheet.
Module
Description
Core
High Performance HC08 Core with a Maximum Internal Bus Frequency of 8.0 MHz
Timer
Two 16-Bit Timers with 2 Channels (TIM A and TIM B)
Flash
16 k Bytes
RAM
512 Bytes
ADC
10-Bit Analog-to-Digital Converter
SPI
SPI Module
ESCI
Standard Serial Communication Interface (SCI) Module
Bit-Time Measurement
Arbitration
Prescaler with Fine Baud Rate Adjustment
ICG
Internal Clock Generation Module
Table 4. Dynamic Electrical Characteristics (continued)
All characteristics are for the analog chip only. Please refer to the 68HC908EY16 datasheet for characteristics of the
microcontroller chip. Characteristics noted under conditions 9.0V VSUP 16V, -40°C TJ 125°C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
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