參數(shù)資料
型號： TMS370C042NL
元件分類： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁數(shù)： 45/48頁
文件大小： 711K
代理商： TMS370C042NL
TMS370Cx36
8-BIT MICROCONTROLLER
SPNS039B – JANUARY 1996 – REVISED FEBRUARY 1997
45
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
ADC1 converter (continued)
The ADC1 module allows complete freedom in design of the sources for the analog inputs. The period of the
sample time is user-defined so that the high-impedance can be accommodated without penalty to the
low-impedance sources. The sample period begins when the SAMPLE START bit of the ADC1 control register
(ADCTL.6) is set to 1. The end of the signal sample period occurs when the conversion bit (CONVERT START,
ADCTL.7) is set to 1. After a hold time, the converter will reset the SAMPLE START and CONVERT START bits,
signaling that a conversion has started and that the analog signal can be removed.
analog timing requirements (see Figure 22)
MIN
MAX
UNIT
tsu(S)
th(AN)
tw(S)
The value given is valid for a signal with a source impedance > 1 k
. If the source impedance is < 1 k
, use a minimum sampling time of 1
μ
s.
Setup time, analog to sample command
0
ns
Hold time, analog input from start of conversion
Pulse duration, sample time per kilo-
of source impedance
18tc
ns
1
μ
s/k
Analog In
Sample Start
Convert Start
Analog Stable
th(AN)
tw(S)
tsu(S)
Figure 22. Analog Timing
Table 19 is designed to aid the user in referencing a device part number to a mechanical drawing. The table
shows a cross-reference of the device part number to the TMS370 generic package name and the associated
mechanical drawing by drawing number and name.
Table 19. TMS370Cx36 Family Package Type and Mechanical Cross-Reference
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(mil pin spacing)
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MECHANICAL NAME
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(50-mil pin spacing)
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(CLCC)
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(PLCC)
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PLASTIC LEADED CHIP CARRIER
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TMS370C036AFNT
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TMS370C036AFNA
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CERAMIC LEADED CHIP CARRIER
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SE370C736AFZT
相關(guān)PDF資料
PDF描述
TMS370C050AFNA 8-BIT MICROCONTROLLER
TMS370C050AFNL 8-BIT MICROCONTROLLER
TMS370C050AFNT 8-BIT MICROCONTROLLER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS370C150AFNT 功能描述:8位微控制器 -MCU 8-BIT MICROCONTROLER 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
TMS370C156AFNT 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TMS370C250AFNT 功能描述:8位微控制器 -MCU 8B MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
TMS370C250FNA 制造商:Texas Instruments 功能描述:
TMS370C256AFNT 功能描述:8位微控制器 -MCU 8B MCU 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
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