參數(shù)資料
型號： 12CE673
廠商： Microchip Technology Inc.
英文描述： HookUp/Lead Wire; Conductor Size AWG:18; No. Strands x Strand Size:65 x 36; Jacket Color:Black; Conductor Material:Copper; Jacket Material:Rubber; Leaded Process Compatible:Yes; Number of Conductors:1; Outer Diameter:0.144" RoHS Compliant: Yes
中文描述： 8引腳，8位CMOS微控制器與A / D轉(zhuǎn)換器和EEPROM數(shù)據(jù)存儲器
文件頁數(shù)： 41/116頁
文件大?。?/td> 671K
代理商： 12CE673
1998 Microchip Technology Inc.
Preliminary
DS40181B-page 41
PIC12CE67X
8.2
The A/D conversion time per bit is defined as T
AD
. The
A/D conversion requires 9.5 T
AD
per 8-bit conversion.
The source of the A/D conversion clock is software
selected. The four possible options for T
AD
are:
2T
OSC
8T
OSC
32T
OSC
Internal ADC RC oscillator
For correct A/D conversions, the A/D conversion clock
(T
AD
) must be selected to ensure a minimum T
AD
time
of 1.6
μ
s.
Table 8-1 shows the resultant T
AD
times derived from
the device operating frequencies and the A/D clock
source selected.
Selecting the A/D Conversion Clock
8.3
The ADCON1 and TRIS registers control the operation
of the A/D port pins. The port pins that are desired as
analog inputs must have their corresponding TRIS bits
set (input). If the TRIS bit is cleared (output), the digital
output level (V
OH
or V
OL
) will be converted.
The A/D operation is independent of the state of the
CHS2:CHS0 bits and the TRIS bits.
Configuring Analog Port Pins
Note 1:
When reading the port register, all pins
configured as analog input channel will
read as cleared (a low level). Pins config-
ured as digital inputs, will convert an ana-
log input. Analog levels on a digitally
configured input will not affect the conver-
sion accuracy.
Note 2:
Analog levels on any pin that is defined as
a digital input (including the AN3:AN0
pins), may cause the input buffer to con-
sume current that is out of the devices
specification.
TABLE 8-1:
T
AD
vs. DEVICE OPERATING FREQUENCIES
AD Clock Source (T
AD
)
Device Frequency
Operation
2T
OSC
ADCS1:ADCS0
4 MHz
1.25 MHz
1.6
μ
s
6.4
μ
s
333.33 kHz
6
μ
s
00
500 ns
(2)
2.0
μ
s
8.0
μ
s
8T
OSC
01
24
μ
s
(3)
96
μ
s
(3)
2 - 6
μ
s
(1)
32T
OSC
10
25.6
μ
s
(3)
2 - 6
μ
s
(1,4)
Internal ADC RC Oscillator
(5)
Note 1: The RC source has a typical T
AD
time of 4
μ
s.
2: These values violate the minimum required T
AD
time.
3: For faster conversion times, the selection of another clock source is recommended.
4: While in RC mode, with device frequency above 1 MHz, conversion accuracy is out of specification.
5: For extended voltage devices (LC), please refer to Electrical Specifications section.
11
2 - 6
μ
s
(1,4)
相關(guān)PDF資料
PDF描述
12CGQ150 SCHOTTKY RECTIFIER
12CTQ030 12 AMP DUAL SCHOTTKY CENTER TAP RECTIFIERS
12CTQ SCHOTTKY RECTIFIER
12CTQ035-1 SCHOTTKY RECTIFIER
12CTQ035S SCHOTTKY RECTIFIER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
12CEX57E1A 制造商:GE 功能描述:RELAY
12CGQ150 制造商:International Rectifier 功能描述:Diode Schottky 150V 35A 3-Pin(3+Tab) TO-254AA 制造商:International Rectifier 功能描述:SCHOTTKY 150V 35A 3PIN TO-254AA - Bulk 制造商:International Rectifier 功能描述:SCHOTTKY RECTIFIER CMN CTHD 35A TO-254AA; Diode Type:Schottky; Diode Configuration:Dual Common Cathode; Repetitive Reverse Voltage Vrrm Max:150V; Forward Current If(AV):35A; Forward Voltage VF Max:1.6V; No. of Pins:3 ;RoHS Compliant: No
12CGQ150SCS 制造商:International Rectifier 功能描述:Diode Schottky 150V 35A 3-Pin(3+Tab) TO-254AA 制造商:International Rectifier 功能描述:SCHOTTKY 150V 35A 3PIN TO-254AA - Bulk
12CGQ150SCV 制造商:International Rectifier 功能描述:Diode Schottky 150V 35A 3-Pin(3+Tab) TO-254AA 制造商:Unity Microelectronics Inc 功能描述:SCHOTTKY DIODE, HI-REL, QIRL 制造商:International Rectifier 功能描述:SCHOTTKY 150V 35A 3PIN TO-254AA - Bulk
12CGQ150SCX 制造商:International Rectifier 功能描述:SCHOTTKY 150V 35A 3PIN TO-254AA - Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*