參數(shù)資料
型號: PIC12CE674/JW
廠商: Microchip Technology
文件頁數(shù): 9/129頁
文件大小: 0K
描述: IC MCU EPROM 2KX14 A/D&EE 8CDIP
標(biāo)準(zhǔn)包裝: 56
系列: PIC® 12C
核心處理器: PIC
芯體尺寸: 8-位
速度: 10MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 5
程序存儲器容量: 3.5KB(2K x 14)
程序存儲器類型: EPROM,UV
EEPROM 大?。?/td> 16 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 8-CDIP(0.300",7.62mm)窗口
包裝: 管件
配用: ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
PIC12C67X
DS30561B-page 106
1999 Microchip Technology Inc.
FIGURE 12-9: A/D CONVERSION TIMING
TABLE 12-8:
A/D CONVERSION REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
130
TAD
A/D clock period
PIC12C67X
1.6
——
sTOSC based, VREF ≥ 3.0V
PIC12LC67X
2.0
sTOSC based, VREF full range
PIC12C67X
2.0
4.0
6.0
sA/D RC Mode
PIC12LC67X
3.0
6.0
9.0
sA/D RC Mode
131
TCNV
Conversion time (not including S/H
time) (Note 1)
11
11
TAD
132
TACQ
Acquisition time
Note 2
5*
20
s
The minimum time is the
amplifier setting time. This
may be used if the "new"
input voltage has not
changed by more than 1 LSb
(i.e., 20.0 mV @ 5.12V) from
the last sampled voltage (as
stated on CHOLD).
134
TGO
Q4 to A/D clock start
TOSC/2 §
If the A/D clock source is
selected as RC, a time of
TCY is added before the A/D
clock starts. This allows the
SLEEP
instruction to be exe-
cuted.
135
TSWC
Switching from convert
→ sample time
1.5 §
TAD
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25
°C unless otherwise stated. These parameters are for design guidance only and
are not tested.
§
This specification ensured by design.
Note 1: ADRES register may be read on the following TCY cycle.
2: See Section 8.1 for min. conditions.
131
130
132
BSF ADCON0, GO
Q4
A/D CLK
A/D DATA
ADRES
ADIF
GO
SAMPLE
OLD_DATA
SAMPLING STOPPED
DONE
NEW_DATA
(TOSC/2)(1)
7
6
5
432
1
0
Note 1:
If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the
SLEEP
instruction to be executed.
1 TCY
134
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