参数资料
型号: PIC12CE674-10I/P
厂商: Microchip Technology
文件页数: 9/129页
文件大小: 0K
描述: IC MCU OTP 2KX14 A/D&EE 8DIP
产品培训模块: Asynchronous Stimulus
标准包装: 60
系列: PIC® 12C
核心处理器: PIC
芯体尺寸: 8-位
速度: 10MHz
外围设备: POR,WDT
输入/输出数: 5
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: OTP
EEPROM 大小: 16 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
数据转换器: A/D 4x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
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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