參數(shù)資料
型號(hào): PCF51AC256BCPUE
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 21/42頁(yè)
文件大?。?/td> 0K
描述: MCU 8BIT 256K FLASH 64-LQFP
標(biāo)準(zhǔn)包裝: 160
系列: MCF51AC
核心處理器: Coldfire V1
芯體尺寸: 32-位
速度: 50MHz
連通性: I²C,SCI,SPI
外圍設(shè)備: LVD,PWM,WDT
輸入/輸出數(shù): 54
程序存儲(chǔ)器容量: 256KB(256K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 20x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-LQFP
包裝: 托盤
MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.7
Electrical Characteristics
Freescale Semiconductor
28
2.8
ADC Characteristics
Table 13. 5 Volt 12-bit ADC Operating Conditions
Num
C
Characteristic
Conditions
Symb
Min
Typical1
1 Typical values assume V
DDA = 5.0 V, Temp = 25 C, fADCK = 1.0 MHz unless otherwise stated. Typical values are for reference
only and are not tested in production.
Max
Unit
Comment
1
D
Supply voltage
Absolute
VDDA
2.7
5.5
V
D
Delta to VDD
(VDD – VDDA)
2
2 DC potential difference.
V
DDA
–100
0
100
mV
2
D
Ground voltage
Delta to VSS
(VSS – VSSA)
V
SSA
–100
0
100
mV
3D
Reference
voltage high
VREFH
2.7
VDDA
V
4D
Reference
voltage low
VREFL
VSSA
V
5
D
Input voltage
VADIN
VREFL
—VREFH
V
6C
Input
capacitance
CADIN
—4.5
5.5
pF
7C
Input
resistance
RADIN
—3
5
k
8
C
Analog source
resistance
12-bit mode
fADCK > 4MHz
fADCK < 4MHz
RAS
2
5
k
External
to MCU
C
10-bit mode
fADCK > 4MHz
fADCK < 4MHz
5
10
C
8-bit mode (all valid
fADCK)
——
10
9
D
ADC
conversion
clock
frequency
High speed
(ADLPC = 0)
fADCK
0.4
8.0
MHz
D
Low power
(ADLPC = 1)
0.4
4.0
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