參數(shù)資料
型號: MC68HC705JJ7CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封裝: SOIC-20
文件頁數(shù): 52/164頁
文件大小: 1165K
代理商: MC68HC705JJ7CDW
Analog Subsystem Characteristics (5.0 Vdc)
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
145
15.9 Analog Subsystem Characteristics (5.0 Vdc)
NOTE
Characteristic(1)
1. +4.5
≤ VDD ≤ +5.5 V, VSS = 0 V, TL ≤ TA ≤ TH, unless otherwise noted
Symbol
Min
Max
Unit
Voltage comparators
Input offset voltage
Common-mode range
Comparator 1 input impedance
Comparator 2 input impedance
Direct input to comparator 2 (HOLD = 1, DHOLD = 0)
Divider input to comparator 2 (HOLD = 0, DHOLD = 1)
VIO
VCMR
ZIn
800
80
15
VDD –1.5
mV
V
k
k
k
Input divider ratio (comparator 2, HOLD = 0, DHOLD =1)
VIn = 0 to VDD –1.5 V
RDIV
0.49
0.51
Analog subsystem internal VSS offset
Sum of comparator offset and IR drop through VSS
VAOFF
20
40
mV
Channel selection multiplexer switch resistance
RMUX
—3
k
External current source (PB0/AN0)
Source current (VOut = VDD/2)
Source current linearity (VOut = 0 to VDD –1.5 Vdc)
Discharge sink current (VOut = 0.4 V)
ICHG
IDIS
85
1.1
113
±1
A
%FS
mA
External capacitor (connected to PB0/AN0)
Voltage range
Discharge time
Value of external ramping capacitor
VCAP
tDIS
CEXT
VSS
5
VDD –1.5
10
2
V
ms/
F
Internal sample and hold capacitor
Capacitance
Charge/discharge time (0 to 3.5 Vdc)
Direct connection (HOLD = 1, DHOLD = 0)
Divided connection (HOLD = 0, DHOLD = 1)
Temperature diode connection (HOLD = 1, DHOLD = 1)
Leakage discharge rate
CSH
tSHCHG
tSHDCHG
tSHTCHG
CSHDIS
8
1
2
1
13
0.2
pF
s
V/sec
Internal temperature sensing diode
Voltage at TJ = 25°C
Temperature change in voltage
VD
TCD
0.65
1.8
0.71
2.0
V
mV/
°C
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