參數(shù)資料
型號(hào)： M37517F8HP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁(yè)數(shù)： 91/98頁(yè)
文件大小： 886K
代理商： M37517F8HP
Rev.1.01
Aug 02, 2004
page 91 of 96
7517 Group
bit
LSB
tc(
φ)
s
k
A
Resolution
Absolute accuracy (excluding quantization error)
Conversion time
Ladder resistor
Reference power source input current
A/D port input current
Min.
40
Typ.
40
35
100
0.5
Max.
10
±4
61
140
5.0
High-speed mode,
middle-speed mode
Low-speed mode
VREF = 3.3 V
Table 28 A/D converter characteristics
(VCC = 3.0 to 3.6 V, VSS = AVSS = 0 V, Ta = –20 to 85 °C, f(XIN) = 4MHz, f(XCIN) = 32 kHz, unless otherwise noted)
Unit
Limits
Parameter
–
tCONV
RLADDER
IVREF
II(AD)
Test conditions
Symbol
VREF “on”
VREF “off”
Fig. 84 Current integrator timing diagram
Table 29 Current integrator electrical characteristics
(VCC = AVCC = 3.3 V ±2 %, VSS = AVSS = 0V, Ta = –20 to 85 °C, f(XIN) = 4 MHz, f(XCIN) = 32 kHz)
Limits
Parameter
Min.
Typ.
Max.
Symbol
Unit
Test conditions
Integrate period
ISENS1 input range
Caribration time
AD conversion time at AD conversion connection mode
Integrate coefficient of integrator for discharge
Integrate coefficient of integrator for charge
Reset time of integrator for discharge
Reset time of integrator for charge
Count value at 0V input
Internal reference voltage for discharge integrator
Internal reference voltage for charge integrator
linearity error after reset time caribration
VCC = 3.3 V ±2 %
Ta = 0 to 60 °C
VCC = 3.3 V ±2 %
Ta = -20 to 85 °C
0.2
125
18
1.35
2400
0.11
–0.09
1
3
ms
V
ms
s
Vsec
ns
–
V
%
t INF
V ISENS1
t CAL
t CONV INF
AD
AC
t RD
t RC
b'
V REFD
V REFC
–
–0.2
15.625
12
0.68
–2400
0.09
–0.11
125
15
1.00
300
0.1
–0.1
tRD, tRC
tRD,
tRC
tRD, tRC
tCONVINF
tCAL
tINF
Discharge signal for
the integrator
AD conversion signal
Note : All signals are internals.
1.65V
0.85V
2.45V
Integrator output
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