参数资料
型号: M38D28G8-XXXHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64
封装: 10X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件页数: 15/136页
文件大小: 2856K
代理商: M38D28G8-XXXHP
Rev.3.02
Apr 10, 2008
Page 111 of 131
REJ03B0177-0302
38D2 Group
NOTES:
1. tc(
φAD): one cycle of AD conversion clock. AD conversion clock can be selected from φSOURCE/2 or φSOURCE/8. φSOURCE
represents the XIN input in the frequency/2, 4 or 8 mode and internal on-chip oscillator divided by 4 in the on-chip oscillator mode or
the low-speed mode.
When the A/D conversion is executed in the frequency/2 mode, frequency/4 mode, or frequency/8 mode, set f(XIN)
≥ 500 kHz.
Relationship among AD conversion clock frequency, power source voltage, AD conversion mode and absolute accuracy.
Table 41 A/D converter characteristics
(Vcc = 2.7 to 5.5 V, Ta =
20 to 85°C, output transistors in cut-off state, low-speed on-chip oscillator mode
included, unless otherwise noted)
Symbol
Parameter
Test conditions
Limits
Unit
Min.
Typ.
Max.
Resolution
10
Bits
ABS
Absolute accuracy
(quantification error
excluded)
10bitAD
mode
4.5V
< VCC ≤ 5.5V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤6.25MHz
4LSB
4.0V
< VCC ≤ 4.5V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤4MHz
2.7V
≤ VCC ≤ 4.0V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤VccMHz
2.7V
≤ VCC ≤ 5.5V,
f(OCO)/8, f(OCO)/32
8bitAD
mode
4.5V
< VCC ≤ 5.5V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤6.25MHz
2
4.0V
< VCC ≤ 4.5V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤4MHz
2.7V
≤ VCC ≤ 4.0V,
AD conversion clock
=f(XIN)/2, f(XIN)/8
≤VccMHz
2.7V
≤ VCC ≤ 5.5V,
f(OCO)/8, f(OCO)/32
tCONV
Conversion time(1)
10bitAD mode
tc(
φAD) × 61
tc(
φAD) × 62
μs
8bitAD mode
tc(
φAD) × 49
tc(
φAD) × 50
RLADDER Ladder resistor
12
35
100
kΩ
IVREF
Reference input
current
VREF=5V
50
150
200
μA
IIA
Analog input
current
5.0
μA
4.0
4.5
5.5
4.0
6.25
[MHz]
[V]
AD
conv
er
si
o
n
cl
o
ck
f
req
uenc
y
Power source voltage VCC
Note: f(XIN)
≥ 500kHz
2.7
10bitAD=4LSB
8bitAD=2LSB
AD conversion clock
frequency/2 mode,
frequency/4 and
frequency/8 mode:
f(XIN)/2 or
f(XIN)/8
0
(Note)
AD conversion clock
Low-speed mode and
on-chip oscillator mode:
f(OCO)/8 or
f(OCO)/32
f(XIN)/2 or f(XIN)/8
10bitAD=4LSB
8bitAD=2LSB
FLASH MEMORY VERSION
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