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EM78P458AM Datasheet(PDF) 57 Page - ELAN Microelectronics Corp

Part # EM78P458AM
Description  8-BIT MICRO-CONTROLLER
PDF  76 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P458AM Datasheet(HTML) 57 Page - ELAN Microelectronics Corp

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EM78P458/459
OTP ROM
6.2 AC Electrical Characteristic(Ta=0°C ~ 70 °C, VDD=5V±5%, VSS=0V)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Dclk
Input CLK duty cycle
45
50
55
%
Tins
Instruction cycle time
(CLKS="0")
Crystal type
RC type
100
500
DC
DC
ns
ns
Ttcc
TCC input period
(Tins+20)/N*
ns
Tdrh
Device reset hold time
Ta = 25
°C
9
18
30
ms
Trst
/RESET pulse width
Ta = 25
°C
2000
ns
Twdt
Watchdog timer period
Ta = 25
°C
9
18
30
ms
Tset
Input pin setup time
0
ms
Thold
Input pin hold time
20
ms
Tdelay
Output pin delay time
Cload=20pF
50
ms
*N= selected prescaler ratio.
6.3 A/D Converter Characteristic(Vdd=3.0V to 5.5V,Vss=0V,Ta=0 to 70℃)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
VAREF
3.0
Vdd
V
VASS
Analog reference voltage
VAREF - VASS≧2.5V
Vss
V
VAI
Analog input voltage
VASS
VAREF
V
IAI
Analog supply current
Vdd=VAREF=5.0V, VASS =0.0V
500
700
1000
uA
RN
Resolution
Vdd=VAREF=5.0V, VASS =0.0V
6
7
8
Bits
LN
Linearity error
Vdd = 2.5 to 5.5V Ta=25℃
0
±2
±4
LSB
DNL
Differential nonlinear error
Vdd = 2.5 to 5.5V Ta=25℃
0
±0.5
±0.9
LSB
FSE
Full scale error
Vdd=VAREF=5.0V, VASS =0.0V
±0
±2
±4
LSB
OE
Offset error
Vdd=VAREF=5.0V, VASS =0.0V
±0
±1
±2
LSB
ZAI
Recommended impedance of
analog voltage source
0
8
10
KΩ
TAD
A/D clock period
Vdd=VAREF=5.0V, VASS =0.0V
3
3.5
4
us
TCN
A/D conversion time
Vdd=VAREF=5.0V, VASS =0.0V
10
10
TAD
ADIV
A/D OP input voltage range
Vdd=VAREF=5.0V, VASS =0.0V
0
5
V
0
0.2
0.3
ADOV A/D OP output voltage swing
Vdd=VAREF=5.0V, VASS
=0.0V,RL=10KΩ
4.7
4.8
5
V
ADSR
A/D OP slew rate
Vdd=VAREF=5.0V, VASS =0.0V
0.1
0.3
V/us
PSR
Power Supply Rejection
Vdd=5.0V±0.5V
±0
±2
LSB
Note: 1.These parameters are characterized but not tested.
2.These parameters are for design guidance only and are not tested.
3.It will not consume any current other than minor leakage current, when A/D is off.
4.The A/D conversion result never decrease with an increase in the input voltage, and has no
missing code.
5.Specifications subject to change without notice.
This specification is subject to change without prior notice.
06.25.2004 (V1.4)
57



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