EM78P417N/418N/419N
8-Bit Microprocessor with OTP ROM
IRC OSC Frequency (VDD=5V)
10
9
8
7
6
5
4
3
2
1
0
-40
-20
0
25
50
70
85
Temperature (℃)
Fig. 8-2 Internal RC OSC Frequency vs. Temperature, VDD=5V
9 AC Electrical Characteristic
(Ta=25 °C, VDD=5V±5%, VSS=0V)
Symbol
Parameter
Conditions
Min
Type
Max
55
Unit
%
Dclk
Input CLK duty cycle
45
50
Crystal type
RC type
100
500
DC
DC
ns
Instruction cycle time
(CLKS="0")
Tins
ns
Ttcc
Tdrh
Trst
TCC input time period
Device reset hold time
/RESET pulse width
Watchdog timer duration
Input pin setup time
Input pin hold time
(Tins+20)/N*
11.3
ns
Ta = 25°C
Ta = 25°C
Ta = 25°C
16.2
21.6
21.6
ms
ns
2000
Twdt
Tset
11.3
16.2
0
ms
ns
Thold
Tdelay
Tdrc
15
45
1
20
50
3
25
55
5
ns
Output pin delay time
ERC delay time
Cload=20pF
ns
Ta = 25°C
ns
* N = selected prescaler ratio
70 •
Product Specification (V1.0) 06.23.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
