EM78P5840N/41N/42N
8-Bit Microcontrollers
10 AC Electrical Characteristics
CPU Instruction Timing (Ta = 25°C, AVDD=VDD=5V, VSS=0V)
Parameter
Symbol Condition
Min
Typ
Max
Unit
Input CLK duty cycle
Dclk
Tins
-
45
50
55
%
32.768kHz
3.582MHz
60
µs
ns
Instruction cycle time
-
-
550
Device delay hold time
TCC input period
Tdrh
Ttcc
Twdt
-
-
16
-
-
-
ms
ns
*
(Tins+20)/N
Watchdog timer period
Ta = 25°C 16-30%
16
16+30% ms
*N = selected prescaler ratio
ADC Characteristics (VDD = 5V, Ta = +25°C, for Internal Reference Voltage)
Parameter
Symbol Condition
Min
Typ
44
Max
52.8
38.4
Unit
mV
mV
Upper bound offset voltage
Lower bound offset voltage
Vofh
Vofl
-
-
-
-
32
These parameters are theoretical values and have not been tested. See Section 9.2, The
Characteristics of EM78P5840N/41N/42N 10-bit ADC for further details.
Timing Characteristics (AVDD=VDD=5V,Ta=+25°C)
Description
Symbol Min
Typ
Max
Unit
Oscillator Timing Characteristics
32.768kHz
Tosc
-
400
-
-
1500
10
ms
µs
Crystal start up
3.579MHz PLL
5
Timing Characteristics On Reset
The minimum width of the reset low pulse
Trst
3
-
-
-
-
µs
The delay between reset and the start of the
program
Tdrs
18
ms
50 •
Product Specification (V1.0) 04.25.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
