EM78P258N
8-Bit Microprocessor with OTP ROM
10 Timing Diagrams
AC Test Input/Output Waveform
VDD-0.5V
GND+0.5V
0.75VDD
0.25VDD
0.75VDD
TEST POINTS
0.25VDD
AC Testing : Input is driven at VDD-0.5V for logic "1",and GND+0.5V for logic "0".Timing
measurements are made at 0.75VDD for logic "1",and 0.25VDD for logic "0".
RESET Timing (CLK="0")
Instruction 1
Executed
NOP
CLK
/RESET
Tdrh
TCC Input Timing (CLKS="0")
Tins
CLK
TCC
Ttcc
Product Specification (V1.0) 06.16.2005
• 71
(This specification is subject to change without further notice)